ATI TEAS 7
Metric Conversions for Nursing
1. How many quarts are equivalent to 2 liters?
- A. 1.06 quarts
- B. 0.5 quarts
- C. 2.1 quarts
- D. 4 quarts
Correct answer: A
Rationale: To convert liters to quarts, we know that 1 liter is approximately equal to 1.06 quarts. Therefore, 2 liters would be around 2.12 quarts. However, for practical purposes, it's often rounded to 2.1 quarts. Option A, '1.06 quarts,' is the closest and most accurate approximation. Option B, '0.5 quarts,' is incorrect as it represents half of the actual conversion. Option C, '2.1 quarts,' is close but slightly higher than the actual conversion. Option D, '4 quarts,' is double the correct conversion and is therefore incorrect.
2. How many grams are in 5 kilograms?
- A. 50 grams
- B. 500 grams
- C. 5000 grams
- D. 5 grams
Correct answer: C
Rationale: To convert kilograms to grams, you need to multiply by 1000 because there are 1000 grams in a kilogram. Therefore, 5 kilograms x 1000 grams/kilogram = 5000 grams. Choices A, B, and D are incorrect because they do not correctly convert kilograms to grams.
3. What is the metric prefix for 10^-12 and how does it relate to meters?
- A. pico- (p) = 10^-12 meters
- B. nano- (n) = 10^-12 meters
- C. femto- (f) = 10^-12 meters
- D. pico- (p) = 10^-15 meters
Correct answer: C
Rationale: The prefix 'femto-' stands for 10^-15, making femtometer equal to 10^-15 meters. The incorrect choices are A and B because 'pico-' represents 10^-12 (picometer) and 'nano-' represents 10^-9 (nanometer), respectively. Choice D is also incorrect as 'pico-' is associated with 10^-12, not 10^-15.
4. How many yards are in one mile?
- A. 1760 yards
- B. 1500 yards
- C. 2000 yards
- D. 1800 yards
Correct answer: A
Rationale: The correct answer is A: 1760 yards. There are 1760 yards in one mile. This conversion is a standard unit of measurement in the imperial system. Choice B, 1500 yards, is incorrect as it is not the correct conversion from miles to yards. Choice C, 2000 yards, is also incorrect as it does not represent the accurate conversion. Choice D, 1800 yards, is incorrect as it does not reflect the correct number of yards in a mile according to the established conversion rate.
5. The prefix 'milli' stands for 0.001 (10^-3). This means, 1 mm is the same as:
- A. 0.01 m
- B. 0.001 m
- C. 0.1 m
- D. 1 m
Correct answer: B
Rationale: The correct answer is B: '0.001 m.' The prefix 'milli' represents a factor of 10^-3, which means one millimeter (mm) is equivalent to 0.001 meters (m). Therefore, 1 mm is equal to 0.001 m. Choice A, '0.01 m,' is incorrect as it represents 0.01 meters, not 0.001 meters. Choice C, '0.1 m,' is incorrect because it stands for 0.1 meters, which is 10 times greater than 1 mm. Choice D, '1 m,' is incorrect as it represents 1 meter, which is 1000 times greater than 1 mm.
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