ANSWERS WITH RATIONALES
Exam coverage
• mechanical principles
• bearings and seals
• shafts and couplings
• power transmission
• pumps
• valves
• alignment
• rigging
• lubrication
• safety
,1. Which statement most accurately explains the principle involved when Bearings
support rotating shafts and require correct selection, lubrication, alignment, and
inspection.. Which answer best applies to the underlying industrial mechanic millwright
period 1 concept in this situation?
A. Power transmission systems may use belts, chains, gears, or other components to transfer
motion..
B. Bearings support rotating shafts and require correct selection, lubrication, alignment, and
inspection..
C. Shafts and couplings transmit torque and must be checked for alignment, damage, and
secure attachment..
D. Pumps require suitable alignment, lubrication, seals, and operating conditions..
Correct answer: B
Rationale: The correct choice directly states the governing principle: Bearings support rotating
shafts and require correct selection, lubrication, alignment, and inspection.. The alternatives
address related topics but do not directly answer the issue being tested.
2. During a service situation, which option best describes why Shafts and couplings
transmit torque and must be checked for alignment, damage, and secure attachment..
Which answer best applies to the underlying industrial mechanic millwright period 1
concept in this situation?
A. Power transmission systems may use belts, chains, gears, or other components to transfer
motion..
,B. Valves control or isolate fluid flow and must be selected for service conditions..
C. Pumps require suitable alignment, lubrication, seals, and operating conditions..
D. Shafts and couplings transmit torque and must be checked for alignment, damage, and
secure attachment..
Correct answer: D
Rationale: The correct choice directly states the governing principle: Shafts and couplings
transmit torque and must be checked for alignment, damage, and secure attachment.. The
alternatives address related topics but do not directly answer the issue being tested.
3. A technician is evaluating a condition; which response is most appropriate because
Power transmission systems may use belts, chains, gears, or other components to
transfer motion.. Which answer best applies to the underlying industrial mechanic
millwright period 1 concept in this situation?
A. Valves control or isolate fluid flow and must be selected for service conditions..
B. Power transmission systems may use belts, chains, gears, or other components to transfer
motion..
C. Pumps require suitable alignment, lubrication, seals, and operating conditions..
D. Alignment reduces excessive forces and vibration between connected rotating equipment..
Correct answer: B
Rationale: The correct choice directly states the governing principle: Power transmission
systems may use belts, chains, gears, or other components to transfer motion.. The
, alternatives address related topics but do not directly answer the issue being tested.
4. Which choice correctly identifies the main reason that Pumps require suitable
alignment, lubrication, seals, and operating conditions.. Which answer best applies to
the underlying industrial mechanic millwright period 1 concept in this situation?
A. Alignment reduces excessive forces and vibration between connected rotating equipment..
B. Rigging requires understanding load weight, equipment capacity, attachment points, and
communication..
C. Valves control or isolate fluid flow and must be selected for service conditions..
D. Pumps require suitable alignment, lubrication, seals, and operating conditions..
Correct answer: D
Rationale: The correct choice directly states the governing principle: Pumps require suitable
alignment, lubrication, seals, and operating conditions.. The alternatives address related topics
but do not directly answer the issue being tested.
5. When reviewing this equipment, which statement best applies because Valves
control or isolate fluid flow and must be selected for service conditions.. Which answer
best applies to the underlying industrial mechanic millwright period 1 concept in this
situation?
A. Valves control or isolate fluid flow and must be selected for service conditions..
B. Rigging requires understanding load weight, equipment capacity, attachment points, and
communication..