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Question 13201Question →

An alternating current (AC) circuit consists of a resistor of resistance $R = 30\ \Omega$ , an inductor of inductive reactance $X_L = 80\ \Omega$ , and a capacitor of capacitive reactance $X_C = 40\ \Omega$ connected in series across an AC source of RMS voltage $150\ \text{V}$ . What is the average power dissipated in the circuit in watts?

Show answer & explanation

Answer: 270

Answer

The average power dissipated in the circuit is

270\ \text{W}

The total impedance of a series RLC circuit is

Z = \sqrt{R^2 + (X_L - X_C)^2} = \sqrt{30^2 + (80 - 40)^2} = 50\ \Omega

. The RMS current is

I_{\text{rms}} = \frac{V_{\text{rms}}}{Z} = \frac{150}{50} = 3\ \text{A}

. Because pure inductors and capacitors consume zero average power over a complete cycle, power is dissipated only across the resistor, giving

P = I_{\text{rms}}^2 R = 3^2 \times 30 = 270\ \text{W}

Step-by-Step Solution

Calculate net reactance

X = 40\ \Omega

Inductive and capacitive reactances oppose each other in phase, so net reactance is

X_L - X_C

Calculate total circuit impedance

Z = 50\ \Omega

Resistance and net reactance add in quadrature:

Z = \sqrt{R^2 + (X_L - X_C)^2}

Calculate RMS current

I_{\text{rms}} = 3\ \text{A}

Ohm's law for AC circuits gives

I_{\text{rms}} = \frac{V_{\text{rms}}}{Z}

Calculate average power dissipated

P = 270\ \text{W}

Power is dissipated exclusively by resistance in an AC circuit:

P = I_{\text{rms}}^2 R

Key Concept

Power Dissipation in AC Circuits

Estimated Time:1m 30s

Question 13202Question →

Match each form of money in List I with its corresponding defining feature or operational attribute in List II.

Click a left item, then click its matching right item

Show answer & explanation

Answer

Legal Tender matches currency legally bound for debt settlement; Bank Money matches commercial bank demand deposits transferable via cheques; Token Money matches currency whose face value exceeds material cost; Quasi-Money matches liquid assets serving as stores of value requiring conversion prior to transaction.

Legal tender is defined by law as money that must be accepted for debt settlement. Bank money represents demand deposit claims transferable by cheques. Token money has a face exchange value greater than its metallic commodity value. Quasi-money comprises near-cash assets that act as stores of value but lack immediate medium-of-exchange capability.

Step-by-Step Solution

Examine the classification criteria for each monetary form listed in List I.

Identified the legal enforcement of Legal Tender, the deposit nature of Bank Money, the face-versus-intrinsic value disparity of Token Money, and the liquidity restriction of Quasi-Money.

Accurate matching requires applying formal commercial definitions of monetary categories.

Pair each monetary term with its precise legal or financial description in List II.

Legal Tender pairs with compulsory debt settlement; Bank Money pairs with demand deposits; Token Money pairs with face value exceeding material cost; Quasi-Money pairs with store of value requiring conversion.

Each right-hand attribute describes the unique functional property of the corresponding left-hand form of money.

Key Concept

Distinguishing characteristics, legal status, and liquidity profiles of various forms of money.

Question 13203Question →

To stimulate growth in key developmental sectors such as agriculture and manufacturing without restricting the overall credit supply across the entire economy, the central bank directs commercial banks to allocate specific percentages of their loan portfolios to these designated sectors. Which type of monetary policy instrument is being deployed in this scenario?

Selective credit control

Open market operations

Cash reserve ratio adjustment

Bank rate policy

Show answer & explanation

Answer: Selective credit control

Answer

Selective credit control

Selective credit control (also known as qualitative monetary control) refers to central bank measures intended to regulate the flow of credit into specific sectors or uses in the economy. Directing commercial banks to allocate explicit loan quotas to priority sectors like agriculture and manufacturing fits this definition.

Step-by-Step Solution

Analyze the central bank's objective and implementation strategy in the given scenario.

The central bank is targeting specific sectors (agriculture and manufacturing) using credit allocation quotas rather than altering the total volume of money circulating in the economy.

