Millwright Exam Prep Math With Complete
Solutions 100% 2024
1. When the downward force at C2 is 100 lb and D2 = 2.5 inches, the upward force at C1 will
be ________lb if D1 = 4 inches.
A. 160
B. 256
C. 384
D. 240 - correct answer A. 160
x/12.56 sq in = 100 lbs/7.85 sq in
x = (100lbs/7.85 sq in)12.56
x = 160 lbs
2. Add the following decimals and express the answer to three decimal places. 0.4789 + 3.125 + 9.656
A. 13.26
B. 13.3
C. 13.259
D. 13.2599 - correct answer C. 13.259
3. What are common materials used as electrical conductors?
A. Silver, copper, aluminum
B. Copper, glass, lead
C. Mica, rubber, titanium
D. Gold, copper, mica - correct answer A. Silver, copper, aluminum
, 4. Large impulse turbines will use what of rotor?
A. Build-up rotors.
B. Solid rotors
C. Combination of solid and build-up rotors
D. All of the above - correct answer D. All of the above
5. The most effect purging medium to use when dealing with iron sulphide is:
A. air
B. carbon dioxide
C. nitrogen
D. water - correct answer D. water
6. The shape of a ball bearing is ______ when a load is applied to the ball.
A. elliptical
B. circular
C. rectangle
D. radial
E. trapezoid - correct answer A. elliptical
7. Which of the following is a typical 4000 hour inspection duty with compressors?
A. Service the crankcase breather
B. Take oil samples
C. Recalibrate all temperature and pressure gauges
D. Check gas discharge and inlet temperatures - correct answer A. Service the crankcase breather
Solutions 100% 2024
1. When the downward force at C2 is 100 lb and D2 = 2.5 inches, the upward force at C1 will
be ________lb if D1 = 4 inches.
A. 160
B. 256
C. 384
D. 240 - correct answer A. 160
x/12.56 sq in = 100 lbs/7.85 sq in
x = (100lbs/7.85 sq in)12.56
x = 160 lbs
2. Add the following decimals and express the answer to three decimal places. 0.4789 + 3.125 + 9.656
A. 13.26
B. 13.3
C. 13.259
D. 13.2599 - correct answer C. 13.259
3. What are common materials used as electrical conductors?
A. Silver, copper, aluminum
B. Copper, glass, lead
C. Mica, rubber, titanium
D. Gold, copper, mica - correct answer A. Silver, copper, aluminum
, 4. Large impulse turbines will use what of rotor?
A. Build-up rotors.
B. Solid rotors
C. Combination of solid and build-up rotors
D. All of the above - correct answer D. All of the above
5. The most effect purging medium to use when dealing with iron sulphide is:
A. air
B. carbon dioxide
C. nitrogen
D. water - correct answer D. water
6. The shape of a ball bearing is ______ when a load is applied to the ball.
A. elliptical
B. circular
C. rectangle
D. radial
E. trapezoid - correct answer A. elliptical
7. Which of the following is a typical 4000 hour inspection duty with compressors?
A. Service the crankcase breather
B. Take oil samples
C. Recalibrate all temperature and pressure gauges
D. Check gas discharge and inlet temperatures - correct answer A. Service the crankcase breather
