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13931 questions

All types13,931 Multiple choice7,139 True / False771 Numeric1,526 Matching2,583 Ordering631 Fill in the blank1,223 Short answer58

Question 13321Question →

Customs authorities transfer seized contraband items and goods left unclaimed beyond the statutory clearance period to a bonded warehouse, where the importer retains normal rights to inspect, repackage, and defer duty payments.

True

False

Show answer & explanation

Answer: False

Answer

The statement is False. Contraband and overstayed unclaimed goods are deposited into a State Warehouse for government confiscation or public auction, whereas a bonded warehouse stores legitimate imported goods awaiting customs duty settlement.

The correct evaluation is that the statement is false because contraband items and overstayed cargo fall under the custody of a State (or Queen's/Government) Warehouse. In a State Warehouse, goods are held for government forfeiture or auction. Bonded warehouses, by contrast, are licensed for storing legally imported dutiable goods under customs supervision until duty is paid or the goods are re-exported.

Step-by-Step Solution

Analyze the legal status of the goods described in the statement.

The statement refers to seized contraband and unclaimed goods left beyond the statutory port period.

Identifying the nature of the goods is necessary to determine which government-regulated warehouse handles them.

Differentiate the statutory functions of a State Warehouse from a Bonded Warehouse.

State (Government) Warehouses hold impounded contraband and overstayed goods for auction, whereas Bonded Warehouses hold legal dutiable imports while duties remain unpaid.

Importers lose possession rights over seized or abandoned goods, making duty deferment and repackaging inapplicable.

Evaluate the truth value of the stem based on warehouse classification rules.

The statement misattributes the custodial functions of a State Warehouse to a Bonded Warehouse, rendering it False.

Bonded warehouses require customs bond guarantees for valid trade goods, not impounded law-breaking cargo.

Key Concept

Distinction between State (Government) Warehouses and Bonded Warehouses

Question 13322Question →

Which fundamental Rochdale principle determines the decision-making power of individual members during meetings in a cooperative society?

Voting rights are distributed on the basis of one member, one vote

Voting power is directly proportional to the number of shares held

Voting rights are allocated according to total annual patronage volume

Voting rights are reserved exclusively for members of the executive committee

Show answer & explanation

Answer: Voting rights are distributed on the basis of one member, one vote

Answer

Voting rights are distributed on the basis of one member, one vote

The principle of democratic control in cooperative societies ensures equal participation by granting every registered member exactly one vote regardless of the amount of share capital contributed.

Step-by-Step Solution

Identify the core Rochdale principle regarding governance in cooperative societies.

Democratic member control is established under the principle of equality.

Unlike limited liability companies where share ownership dictates control, cooperatives prioritize member equality.

Apply the democratic control rule to member voting rights.

Each member receives one vote irrespective of capital contribution.

This prevents financial dominance by wealthy members and preserves the mutual benefit purpose of the society.

Key Concept

Democratic Control in Cooperative Societies

Estimated Time:45s

Question 13323Question →

Over time, human societies evolved different forms of payment to facilitate trade and overcome the drawbacks of earlier media of exchange. Arrange the following forms of money in chronological order of their historical emergence in commerce, from the earliest to the most recent.

Drag items to arrange them in the correct order

Show answer & explanation

Answer

The correct chronological sequence of monetary emergence is commodity money, followed by metallic money, paper money, and finally electronic money.

Money evolved systematically to improve trade efficiency: starting with useful physical goods (commodity money), advancing to standardized metals (metallic money), shifting to paper claims backed by reserves (paper money), and ultimately evolving into computer-stored data (electronic money).

Step-by-Step Solution

Identify the earliest medium of exchange introduced after barter.

Commodity money (items like salt or cowrie shells with intrinsic value) was adopted first.

Early commercial communities required a mutually acceptable physical item to resolve the double coincidence of wants inherent in barter.

Identify the medium that solved issues of commodity bulkiness and perishability.

Metallic money (stamped gold and silver coins) was introduced next.

Metals provided standardized purity, high durability, and portability relative to bulky commodities.

