MCQ Questions and Answers on Theory of Machines

Q.

At precision positions in function generation problem

A. Generated function always agree with the desired function

B. Generated function never agree with the desired function

C. Generated function may agree with the desired function

D. Precision position does not relate the generated function and desired function

Discuss

Answer : Option:- A

Explanation :

Discuss here! No Explaination Available for These Question.

Q.

Herring-bone gears are also known as

A. Double spur Gears

B. Double helical gear

C. Double spiral gears

D. Hypoid gears

Discuss

Answer : Option:- B

Explanation :

Discuss here! No Explaination Available for These Question.

Q.

Which of the following variator is also known as Wulfel-Kopp tourator?

A. Cone variator with spheres

B. Spheroid variator

C. PIV Drive

D. Face plate variator

Discuss

Answer : Option:- A

Explanation :

Discuss here! No Explaination Available for These Question.

Q.

Throw of a cam is the maximum distance of the follower from

A. Base circle

B. Pitch circle

C. Root circle

D. Prime circle

Discuss

Answer : Option:- A

Explanation :

Discuss here! No Explaination Available for These Question.

Q.

The mechanism used in a shaping machine is

A. a closed 4-bar chain having 4 revolute pairs

B. a closed 6-bar chain having 6 revolute pairs

C. a closed 4-bar chain having 2 revolute and 2 sliding pairs

D. an inversion of the single slider-crank chain

Discuss

Answer : Option:- D

Explanation :

Discuss here! No Explaination Available for These Question.

Q.

The number of degrees of freedom of a planar linkage with 8 links and 9 simple revolute joints is

A. 1

B. 2

C. 3

D. 4

Discuss

Answer : Option:- C

Explanation :

Given:
n=8, j=9
The degree of freedom is given by,
DOF= 3(n-1) - 2j
DOF= 3(8-1) - 2*9
DOF= 3 --(ans)

Q.

The number of inversions for a slider crank mechanism is

A. 6

B. 5

C. 4

D. 3

Discuss

Answer : Option:- C

Explanation :

There are four kinematic links in the slider crank mechanism, therefore, the number of inversions is also four.

Q.

A planar mechanism has 8 links and 10 rotary joints. The number of degrees of freedom of the mechanism using Gruebler’s criterion is ______.

A. 0

B. 1

C. 2

D. 3

Discuss

Answer : Option:- B

Explanation :

Given:\r\n n=8\r\n j=10\r\nThe DOF is fiven by,\r\nDOF= 3(n - 1) - 2j\r\nDOF= 3(8-1) - 2*10\r\nDOF= 1

Q.

Mobility of a statically indeterminate structure is

A. ≤ −1

B. 0

C. 1

D. ≥ 2

Discuss

Answer : Option:- A

Explanation :

For determinate structures, mobility is zero, and for statistically indeterminate structures mobility is less than −1.

Q.

Tooth interference in an external involute spur gear pair can be reduced by

A. decreasing the center distance between gear pair

B. decreasing the module

C. decreasing the pressure angle

D. increasing the number of gear teeth

Discuss

Answer : Option:- D

Explanation :

Increasing the number of teeth will make available involute profile teeth in contacts.

MCQ Questions and Answers on Theory of Machines

Q. At precision positions in function generation problem

Q. Herring-bone gears are also known as

Q. Which of the following variator is also known as Wulfel-Kopp tourator?

Q. Throw of a cam is the maximum distance of the follower from

Q. The mechanism used in a shaping machine is

Q. The number of degrees of freedom of a planar linkage with 8 links and 9 simple revolute joints is

Q. The number of inversions for a slider crank mechanism is

Q. A planar mechanism has 8 links and 10 rotary joints. The number of degrees of freedom of the mechanism using Gruebler’s criterion is ______.

Q. Mobility of a statically indeterminate structure is

Q. Tooth interference in an external involute spur gear pair can be reduced by

Q.

At precision positions in function generation problem

Q.

Herring-bone gears are also known as

Q.

Which of the following variator is also known as Wulfel-Kopp tourator?

Q.

Throw of a cam is the maximum distance of the follower from

Q.

The mechanism used in a shaping machine is

Q.

The number of degrees of freedom of a planar linkage with 8 links and 9 simple revolute joints is

Q.

The number of inversions for a slider crank mechanism is

Q.

A planar mechanism has 8 links and 10 rotary joints. The number of degrees of freedom of the mechanism using Gruebler’s criterion is ______.

Q.

Mobility of a statically indeterminate structure is

Q.

Tooth interference in an external involute spur gear pair can be reduced by