Explore topic-wise MCQs in Engineering Mechanics.

This section includes 19 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 x coordinate of centroid of the line in the shape of a parabola as shown.

A. 0.410m
B. 1.410m
C. 2.410m
D. 0.10mView Answer
Answer» B. 1.410m
Discussion
2.

Which statement is right for force acting by the small particles of the body having it’s vector form as = Ai + Bj + Ck?

A. In rectangular components representation of any vector we have vector F = Ai + Bj + Ck
B. In rectangular components representation of any vector we have vector F = Ax + By + Cz
C. In rectangular components representation of any vector we have vector F = Fx + Fy + Fz
D. In rectangular components representation of any vector we have vector F = Fi + Fj + Fk
Answer» D. In rectangular components representation of any vector we have vector F = Fi + Fj + Fk
Discussion
3.

We use sometimes the measures to know the direction of moment. It is done by right handed coordinate system. Which is right about it(consider the mentioned axis to be positive)?

A. Thumb is z-axis, fingers curled from x-axis to y-axis
B. Thumb is x-axis, fingers curled from z-axis to y-axis
C. Thumb is y-axis, fingers curled from x-axis to z-axis
D. Thumb is z-axis, fingers curled from y-axis to x-axis
E. ?a) Thumb is z-axis, fingers curled from x-axis to y-axisb) Thumb is x-axis, fingers curled from z-axis to y-axisc) Thumb is y-axis, fingers curled from x-axis to z-axisd) Thumb is z-axis, fingers curled from y-axis to x-axis
Answer» B. Thumb is x-axis, fingers curled from z-axis to y-axis
Discussion
4.

Volume is best given by ___________

A. Product of mass and density
B. Ratio of mass to density
C. Addition of mass and density
D. Subtraction of mass and density
Answer» C. Addition of mass and density
Discussion
5.

Determine the y coordinate of centroid of the line in the shape of parabola as shown.

A. 0.514m
B. 1.410m
C. 2.410m
D. 0.10mView Answer
Answer» B. 1.410m
Discussion
6.

The centre of volume is the ratio of ________ to _________

A. The product of centroid and mass to the total weight
B. The addition of centroid and weight to the total weight
C. The subtraction of centroid and volume to the total weight
D. The product of centroid and volume to the total volume
Answer» E.
Discussion
7.

A body’s all small particles have a small weight which is being applied by them to the body, which adds up to the total weight of the body.

A. True
B. False
Answer» B. False
Discussion
8.

514m$

A. 1.410m
B. 2.410m
C. 0.10m
Answer» B. 2.410m
Discussion
9.

If the force vector F acting along the centre of gravity is having its x-axis component being equal to Z N, y-axis component be X N and z-axis component be Y N then vector F is best represented by?

A. Xi + Yj + Zk
B. Yi + Xj + Zk
C. Zi + Yj + Xk
D. Zi + Xj + Yk
Answer» B. Yi + Xj + Zk
Discussion
10.

If A is any vector with Ai + Bj + Ck then what is the y-axis component of the vector if we are using the vector math to calculate the centre of gravity?

A. B units
B. A units
C. C units
D. Square root of a sum of squares of the three, i.e. A, B and C
Answer» D. Square root of a sum of squares of the three, i.e. A, B and C
Discussion
11.

We use sometimes the measures to know the direction of moment. It is done by right handed coordinate system. Which is right about it(consider the mentioned axis to be positive)?

A. Thumb is z-axis, fingers curled from x-axis to y-axis
B. Thumb is x-axis, fingers curled from z-axis to y-axis
C. Thumb is y-axis, fingers curled from x-axis to z-axis
D. Thumb is z-axis, fingers curled from y-axis to x-axis
Answer» E.
Discussion
12.

Volume_is_best_given_by____________

A. Product of mass and density
B. Ratio of mass to density
C. Addition of mass and density
D. Subtraction of mass and density
Answer» B. Ratio of mass to density
Discussion
13.

The centre of mass is the ratio of ________ to _________

A. The product of centroid and mass to the total weight
B. The addition of centroid and weight to the total weight
C. The subtraction of centroid and weight to the total weight
D. The product of centroid and mass to the total mass
Answer» E.
Discussion
14.

The x axis coordinate and the y axis coordinate of the centre of gravity are having different types of calculations to calculate them.

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

The centre of gravity is the ratio of ________ to _________

A. The product of centroid and weight to the total weight
B. The addition of centroid and weight to the total weight
C. The subtraction of centroid and weight to the total weight
D. The product of centroid and weight to the total mass
Answer» B. The addition of centroid and weight to the total weight
Discussion
16.

The total of all the weights of small particles adds up to give the total body weight. This weight is the force vector which is being passed by ________

A. Axis of rotation
B. Axis of rolling
C. Centre of Gravity
D. Centre of mass
Answer» D. Centre of mass
Discussion
17.

The all small weights that are being applied by all the infinite particles of the body act __________ to each other.

A. Parallel
B. Perpendicular
C. Collinear
D. Divergent
Answer» B. Perpendicular
Discussion
18.

A body’s all small particles have a small weight which is being applied by them to the body, which adds up to the total weight of the body.$

A. True
B. False
Answer» B. False
Discussion
19.

A body is consisted of __________ number of particles.

A. Infinite
B. Finite
C. Hundreds
D. Thousands
Answer» B. Finite
Discussion