Determine the transition from physical precious metal circulation to paper representation.

Paper money developed through goldsmith receipts and bank certificates.

Traders deposited heavy metal coins with goldsmiths for safekeeping and began exchanging paper deposit receipts directly.

Identify the computer-based stage of payment evolution.

Electronic money is the final and most recent evolutionary phase.

Telecommunication networks and banking automation enabled instant, paperless credit transfers and digital monetary balances.

Key Concept

Historical evolution of forms of money

Question 13324Question →

A logistics firm updates its stock records instantly whenever goods arrive at the warehouse using handheld barcode scanners linked to a central database. Which data processing method does this operation illustrate?

Online real-time processing

Batch processing

Deferred processing

Commercial service processing

Show answer & explanation

Answer: Online real-time processing

Answer

Online real-time processing is the method where data is entered and records are updated immediately upon transaction occurrence.

Online real-time processing captures data at the exact moment a transaction occurs (such as scanning barcodes upon arrival) and immediately updates the system records so that current stock levels are reflected without delay.

Step-by-Step Solution

Analyze the operational scenario

Goods are scanned and stock records update instantaneously at the point of entry.

Immediate update of master files upon input defines real-time processing.

Distinguish between data processing modes

Instant updates contrast with batch processing (delayed group updates) and deferred processing.

Selecting the option corresponding to instant database update accurately identifies online real-time processing.

Key Concept

Computerized Data Processing Methods (Real-time vs Batch)

Estimated Time:1m 0s

Question 13325Question →

Match each commercial document used in home trade on the left with its primary functional definition on the right.

Click a left item, then click its matching right item

Show answer & explanation

Answer

Pro Forma Invoice matches with the document sent to demand payment in advance; Consignment Note matches with the document given to an independent carrier detailing shipment; Statement of Account matches with the periodic summary of transactions and net balance; Letter of Inquiry matches with the buyer's request for price and terms details.

In home trade, documents serve distinct accounting and transport functions: a Pro Forma Invoice requests advance payment or presents preliminary charges; a Consignment Note gives transport details to an independent carrier; a Statement of Account summarizes periodic transactions and balance outstanding; and a Letter of Inquiry initiates trade by requesting price details from suppliers.

Step-by-Step Solution

Examine the specific commercial purpose of each document in home trade logistics and accounting.

Pro Forma Invoice is used for pre-payment or preliminary pricing; Consignment Note is for third-party freight transport; Statement of Account summarizes period balances; Letter of Inquiry begins buyer-seller negotiations.

Differentiating logistics documents from preliminary and periodic accounting documents is essential for correct matching.

Pair each home trade document with its corresponding functional description.

Pro Forma Invoice -> payment in advance demand; Consignment Note -> independent carrier transport instructions; Statement of Account -> periodic summary of transactions and balance; Letter of Inquiry -> buyer request for price terms.

Aligning each term with its unique commercial role accurately completes the matching set.

Key Concept

Functions of Commercial Documents in Home Trade

Question 13326Question →

During the vaporization of a pure liquid at its boiling point under constant atmospheric pressure, the absorbed thermal energy increases the average kinetic energy of the molecules while maintaining a constant temperature.

True

False

Show answer & explanation

Answer: False

Answer

False. Temperature is directly proportional to the average kinetic energy of molecules. Because temperature remains constant during phase changes, the average kinetic energy remains unchanged, while the latent heat increases molecular potential energy.

The correct answer is False because temperature measures average kinetic energy directly. Since temperature remains constant during boiling, molecular kinetic energy cannot increase; instead, heat input goes entirely into increasing molecular potential energy.

Step-by-Step Solution

Relate temperature to molecular kinetic energy.

By the kinetic theory of matter, absolute temperature

T

is directly proportional to the average translational kinetic energy

\frac{1}{2}m\bar{v}^2

of the molecules.

Temperature is a microscopic measure of molecular motion.

Examine the state of temperature during vaporization at the boiling point.

During boiling, temperature remains constant until the phase change from liquid to gas is completely finished.

