Engineering Mechanics MCQ Questions
1-S.I. unit of force is
(A) calorie
(B) joule
(C) kilowatt
(D) newton
2-S.I. unit of power is
(A) joule
(B) watt
(C) dyne
(D) pascal
3-Forces are said to be concurrent when they are acting
(A) in different planes
(B) in same planes
(C) at a point
(D) none of the above
4-If a number of forces are acting simultaneously at a point, it
(A) can be replaced by a single force
(B) can be replaced by a couple
(C) can be replaced by a couple and force
(D) all of the above
5-Two forces, meeting at a point, but their line of action are not in one plane, are known as
(A) concurrent and coplanar forces
(B) non-concurrent and coplanar forces
(C) concurrent and non-coplanar forces
(D) non-concurrent and non-coplanar forces
6-___ is applied while trying to turn a key into a lock.
(A) momentum
(B) impulse
(C) couple
(D) moment
7-Following is a scalar quantity.
(A) velocity
(B) acceleration
(C) momentum
(D) speed
8-Two parallel coplanar and equal forces, acting in an opposite direction, constitute a
(A) momentum
(B) impulse
(C) couple
(D) moment
9-Following is the unit of moment of inertia.
(A) kg-m
(B) kg/m
(C) kg-m2
(D) kg/m2
10-The coefficient of friction depends upon
(A) surface area in contact
(B) material of surfaces in contact
(C) nature of surface
(D) all of the above
ANSWERS:
1-(D), 2-(B), 3-(C), 4-(A), 5-(C), 6-(C), 7-(D), 8-(C), 9-(C), 10-(C)