MSSC CPT Maintenance Awareness
Pre-Quiz 2 with A+ graded Correct
and Verified Answers
1. ___________ coupling are used to act as a safety device if torque
overload occurs - ✔✔clutch
2. ____________ may remove a lockout on the power source of a
piece of mechanical equipment - ✔✔only the person who
installed the lockout
3. A _____ should be used to check for sheave groove wear. -
✔✔sheave gauge
4. A ______ bearing has inner and outer races that allow it to carry
heavier axial loads than a standard ball bearing. - ✔✔angular
contact
5. A belt drive having a 12 inch pulley and a 6 inch drive pulley has a
pulley ratio of ___________ - ✔✔0.5
6. A chain drive system has a driver sprocket with 24 teeth and a
driven sprocket with 72 teeth. If the driver shaft has 633 ft-lds
torque, the torque on the drive shaft will be ____________ -
✔✔1899 ft-lbs
, 7. A chain should be replaced when its length becomes
____________ longer than the original length. - ✔✔3%
8. A common sign of a misaligned coupling is ____________ -
✔✔excessive vibration
9. A power diagram is needed with a ladder diagram to
show__________ - ✔✔proper connections for the power devices
being used
10. A shaft coupling may be out of round if dial indicator shows
___________. - ✔✔any movement
11. A special link used to reconnect a chain is called a ________
link. - ✔✔master
12. An electrical diagram that arranges wires of a circuit into
order rows is called a ____________ - ✔✔ladder diagram
13. An off delay timer contact __________. - ✔✔energizes when
the time is activated and de-energizes when the time times out
Pre-Quiz 2 with A+ graded Correct
and Verified Answers
1. ___________ coupling are used to act as a safety device if torque
overload occurs - ✔✔clutch
2. ____________ may remove a lockout on the power source of a
piece of mechanical equipment - ✔✔only the person who
installed the lockout
3. A _____ should be used to check for sheave groove wear. -
✔✔sheave gauge
4. A ______ bearing has inner and outer races that allow it to carry
heavier axial loads than a standard ball bearing. - ✔✔angular
contact
5. A belt drive having a 12 inch pulley and a 6 inch drive pulley has a
pulley ratio of ___________ - ✔✔0.5
6. A chain drive system has a driver sprocket with 24 teeth and a
driven sprocket with 72 teeth. If the driver shaft has 633 ft-lds
torque, the torque on the drive shaft will be ____________ -
✔✔1899 ft-lbs
, 7. A chain should be replaced when its length becomes
____________ longer than the original length. - ✔✔3%
8. A common sign of a misaligned coupling is ____________ -
✔✔excessive vibration
9. A power diagram is needed with a ladder diagram to
show__________ - ✔✔proper connections for the power devices
being used
10. A shaft coupling may be out of round if dial indicator shows
___________. - ✔✔any movement
11. A special link used to reconnect a chain is called a ________
link. - ✔✔master
12. An electrical diagram that arranges wires of a circuit into
order rows is called a ____________ - ✔✔ladder diagram
13. An off delay timer contact __________. - ✔✔energizes when
the time is activated and de-energizes when the time times out