Latent heat absorption occurs at constant temperature.

Deduce which molecular energy component changes during latent heat absorption.

Since temperature does not change, average kinetic energy stays constant. The absorbed latent heat increases intermolecular potential energy by breaking intermolecular bonds and performing work during expansion against atmospheric pressure.

Thermal energy supplied during a phase transition goes into potential energy rather than kinetic energy.

Key Concept

Microscopic interpretation of latent heat and temperature during a phase change

Question 13327Question →

A nation's government allocates a significant portion of its annual budget toward upgrading technical vocational centers, modernizing energy infrastructure, and importing advanced industrial technology. Which of the following best explains how these measures directly drive long-term economic growth?

They expand the economy's productive capacity, resulting in an outward shift of the Production Possibility Curve (PPC).

They reallocate existing labor and capital resources from agriculture to manufacturing, causing a movement along the static Production Possibility Curve (PPC).

They immediately guarantee an equitable distribution of wealth and improved quality of life for all socio-economic classes.

They increase nominal national income solely by raising price levels across sectors without increasing real output.

Show answer & explanation

Answer: They expand the economy's productive capacity, resulting in an outward shift of the Production Possibility Curve (PPC).

Answer

Investing in technical skills, infrastructure, and technology drives long-term economic growth by expanding the economy's productive capacity, which shifts the Production Possibility Curve (PPC) outward.

Economic growth is driven by fundamental factors such as human capital development, infrastructure investments, and technological advancements. These factors increase aggregate productivity and expand the maximum potential output of the nation, which is depicted visually as an outward shift of the Production Possibility Curve.

Step-by-Step Solution

Identify the core growth factors described in the stem.

The actions described—upgrading vocational training, improving energy infrastructure, and adopting advanced technology—represent capital accumulation, human capital development, and technological progress.

These factors directly affect the supply side of an economy by increasing efficiency and resource quality.

Analyze how supply-side improvements impact macroeconomic capacity.

Enhanced labor skills and superior technology allow an economy to produce more goods and services with given resources.

Economic growth is fundamentally defined as an increase in an economy's potential output over time.

Relate potential output expansion to graphical representation.

An expansion in total potential output corresponds to an outward (rightward) shift of the Production Possibility Curve (PPC).

A movement along a static PPC reflects resource trade-offs, whereas an outward shift represents structural growth in productive capacity.

Key Concept

Determinants of Economic Growth and PPC Shifts

Question 13328Question →

A retail store owner in Enugu needs to settle monthly invoices of varying amounts from five different local suppliers simultaneously through her commercial bank using a single payment instruction. Which means of payment is most suitable for this transaction?

Bank draft

Credit transfer

Standing order

Postal order

Show answer & explanation

Answer: Credit transfer

Answer

Credit transfer

Credit transfer (also known as bank giro transfer) allows a bank account holder to issue a single instruction and payment to their bank to distribute funds directly to multiple creditors' accounts, regardless of the bank branches involved.

Step-by-Step Solution

Analyze the requirements of the transaction

The transaction involves multiple suppliers, varying invoice amounts, a single payment instruction, and execution via a commercial bank.

Identifying transaction features helps determine the appropriate banking mechanism.

Evaluate the suitability of available payment instruments

Credit transfer enables a customer to debit their account once to settle multiple debts at different banks, whereas standing orders require fixed amounts, bank drafts require individual creation per payee, and postal orders are post office instruments for small sums.

Credit transfer is specifically designed for bulk, variable multi-payee settlements through commercial banks.

Key Concept

Means of Payment in Home Trade

Estimated Time:1m 0s

Question 13329Question →

A commercial enterprise is converting its paper-based sales records into a computerized data processing system. Arrange the following end-to-end stages of the electronic data processing (EDP) cycle in their correct chronological sequence, from initial record origination to final record retention.