Distinguishing between policies that alter aggregate credit volume versus policies that steer credit to particular uses determines the category of monetary instrument.

Classify the instrument as quantitative (general) or qualitative (selective).

Instruments that influence the destination or allocation of credit rather than its overall quantity are classified as selective or qualitative credit controls.

Quantitative tools (such as Open Market Operations, reserve requirements, and bank rates) affect the overall liquidity indiscriminate of sector, while qualitative/selective tools focus on sector-specific credit distribution.

Key Concept

Distinction between Quantitative and Qualitative/Selective Monetary Policy Instruments

Estimated Time:1m 0s

Question 13204Question →

A thin converging lens with a focal length of $20\text{ cm}$ is placed in direct contact with a thin diverging lens with a focal length of $50\text{ cm}$ . What is the combined optical power of this two-lens system in dioptres?

+3.0\text{ D}

+7.0\text{ D}

-3.0\text{ D}

+0.03\text{ D}

Show answer & explanation

Answer: $+3.0\text{ D}$

Answer

The combined optical power of the lens system is

+3.0\text{ D}

The individual power of the converging lens is

+5.0\text{ D}

and the power of the diverging lens is

-2.0\text{ D}

. Summing these values algebraically yields a net power of

+3.0\text{ D}

Step-by-Step Solution

Convert the focal length of each lens from centimeters to meters and apply sign conventions.

Converging lens focal length

f_1 = +0.20\text{ m}

; Diverging lens focal length

f_2 = -0.50\text{ m}

Optical power in dioptres requires focal length to be expressed in meters, with converging lenses being positive and diverging lenses being negative.

Calculate the individual power of each lens.

P_1 = \frac{1}{+0.20} = +5.0\text{ D}

and

P_2 = \frac{1}{-0.50} = -2.0\text{ D}

Power of a thin lens is defined as

P = \frac{1}{f}

where

f

is in meters.

Sum the individual powers to find the total power of thin lenses in contact.

P = P_1 + P_2 = +5.0\text{ D} + (-2.0\text{ D}) = +3.0\text{ D}

When thin lenses are in contact, their net optical power is equal to the algebraic sum of their individual powers.

Key Concept

Power of Thin Lenses in Contact

Estimated Time:1m 15s

Question 13205Question →

The table below shows selected economic metrics for two developing nations, Country X and Country Y, in the same fiscal year:

Indicator	Country X	Country Y
Per Capita Income ($)	4,200	2,100
Adult Literacy Rate (%)	48%	82%
Life Expectancy at Birth (Years)	54	71
Agriculture Share of GDP (%)	58%	18%

Based on the data provided, which of the following statements correctly evaluates the economic development status of both countries?

Country Y demonstrates a higher level of economic development than Country X because non-income indicators reflect better living standards, higher human capital, and structural transformation.

Country X is more economically developed than Country Y because per capita income is the sole definitive measure of national welfare.

Country X is more economically developed because nominal per capita income automatically adjusts for inflation and price level differences.

Both countries have attained an identical level of economic development because high per capita income offsets lower health and literacy scores.

Show answer & explanation

Answer: Country Y demonstrates a higher level of economic development than Country X because non-income indicators reflect better living standards, higher human capital, and structural transformation.

Answer

Country Y demonstrates a higher level of economic development than Country X because non-income indicators reflect better living standards, higher human capital, and structural transformation.

Economic development refers to sustainable improvements in economic welfare, living standards, literacy, health, and structural transformation of the economy. While Country X has a higher per capita income, Country Y significantly outperforms Country X in adult literacy (82% vs 48%), life expectancy (71 vs 54 years), and structural diversification away from agricultural dependence (18% vs 58% of GDP). Therefore, Country Y reflects a higher level of overall economic development.

Step-by-Step Solution

Distinguish between economic growth (quantitative income metrics) and economic development (qualitative welfare and structural metrics).

Country X has higher per capita income (

4,200 vs

2,100), indicating higher growth/output per head, but Country Y performs significantly better across developmental indicators.

Economic development is a multidimensional process encompassing health, education, and structural change, not just income level.

Analyze human capital and health metrics.

Country Y has a higher adult literacy rate (82% vs 48%) and higher life expectancy (71 years vs 54 years).

