Mechanical Engineering - Engineering Mechanics

6. 

The velocity ratio in case of an inclined plane inclined at angle θ to the horizontal and weight being pulled up the inclined plane by vertical effort is

A. sin θ
B. cos θ
C. tan θ
D. cosec θ

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

7. 

The range of projectile on a downward inclined plane is __________ the range on upward inclined plane for the same velocity of projection and angle of projection.

A. less than
B. more than
C. equal to

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

8. 

The angle of inclination of a vehicle when moving along a circular path __________ upon its mass.

A. depends
B. does not depend

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

9. 

A body of weight W is required to move up on rough inclined plane whose angle of inclination with the horizontal is α. The effort applied parallel to the plane is given by(where μ = tanφ = Coefficient of friction between the plane and the body.)

A. P = W tanα
B. P = W tan(α + φ)
C. P = W (sinα + μcosα)
D. P = W (cosα + μsinα)

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

10. 

If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is

A. 30°
B. 60°
C. 90°
D. 120°

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.