Drag items to arrange them in the correct order

Show answer & explanation

Answer

The correct sequence of stages in the electronic data processing cycle is: (1) Capturing raw commercial transaction details on source documents, (2) Converting and transcribing source document entries into computer-readable digital format, (3) Performing automated validation checks, running calculations, and updating master business records, and (4) Generating financial management summary reports and writing encrypted backup archives to secure storage media.

The electronic data processing cycle strictly follows a logical four-phase progression: Data Origination/Collection (capturing raw sales receipts) → Data Input (converting source documents into digital form) → Data Processing (executing validation and updating master ledgers) → Data Output/Storage (producing summary reports and archiving to backup media).

Step-by-Step Solution

Identify the initial origination stage of business records.

Capturing raw commercial transaction details on source documents must be placed first as data origination precedes all computerized activity.

Without raw transaction data captured on source documents, there is no input data available for electronic processing.

Identify the data entry/transcription stage.

Converting and transcribing source document entries into computer-readable digital format follows data collection.

Source records must be encoded or keyed into machine-readable format before the computer system can execute operations on them.

Identify the central processing stage.

Performing automated validation checks, running calculations, and updating master business records follows data input.

Once data is entered into the system, software algorithms process the inputs to alter and compute master file records.

Identify the final output and storage/archiving stage.

Generating financial management summary reports and writing encrypted backup archives to secure storage media completes the cycle.

Information outputs and permanent record retention occur after data has been fully processed and master files updated.

Key Concept

Electronic Data Processing (EDP) Cycle in Business Records Management

Estimated Time:2m 0s

Question 13330Question →

Chief Emeka attempts to take out a fire insurance policy on his neighbor's commercial warehouse, despite having no financial stake or legal connection to the property. The insurance company refuses to issue the policy on the grounds that he does not stand to suffer any direct financial loss if the building is destroyed. Which basic principle of insurance is Chief Emeka failing to satisfy?

Insurable interest

Utmost good faith

Indemnity

Subrogation

Show answer & explanation

Answer: Insurable interest

Answer

Insurable interest is the correct principle because a person must have a financial or legal stake in the insured item to take out a valid insurance contract.

Insurable interest is the foundational requirement stating that a policyholder must possess a recognized financial or legal relationship with the item being insured, such that its loss would cause them direct financial hardship.

Step-by-Step Solution

Analyze the relationship between Chief Emeka and his neighbor's property

Chief Emeka has no financial or legal ownership stake in the neighbor's warehouse.

To insure any property, the law requires that the proposer will suffer direct financial harm if the subject matter is damaged or destroyed.

Identify the insurance principle governing legal financial interest in property

The requirement of having a legal financial stake is known as insurable interest.

Without insurable interest, an insurance contract becomes a mere gambling contract, which is legally void.

Key Concept

Principle of Insurable Interest

Estimated Time:45s

Question 13331Question →

An electric engine delivers a constant power of $600\text{ W}$ to move a $50\text{ kg}$ box at a constant speed of $4\text{ m s}^{-1}$ along a horizontal surface. What is the coefficient of kinetic friction between the box and the surface? (Take $g = 10\text{ m s}^{-2}$ )

0.30

1.20

3.00

4.80

Show answer & explanation

Answer: $0.30$

Answer

The coefficient of kinetic friction between the box and the surface is 0.30.

The option stating 0.30 is correct because the power delivered by the engine

P = F v

yields an applied force of

150\text{ N}

. Since velocity is constant, the frictional force equals

150\text{ N}

. Dividing by the normal force

N = mg = 500\text{ N}

gives

\mu_k = 0.30

Step-by-Step Solution

Calculate the pulling force exerted by the engine using the relationship between power, force, and velocity.

F = \frac{P}{v} = \frac{600\text{ W}}{4\text{ m s}^{-1}} = 150\text{ N}

Power is defined as work per unit time, or force multiplied by constant speed.

Determine the frictional force acting on the box.

f_k = F = 150\text{ N}

Since the box moves at a constant velocity, net horizontal force is zero, meaning pulling force equals kinetic friction force.

Calculate the normal reaction force exerted by the surface on the box.

N = m g = 50\text{ kg} \times 10\text{ m s}^{-2} = 500\text{ N}

On a horizontal plane, normal reaction equals the weight of the object.