Higher literacy and life expectancy indicate superior human development and improved quality of life.

Analyze the structural transformation of the economy.

Country Y has a much lower share of agriculture in GDP (18% vs 58%), signaling diversification into industrial and service sectors.

Economic development is characterized by a structural shift of production away from primary agriculture toward secondary and tertiary sectors.

Key Concept

Distinction between Growth Metrics and Multidimensional Development Indicators

Estimated Time:1m 15s

Question 13206Question →

Read the unseen excerpt below:

The old cathedral looms against the sky,
Its towering spires carved in ancient stone,
Where weary travelers wander all alone,
Beneath the watchful moon that burns on high.
Soft autumn leaves descend upon the street,
And chill winds whisper through the courtyard door,
While shadows linger by the iron floor,
To guide the silent steps of passing feet.

What is the predominant rhyme scheme of the eight-line passage above?

abba cddc

abab cdcd

abba abba

abba cdcd

Show answer & explanation

Answer: abba cddc

Answer

The rhyme scheme of the passage is abba cddc.

The poem consists of two four-line stanzas (quatrains), each utilizing an enclosed envelope rhyme. The first stanza pairs 'sky'/'high' (a) around 'stone'/'alone' (b) to form 'abba'. The second stanza pairs 'street'/'feet' (c) around 'door'/'floor' (d) to form 'cddc'. Combining them gives the overall scheme 'abba cddc'.

Step-by-Step Solution

Examine the end-words of the first four lines (first quatrain)

Line 1 ends with 'sky' (a). Line 2 ends with 'stone' (b). Line 3 ends with 'alone' (b). Line 4 ends with 'high' (a). The pattern for lines 1–4 is abba.

'sky' and 'high' rhyme together (a), while 'stone' and 'alone' rhyme together (b).

Examine the end-words of the final four lines (second quatrain)

Line 5 ends with 'street' (c). Line 6 ends with 'door' (d). Line 7 ends with 'floor' (d). Line 8 ends with 'feet' (c). The pattern for lines 5–8 is cddc.

'street' and 'feet' rhyme together (c), while 'door' and 'floor' rhyme together (d).

Combine the patterns of both stanzas

The total rhyme scheme is abba cddc.

Joining the envelope rhyme structures of both quatrains yields abba cddc.

Key Concept

Analysis of End-Rhyme Scheme in Unseen Poetry

Estimated Time:1m 0s

Question 13207Question →

A nation's economy allows private entrepreneurs to set prices and produce consumer goods driven by profit motives, while the central government exclusively funds national defence, constructs public roads, and regulates monopolies to protect consumers. Which of the following statements correctly describes how resources are allocated in this economic system?

Market forces determine the production of private goods through consumer demand, while the state directly allocates resources for public goods and social welfare.

The central planning authority sets all production targets and fixes prices for both consumer goods and public services.

The price mechanism operates completely uninhibited, relying solely on private profit motives to supply public infrastructure and essential welfare services.

Private business owners assume full responsibility for state security and public infrastructure, whereas government committees determine consumer commodity prices.

Show answer & explanation

Answer: Market forces determine the production of private goods through consumer demand, while the state directly allocates resources for public goods and social welfare.

Answer

Market forces determine the production of private goods through consumer demand, while the state directly allocates resources for public goods and social welfare.

In a mixed economic system, resource allocation is shared between private individuals and the government. Private goods are allocated through consumer demand and market price signals, while the state steps in to allocate resources for public goods, social infrastructure, and regulatory oversight.

Step-by-Step Solution

Identify the economic system described in the scenario.

The coexistence of private enterprise (profit-driven production) and government intervention (public goods funding and regulation) defines a Mixed Economic System.

Recognizing the dual nature of ownership and control is essential for analyzing resource allocation mechanisms.

Analyze how resource allocation functions across sectors in a mixed economy.

The private sector uses the price mechanism (supply and demand) for commercial goods, while the public sector uses fiscal planning to supply public goods and address market failures.

Mixed economies balance economic efficiency via consumer sovereignty with social welfare via state planning.

Evaluate the options to find the correct statement describing this dual mechanism.

The option recognizing market forces for private goods and state allocation for public goods accurately captures the mixed economy framework.

