EIAT Fractions and Decimals Computation 4 — Questions and Answers
Question 1: A job requires 4 2/3 hours. A worker completes 1 1/3 hours. How much time remains?
- 3 1/3 hours (Correct answer)
- 3 2/3 hours
- 3 hours
- 3 1/6 hours
Correct answer: 3 1/3 hours
4 2/3 − 1 1/3 = 3 1/3 hours.
Question 2: A decimal torque reading is 14.625 ft-lbs. Expressed as a mixed number, this is:
- 14 5/8 ft-lbs (Correct answer)
- 14 3/4 ft-lbs
- 14 1/2 ft-lbs
- 14 7/8 ft-lbs
Correct answer: 14 5/8 ft-lbs
0.625 = 625/1000 = 5/8, so 14.625 = 14 5/8 ft-lbs.
Question 3: If 3/5 of the elevator's travel time is spent ascending, what fraction is spent descending?
- 2/5 (Correct answer)
- 1/3
- 1/5
- 3/5
Correct answer: 2/5
1 − 3/5 = 2/5 of time is spent descending.
Question 4: A hydraulic cylinder extends 0.045 inch per psi. How far does it extend at 200 psi?
- 9.0 inches (Correct answer)
- 8.5 inches
- 9.5 inches
- 10.0 inches
Correct answer: 9.0 inches
0.045 × 200 = 9.0 inches.
Question 5: A mechanic uses 2/3 of a box of grease cartridges containing 12 cartridges. How many cartridges were used?
- 8 (Correct answer)
- 6
- 9
- 10
Correct answer: 8
2/3 × 12 = 8 cartridges.
Question 6: Two elevator cables are 18.75 feet and 22.5 feet long. What is the total length?
- 41.25 feet (Correct answer)
- 40.75 feet
- 41.5 feet
- 40.25 feet
Correct answer: 41.25 feet
18.75 + 22.50 = 41.25 feet.
Question 7: A counterweight is 7/10 of the car weight plus half the capacity load. If car weight is 2,000 lbs and half capacity is 500 lbs, the counterweight is:
- 1,900 lbs (Correct answer)
- 2,000 lbs
- 1,800 lbs
- 2,100 lbs
Correct answer: 1,900 lbs
7/10 × 2,000 + 500 = 1,400 + 500 = 1,900 lbs.
EIAT Fractions and Decimals Computation 4
A job requires 4 2/3 hours.
A worker completes 1 1/3 hours.
How much time remains?