Compute the coefficient of kinetic friction.

\mu_k = \frac{f_k}{N} = \frac{150\text{ N}}{500\text{ N}} = 0.30

The coefficient of kinetic friction is the ratio of kinetic friction force to normal reaction force.

Key Concept

Power, Work against Friction, and Coefficient of Kinetic Friction

Question 13332Question →

Match each stagecraft term or theatrical convention listed below with its correct functional definition in drama.

Click a left item, then click its matching right item

Show answer & explanation

Answer

Blocking corresponds to the planned movement of actors; Cyclorama corresponds to the curved background curtain used for lighting effects; Offstage Action corresponds to dramatic events occurring out of sight; Stage Property corresponds to physical items handled by actors.

Each technical stagecraft term is accurately matched to its definition: blocking concerns the physical choreography of actors, a cyclorama creates background visual depth via lighting, offstage action provides narrative context for unseen incidents, and stage properties are objects used directly by performers.

Step-by-Step Solution

Identify the definition of actor movement on stage

Blocking is the stagecraft term for physical movement and positioning of actors.

Directors block scenes to ensure clear sightlines, pacing, and dramatic impact.

Identify the stage element associated with lighting and background perspective

Cyclorama is the technical term for the curved background curtain or screen.

It acts as a visual backdrop for projected light to suggest atmospheric outdoor space.

Distinguish between seen and unseen theatrical action

Offstage Action refers to narrative events taking place out of view of the audience.

Playwrights use dialogue or messengers to relay events that cannot be staged directly.

Categorize physical objects manipulated during a performance

Stage Property (Prop) refers to portable items carried or used by actors.

Props aid characterization and drive plot mechanics on stage.

Key Concept

Stagecraft, Technical Theater Terms, and Dramatic Conventions

Estimated Time:1m 0s

Question 13333Question →

A bill of exchange that has been endorsed in blank by the holder becomes payable to bearer and may subsequently be negotiated by mere physical delivery.

True

False

Show answer & explanation

Answer: True

Answer

True

The statement is true because placing an endorsement in blank on a bill of exchange converts it into a bearer instrument, which legally allows title to pass through simple delivery without further signature.

Step-by-Step Solution

Analyze the legal definition of an endorsement in blank on a negotiable credit instrument.

An endorsement in blank occurs when the payee or holder signs the back of the bill of exchange without specifying to whom payment is to be made.

Identifying the structural feature of a blank endorsement is essential to determining its impact on negotiability.

Evaluate the effect of a blank endorsement on the mode of negotiation.

The instrument transitions from order paper to bearer paper, meaning ownership is transferred by delivery alone.

Subsequent holders can negotiate the bill without adding further written signatures or endorsements.

Key Concept

Types of Endorsement and Negotiability of Bills of Exchange

Estimated Time:1m 0s

Question 13334Question →

In an enterprise's computerized business records system, commercial transactions must pass through distinct operations to maintain data integrity and auditability. Arrange the following data processing stages in the correct operational sequence, from initial transaction entry to long-term record preservation.

Drag items to arrange them in the correct order

Show answer & explanation

Answer

The correct sequence for computerized data processing is: (1) Data Collection and Source Document Preparation, (2) Data Input Conversion and Validation, (3) Data Processing and Master File Updating, (4) Output Generation and Report Distribution, and (5) Storage and Archival Retention.

The correct operational sequence follows the standard Electronic Data Processing (EDP) workflow: Input (Data Collection and Validation) → Processing (Master File Updating) → Output (Report Generation) → Storage (Archival Retention). Capturing transaction data on source documents starts the cycle, which is followed by entry and edit validation checks to filter out errors. Validated inputs are then processed against master files, after which reporting outputs are produced, and finally, permanent records and logs are archived for audit compliance.

Step-by-Step Solution

Identify the point of origin for business transaction data.

Recognize that data collection and source document preparation must occur first.

Computer systems cannot process data without initial data capture.