It correctly assigns the respective roles of the market mechanism and government planning.

Key Concept

Dual Resource Allocation in a Mixed Economy

Estimated Time:1m 0s

Question 13208Question →

In John K. Kargbo's prescribed African drama *Let Me Die Alone*, key figures drive the tragedy of Senehun through ambition, betrayal, and sacrifice. Which dramatic action or role on the right correctly matches each character on the left?

Click a left item, then click its matching right item

Show answer & explanation

Answer

Madam Yoko matches with taking a potion of childlessness for political power; Lamboi matches with instigating Gbanya's murder and Jeneba's abduction; Musa matches with using herbal deception to frame the ruler; and Ndapi matches with serving as the chief warrior whose loyalty and daughter are exploited.

Each character in John K. Kargbo's *Let Me Die Alone* fulfills a distinct thematic and plot role. Madam Yoko sacrifices her reproductive potential for political sovereignty. Lamboi's greed fuels the tragic conspiracy. Musa acts as the deceitful medicine man facilitating the crimes. Ndapi is the warrior father whose tragic loss of his daughter Jeneba highlights the destructive consequences of usurptive ambition.

Step-by-Step Solution

Analyze the dramatic role of Madam Yoko in *Let Me Die Alone*.

Identify that Yoko chooses leadership over motherhood by taking a potion causing childlessness to consolidate power.

This establishes her unique sacrifice and political ambition in Mende society.

Examine the actions of Lamboi and Musa in driving the plot's villainy.

Lamboi initiates the conspiracy to usurp power, while Musa provides the mystical craft and poisonous herbs to execute the murders.

Their coalition forms the primary antagonist force framing Madam Yoko.

Determine Ndapi's function within the chiefdom's military and plot structure.

Ndapi serves as the chief warrior whose daughter Jeneba is brutally slain to turn the people against Yoko.

His grief and military status are manipulated by Lamboi and Musa.

Key Concept

Textual Analysis of Character Roles and Plot Dynamics in Prescribed African Drama

Question 13209Question →

A merchant refuses to accept a private company's promissory note in settlement of a debt, but readily accepts banknotes issued by the Central Bank. Which fundamental characteristic of money accounts for the universal willingness of traders to accept banknotes in commercial transactions?

General acceptability

Portability

Durability

Divisibility

Show answer & explanation

Answer: General acceptability

Answer

General acceptability is the primary characteristic that makes banknotes universally receivable for goods and services.

General acceptability is the most essential quality of money. Banknotes issued by the central bank are designated as legal tender, meaning members of the public are legally required and socially willing to accept them in discharge of debts. Private promissory notes lack this universal public trust and statutory mandate.

Step-by-Step Solution

Analyze the commercial scenario described in the stem.

The scenario contrasts a private debt instrument (promissory note) with legal tender (central bank banknotes).

Understanding why one instrument is accepted while another is rejected clarifies the required attribute of money.

Evaluate the core characteristics of money against the scenario.

Central bank currency possesses general acceptability backed by law (legal tender status), whereas private notes depend on individual credit trust.

Without general acceptability, an item cannot effectively perform as money across all economic transactions.

Key Concept

General Acceptability as an Essential Characteristic of Money

Estimated Time:1m 0s

Question 13210Question →

Unlike capital, which is a man-made agent of production with an elastic supply, land is fixed in total supply to the overall economy, meaning its economic reward is entirely demand-determined.

True

False

Show answer & explanation

Answer: True

Answer

The statement is true because the total supply of land is fixed (perfectly inelastic) to the economy as a whole, making its economic reward (rent) entirely dependent on demand.

Land is a primary factor of production provided by nature without human cost. Because its overall quantity cannot be expanded, its supply is perfectly inelastic, causing its economic reward (rent) to be governed entirely by demand.

Step-by-Step Solution

Analyze the fundamental characteristics of capital versus land.

Capital consists of man-made physical or financial assets whose supply can be increased or decreased over time, whereas land is a natural factor whose overall supply is physically fixed.

Identifying the supply characteristics of factors of production determines how their economic returns are structured.

Examine the price-determination mechanism for a factor with fixed supply.

