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Mechanical Engineering - Theory of machines

Exercise : Theory of machines - Section 9
11.
In a Hartnell governor, the stiffness of the spring is given by (where S1 and S2 = Spring forces exerted on the sleeve at max. and min. radii of rotation, and h = Compression of the spring)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
The relation between the controlling force (Fc) and radius of rotation (r) for a stable spring controlled governor is
Fc = ar + b
Fc = ar - b
Fc = ar
Fc = a/r + b
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
ABCD is a four bar mechanism in which AB = 310 mm and CD = 450 mm. AB and CD are both perpendicular to the fixed link AD, as shown in the below figure. If the velocity of B at this condition is v. Then the velocity of C is
v
v
v
v
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
A rotary internal combustion engine has __________ cylinders.
four
five
six
seven
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
The power transmitted by a belt is maximum when the maximum tension in the belt is __________ of centrifugal tension.
one-third
two-third
double
three times
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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