Examkin

Paraphrased Fact Recognition

63 soru

Tüm türler63Çoktan seçmeli33Doğru / Yanlış17Eşleştirme13
Soru 61Soru →

In heavy industrial cooling systems, centrifugal pumps frequently employ braided mechanical packing within the stuffing box to control shaft leakage. Rather than establishing a completely watertight barrier, the packing gland must remain slightly loose to permit a continuous trickle of process liquid along the rotating shaft. This deliberate weeping acts as both a lubricant and a coolant, preventing severe frictional overheating and premature sleeve scoring. If an operator over-tightens the gland follower to eliminate all visible leakage, the resulting lack of fluid circulation rapidly chars the packing fibers and damages the pump shaft.

According to the passage, why must mechanical packing allow a slight amount of liquid to escape?

Cevabı ve açıklamayı göster

Cevap: To reduce friction and keep the pump shaft from suffering heat damage

Cevap

The mechanical packing must allow a slight fluid escape to reduce friction and keep the pump shaft from suffering heat damage.
The passage explicitly explains that the controlled leaking of process liquid serves as a lubricant and coolant, which prevents overheating and shaft scoring. The correct option restates these facts accurately using different phrasing ('reduce friction and keep the pump shaft from suffering heat damage').

Adım Adım Çözüm

1
Locate the portion of the passage explaining the purpose of fluid leakage.
Identified the sentence stating that 'deliberate weeping acts as both a lubricant and a coolant, preventing severe frictional overheating and premature sleeve scoring.'
Direct retrieval of the factual basis is required before matching paraphrased meanings.
2
Translate the explicit details into synonymous expressions.
'Acts as both a lubricant and a coolant' equates to reducing friction and cooling, while 'preventing severe frictional overheating' translates to protecting the shaft from heat damage.
The correct response restates the core meaning without copying verbatim phrasing.
3
Evaluate the choices and eliminate distractors based on contradictions, inversions, and unmentioned details.
The option describing friction reduction and heat protection perfectly captures the factual detail without altering the meaning.
Ensures that verbatim traps and causal distortions are rejected.

Anahtar Kavram

Paraphrased Fact Recognition
Tahmini Süre:1m 0s
Soru 62Soru →

Read the following passage:

Glycol-based automotive brake fluids are inherently hygroscopic, meaning they steadily absorb moisture from atmospheric humidity through microscopic pores in flexible rubber hoses and reservoir seals. Over time, accumulated water substantially lowers the fluid's boiling temperature. Under sustained braking, intense frictional heat migrates from the brake calipers into the hydraulic lines. If degraded fluid exceeds its reduced boiling threshold, the dissolved water vaporizes into compressible gas pockets. This condition, known as vapor lock, prevents hydraulic pressure from acting on the friction pads, leading to a sudden failure of braking effectiveness.

According to the passage, the infiltration of atmospheric moisture into brake fluid decreases the temperature required for the liquid to transform into gas.

Cevabı ve açıklamayı göster

Cevap: True

Cevap

True. The passage confirms that moisture contamination lowers the boiling point, meaning the liquid converts into gas at a reduced temperature.
The statement is true because it accurately rephrases the passage's explanation that water absorption lowers the boiling threshold of the hydraulic fluid, causing it to turn into vapor at lower temperatures.

Adım Adım Çözüm

1
Locate the specific detail regarding moisture absorption and its thermal consequence in the passage.
Identified the sentence: 'Over time, accumulated water substantially lowers the fluid's boiling temperature.'
To verify the exact factual relationship stated by the author.
2
Analyze whether the statement's phrasing matches the textual meaning through synonym mapping.
'Infiltration of atmospheric moisture' corresponds to absorbing water from humidity, and 'decreases the temperature required for the liquid to transform into gas' corresponds to lowering the boiling temperature.
To ensure that semantic meaning is fully preserved despite the syntactic restructuring.
3
Determine the validity of the statement based strictly on the text.
The statement is an accurate paraphrase of a stated fact, confirming the answer is True.
To establish the correct evaluation.

Anahtar Kavram

Paraphrased Fact Recognition
Tahmini Süre:1m 0s
Soru 63Soru →

To safeguard steel vessel hulls against galvanic corrosion in saltwater environments, marine technicians mount sacrificial zinc anodes along the submerged plating. Because zinc possesses a lower electrochemical potential than structural steel, the seawater electrolyte causes the zinc to oxidize and dissolve preferentially. This chemical sacrifice supplies electrons to the hull, maintaining the steel as a protected cathode. For optimal defense, technicians must ensure direct, bare metal-to-metal contact between the anode and the vessel. Applying marine antifouling paint over the zinc insulates its surface, halting the protective electrical current and leaving the nearby steel susceptible to aggressive structural pitting.

Based on the passage, what is the consequence of applying antifouling paint over a sacrificial zinc anode?

Cevabı ve açıklamayı göster

Cevap: It creates an insulating barrier that interrupts the protective electrical current, exposing the adjacent metal to destructive pitting.

Cevap

It creates an insulating barrier that interrupts the protective electrical current, exposing the adjacent metal to destructive pitting.
The correct response accurately restates the factual consequence mentioned in the final sentence of the passage. The text explains that painting the zinc anode insulates its surface, stops the protective current from flowing, and leaves the steel prone to pitting. The correct option expresses this exact sequence of facts using synonyms ('insulating barrier', 'interrupts', 'adjacent metal', 'destructive pitting') without copying verbatim phrases.

Adım Adım Çözüm

1
Locate the specific target fact regarding antifouling paint in the paragraph.
Identified the statement: 'Applying marine antifouling paint over the zinc insulates its surface, halting the protective electrical current and leaving the nearby steel susceptible to aggressive structural pitting.'
The question asks directly for the specific outcome when paint is applied over the zinc anode.
2
Map key concepts from the passage to accurate synonymous equivalents.
'Insulates its surface' maps to 'creates an insulating barrier', 'halting the protective electrical current' maps to 'interrupts the protective electrical current', and 'leaving the nearby steel susceptible to aggressive structural pitting' maps to 'exposing the adjacent metal to destructive pitting.'
Recognizing accurate paraphrasing requires identifying equivalent semantic meaning rather than relying on exact word-for-word repetition.
3
Filter out distractors that invert causality, use verbatim traps, or rely on outside knowledge.
Eliminated options using exact phrasing out of context, reversing the effect on electron flow, or assuming unstated environmental impacts.
Standard assessment reading comprehension items often test the ability to separate genuine paraphrased facts from superficial verbatim traps.

Anahtar Kavram

Paraphrased Fact Recognition
Tahmini Süre:1m 0s
ÖncekiSayfa 4 / 4
Paraphrased Fact Recognition Alıştırma Soruları — Armed Services Vocational Aptitude Battery (ASVAB) — Sayfa 4 | Examkin