Because total land supply cannot adjust in response to price changes, the economic rent accrued to land owners is dictated solely by the level of demand from producers.

When factor supply is completely inelastic, supply curves are vertical, making market price a direct function of demand.

Key Concept

Inelasticity of land supply and demand-determined rent

Question 13211Question →

In commercial operations, distinct productive contributions receive specific economic rewards. Match each business contribution listed on the left with its corresponding factor of production and economic reward on the right.

Click a left item, then click its matching right item

Show answer & explanation

Answer

Packaging machine matches Capital (Interest); Commercial real estate plot matches Land (Rent); Risk-bearing founder matches Enterprise (Profit); Certified auditor matches Labour (Wages/Salaries).

Each business input correctly aligns with its economic definition: man-made machinery represents Capital (Interest), real estate ground space represents Land (Rent), entrepreneurial risk-bearing represents Enterprise (Profit), and professional human effort represents Labour (Wages/Salaries).

Step-by-Step Solution

Identify the factor of production and reward for physical man-made tools.

The automated packaging machine is a man-made instrument of production (Capital), earning Interest.

Capital encompasses durable equipment created to aid further goods production.

Identify the factor of production and reward for natural/geographical site usage.

The leased commercial real estate plot represents natural space (Land), earning Rent.

Land covers all natural resources and physical space whose supply is fixed, earning rent.

Identify the factor of production and reward for risk-taking and business organization.

The founder coordinating operations and bearing financial risk is Enterprise, earning Profit.

Enterprise coordinates other factors and undertakes uninsurable risks in anticipation of residual profit.

Identify the factor of production and reward for human service provision.

The auditor providing professional analytical services for contractual payment is Labour, earning Salaries.

Labour covers human effort (mental or physical) exerted for economic remuneration.

Key Concept

Factors of Production and Their Rewards

Estimated Time:1m 30s

Question 13212Question →

Complete the literary analysis of Dylan Thomas's prescribed non-African poem by filling in the missing terms.

Fill in the blanks below

Dylan Thomas's poem 'Do Not Go Gentle Into That Good Night' is composed in the fixed poetic form of a nineteen-line , featuring two repeating refrains across six stanzas. Furthermore, the recurring phrase 'that good night' functions as a central representing death.

Show answer & explanation

Answer

The first blank is 'villanelle' and the second blank is 'metaphor' (or 'euphemism').

Dylan Thomas's 'Do Not Go Gentle Into That Good Night' is a classic example of a villanelle, a nineteen-line form consisting of five tercets and one quatrain with two recurring refrains. The phrase 'that good night' serves as a metaphor comparing the arrival of night to human death.

Step-by-Step Solution

Identify the structural poetic form of Dylan Thomas's poem 'Do Not Go Gentle Into That Good Night'.

The poem consists of nineteen lines divided into five tercets and a concluding quatrain with a strict refrain pattern, which defines a villanelle.

Recognizing fixed poetic forms is essential for structural analysis of prescribed non-African poetry.

Analyze the figurative device used in the phrase 'that good night'.

The phrase directly equates darkness/night with death without using comparative words like 'as' or 'like', making it a metaphor.

Identifying tropes and figurative language clarifies the poem's central theme of mortality.

Key Concept

Poetic Structure and Metaphorical Language in Prescribed Non-African Poetry

Question 13213Question →

Nkechi was appointed by Bature Enterprises as a commercial agent to store and sell a consignment of agricultural machinery. In performing her duties, Nkechi incurred and paid $450,000$ Naira for necessary warehousing and freight out of her personal funds. Before any sale was executed, Bature Enterprises abruptly revoked her authority and demanded the immediate surrender of all machinery without reimbursing her expenses or paying her accrued commission. Under the Law of Agency, what legal right can Nkechi exercise regarding the machinery in her possession?

She has a right of particular lien over the machinery, enabling her to retain possession until her lawful expenses and commission are paid.

She automatically acquires full legal title to the machinery, allowing her to sell it as the owner to recover her out-of-pocket expenses.

She must surrender the machinery immediately upon revocation and can only sue for damages without holding the principal's property.

She can claim full financial restitution under the strict legal principles of life assurance indemnity.

Show answer & explanation

Answer: She has a right of particular lien over the machinery, enabling her to retain possession until her lawful expenses and commission are paid.

