USPS Exam 955 MSS - Test 1 with all Correct & 100%
Verified Answers |Actual Complete Exam |Already
Graded A+
What is the raised part of a shaft called?
A. Bearing
B. Crown
C. Shoulder
D. Shelf ✔Correct Answer-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 ✔Correct Answer-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 ✔Correct Answer-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 ✔Correct Answer-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 ✔Correct Answer-Woodruff key
, What is essential about oil?
A. Viscosity
B. Cleanliness
C. Grade
D. All off the above ✔Correct Answer-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
D. All of the above ✔Correct Answer-All of the above (Oil flows and has lower viscosity than
grease and it also requires a reservoir)
What is 90W oil typically used for?
A. Chains
B. Gearboxes
C. Bearings
D. All of the above ✔Correct Answer-Gearboxes
The number 6-32 means what to a screw or bolt?
A. 6mm, 32 threads per inch
B. 6 threads per inch and 32mm long
C. number 6 with 32 threads per inch
D. None of the above ✔Correct Answer-NUMBER 6 (6mm diameter shaft) with 32 threads per
inch
What does 1/4-20 mean on a screw or bolt?
A. ¼ " shaft, 20 threads per inch
B. ¼ pitch, 20mm long
c. number 1, 4mm shaft, 20mm long
d. None of the above ✔Correct Answer-1/4" shaft, 20 threads per inch
Is high viscosity oil used on chains or low viscosity oil, or low or high viscosity grease?
A. Low viscosity grease
B. High viscosity grease
C. Low viscosity oil
d. High viscosity oil ✔Correct Answer-Low viscosity oil
Verified Answers |Actual Complete Exam |Already
Graded A+
What is the raised part of a shaft called?
A. Bearing
B. Crown
C. Shoulder
D. Shelf ✔Correct Answer-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 ✔Correct Answer-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 ✔Correct Answer-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 ✔Correct Answer-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 ✔Correct Answer-Woodruff key
, What is essential about oil?
A. Viscosity
B. Cleanliness
C. Grade
D. All off the above ✔Correct Answer-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
D. All of the above ✔Correct Answer-All of the above (Oil flows and has lower viscosity than
grease and it also requires a reservoir)
What is 90W oil typically used for?
A. Chains
B. Gearboxes
C. Bearings
D. All of the above ✔Correct Answer-Gearboxes
The number 6-32 means what to a screw or bolt?
A. 6mm, 32 threads per inch
B. 6 threads per inch and 32mm long
C. number 6 with 32 threads per inch
D. None of the above ✔Correct Answer-NUMBER 6 (6mm diameter shaft) with 32 threads per
inch
What does 1/4-20 mean on a screw or bolt?
A. ¼ " shaft, 20 threads per inch
B. ¼ pitch, 20mm long
c. number 1, 4mm shaft, 20mm long
d. None of the above ✔Correct Answer-1/4" shaft, 20 threads per inch
Is high viscosity oil used on chains or low viscosity oil, or low or high viscosity grease?
A. Low viscosity grease
B. High viscosity grease
C. Low viscosity oil
d. High viscosity oil ✔Correct Answer-Low viscosity oil