Determine the preparation required prior to computer calculations.

Place input conversion and error validation as the second stage.

Validation checks prevent inaccurate or corrupted data from entering the database (Garbage In, Garbage Out).

Identify the central computation activity.

Position data processing and master file updating third.

Validated transaction entries are applied against master files to calculate updated ledger values.

Locate the stage where processed information is presented to management.

Set output generation and report distribution as the fourth stage.

Outputs depend directly on the completion of the processing phase.

Determine the final stage for audit compliance and security.

Place storage and archival retention as the final stage.

Completed operational records must be backed up to preserve statutory audit trails and ensure disaster recovery.

Key Concept

Electronic Data Processing (EDP) Cycle in Business Records Management

Question 13335Question →

An electric heater rated at $200\text{ W}$ is used to heat a $0.40\text{ kg}$ sample of a pure solid substance maintained at its melting point. If it takes $2\text{ minutes}$ for exactly half of the sample to melt into liquid at the same temperature, what is the specific latent heat of fusion of the substance?

1.2 \times 10^5\text{ J kg}^{-1}

6.0 \times 10^4\text{ J kg}^{-1}

2.0 \times 10^3\text{ J kg}^{-1}

1.2 \times 10^7\text{ J kg}^{-1}

Show answer & explanation

Answer: $1.2 \times 10^5\text{ J kg}^{-1}$

Answer

The specific latent heat of fusion of the substance is

1.2 \times 10^5\text{ J kg}^{-1}

The thermal energy absorbed during melting is

Q = P \times t = 200\text{ W} \times 120\text{ s} = 24,000\text{ J}

. Since only half of the

0.40\text{ kg}

sample melts, the mass undergoing phase change is

0.20\text{ kg}

. Dividing the heat absorbed (

24,000\text{ J}

) by the melted mass (

0.20\text{ kg}

) yields the correct specific latent heat of fusion of

1.2 \times 10^5\text{ J kg}^{-1}

Step-by-Step Solution

Calculate total thermal energy supplied by the heater.

Q = P \times t = 200\text{ W} \times (2 \times 60\text{ s}) = 24,000\text{ J}

Electrical energy supplied is converted completely into thermal energy.

Determine the mass of substance that melted.

m_{\text{melted}} = \frac{1}{2} \times 0.40\text{ kg} = 0.20\text{ kg}

Only half of the total mass undergoes phase change.

Compute the specific latent heat of fusion

L_f

L_f = \frac{Q}{m_{\text{melted}}} = \frac{24,000\text{ J}}{0.20\text{ kg}} = 120,000\text{ J kg}^{-1} = 1.2 \times 10^5\text{ J kg}^{-1}

Phase change occurs at constant temperature using the latent heat equation

Q = m L_f

Key Concept

Latent Heat of Fusion and Energy Balance

Question 13336Question →

A solid metal component of mass $0.6\text{ kg}$ absorbs $5400\text{ J}$ of thermal energy when its temperature increases from $30^\circ\text{C}$ to $75^\circ\text{C}$ . Calculate the heat capacity of the component in $\text{J K}^{-1}$ .

Show answer & explanation

Answer: 120

Answer

The heat capacity of the metal component is

120\text{ J K}^{-1}

Heat capacity (

C

) is calculated by dividing the total thermal energy absorbed (

Q = 5400\text{ J}

) by the resulting temperature change (

\Delta T = 75^\circ\text{C} - 30^\circ\text{C} = 45\text{ K}

). Performing the division yields

C = \frac{5400}{45} = 120\text{ J K}^{-1}

. Note that the mass (

0.6\text{ kg}

) is not included in the denominator because heat capacity refers to the entire object, unlike specific heat capacity.

Step-by-Step Solution

Determine the change in temperature

\Delta T = 75^\circ\text{C} - 30^\circ\text{C} = 45\text{ K}

Heat capacity depends on the temperature difference through which heat energy is absorbed.

