USPS Exam 955 MSS - TEST 1 questions with verified detailed
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solutions
What is the raised part of a shaft called?
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A. Bearing
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B. Crown
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C. Shoulder
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D. Shelf - ✔✔Shoulder
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What type of bearing should not be greased?
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A. a roller bearing
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B. a seal bearing
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C. a ball bearing
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D. a bad bearing - ✔✔A permanent seal bearing - brass bushings should not be greased
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Would you seat a bearing by using outer or inner surface?
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A. inner, with a brass hammer
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B. inner, with an arbor press
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C. outer
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D. none of the above - ✔✔By applying pressure to the OUTER surface
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Why are key ways placed on a shaft?
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, A. to keep the pulley or gear from turning on the shaft
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B. so you can unlock them
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C. So another shaft can interlock with the first shaft
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D. So the key stock has a place to go - ✔✔To keep a pulley or a gear from turning on the shaft
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What is the name of a key that is placed in the keyway that has one side flat and the other side
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rounded?
A. Key stock
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B. Turn key
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C. Woodruff key
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D. Salvatore key - ✔✔Woodruff key
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What is essential about oil?
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A. Viscosity
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B. Cleanliness
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C. Grade
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D. All off the above - ✔✔All of the above (viscosity, cleanliness, grade)
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What is the difference between oil and grease?
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A. Oil requires a reservoir
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B. Oil has lower viscosity
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C. Oil flows
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solutions
What is the raised part of a shaft called?
|| || || || || || || ||
A. Bearing
||
B. Crown
||
C. Shoulder
||
D. Shelf - ✔✔Shoulder
|| || ||
What type of bearing should not be greased?
|| || || || || || ||
A. a roller bearing
|| || ||
B. a seal bearing
|| || ||
C. a ball bearing
|| || ||
D. a bad bearing - ✔✔A permanent seal bearing - brass bushings should not be greased
|| || || || || || || || || || || || || || ||
Would you seat a bearing by using outer or inner surface?
|| || || || || || || || || ||
A. inner, with a brass hammer
|| || || || ||
B. inner, with an arbor press
|| || || || ||
C. outer
||
D. none of the above - ✔✔By applying pressure to the OUTER surface
|| || || || || || || || || || || ||
Why are key ways placed on a shaft?
|| || || || || || ||
, A. to keep the pulley or gear from turning on the shaft
|| || || || || || || || || || ||
B. so you can unlock them
|| || || || ||
C. So another shaft can interlock with the first shaft
|| || || || || || || || ||
D. So the key stock has a place to go - ✔✔To keep a pulley or a gear from turning on the shaft
|| || || || || || || || || || || || || || || || || || || || || ||
What is the name of a key that is placed in the keyway that has one side flat and the other side
|| || || || || || || || || || || || || || || || || || || || || ||
rounded?
A. Key stock
|| ||
B. Turn key
|| ||
C. Woodruff key
|| ||
D. Salvatore key - ✔✔Woodruff key
|| || || || ||
What is essential about oil?
|| || || ||
A. Viscosity
||
B. Cleanliness
||
C. Grade
||
D. All off the above - ✔✔All of the above (viscosity, cleanliness, grade)
|| || || || || || || || || || || ||
What is the difference between oil and grease?
|| || || || || || ||
A. Oil requires a reservoir
|| || || ||
B. Oil has lower viscosity
|| || || ||
C. Oil flows
|| ||
