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Mechanical Engineering - Theory of machines

Exercise : Theory of machines - Section 7
26.
The frictional torque transmitted in a flat pivot bearing, considering uniform pressure, is (where μ = Coefficient of friction, W = Load over the bearing, and R = Radius of bearing surface)
μ W R
μ W R
μ W R
μ W R
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
In Meyer's expansion valve, the main valve is driven by an eccentric having an angle of advance from
10° - 15°
15° - 25°
25° - 30°
30° - 40°
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
A kinematic chain is known as a mechanism when
none of the links is fixed
one of the links is fixed
two of the links are fixed
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
When the pitching of a ship is __________ the effect of gyroscopic couple acting on it will be to move the ship towards port side.
upward
downward
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
There are six gears A, B, C, D, E and F in a compound train. The numbers of teeth in the gears are 20, 60, 30, 80, 25 and 75 respectively. The ratio of angular speeds of the driven (F) to the driver (A) of the drive is
1/24
1/8
4/15
12
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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