Exercise: Machine Design

Questions for: Machine Design

Lewis equation is applied
A:
only to the pinion
B:
only to the gear
C:
to stronger of the pinion or gear
D:
to weaker of the pinion or gear
Answer: D
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In a steam engine, the piston rod is usually connected to the crosshead by means of a
A:
knuckle joint
B:
cotter joint
C:
oldham coupling
D:
universal joint
Answer: B
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According to I.B.R., the thickness of the boiler shell should not be less than
A:
4 mm
B:
5 mm
C:
6 mm
D:
7 mm
Answer: D
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In the assembly of pulley, key and shaft
A:
pulley is made the weakest
B:
key is made the weakest
C:
key is made the stongest
D:
all the three are designed for equal strength
Answer: B
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Which of the following screw thread is adopted for power transmission in either direction?
A:
Acme threads
B:
Square threads
C:
Buttress threads
D:
Multiple threads
Answer: B
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