Theory of Machine
Which of the following property of the instantaneous center is correct?

A rigid link rotates instantaneously relative to another link at the instantaneous centre for the configuration of the mechanism considered.
The two rigid links have no linear velocity relative to each other at the instantaneous centre.
The velocity of the instantaneous centre relative to any third rigid link is same whether the instantaneous centre is regarded as a point on the first rigid link or on the second rigid link.
All of these

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
Which of the following statements regarding laws governing the friction between dry surfaces are correct?

The friction force is directly proportional to the normal force.
The friction force is independent of me area of contact.
All of these
The friction force is dependent on the materials of the contact surfaces.

ANSWER DOWNLOAD EXAMIANS APP

Theory of Machine
In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line of stroke PO and rotates with uniform angular velocity at ω rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral CQNO, if N coincides with O, then

Acceleration and velocity of the piston P is maximum
Acceleration and velocity of the piston P is zero
Acceleration of the piston P is zero and its velocity is maximum
Acceleration of the piston P is maximum and its velocity is zero

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Theory of Machine