Apply the definition of heat capacity

C = \frac{Q}{\Delta T}

Heat capacity (

C

) is defined as the thermal energy required to raise the temperature of the entire body by

1\text{ K}

(or

1^\circ\text{C}

Substitute the given thermal energy and temperature change

C = \frac{5400\text{ J}}{45\text{ K}} = 120\text{ J K}^{-1}

Dividing total energy by total temperature rise gives heat capacity.

Key Concept

Heat capacity (

C

) represents the thermal energy needed to change a body's temperature by one unit (

C = Q / \Delta T

), whereas specific heat capacity (

c

) is heat capacity per unit mass (

c = C / m

Question 13337Question →

Match each industrial strategy or policy instrument on the left with its corresponding primary economic objective on the right.

Click a left item, then click its matching right item

Show answer & explanation

Answer

Import Substitution Industrialization pairs with replacing imported finished consumer goods with domestically manufactured alternatives. Export Promotion Strategy pairs with stimulating domestic manufacturing of goods targeted for international markets. Infant Industry Protection pairs with imposing temporary trade restrictions to shield new firms until they achieve economies of scale. Backward Integration Policy pairs with encouraging manufacturing firms to source and process local primary raw materials.

Each policy matches its precise economic rationale: Import Substitution Industrialization focuses on domestic replacement of consumer imports; Export Promotion Strategy targets external market production; Infant Industry Protection provides temporary shields for growing firms; and Backward Integration mandates domestic raw material sourcing.

Step-by-Step Solution

Analyze the core objective of Import Substitution Industrialization (ISI).

Identify that ISI focuses on producing consumer goods locally to replace foreign imports behind tariff barriers.

ISI aims to conserve foreign exchange by curtailing non-essential consumer imports.

Analyze the core objective of Export Promotion Strategy (EPS).

Identify that EPS aims to manufacture goods specifically for foreign markets using subsidies and competitive trade policies.

EPS targets export expansion to earn foreign exchange and integrate into global value chains.

Analyze the purpose of Infant Industry Protection and Backward Integration.

Match Infant Industry Protection to temporary tariff shields for maturing firms, and Backward Integration to local raw material sourcing.

Infant industry arguments justify short-term protectionism, while backward integration reduces industrial dependence on imported raw materials.

Key Concept

Industrialization Strategies and Manufacturing Policies

Question 13338Question →

A planet has a mass equal to $8$ times the mass of the Earth and a radius equal to $2$ times the radius of the Earth. If the acceleration due to gravity on the surface of the Earth is $10\text{ m/s}^2$ , what is the acceleration due to gravity on the surface of the planet in $\text{m/s}^2$ ?

Show answer & explanation

Answer: 20

Answer

The acceleration due to gravity on the surface of the planet is

20\text{ m/s}^2

The acceleration due to gravity at the surface of a spherical body is given by

g = \frac{GM}{R^2}

. When the mass is multiplied by

8

and the radius is multiplied by

2

, the new acceleration becomes

g_p = \frac{G(8M)}{(2R)^2} = \frac{8}{4}\frac{GM}{R^2} = 2g

. Substituting

g = 10\text{ m/s}^2

gives

20\text{ m/s}^2

Step-by-Step Solution

Write the expression for acceleration due to gravity at the surface of Earth.

g_e = \frac{GM_e}{R_e^2} = 10\text{ m/s}^2

Gravitational field strength at the surface depends directly on body mass and inversely on the square of radius.

Set up the ratio equation for the planet's gravitational acceleration using relative mass and radius values.

g_p = \frac{G(8M_e)}{(2R_e)^2} = \frac{8}{4} \left(\frac{GM_e}{R_e^2}\right) = 2g_e

Squaring the radius multiplier of

2

yields

4

in the denominator, while the numerator increases by a factor of

8

Calculate the final numeric value.

g_p = 2 \times 10\text{ m/s}^2 = 20\text{ m/s}^2

Multiplying Earth's value by the combined ratio of

2

gives the answer.