Answer

Nkechi has a right of particular lien over the machinery, enabling her to retain possession until her lawful expenses and commission are paid by Bature Enterprises.

Under the Law of Agency, an agent who has lawfully incurred necessary expenses (such as freight and storage) and earned remuneration in handling the principal's goods is entitled to a right of particular lien. This right allows the agent to lawfully retain possession of the goods against the principal until all lawful claims for reimbursement and commission regarding those specific goods are satisfied.

Step-by-Step Solution

Identify the agent's rights when out-of-pocket expenses and commission are owed by the principal.

Under commercial agency law, an agent has a right to be indemnified for expenses reasonably incurred and to receive agreed remuneration.

Agents act on behalf of principals and should not suffer personal financial loss for authorized actions.

Determine the legal mechanism available to secure unpaid claims when the agent has possession of the principal's goods.

The agent possesses a possessory right of lien over the principal's goods currently in the agent's lawful custody.

A particular lien allows the agent to hold the specific goods in respect of which the debt (expenses and commission) was incurred until payment is made.

Evaluate the effect of the principal's abrupt revocation of agency.

While a principal can generally revoke an agent's authority, such revocation does not destroy existing accrued rights or possessory liens held by the agent.

Pre-existing possessory security rights remain intact despite revocation of future authority to act.

Key Concept

Agent's Right of Lien and Right to Indemnity

Estimated Time:2m 0s

Question 13214Question →

At a geomagnetic observation post in West Africa, the total intensity of the Earth's magnetic field is $5.0 \times 10^{-5}\text{ T}$ and its vertical component is $4.0 \times 10^{-5}\text{ T}$ . What is the horizontal component of the Earth's magnetic field at this location?

3.0 \times 10^{-5}\text{ T}

1.0 \times 10^{-5}\text{ T}

6.4 \times 10^{-5}\text{ T}

9.0 \times 10^{-5}\text{ T}

Show answer & explanation

Answer: $3.0 \times 10^{-5}\text{ T}$

Answer

The horizontal component of the Earth's magnetic field is

3.0 \times 10^{-5}\text{ T}

The Earth's total magnetic field

B

is resolved into perpendicular components: horizontal (

B_h

) and vertical (

B_v

). Applying the Pythagorean theorem

B^2 = B_h^2 + B_v^2

yields

B_h = \sqrt{(5.0 \times 10^{-5})^2 - (4.0 \times 10^{-5})^2} = 3.0 \times 10^{-5}\text{ T}

Step-by-Step Solution

Identify the relationship between total magnetic field intensity and its orthogonal components.

The total magnetic field

B

, horizontal component

B_h

, and vertical component

B_v

form a right triangle:

B^2 = B_h^2 + B_v^2

The horizontal and vertical components of the Earth's magnetic field are mutually perpendicular.

Rearrange the equation to solve for the horizontal component

B_h

B_h = \sqrt{B^2 - B_v^2}

Isolating

B_h

allows direct substitution of the given values.

Substitute the values

B = 5.0 \times 10^{-5}\text{ T}

and

B_v = 4.0 \times 10^{-5}\text{ T}

into the equation.

B_h = \sqrt{(5.0 \times 10^{-5})^2 - (4.0 \times 10^{-5})^2} = \sqrt{(25 - 16) \times 10^{-10}} = \sqrt{9 \times 10^{-10}} = 3.0 \times 10^{-5}\text{ T}

Evaluating the square root yields the exact magnitude of the horizontal magnetic field component.

Key Concept

Resolution of Earth's magnetic field into mutually perpendicular horizontal and vertical components using vector geometry.

Question 13215Question →

Match each telecommunications and internet tool listed on the left with its corresponding primary function in business communication on the right.

Click a left item, then click its matching right item

Show answer & explanation

Answer

Teleconferencing matches with conducting real-time interactive audio-visual meetings; Voice over Internet Protocol (VoIP) matches with routing voice calls over packet-switched internet protocol networks; Electronic Mail (E-mail) matches with transmitting written messages, formal digital letters, and attached documents asynchronously; Corporate Intranet matches with providing a secure, private internal network restricted to staff.

