Ramsay Test Mechanical Maintenance 2 — Questions and Answers
Question 1: A V-belt is slipping on its pulleys even though it appears intact. What is the most likely cause?
- Belt tension is too low (Correct answer)
- Belt tension is too high
- Pulleys are perfectly aligned
- The motor is undersized
Correct answer: Belt tension is too low
Insufficient tension lets the belt slip in the pulley grooves, causing power loss and squealing.
Question 2: Which tool is best for measuring the inside diameter of a bored hole to within 0.001 inch?
- Inside micrometer (Correct answer)
- Tape measure
- Combination square
- Feeler gauge
Correct answer: Inside micrometer
An inside micrometer gives precise internal diameter readings to a thousandth of an inch.
Question 3: A bearing runs hot and noisy shortly after installation. The most common cause is:
- Over-lubrication or misalignment (Correct answer)
- Too little load
- The bearing being brand new
- Low ambient temperature
Correct answer: Over-lubrication or misalignment
Excess grease or shaft misalignment generates heat and premature bearing failure.
Question 4: Two spur gears mesh together. If the driver gear has 20 teeth and the driven gear has 40 teeth, the driven gear turns:
- Half as fast as the driver (Correct answer)
- Twice as fast as the driver
- At the same speed
- Four times as fast
Correct answer: Half as fast as the driver
A larger driven gear (double the teeth) rotates at half the driver's speed.
Question 5: What is the purpose of a shim during machine alignment?
- To make small height adjustments under a component (Correct answer)
- To lubricate the shaft
- To seal against fluid leaks
- To increase belt tension
Correct answer: To make small height adjustments under a component
Thin shims are placed under feet to raise components in precise increments for alignment.
Question 6: A threaded fastener keeps loosening from vibration. The best fix is to add a:
- Lock washer or thread-locking compound (Correct answer)
- Larger flat washer only
- Thinner bolt
- Drop of water
Correct answer: Lock washer or thread-locking compound
Lock washers or thread locker resist the rotational loosening caused by vibration.
Question 7: When using a torque wrench, you should tighten a bolt to:
- The manufacturer's specified torque value (Correct answer)
- As tight as physically possible
- Hand-tight only
- Until the wrench breaks
Correct answer: The manufacturer's specified torque value
Torque wrenches apply a specific rotational force to avoid under- or over-tightening.
Ramsay Test Mechanical Maintenance 2
A V-belt is slipping on its pulleys even though it appears intact.
What is the most likely cause?