Key Concept

Gravitational field strength on planetary surfaces (

g = \frac{GM}{R^2}

)

Question 13339Question →

During a period of severe inflation, the Central Bank of Nigeria seeks to curb general money supply and commercial bank credit expansion while concurrently guaranteeing that commercial banks channel funding to the agricultural sector. Which pair of monetary policy tools should the central bank deploy to achieve these dual objectives?

Selling Treasury bills through Open Market Operations and imposing selective credit quotas in favor of agriculture

Lowering the Cash Reserve Ratio and applying moral suasion to persuade commercial banks to restrict loans

Reducing the bank rate and selling government securities on the open market

Establishing special margin requirements on commercial loans and issuing moral suasion guidelines only

Show answer & explanation

Answer: Selling Treasury bills through Open Market Operations and imposing selective credit quotas in favor of agriculture

Answer

The central bank should sell Treasury bills through Open Market Operations to absorb bank reserves, and impose selective credit quotas to direct lending toward agriculture.

To combat inflation while supporting a targeted economic sector, a central bank must combine a contractionary quantitative tool with a selective credit control tool. Selling Treasury bills in Open Market Operations absorbs cash reserves from commercial banks, curbing general money creation. Concurrently, sectoral credit quotas serve as a selective (qualitative) tool that mandates commercial banks to allocate a specific percentage of their loan portfolios to agriculture.

Step-by-Step Solution

Analyze the primary objective of reducing overall money supply during inflation.

Identify that a contractionary quantitative monetary instrument is required to absorb liquidity from commercial banks.

Quantitative controls alter total bank reserves across the economy. Selling government securities via Open Market Operations (OMO) directly drains commercial bank reserves, curtailing general credit creation.

Analyze the secondary objective of directing credit specifically to the agricultural sector.

Identify that a qualitative or selective monetary policy tool is required.

Selective instruments (like sectoral credit directives or quotas) do not target total money volume but control the distribution and allocation of credit to preferred sectors.

Synthesize the two policy mechanisms to select the correct policy mix.

Pairing OMO security sales (quantitative reduction of money supply) with selective credit quotas (qualitative allocation of funds to agriculture) fulfills both macroeconomic aims.

This combination simultaneously reduces overall inflationary pressures while protecting strategic real-sector production.

Key Concept

Distinction between Quantitative and Selective Monetary Policy Instruments

Estimated Time:2m 0s

Question 13340Question →

Prior to the establishment of modern central banking and standardized paper currency in Nigeria, pre-colonial commercial transactions relied heavily on commodity monies such as cowrie shells, manillas, and brass rods. Which of the following best explains the primary economic limitation associated with using these commodity currencies for long-distance commerce?

Their high bulkiness and weight relative to value, which imposed severe transportation and transaction costs on long-distance trade

Their complete inability to facilitate local retail trade, which restricted commercial activity exclusively to international commodity barter

Their legal restriction strictly to compensating personal direct service providers, which prevented their application in physical goods exchange

Their exclusive alignment with secondary manufacturing industries, which prevented agricultural producers from using them in trade

Show answer & explanation

Answer: Their high bulkiness and weight relative to value, which imposed severe transportation and transaction costs on long-distance trade

Answer

Their high bulkiness and weight relative to value, which imposed severe transportation and transaction costs on long-distance trade

The correct answer highlights that commodity currencies like cowrie shells and manillas had low value-to-weight ratios. Accumulating enough currency for substantial commercial purchases required transporting enormous bulk, incurring heavy transaction costs and logistical hurdles during long-distance trade, which eventually led to the adoption of coin and paper money.

Step-by-Step Solution

Analyze the nature of commodity currencies in historical Nigerian commerce

Items like cowrie shells and manillas served as recognized units of account and mediums of exchange.

Understanding pre-colonial payment instruments is key to evaluating commercial development.

Identify the key economic drawback of commodity money in expanded commercial operations

Large transactions required thousands of shells or heavy metal rods, making transport difficult, costly, and insecure over long distances.

Portability is a essential characteristic of efficient money; lack of portability hinders scale and long-distance trade expansion.

Key Concept

Limitations of pre-colonial commodity currency in commercial evolution

Estimated Time:1m 0s

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