EIAT Measurement and Conversion 4 โ Questions and Answers
Question 1: A motor runs at 1,750 RPM. How many revolutions does it complete in 10 seconds?
- 175 rev
- 291.7 rev (Correct answer)
- 1,750 rev
- 17,500 rev
Correct answer: 291.7 rev
1,750 RPM รท 60 s/min ร 10 s = 291.7 revolutions.
Question 2: A tension spring stretches 3.175 cm under load. What is this measurement in millimeters?
- 0.3175 mm
- 3.175 mm
- 31.75 mm (Correct answer)
- 317.5 mm
Correct answer: 31.75 mm
3.175 cm ร 10 mm/cm = 31.75 mm.
Question 3: An elevator rises 240 feet in 20 seconds. What is its speed in feet per minute?
- 480 fpm
- 600 fpm
- 720 fpm (Correct answer)
- 840 fpm
Correct answer: 720 fpm
240 ft รท 20 s ร 60 s/min = 720 feet per minute.
Question 4: A sump pit holds 8.5 cubic feet of water. How many gallons is that? (1 cu ft โ 7.48 gal)
- 53.6 gal
- 63.6 gal (Correct answer)
- 73.6 gal
- 83.6 gal
Correct answer: 63.6 gal
8.5 cu ft ร 7.48 gal/cu ft โ 63.6 gallons.
Question 5: A buffer spring is compressed 4 inches under a test load. Express this in centimeters. (1 in = 2.54 cm)
- 8.16 cm
- 9.28 cm
- 10.16 cm (Correct answer)
- 11.43 cm
Correct answer: 10.16 cm
4 in ร 2.54 cm/in = 10.16 cm.
Question 6: A sheave has a diameter of 24 inches. What is its circumference? (C = ฯd, ฯ โ 3.14)
- 37.68 in
- 56.52 in
- 75.36 in (Correct answer)
- 113.04 in
Correct answer: 75.36 in
C = ฯ ร d = 3.14 ร 24 = 75.36 inches.
Question 7: A load test weight of 907.2 kg is needed. Approximately how many pounds is that? (1 kg โ 2.205 lbs)
- 1,500 lbs
- 1,750 lbs
- 2,000 lbs (Correct answer)
- 2,250 lbs
Correct answer: 2,000 lbs
907.2 kg ร 2.205 lbs/kg โ 2,000 lbs.
EIAT Measurement and Conversion 4
A motor runs at 1,750 RPM.
How many revolutions does it complete in 10 seconds?