what statement about jetlag can be inferred from the passage on daylight savings time

HESI A2

HESI A2 Reading Comprehension Practice Test

1. What statement about jetlag can be inferred from the passage on Daylight Savings Time?

A. Jetlag is caused by flying at high speeds.
B. Jetlag is caused by moving between time zones.
C. Jetlag is unrelated to time zone changes.
D. Jetlag is a myth.

Correct answer: B

Rationale: The correct answer is B: 'Jetlag is caused by moving between time zones.' The passage explains that jetlag occurs when moving suddenly from one time zone to another, such as when flying from Asia to North America. This disrupts the body's internal clock, leading to symptoms like tiredness and sleep disturbances. Choice A is incorrect as jetlag is not attributed to high-speed travel but to time zone changes. Choice C is incorrect as the passage clearly links jetlag to changes in time zones. Choice D is incorrect as jetlag is a real phenomenon experienced by individuals who travel across different time zones.

2. What does Vacuous mean?

A. Empty
B. Full
C. Dense
D. Bright

Correct answer: A

Rationale: The correct answer is A: 'Empty.' Vacuous means lacking intelligence, empty-headed, or devoid of substance. Choice B, 'Full,' is incorrect as it is the opposite of vacuous. Choice C, 'Dense,' means closely compacted or stupid, not vacuous. Choice D, 'Bright,' means giving out or reflecting a lot of light, not vacuous.

3. Which property of a substance does not change with a change in temperature?

A. Mass
B. Volume
C. Phase
D. Solubility

Correct answer: A

Rationale: Mass is an intrinsic property of a substance that remains constant regardless of temperature changes. It is a measure of the amount of matter in an object, and this quantity does not vary with temperature or the environment in which the substance is located. The conservation of mass in chemistry dictates that mass is neither created nor destroyed, making it independent of temperature variations.\nVolume, on the other hand, changes with temperature due to thermal expansion or contraction. Phase can change with temperature, leading to transitions between solid, liquid, and gas states. Solubility is affected by temperature changes as it influences the ability of a substance to dissolve in a solvent.

4. Select the meaning of the word 'untoward' in the sentence: 'His untoward actions during the admission process created a problem for the nurse.'

A. Violent
B. Casual
C. Unseemly
D. Capricious

Correct answer: C

Rationale: The correct answer is C: 'Unseemly.' In this context, 'untoward' refers to actions that are improper or inappropriate. Choice A, 'Violent,' does not accurately reflect the meaning of 'untoward' in the context of the sentence. Choice B, 'Casual,' is unrelated to the negative connotation of 'untoward.' Choice D, 'Capricious,' suggests unpredictability rather than the negative behavior implied by 'untoward.' Therefore, 'Unseemly' is the most appropriate meaning in this context.

5. How many liters are in 5000 milliliters?

A. 5 liters
B. 4 liters
C. 6 liters
D. 5.5 liters

Correct answer: A

Rationale: To convert milliliters to liters, you divide by 1000 since 1000 milliliters make up 1 liter. In this case, 5000 milliliters divided by 1000 milliliters per liter equals 5 liters (5000 mL ÷ 1000 mL/L = 5 L). Therefore, the correct answer is A: 5 liters. Choice B, 4 liters, is incorrect because 5000 milliliters is equivalent to 5 liters, not 4. Choice C, 6 liters, is incorrect as it is not the accurate conversion from milliliters to liters in this case. Choice D, 5.5 liters, is incorrect as it does not reflect the correct conversion of 5000 milliliters to liters, which is 5 liters.