Explore topic-wise MCQs in Engineering Mechanics.

This section includes 14 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.

If anybody is tied to three or more ropes, and then is allowed to achieve its equilibrium. Then the equilibrium achieved is achieved w.r.t what?

A. The three axis of the body
B. The ground
C. The ropes direction
D. The weight direction
Answer» C. The ropes direction
Discussion
2.

An electromagnet crane is carrying the electromagnet with the help of the three cables. But the electromagnet is not stable because of the wind. What is science behind the cause?

A. The wind is making the net force of the body equal to a non-zero value
B. The wind is making the net force of the body equal to zero value
C. The wind is making the net force of the body equal to a non-zero value but is supporting the equilibrium
D. The wind is making the net force of the body equal to zero value and supporting equilibrium
Answer» B. The wind is making the net force of the body equal to zero value
Discussion
3.

If the resolved force or the force which you get as the answer after solving the question is negative, then what does this implies?

A. The force is in the reverse direction w.r.t the direction set in the free body diagram
B. The force is not in the reverse direction w.r.t the direction set in the free body diagram
C. The force component is not possible
D. The force is possible, but in the direction perpendicular to the resultant force
Answer» B. The force is not in the reverse direction w.r.t the direction set in the free body diagram
Discussion
4.

If solving the question in 3D calculations is difficult, then use the 2D system and then equate the total net force to zero.

A. True
B. False
Answer» B. False
Discussion
5.

When the body is in equilibrium then which of the following is true?

A. We equate all the components of the forces acting on the body equal to their resultant vector’s magnitude
B. We equate all the components of the forces acting on the body equal to their resultant vector’s magnitude square
C. We equate all the components of the forces acting on the body equal to their resultant vector’s magnitude square root
D. We equate all the components of the forces acting on the body equal to zero
Answer» E.
Discussion
6.

∑Fx=0, ∑Fy=0 and ∑Fz=0 are vector equations.

A. True
B. False
Answer» C.
Discussion
7.

Determine the value of the q, parallel to the z-axis. That is the point of intersection of the projections of the points A, B and C parallel to the xy plane. With the distance between the tri-section point and the points A, B and C be equal to 0.6m.

A. 51.9cm
B. 51.9mm
C. 51.9m
D. 5.19mmView Answer
Answer» B. 51.9mm
Discussion
8.

Find the tension in the cable AC.

A. 23.6N
B. 55N
C. 89N
D. -29NView Answer
Answer» B. 55N
Discussion
9.

In the diagram given below, coordinates of D is (1, -2, 2), C (-2, 0, 0) and B are as shown. The dark region is the cables holding the weight of 600N at origin. Find the tension in the AB section.

A. 900N
B. 693N
C. 646N
D. 0NView Answer
Answer» C. 646N
Discussion
10.

In the diagram given below, coordinates of D is (1, -2, 2), C (-2, 0, 0) and B are as shown. The dark region is the cables holding the weight of 600N at the origin. Find the tension in the AD section.

A. 900N
B. 693N
C. 646N
D. 0NView Answer
Answer» B. 693N
Discussion
11.

We first make equilibrium equations and then the free body diagram and then solve the question.

A. True
B. False
Answer» C.
Discussion
12.

6N?$
A. 55N
B. 89N
C. -29N
Answer» B. 89N
Discussion
13.

900N

A. 693N
B. 646N
C. 0N
Answer» B. 646N
Discussion
14.

What is not the condition for the equilibrium in three dimensional system of axis?

A. ‚àëFx=0
B. ‚àëFy=0
C. ‚àëFz=0
D. ∑F≠0
Answer» E.
Discussion