Q. When the work is by on the gases, which of the following effect is observed on the turning moment diagram?
✅ Correct Answer: (B)
formation of positive loop
Dynamics of Machines MCQs | Page - 11
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Q. Compression stroke results in
✅ Correct Answer: (A)
formation of negative loop
Q. 4 strokes engine have a lower thermal efficiency than 2 stroke engine.
✅ Correct Answer: (B)
false
Q. While drawing the turning moment diagram, which of the forces in not taken into account?
✅ Correct Answer: (D)
coriolis force
Q. In the given turning moment diagram, the process X is known as
✅ Correct Answer: (C)
power
Q. 3 BALANCING MACHINES-FIELD BALANCING OF DISCS AND ROTORS.
✅ Correct Answer: (D)
inertia forces
Q. Balancing of single rotating mass by balancing masses in same plane and in different planes cannot take place.
✅ Correct Answer: (B)
false
Q. In a revolving rotor, the centrifugal force remains balanced as long as the centre of the mass of the rotor lies
✅ Correct Answer: (B)
on the axis of the shaft
Q. What is not the effect of unbalanced forces?
✅ Correct Answer: (D)
violation of conservation of mass principle
Q. Balancing of reciprocating masses is the process of providing the second mass in order to counteract the effect of the centrifugal force of the first mass.
✅ Correct Answer: (B)
false
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