EIAT Fractions and Decimals Computation 2 — Questions and Answers
Question 1: A cable is 3/4 inch thick. Another cable is 5/8 inch thick. What is the combined thickness?
- 1 3/8 inches (Correct answer)
- 1 1/4 inches
- 1 1/2 inches
- 1 5/8 inches
Correct answer: 1 3/8 inches
3/4 + 5/8 = 6/8 + 5/8 = 11/8 = 1 3/8 inches.
Question 2: A technician uses 2.75 gallons of lubricant from a 10-gallon drum. How much remains?
- 7.25 gallons (Correct answer)
- 7.50 gallons
- 7.15 gallons
- 6.75 gallons
Correct answer: 7.25 gallons
10.00 − 2.75 = 7.25 gallons remain.
Question 3: A counterweight travels 5/6 of its full path during a test. If the full path is 120 feet, how many feet did it travel?
- 100 feet (Correct answer)
- 96 feet
- 110 feet
- 90 feet
Correct answer: 100 feet
5/6 × 120 = 600/6 = 100 feet.
Question 4: An elevator door takes 1.2 seconds to open and 0.85 seconds to close. What is the total cycle time?
- 2.05 seconds (Correct answer)
- 2.15 seconds
- 1.95 seconds
- 2.00 seconds
Correct answer: 2.05 seconds
1.2 + 0.85 = 2.05 seconds total.
Question 5: A bolt requires 7/8 inch clearance. A gap measures 3/4 inch. By how much is the gap short?
- 1/8 inch (Correct answer)
- 1/4 inch
- 3/8 inch
- 1/16 inch
Correct answer: 1/8 inch
7/8 − 3/4 = 7/8 − 6/8 = 1/8 inch short.
Question 6: A motor runs at 0.6 of its rated speed. If rated speed is 450 RPM, what is the actual speed?
- 270 RPM (Correct answer)
- 280 RPM
- 260 RPM
- 300 RPM
Correct answer: 270 RPM
0.6 × 450 = 270 RPM.
Question 7: A technician splits a 3 1/2-hour job equally among 7 workers. How long does each worker spend?
- 1/2 hour (Correct answer)
- 1/3 hour
- 2/3 hour
- 3/7 hour
Correct answer: 1/2 hour
3 1/2 ÷ 7 = 7/2 ÷ 7 = 7/14 = 1/2 hour each.
EIAT Fractions and Decimals Computation 2
A cable is 3/4 inch thick.
Another cable is 5/8 inch thick.
What is the combined thickness?