Tüm alıştırma soruları

During high-volume logistics operations, distribution centers must carefully stage outbound shipments. Rather than loading cargo immediately onto delivery trucks, workers systematically group items by destination zip code, arrange heavy pallets in designated dock lanes, and align fragile parcels near inspection bays. This preliminary positioning ensures that freight is loaded in the exact reverse order of drop-offs, preventing transit delays and handling damage.

As used in the passage, the word "stage" most nearly means

Passage:
In archive preservation, conservators humidify stiff, centuries-old parchment documents in sealed chambers using humidified vapor rather than wetting them directly with liquid water. Liquid water causes rapid, uneven swelling in the surface collagen fibers, which exerts mechanical stress on adjacent dry fibers and causes micro-tears across the delicate skin matrix. By contrast, gradual exposure to water vapor permits moisture to disperse uniformly throughout the protein structure, gently relaxing the skin without inducing localized stress.

Statement: Based on the passage, the primary danger of applying liquid water to dry parchment is the uneven physical tension created when fibers expand at different rates.

Naval reverse osmosis (RO) desalination plants force pressurized seawater through semipermeable polyamide membranes to produce potable water. Pre-treatment filters trap coarse silt and organic particulates to prevent premature membrane fouling, while anti-scalant chemicals are metered in to inhibit mineral precipitation. Operating at high pressure causes membrane compaction over time, gradually reducing pure water permeate flux even when feed salinity remains constant. If pre-filter differential pressure rises sharply, technicians must backwash the coarse filters immediately to avoid starving the high-pressure pump, which relies on positive intake pressure to prevent internal cavitation.

Based on the passage above, match each inference about the desalination system to its correct evidentiary status.

Solar-powered weather buoys deployed in polar waters rely on internal thermal heaters to prevent delicate water salinity sensors from icing over. During winter months, daylight drops to near zero, forcing the buoys to run exclusively on stored battery power. To conserve energy, the buoy’s automated control unit shuts down non-essential components like transmission beacons whenever battery reserves fall below twenty percent, while keeping thermal heaters active as long as power remains.

Based on the passage, what can be logically concluded about a polar weather buoy operating at fifteen percent battery reserve?

Read the following passage:

Commercial and military aircraft tires are inflated almost exclusively with dry nitrogen gas rather than standard compressed ambient air. Unlike ambient air, which contains significant water vapor and oxygen, pure nitrogen maintains a stable pressure under extreme temperature swings experienced during high-altitude flight and high-speed landings. Furthermore, nitrogen prevents oxidation of the inner rubber lining and eliminates the risk of internal tire combustion caused by intense braking heat. Standard air compressors are strictly prohibited for primary aircraft tire servicing.

Statement: The author wrote this passage primarily to explain why aviation maintenance standards mandate the use of nitrogen over ambient air for tire inflation.

Read the following passage:

When changing a vehicle's tire, many drivers simply tighten the lug nuts as firmly as possible using a standard lug wrench. However, applying uneven or excessive force can stretch the wheel studs, strip threads, or cause brake rotors to warp over time. Using a calibrated torque wrench ensures that each fastener is tightened to the exact specification recommended by the manufacturer. This simple practice distributes clamping pressure evenly across the wheel assembly, extending component life and ensuring safe operation.

What is the author's primary purpose in writing this passage?

Before deploying overseas, the logistics team inspected all storage containers to verify cargo safety. The sergeant discovered that several older crates were constructed with substandard materials that could not withstand heavy pressure. He immediately ordered the crew to replace the defective crates with reinforced steel units.

Based on the passage and its word parts, what is the meaning of the word "substandard"?

Read the following passage carefully:

"Geothermal heat pumps utilize the earth's stable subterranean temperature to provide energy-efficient heating and cooling for residential buildings. While surface air temperatures fluctuate drastically across seasons, the ground several feet below the surface remains at a consistent 50 to 60 degrees Fahrenheit year-round. A closed underground loop filled with fluid transfers heat from the earth into the home during winter and reverses the process in summer. Although installing the subsurface pipe network requires substantial initial excavation and specialized drilling equipment, the system drastically lowers long-term electricity consumption."

Match each excerpt from the passage to its correct structural function within the text.

Read the sentences below. Fill in the blanks with the single multiple-meaning word that logically completes both sentences based on the context. Which word correctly fills both blanks?

A groundskeeping crew is preparing a specialized liquid fertilizer. The instructions state to mix $4$ fluid ounces of the concentrated fertilizer for every $3$ quarts of water. If the crew uses $12$ gallons of water, how many cups of concentrated fertilizer must they add?

