you need to paint a rectangular swimming pool with dimensions 8m by 5m and a depth of 2m considering only the interior walls and floor not the top how
Logo

Nursing Elites

HESI A2

HESI A2 Math Practice Exam

1. How much paint do you need to paint the interior walls and floor of a rectangular swimming pool with dimensions 8m by 5m and a depth of 2m? (Assume one can of paint covers 10 sq m)

Correct answer: C

Rationale: To calculate the total area to be painted, find the area of each wall and the floor, sum them up, and subtract the area of the top surface of the pool. The area to be painted is (2*8 + 2*5 + 8*5) = 16 + 10 + 40 = 66 sq m. Since one can of paint covers 10 sq m, divide the total area (66 sq m) by the coverage area per can to determine the number of cans needed. Therefore, you need 88 sq m of paint, which is equivalent to 9 cans of paint. Choice A, B, and D are incorrect as they do not represent the correct calculation of the total area to be painted.

2. What can stop the penetration of beta radiation particles?

Correct answer: C

Rationale: Beta radiation particles are high-energy, fast-moving electrons or positrons. Aluminum foil is effective in stopping beta radiation due to its ability to absorb and block these particles. When beta particles interact with the aluminum foil, they lose energy and are absorbed, preventing their penetration. Plastic and glass are not as effective as aluminum foil in stopping beta radiation. While concrete provides some shielding against beta particles, aluminum foil is a more suitable material for this purpose as it offers better absorption and blocking capabilities.

3. Choose the meaning of the word 'affected' in the following sentence: 'Apply a thin film of cream to the affected area once or twice a day depending on the acuteness of the condition.'

Correct answer: B

Rationale: In the context of the sentence, 'affected' is used to describe the area that requires the application of cream. It refers to a part of the body that is diseased or suffering from some ailment. Therefore, the correct meaning of 'affected' in this context is 'Diseased.' Choice A, 'Involved,' does not accurately capture the medical context of the sentence. Choice C, 'Assumed,' is not relevant to the physical condition described in the sentence. Choice D, 'Perceived,' does not convey the idea of a physical ailment, making it incorrect. The most appropriate interpretation is 'Diseased,' as it aligns with the context of applying cream to a specific area due to a health issue.

4. Convert 2100 to standard time.

Correct answer: C

Rationale: Military time is based on a 24-hour clock. To convert 2100 hours to standard time, subtract 1200 from the time if it is greater than or equal to 1300. In this case, 2100 - 1200 = 900, which corresponds to 9:00 PM in standard time. Choice A, 12:00 PM, is incorrect because 2100 is in the evening, not noon. Choice B, 2:00 AM, is incorrect as it represents the early morning hours. Choice D, 2:00 PM, is incorrect as it is in the afternoon, not the evening.

5. Which statement could be inferred by the reader from the last paragraph of the passage?

Correct answer: B

Rationale: The inference that medical mistakes can happen even at reputable hospitals is suggested by the warning from Steve Harden about the risks involved. The passage acknowledges that even well-regarded facilities are not immune to errors, thereby supporting option B as a logical conclusion drawn from the text.

Similar Questions

What is the primary function of the respiratory system?
What are the soft spots on the head of a newborn called?
What is another word for cicatrix?
How are elements arranged in the periodic table?
Which connective tissue type attaches muscles to bones?

Access More Features

HESI A2 Basic
$49/ 30 days

  • 3,000 Questions with answers
  • 30 days access

HESI A2 Premium
$99/ 90 days

  • Actual HESI A2 Questions
  • 3,000 questions with answers
  • 90 days access

Other Courses