Each telecommunications tool is paired with its specific operational definition and commercial application. Teleconferencing connects remote participants in real-time meetings; Voice over Internet Protocol (VoIP) transmits voice calls via broadband internet; Electronic Mail (E-mail) enables asynchronous written communication; and a Corporate Intranet restricts internal resource access to company personnel.

Step-by-Step Solution

Identify the primary function of Teleconferencing.

Teleconferencing facilitates real-time, interactive audio-visual communication between people in distant places.

It allows managers and stakeholders to hold virtual meetings without physical travel.

Identify the technological mechanism of Voice over Internet Protocol (VoIP).

VoIP routes voice conversations over digital broadband IP networks.

It bypasses conventional PSTN landline charges, reducing telecommunication expenses.

Determine the role of Electronic Mail (E-mail).

E-mail serves as an asynchronous tool for exchanging text communications and documents.

It replaces postal correspondence for rapid, written business record-keeping.

Analyze the access boundary of a Corporate Intranet.

An Intranet is an internal web-based network restricted to authorized company personnel.

It protects internal business communications and policies from external public access.

Key Concept

Classification and Business Application of Internet and Telecommunication Tools

Question 13216Question →

Small-scale production enterprises typically feature an extensive division of labour and a high degree of specialization among their workforce.

True

False

Show answer & explanation

Answer: False

Answer

The statement is false. Small-scale production enterprises operate with limited output volumes and small workforces, which restricts the scope for implementing an extensive division of labour. Specialized task division is a fundamental characteristic of large-scale production.

Extensive division of labour requires mass output, heavy machinery, and a large workforce to sustain specialized roles. Small-scale production enterprises operate under limited capital and small staff numbers, forcing workers to execute multiple general tasks rather than highly specialized processes.

Step-by-Step Solution

Examine the prerequisites for extensive division of labour in production.

Subdividing work into minute, repetitive tasks requires high output volume, market demand, and a large workforce to keep specialized workers continuously occupied.

Without sufficient scale, specialized workers remain idle, causing operational inefficiency.

Analyze the operational constraints of small-scale production.

Small-scale firms possess limited capital, small machinery, and a small employee count.

These resource limits make breaking down tasks into highly specialized individual roles economically impractical.

Differentiate worker roles between small-scale and large-scale enterprises.

Workers in small-scale units undertake general, multi-functional duties, whereas large-scale units employ specialized workers along assembly lines.

Extensive specialization and division of labour are hallmarks of large-scale, mass-production systems.

Key Concept

Constraints on Division of Labour in Small-Scale Production

Question 13217Question →

The following financial balance summary belongs to Kofi Retail Enterprises at the end of its trading period:

- Fixed Assets: $\text{₦}1,800,000$
- Current Assets: $\text{₦}650,000$
- Current Liabilities: $\text{₦}250,000$
- Long-term Loan: $\text{₦}400,000$

What is the Capital Employed of the business?

\text{₦}2,200,000

\text{₦}2,450,000

\text{₦}2,700,000

\text{₦}1,800,000

Show answer & explanation

Answer: $\text{₦}2,200,000$

Answer

The Capital Employed of Kofi Retail Enterprises is

\text{₦}2,200,000

Capital Employed is computed either as

\text{Fixed Assets} + \text{Working Capital}

\text{Total Assets} - \text{Current Liabilities}

. Working Capital is

\text{₦}650,000 - \text{₦}250,000 = \text{₦}400,000

. Adding this to Fixed Assets (

\text{₦}1,800,000

) gives

\text{₦}2,200,000

Step-by-Step Solution

Calculate Working Capital

Working Capital = Current Assets - Current Liabilities =

\text{₦}650,000 - \text{₦}250,000 = \text{₦}400,000

Working Capital represents the net operational liquidity available to the firm.

Calculate Capital Employed

Capital Employed = Fixed Assets + Working Capital =

\text{₦}1,800,000 + \text{₦}400,000 = \text{₦}2,200,000

Capital Employed measures the total value of assets utilized by the business to generate revenue (or Total Assets minus Current Liabilities).

Key Concept

Capital Employed Calculation

Estimated Time:1m 30s

Question 13218Question →

Match each Central Bank function or monetary policy instrument in Column I with its corresponding operational description in Column II.

