Explore topic-wise MCQs in Engineering Mechanics.

This section includes 8 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.

The magnitude of the resultant of the two vectors is always:

A. Greater than one of the vector s magnitude
B. Smaller than one of the vector s magnitude
C. Depends on the angle between them
D. Axis we choose to calculate the magnitude
Answer» D. Axis we choose to calculate the magnitude
2.

What is after taking the assumption of the direction of the force, the direction comes opposite?

A. The assumption made was wrong and the question can t be solved further
B. The assumptions are not to be taken
C. The direction is in the opposite sense, and hence the direction is known to us
D. The direction will be already given to us, no need of assuming
Answer» D. The direction will be already given to us, no need of assuming
3.

The magnitude of the unknown force can t be known. But the direction can be founded out.

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
4.

We use the method of joint to find the net force acting over the entire structure.

A. True
B. False
Answer» C.
5.

Which of the following conditions are true to make the calculations easy?
First condition: We use the method of a joint to find the forces acting over the joints in the space trusses.

A. nSecond condition: In this, we start from the joint having at least one known force and at the most two unknown forces.
B. We only see the first condition and neglect the second condition
C. We neglect the first condition and only see the second condition
D. We neglect both the conditions because calculations are possible without following the first and second conditions
E. First and second conditions are compulsory and can t be neglected
Answer» E. First and second conditions are compulsory and can t be neglected
6.

For applying the method of joint at joints the forces need to be concurrent.

A. False
B. True
Answer» C.
7.

The free body diagram of which part of the section of the truss is made to make use of method of joints?

A. Joints
B. Truss
C. The whole structure
D. The combination of joint and the whole structure
Answer» B. Truss
8.

If the whole truss is in equilibrium then all the joints which are connected to that truss is in equilibrium. This is known as:

A. Method of joints
B. Section method
C. Scalar field method
D. Vector equilibrium method
Answer» B. Section method