# Multiple Choice Questions (MCQ) on Applied Mechanics

Multiple Choice Questions (MCQ) on Applied Mechanics

1-SI unit of force is

(A) Pound

(B) Newton

(C) Dyne

(D) Joule

2-The process of finding out the resultant force is known as

(A) Superposition of forces

(C) Resolution of forces

(D) Composition of forces

3-The resultant of two forces which are acting at an angle θ is

(A) (P2-Q2+2PQCosθ)1/2

(B) (P2+Q2+2PQCos θ)1/2

(C) (P2-Q2+2PQSinθ)1/2

(D) (P2+Q2+2PQSinθ)1/2

4-The resultant of two forces P and Q acting along the same straight line and in same direction is

(A) 2P+Q

(B) P+2Q

(C) P+Q

(D) P-Q

5-The resultant of two equal forces P making an angle 2θ is given by

(A) 2Psinθ

(B) 2Pcosθ

(C) 2Ptanθ

(D) 2Pcotθ

6-Following are the angles between two forces when the resultant is maximum and minimum, is

(A) 90° and 0°

(B) 0° and 90°

(C) 180° and 0°

(D) 0° and 180°

7-The resultant for a number of forces acting at a point, is given by

(A) (ΣV)2-(ΣH)2

(B) (ΣV)2+(ΣH)2

(C) [(ΣV)2-(ΣH)2]1/2

(D) [(ΣV)2+(ΣH)2]1/2

8-The point, at which the whole weight of the body may be considered to act, is known as

(A) Centre of mass

(B) Centre of curvature

(C) Centre of gravity

(D) Moment of Inertia

9-The centre of gravity of a right circular cone, measured along the vertical axis is

(A) 3H/2

(B) 3H/4

(C) H/4

(D) H/3

‘H’ is height of axis of right circular cone

10-The SI unit of work is

(A) Joule

(B) Pound

(C) Watt

(D) Newton