EIAT Measurement and Conversion 5 โ Questions and Answers
Question 1: A hydraulic jack raises a car at 0.25 feet per second. How many inches per minute does it rise?
- 60 in/min
- 120 in/min
- 180 in/min (Correct answer)
- 240 in/min
Correct answer: 180 in/min
0.25 ft/s ร 12 in/ft ร 60 s/min = 180 in/min.
Question 2: An overhead clearance of 14 feet 6 inches must be recorded in decimal feet. What is the correct value?
- 14.5 ft (Correct answer)
- 14.6 ft
- 14.06 ft
- 14.56 ft
Correct answer: 14.5 ft
6 inches = 6/12 = 0.5 feet, so 14 ft 6 in = 14.5 feet.
Question 3: A car operating at 200 fpm must be expressed in meters per minute. (1 ft = 0.3048 m)
- 40.96 m/min
- 60.96 m/min (Correct answer)
- 80.96 m/min
- 100.96 m/min
Correct answer: 60.96 m/min
200 ft/min ร 0.3048 m/ft = 60.96 m/min.
Question 4: A wiring conduit must span 7 yards. How many feet of conduit is needed?
- 14 ft
- 18 ft
- 21 ft (Correct answer)
- 24 ft
Correct answer: 21 ft
7 yards ร 3 ft/yard = 21 feet.
Question 5: A traction elevator counterweight displacement is measured at 2,400 cubic centimeters. How many liters is that?
- 0.24 L
- 2.4 L (Correct answer)
- 24 L
- 240 L
Correct answer: 2.4 L
2,400 cmยณ รท 1,000 cmยณ/L = 2.4 liters.
Question 6: A roped hydraulic system uses 30 psi of pressure. Convert this to kPa. (1 psi โ 6.895 kPa)
- 186.5 kPa
- 206.85 kPa (Correct answer)
- 226.85 kPa
- 246.5 kPa
Correct answer: 206.85 kPa
30 psi ร 6.895 kPa/psi = 206.85 kPa.
Question 7: A hoist drum makes 5.5 revolutions per rope pull. If the drum diameter is 24 inches, how many feet of rope is wound per pull?
- 27.5 ft
- 34.56 ft (Correct answer)
- 69.12 ft
- 103.67 ft
Correct answer: 34.56 ft
Circumference = ฯ ร 24 โ 75.36 in; 5.5 ร 75.36 = 414.5 in รท 12 = 34.56 ft.
EIAT Measurement and Conversion 5
A hydraulic jack raises a car at 0.25 feet per second.
How many inches per minute does it rise?