Passage:
Naval sonar operators deploy temperature probes to chart ocean gradients before beginning acoustic tracking missions. In deep water, a sharp temperature decline between the warm surface layer and cold depths refracts sonar pulses downward. This downward deflection creates an acoustic shadow zone near the surface where sound waves cannot travel horizontally to return echoes. Consequently, submarine crews monitoring surface traffic routinely position their vessels beneath this thermal boundary during active patrol operations.

What does the passage imply about why submarines operate beneath the thermal boundary?

Modern naval vessels utilize electrolytic oxygen generators to produce breathable air from deionized feedwater during prolonged submergence. While the electrolysis process cleanly separates water into hydrogen and oxygen gases, the generated hydrogen poses a severe combustion hazard if allowed to accumulate. To prevent explosive concentrations, the system continuously vents separated hydrogen overboard through high-pressure discharge lines, while routing the oxygen through catalytic scrubbers into the ship's internal atmosphere. If the external discharge manifold experiences backpressure or blockage, automatic fail-safe sensors immediately halt electrolysis before hydrogen levels in the generating cell can rise.

Which of the following conclusions is most logically supported by the passage?

Passage:
Deep-sea autonomous gliders adjust buoyancy rather than using motorized propellers to navigate through the water column. To descend, an internal pump transfers hydraulic fluid from a flexible external bladder into a rigid internal reservoir, reducing displacement and increasing overall vehicle density. To ascend, the pump forces the fluid back into the external bladder, expanding the vehicle's volume and decreasing density.

Based on the passage, if the hydraulic pump loses power while the fluid is fully contained within the internal reservoir, the glider will be unable to ascend to the surface on its own.

Before installing protective rubber seals on the fuel conduit, mechanics must confirm that the material is pliable—meaning flexible and easily bent—to ensure a tight seal around curved joints. Rigid tubing can crack under engine vibration, whereas flexible components adapt safely to structural movement during vehicle operation.

Based on the context clues in the passage, what is the meaning of the word "pliable"?

During scheduled maintenance of runway arresting gear systems, technicians must inspect the synthetic nylon purchase tape for structural wear and environmental degradation. The purchase tape must be removed from service immediately if the thickness drops below 0.28 inches or if edge fraying exceeds 0.5 inches. Furthermore, tape segments located within 15 feet of the runway centerline require ultrasonic integrity testing every 90 days due to friction and heat from landing aircraft tires.

According to the passage, which condition requires technicians to remove the purchase tape from service immediately?

During deep-sea submersible maintenance, technicians must address any deleterious—that is, harmful and degrading—effects of electrolytic corrosion. Furthermore, operators must apply a viscous, or thick and sticky, sealant across all primary bulkhead joints to maintain structural integrity. Finally, inspectors should discard any superfluous replacement parts, removing all unnecessary surplus items from the work compartment to prevent hazardous loose debris.

Based on the passage, match each target vocabulary term on the left with the synonymous context clue on the right that directly clarifies its meaning.

Read the passage and evaluate the statement below.

An aircraft pitot-static system measures air pressure to operate three primary flight instruments: the airspeed indicator, the altimeter, and the vertical speed indicator. Forward motion forces ambient air into the pitot tube, generating ram air pressure. To prevent icing at high altitudes, the pitot tube contains an internal electric heating element. Flush-mounted static ports located on the aircraft fuselage measure undisturbed atmospheric pressure. The airspeed indicator requires differential input from both the pitot tube and the static ports to determine velocity. In contrast, the altimeter and vertical speed indicator connect exclusively to the static ports and do not utilize ram air pressure. Pre-flight inspections require personnel to verify that moisture drain openings in the lines remain unobstructed.

Based on the passage, the vertical speed indicator relies on both ram air from the pitot tube and atmospheric pressure from the static ports.

Read the following technical safety procedure. Based on the cause-and-effect relationships described, what word correctly completes the logical conclusion?

Read the following passage:

Buried steel pipelines are constantly vulnerable to electrochemical corrosion caused by moisture and electrolytes in the surrounding soil. To prevent structural failure and hazardous leaks, pipeline operators rely primarily on sacrificial anode cathodic protection. In this system, more reactive metals like magnesium or zinc are electrically bonded to the steel pipe. Because these auxiliary metals have a more negative electrochemical potential, they corrode in place of the steel, sacrificing themselves to preserve the pipeline's integrity. Routine electrical potential monitoring ensures these sacrificial anodes are replaced before they are completely depleted. Through this electrochemical diversion, operators extend the service life of vital underground infrastructure.

Which of the following best expresses the main idea of the passage?