Click a left item, then click its matching right item

Show answer & explanation

Answer

Moral Suasion matches informal persuasion or guidance; Lender of Last Resort matches provision of emergency financial accommodation; Special Deposits matches mandatory compulsory funds beyond statutory reserve ratios; Bank Rate matches the minimum official discount rate charged to commercial banks.

Each instrument accurately aligns with its operational definition: Moral Suasion represents informal advice to commercial banks; Lender of Last Resort provides emergency liquidity assistance to banks in distress; Special Deposits freeze extra cash reserves beyond standard statutory ratios; and the Bank Rate is the official rate for central bank lending.

Step-by-Step Solution

Differentiate qualitative tools, quantitative tools, and traditional functions of the Central Bank.

Moral Suasion is qualitative/persuasive; Lender of Last Resort is a core traditional function; Special Deposits and Bank Rate are quantitative instruments.

Classifying each item helps connect its economic mechanism to its specific operational definition.

Pair each concept in Column I with its matching description in Column II.

Moral Suasion connects to informal persuasion; Lender of Last Resort connects to emergency assistance; Special Deposits connects to immobilising extra liquidity; Bank Rate connects to the central bank's discount lending rate.

Matches every Central Bank instrument and function precisely to its established role in monetary regulation.

Key Concept

Central Bank Functions and Monetary Policy Instruments

Estimated Time:1m 0s

Question 13219Question →

During a anatomical examination of the circulatory system in adult ectothermic vertebrates, a biologist observes a heart containing two auricles (atria) and a single ventricle that is partially divided by an incomplete septum. Which class of vertebrates possesses this cardiac architecture?

Reptilia

Amphibia

Pisces

Aves

Show answer & explanation

Answer: Reptilia

Answer

Reptilia

Members of the class Reptilia (such as lizards, snakes, and turtles) feature a three-chambered heart composed of two auricles and a single ventricle partially divided internally by an incomplete septum, which minimizes the mixing of oxygenated and deoxygenated blood streams.

Step-by-Step Solution

Identify the key anatomical features described in the stem.

The heart has two auricles and one ventricle with an incomplete partition (septum).

This structural pattern determines the evolutionary stage of the vertebrate circulatory system.

Compare heart chamber configurations across poikilothermic vertebrate classes.

Pisces have 2 chambers (1 auricle, 1 ventricle); Amphibia have 3 chambers (2 auricles, 1 undivided ventricle); Reptilia have 3 chambers (2 auricles, 1 partially divided ventricle).

The partial ventricular septum is a key evolutionary adaptation in non-crocodilian reptiles that reduces mixing of oxygenated and deoxygenated blood.

Key Concept

Cardiac anatomical modifications across poikilothermic vertebrate classes

Question 13220Question →

Match each Central Bank monetary policy instrument in Column A with its correct operational mechanism in Column B.

Click a left item, then click its matching right item

Show answer & explanation

Answer

Bank Rate Policy matches the official minimum rediscount rate for commercial bills; Cash Reserve Ratio matches the statutory percentage of deposits kept with the central bank; Moral Suasion matches informal non-statutory persuasion and guidance; Open Market Operations match the buying and selling of government securities.

Each instrument correctly corresponds to its primary function: Bank Rate Policy sets the rediscount rate for commercial bills, Cash Reserve Ratio dictates the required cash percentage held at the central bank, Moral Suasion acts through informal guidance, and Open Market Operations alter liquidity via buying/selling treasury securities.

Step-by-Step Solution

Differentiate between quantitative and selective monetary tools.

Bank Rate, CRR, and OMO represent quantitative instruments controlling total liquidity, while Moral Suasion is a selective (qualitative) tool guiding credit distribution.

Categorizing instruments ensures clarity between general volume controls and persuasive directives.

Pair each instrument with its specific operational mechanism.

Bank Rate controls borrowing cost/rediscounts; CRR sets mandatory cash holding percentages; Moral Suasion relies on informal advice; OMO operates via market purchase and sale of securities.

Aligning instruments to their operational definitions confirms full conceptual understanding of Central Bank monetary policy instruments.

Key Concept

Central Bank Monetary Policy Instruments and Operational Mechanisms

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