HESI A2
Practice HESI A2 Math Test
1. Report all decimal places: 3.7 + 7.289 + 4 =
- A. 14.989
- B. 5.226
- C. 15.0
- D. 5.012
Correct answer: A
Rationale: To find the sum, you add the numbers 3.7, 7.289, and 4 together. 3.7 + 7.289 + 4 equals 14.989. The correct answer is 14.989 because it includes all decimal places from the sum of the numbers provided. Choice B (5.226) is incorrect as it doesn't account for the sum of the given numbers. Choice C (15.0) is incorrect as it rounds the sum to the nearest whole number, losing the decimal precision. Choice D (5.012) is incorrect as it doesn't reflect the correct sum of the decimal numbers.
2. To STANCH a wound is to ____ it.
- A. Expand
- B. Restrict
- C. Release
- D. Avoid
Correct answer: B
Rationale: The correct answer is B: 'Restrict.' To stanch a wound means to stop or restrict the flow of blood. Choice A, 'Expand,' is incorrect as it means to make something larger. Choice C, 'Release,' is incorrect as it means to set something free. Choice D, 'Avoid,' is incorrect as it means to keep away or prevent something.
3. A paroxysm is a sudden spasm. Another word for this might be
- A. Symptom
- B. Convulsion
- C. Efficacy
- D. Embolism
Correct answer: B
Rationale: The correct answer is B, 'Convulsion.' A paroxysm and a convulsion both refer to sudden, involuntary spasms. This makes 'Convulsion' the most suitable synonym. 'Symptom' (Choice A) refers to an indication of a condition but not a spasm. 'Efficacy' (Choice C) refers to the ability to produce a desired or intended result, unrelated to spasms. 'Embolism' (Choice D) refers to an obstruction in a blood vessel, not a sudden spasm.
4. Balance this equation: Fe + Cl2 → FeCl3
- A. 2Fe + 2Cl2 → 2FeCl3
- B. 2Fe + 3Cl2 → 2FeCl3
- C. 3Fe + 2Cl2 → 3FeCl3
- D. 3Fe + 3Cl2 → 6FeCl3
Correct answer: B
Rationale: In the given equation, Fe combines with Cl to form FeCl3. To balance the equation, we need to have the same number of each element on both sides. Since Cl is represented as Cl2 in the equation, we need 3 Cl2 molecules to balance Fe, resulting in 2Fe + 3Cl2 → 2FeCl3. Choice A is incorrect because it only balances Fe but not Cl2. Choice C is incorrect as it balances Fe but not Cl2. Choice D is incorrect as it balances Fe but overbalances Cl2.
5. Solve for x. x/250 = 3/500
- A. 1.5
- B. 2
- C. 1500
- D. 25
Correct answer: A
Rationale: To solve the proportion x/250 = 3/500, cross multiply to get 500x = 750. Then solve for x by dividing both sides by 500, which results in x = 1.5. Therefore, the correct answer is A. Choice B (2) is incorrect because the correct solution is 1.5, not 2. Choice C (1500) is incorrect as it does not align with the correct calculation of the proportion. Choice D (25) is incorrect and does not match the correct solution obtained by solving the proportion.
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