Tüm alıştırma soruları

A technician is cutting copper wire for electrical installations. Each installation requires $45$ centimeters of wire. How many meters of wire are needed to complete $20$ installations?

Read each technical excerpt regarding military equipment maintenance and field operations. Match each passage to the statement that expresses its explicitly stated main idea.

Read the passage detailing the morphology of advanced vocabulary words and fill in the blanks with the correct fundamental meaning for each Latin root.

Mangrove forests serve as critical natural barriers along tropical coastlines. Their dense, tangled root systems dissipate wave energy during severe storms, significantly reducing coastal erosion and shielding inland communities from hurricane damage. In addition to physical defense, these intertidal zones act as productive nurseries for juvenile fish, providing shelter from open-water predators. Furthermore, the specialized mud beneath mangroves traps heavy sediments and organic carbon, preventing sediment runoff from degrading offshore coral reefs. Despite covering a small fraction of the Earth's shoreline, these resilient ecosystems maintain coastal stability and foster marine biodiversity.

Which of the following is the most suitable title for this passage?

Based on the synonym context clue provided in the sentence below, which word correctly completes the blank?

During World War I, merchant and naval ships faced devastating losses from German U-boats, whose torpedo attacks relied on visual calculations of target speed and heading. Rather than attempting to hide vessels against the shifting backdrop of the open sea—an impossible task—naval artist Norman Wilkinson developed "dazzle camouflage." This technique covered ship hulls in contrasting geometric patterns, bold stripes, and irregular color blocks. Instead of concealing the vessel, these disruptive optical illusions distorted its perceived orientation and velocity, confusing enemy rangefinders. By disrupting the submarine commander's trajectory calculations, dazzle paint significantly reduced the accuracy of torpedo strikes without making the ship invisible.

Which of the following is the most suitable title for this passage?

Match each multi-affix derivative word on the left with its underlying core base word on the right by identifying and stripping away all prefixes and suffixes.

Passage:
During scheduled depot-level maintenance, aviation technicians frequently inspect critical airframe joints for microscopic fatigue damage using specialized electromagnetic probes. By passing an energized coil over aluminum skin panels, the instrument induces circular electrical currents that experience measurable resistance changes whenever a subsurface flaw is encountered. Because it reliably identifies minute defects without damaging components or requiring disassembly, eddy-current testing has become an essential non-destructive inspection method for military aircraft.

According to the passage, which of the following best expresses the main idea?

Complete the sentence below by adding the appropriate adjective suffix to the base word in the first set of parentheses and the appropriate noun suffix to the base word in the second set of parentheses. Which derived words correctly complete the sentence?

Passage:
Impressed Current Cathodic Protection (ICCP) systems prevent seawater corrosion on naval ship hulls by continuously discharging a controlled direct electrical current that neutralizes electrochemical degradation. While sacrificial zinc anodes dissolve passively over time and require frequent drydock replacement, ICCP systems utilize inert mixed-metal oxide anodes energized by onboard power units. Computerized controllers monitor underwater reference electrodes to adjust voltage outputs dynamically, compensating for changes in water salinity, temperature, and vessel speed. By maintaining the hull at a constant negative electrochemical potential, the ICCP system delivers reliable, long-term corrosion defense across varying operational environments.

Statement: The explicitly stated main idea of the passage is that Impressed Current Cathodic Protection systems protect ship hulls from seawater corrosion by supplying a controlled electrical current that counteracts electrochemical degradation.

In the sentence, 'The team demonstrated exceptional resilience during the crisis,' what is the grammatical function and meaning imparted by the suffix in the bolded word?

Read the sentence below and provide the precise English vocabulary word derived from the mentioned Greek roots to fill in the blank.

Understanding the foundational roots of English vocabulary provides insight into word definitions. Which definition correctly corresponds to each root-derived term below?

A maintenance crew is installing a new rectangular cooling fluid reservoir for an industrial generator. The interior of the reservoir measures $4$ feet long, $3$ feet wide, and $18$ inches deep. If the crew fills the empty reservoir at a constant rate of $1.5$ cubic feet per minute, how many minutes will it take to fill the reservoir completely?

The engineer proposed a novel design to reduce heat buildup in the aircraft engine. What is the meaning of the underlined word in this sentence?

Before operating an industrial milling machine, technicians must inspect the emergency shutoff mechanism to confirm it responds immediately. Regular lubrication of the spindle prevents friction buildup that could warp metal components during high-speed cutting. If abnormal vibration occurs during a run, operators are instructed to halt the equipment at once rather than completing the cycle. Adhering to these protocols significantly decreases the risk of mechanical breakdowns and ensures operator safety.

According to the passage, what protects metal components from becoming distorted during high-speed cutting?

Dendrochronology is the scientific method of dating environmental events and archaeological artifacts by analyzing growth rings in trees. Each year, a tree adds a single layer of wood beneath its bark, with the thickness of the ring reflecting the climate and moisture conditions of that growing season. By comparing overlapping patterns of rings from living trees to preserved ancient timbers, researchers can build a continuous chronological record spanning thousands of years. This allows scientists to determine the exact year a historic wooden structure was built or when severe droughts struck a region.

Which of the following is the best title for this passage?

Early submarine designers prioritized hydrodynamic hull contours to maximize submerged speed, yet acoustic sensors easily detected vessels even at modest throttle. Engineers then coated external bulkheads with elastomeric tiles to absorb outgoing engine vibrations, but internal mechanical hums continued to register on hydrophones. Subsequent overhauls isolated propulsion machinery on suspended rubber mounts and redesigned drive shafts with flexible couplings. Only after technicians simultaneously addressed hull resonance, structural mounting, and hydrodynamic turbulence did acoustic detection ranges decline significantly.

The passage as a whole primarily suggests that:

What verb formed with a suffix correctly completes the sentence below to mean 'to make wider'?

Modern military aircraft engines rely on thermal barrier coatings (TBCs) to enhance overall turbine performance and component longevity by insulating metal substrates from extreme operating temperatures. In high-pressure turbine sections, combustion gases routinely exceed the melting point of superalloy blades. A micro-porous ceramic topcoat, bonded via a metallic interlayer, provides an effective thermal gradient that reduces base metal temperatures by up to 200°C. Although cyclic thermal stress and bond coat oxidation eventually degrade these layers over extended flight hours, the primary role of thermal barrier coatings is to enable higher operational temperatures while preserving the structural integrity of critical engine components.

According to the passage, which statement expresses the main idea?