what can stop the penetration of gamma radiation
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HESI A2

Chemistry HESI A2 Quizlet

1. What can stop the penetration of gamma radiation?

Correct answer: C

Rationale: Gamma radiation is highly penetrative and requires dense materials to block it effectively. While aluminum foil and glass are not sufficient to stop gamma radiation, several feet of concrete is needed due to its high density and ability to absorb gamma radiation effectively. A piece of paper is too thin and lacks the density required to block gamma radiation, making it an ineffective shield.

2. Select the meaning of the word 'corpulence' in the sentence: 'The patient’s corpulence made him difficult to handle.'

Correct answer: D

Rationale: The correct answer is D: 'Stoutness.' The word 'corpulence' refers to the state of being excessively fat or overweight, indicating the patient's stoutness or large size due to excess body weight. Choice A, 'Belligerence,' is incorrect as it means aggressive or hostile behavior, which does not fit the context of the sentence. Choice B, 'Gassiness,' is incorrect as it refers to the state of having excessive gas in the digestive system, which is unrelated to the patient's physical size. Choice C, 'Wariness,' is incorrect as it means cautiousness or being alert, which is not relevant to the patient's physical appearance described in the sentence.

3. Another word for PRECAUTION is?

Correct answer: B

Rationale: Another word for PRECAUTION is a preventive measure because both terms refer to actions taken in advance to prevent something untoward from happening. They are proactive steps aimed at avoiding potential risks or harm. While a routine procedure and habit may involve general practices, a preventive measure specifically denotes a proactive step taken to avert potential dangers or issues. 'Routine procedure' is incorrect as it does not necessarily imply preventive action. 'Habit' is incorrect as it refers to repeated behaviors rather than proactive steps. 'Safeguard' is incorrect as it generally means protection rather than a proactive preventive action.

4. What type of joint is found at the elbow?

Correct answer: B

Rationale: The correct answer is B: Hinge. A hinge joint, such as the one found at the elbow, allows for movement primarily in one plane, enabling flexion and extension similar to the movement of a door hinge. This joint structure permits bending and straightening of the arm, controlling the range of motion in a specific direction. Choices A, C, and D are incorrect. A ball and socket joint allows for multi-axial movement like the hip joint, a pivot joint allows for rotation around an axis like the joint between the first and second cervical vertebrae, and a saddle joint allows for movement in two planes at right angles to each other like the joint at the base of the thumb.

5. Select the word that means 'take into the body.'

Correct answer: B

Rationale: The correct answer is B: 'ingest.' The word 'ingest' means to take into the body, typically referring to food or drink. Choice A, 'congest,' means to block or fill up with fluid. Choice C, 'collect,' means to bring or gather together. Choice D, 'suppress,' means to prevent something from happening or to restrain.

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