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Mechanical Engineering - Machine Design

Exercise : Machine Design - Section 6
1.
Two rigid plates are clamped by means of bolt and nut with an initial force F. After tightening, a separating force P (P < F) is applied to the lower plate, which in turn acts on the nut. The tension in the both after this is
F + P
F - P
P
F
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
The bearings of medium series have capacity __________ over the light series.
10 to 20%
20 to 30%
30 to 40%
40 to 50%
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
The antifriction bearings
have low starting and low running friction at moderate speeds
have high initial cost
can carry both radial and thrust loads
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
In a partial journal bearing, the angle of contact of the bearing with the journal is
120°
180°
270°
360°
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
A shaft coupling should
be easy to connect or disconnect
transmit full power of the shaft
hold the shafts in perfect alignment
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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