Exercise: Machine Design

Questions for: Machine Design

If T1 and T2 are the tensions on the tight and slack sides of the belt respectively, and Tc is the centrifugal tension, then initial tension in the belt is equal to
A:
T1 - T2 + Tc
B:
T1 + T2 + Tc
C:
D:
Answer: D
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The product of the diametral pitch and circular pitch is equal to
A:
1
B:
1/π
C:
π
D:
π x number of teeth
Answer: C
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The gears are termed as medium velocity gears, if their peripheral velocity is
A:
1-3 m/s
B:
3-15 m/s
C:
15-30 m/s
D:
30-50 m/s
Answer: B
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The largest diameter of an external or internal screw thread is known as
A:
minor diameter
B:
major diameter
C:
pitch diameter
D:
none of these
Answer: B
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The power transmitted by a belt drive is maximum when the maximum tension in the belt is __________ the centrifugal tension.
A:
equal to
B:
double
C:
three times
D:
six times
Answer: C
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