Tüm alıştırma soruları

In the underground galleries of Chavín de Huántar in Peru, acoustic archaeologists discovered that stone corridors were carefully designed to exaggerate the low-frequency sounds produced by shell trumpets. Rather than letting sound waves dissipate, the narrow stone architecture concentrated acoustic energy to produce a disorienting resonance during ancient ceremonies.

Which choice best maintains the scientific clarity and precision of the passage?

Translators working on deciphering ancient Elamite script face significant obstacles, as surviving inscriptions are scarce and highly fragmented. Recent advancements in computational linguistics have allowed researchers to analyze contextual symbol patterns faster than ever before, consequently, several previously untranslatable tablets have finally been decoded. Additional funding will support further cross-disciplinary digital analysis.

Which of the following choices produces a grammatically correct sentence?

Read the following passage about ancient Maya architecture. Fill in the blank with the correct form of the verb in parentheses so that the paragraph maintains consistent verb tense.

Read the sentence below:

"The lead architectural supervisor insisted that all contractors working on the historical restoration project must strictly comply to the revised structural safety regulations established by the city council."

Which of the following choices best replaces the underlined portion to make the sentence idiomatically and grammatically correct?

If $a$ and $b$ are nonzero integers such that $|a| < |b|$ and $a \cdot b < 0$, which of the following expressions must have the greatest value?

A team of biomechanical engineers investigated how stride frequency influences peak knee joint contact force during treadmill running. Ten distance runners completed four trials on an instrumented treadmill at a constant running velocity of $4.0\text{ m/s}$ while wearing identical running shoes. Across trials, stride frequency was set to $150$, $160$, $170$, or $180\text{ steps/min}$ using a rhythmic auditory metronome. Sensors in the treadmill measured the peak knee joint contact force in body weights ($\text{BW}$) during each stance phase. Which of the following identifies the dependent variable in this experiment?

Biomechanical engineers investigated how the initial knee flexion angle affects the peak vertical ground reaction force generated by athletes during a countermovement jump on a stationary force plate. In the experiment, athletes performed jumps starting from pre-determined knee flexion angles (30°, 45°, 60°, and 75°), while force plate sensors continuously recorded the maximum force exerted against the platform during takeoff. All trials were conducted using the same athlete cohort wearing identical athletic footwear under standardized indoor temperature and humidity conditions. Based on this experimental design, match each experimental component to its corresponding variable classification.

A drone is positioned in the sky above a flat field between two ground observation stations, Station $A$ and Station $B$, which are $500$ meters apart. From Station $A$, the angle of elevation to the drone is $40^\circ$. From Station $B$, looking back toward the drone, the angle of elevation is $65^\circ$. Assuming the drone and both observation stations lie in the same vertical plane, which of the following expressions represents the direct distance, in meters, from Station $A$ to the drone?

Read the excerpt below and fill in the blank with the single, most precise word that maintains the formal, scientific tone of the passage.

Experiment 1

A student constructs an electrolytic cell apparatus to measure the rate of copper electroplating. As shown in the setup, a nickel cathode strip is submerged in an aqueous $1.0\text{ M } \text{CuSO}_4$ solution alongside a copper anode. Both electrodes are connected to a DC power supply and an ammeter. Before turning on the power supply, the student thoroughly washes the nickel cathode with distilled water and acetone, allows it to dry completely, and measures its mass on an analytical balance.

What is the primary procedural purpose of drying the nickel cathode completely before recording its initial mass?

While surveying the urban forest, the ecologist recorded the growth of resilient, towering oak trees, compiled detailed notes on local wildlife, and submitted her findings to the municipal planning board. Which choice best maintains standard written English conventions for the underlined portion?

On a standard number line, point $R$ has coordinate $-18$ and point $T$ has coordinate $22$. Point $S$ lies on the line segment $RT$ such that the distance from $R$ to $S$ is $\frac{3}{5}$ of the distance from $R$ to $T$. What is the coordinate of point $S$?

Read the sentence below and answer the question that follows.

Although the lead paleontologist had spent decades studying avian evolution, she remained oddly averse with accepting the newly discovered fossil as a direct link between theropods and modern birds.

Which of the following choices produces a grammatically and idiomatically correct sentence?

A team of biogeochemists investigated anaerobic oxidation of methane by marine sediment microbes under simulated deep-sea temperature conditions ($4^\circ\text{C}$). Four distinct reactor setups were prepared containing equal masses of marine sediment and methane gas, but with varying additions of electron acceptors, heat sterilization, and hydrostatic pressures.

Match each experimental setup to its corresponding role or baseline function in the experiment.

Geologists studying the 1815 eruption of Mount Tambora have analyzed volcanic ash preserved deep within polar ice cores. These microscopic particles provide a precise chronological record of atmospheric sulfur concentration, however, trace element signatures also reveal the exact global temperature shifts that followed the cataclysmic event.

Which choice best corrects the punctuation error in the underlined portion?

Read the sentence below:

During their study of ancient acoustic chamber design, sound engineers determined that the resonance frequencies of the stone halls were commensurate to the structural dimensions of the instruments stored within.

Which choice best completes the sentence according to the conventions of standard written English?

Pioneering ethnomusicologist Frances Densmore recorded thousands of Native American songs on wax cylinders in the early twentieth century. Currently at this present time, these fragile audio recordings are preserved in digital archives, allowing researchers to study rare musical traditions without damaging the original artifacts.

Which of the following choices best replaces the underlined portion in the sentence to eliminate redundancy while maintaining proper grammatical structure?

Read the sentence below and answer the question that follows.

Under the terms of the updated institutional protocol, external audit teams are strictly precluded with accessing confidential participant data without prior clearance from the ethics board.

Which choice provides the idiomatically correct preposition to complete the sentence?

Read the passage below.

In recent years, urban ecologists have been studying nocturnal bird migration through metropolitan corridors using specialized rooftop sensors. Whenever migrating flocks pass overhead, these sensitive devices recorded their vocalizations to analyze flight patterns. By evaluating the frequency of calls collected during peak seasons, researchers hope to propose safer building lighting policies.

Which choice best maintains a consistent verb tense throughout the paragraph?

A community solar farm distributes electrical energy to three types of facilities: residential homes, small businesses, and municipal buildings. The ratio of energy distributed to residential homes to energy distributed to small businesses is $5:3$. The ratio of energy distributed to small businesses to energy distributed to municipal buildings is $4:1$. If the municipal buildings receive a total of $45$ megawatt-hours (MWh) of energy, what is the total amount of energy, in megawatt-hours, distributed by the solar farm?