Explore topic-wise MCQs in Engineering Mechanics.

This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Mechanics knowledge and support exam preparation. Choose a topic below to get started.

1.

Determine the minimum amount of the force P required to remove the wedge shown. Take the value of the coefficient of friction to be 0.3. Assume that the block doesn’t slip at C.

A. 1.15 KN
B. 2.15 KN
C. 3.15 KN
D. 4.15 KN
Answer» B. 2.15 KN
Discussion
2.

In the simplification of the forces applied in the wedges net force acts at the ___________ of the loading body.

A. Centroid
B. The centre axis
C. The corner
D. The base
Answer» B. The centre axis
Discussion
3.

What is j.j?

A. 0
B. 1
C. -1
D. ∞
Answer» C. -1
Discussion
4.

In the free body diagrams involving the wedges we have use of vector math, so for two vectors A and B, what is A.B (if they have angle α between them)?a) |A||B| cosαb) |A||B|c) √(|A||B

A. |A||B| cosα
B. |A||B|
C. √(|A||B|) cosα
D. |A||B| sinα
Answer» B. |A||B|
Discussion
5.

Determine the normal force at B in the wedge shown. Take the value of the coefficient of friction to be 0.3. Assume that the block doesn’t slip at C.

A. 2452 N
B. 215 KN
C. 3150 N
D. 415 KNView Answer
Answer» B. 215 KN
Discussion
6.

Which one is not the condition for the equilibrium in free body diagram for calculation of the normal forces along the body kept over the wedge, consider all forces to be straight and linear?

A. ∑Fx=0
B. ∑Fy=0
C. ∑Fz=0
D. ∑F≠0
Answer» E.
Discussion
7.

In the free body diagrams involving the wedges we have use of vector math, so for two vectors A and B, what is A.B (if they have angle α between them)?$#

A. |A||B| cosα
B. |A||B|
C. √(|A||B|) cosα
D. |A||B| sinα
Answer» D. |A||B| sin‚âà√≠¬¨¬±
Discussion
8.

2452_N$

A. 215 KN
B. 3150 N
C. 415 KN
Answer» C. 415 KN
Discussion
9.

Sometimes in the calculations involving the wedges, there are situations when there is a toppling effect on the body. In that, if the net moment of the body is zero that means the distance between the force and the rotational axis is zero.

A. The first part of the statement is false and other part is true
B. The first part of the statement is false and other part is false too
C. The first part of the statement is true and other part is false
D. The first part of the statement is true and other part is true too
Answer» B. The first part of the statement is false and other part is false too
Discussion
10.

What_is_j.j?

A. 0
B. 1
C. -1
D. ‚àû
Answer» B. 1
Discussion
11.

When does the two wedge system is termed as self-locking system?

A. If friction forces hold the block in plane
B. If friction forces doesn’t hold the block in plane
C. If friction forces hold the block in phase
D. If friction forces doesn’t hold the block in phase
Answer» B. If friction forces doesn‚Äö√Ñ√∂‚àö√ë‚àö¬•t hold the block in plane
Discussion
12.

The coefficient of friction between the body being slided over the wedge and the wedge surface is generally determined by ____________

A. Written over the Body
B. Experiments
C. Weighing the body
D. Measuring length of the body
Answer» C. Weighing the body
Discussion
13.

The normal force exerted by the surface of the wedge is normal to the surface of the ________

A. Base of the wedge
B. Base of the body residing over it
C. Base of the body just neighbour to the wedge
D. Earth’s surface
Answer» C. Base of the body just neighbour to the wedge
Discussion
14.

The blocks of heavy weights are being able to lift from the help of the wedges.

A. True
B. False
Answer» B. False
Discussion
15.

Wedges are used to transfer heavy loads.

A. True
B. False
Answer» B. False
Discussion
16.

A ____________ is a simple machine that is used as to transfer applied forces into much larger forces.

A. Wedge
B. Beam
C. Pillar
D. Bridges
Answer» B. Beam
Discussion