Theory Of Machine - Practice Test

[#281] The two parallel and coplanar shafts are connected by gears having teeth parallel to the axis of the shaft. This arrangement is known as

(A) Spur gearing

(B) Helical gearing

(C) Bevel gearing

(D) Spiral gearing

Correct Answer

(A) Spur gearing

[#282] The type of pair formed by two elements which are so connected that one is constrained to turn or revolve about a fixed axis of another element is known as

(A) Turning pair

(B) Rolling pair

(C) Sliding pair

(D) Spherical pair

Correct Answer

(A) Turning pair

[#283] The velocity of any point in mechanism relative to any other point on the mechanism on velocity polygon is represented by the line

(A) Joining the corresponding points

(B) Perpendicular to line as per (A)

(C) Not possible to determine with these data

(D) At 45° to line as per (A)

Correct Answer

(A) Joining the corresponding points

[#284] Which of the following property of the instantaneous center is correct?

(A) A rigid link rotates instantaneously relative to another link at the instantaneous centre for the configuration of the mechanism considered.

(B) The two rigid links have no linear velocity relative to each other at the instantaneous centre.

(C) 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.

(D) All of the above

Correct Answer

(D) All of the above

[#285] The periodic time of a compound pendulum is __________ when the distance between the point of suspension and the center of gravity is equal to the radius of gyration of the body about its center of gravity.

(A) Zero

(B) Minimum

(C) Maximum

(D) None of these

Correct Answer

(B) Minimum

Theory Of Machine - Study Mode

[#281] The two parallel and coplanar shafts are connected by gears having teeth parallel to the axis of the shaft. This arrangement is known as

Correct Answer

[#282] The type of pair formed by two elements which are so connected that one is constrained to turn or revolve about a fixed axis of another element is known as

Correct Answer

[#283] The velocity of any point in mechanism relative to any other point on the mechanism on velocity polygon is represented by the line

Correct Answer

[#284] Which of the following property of the instantaneous center is correct?

Correct Answer

[#285] The periodic time of a compound pendulum is __________ when the distance between the point of suspension and the center of gravity is equal to the radius of gyration of the body about its center of gravity.

Correct Answer