Exercise: Machine Design

Questions for: Machine Design

The major diameter of a screw thread is also known as core or root diameter.
A:
Yes
B:
No
C:
D:
Answer: B
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An involute pinion and gear are in mesh. If both have the same size of addendum, then there will be interference between the
A:
tip of the gear and flank of pinion
B:
tip of the pinion and flank of gear
C:
flanks of both gear and pinion
D:
tip of both gear and pinion
Answer: A
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According to law of gearing, the common normal at the point of contact between a pair of teeth must always pass through the pitch point.
A:
Correct
B:
Incorrect
C:
D:
Answer: A
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When the speed of belt increases,
A:
the coefficient of friction between the belt and pulley increases
B:
the coefficient of friction between the belt and pulley decreases
C:
the power transmitted will decrease
D:
the power transmitted will increase
Answer: C
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A tangent key is provided in pairs at right angles and each key is to withstand torsion in one direction only.
A:
Agree
B:
Disagree
C:
D:
Answer: A
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