MCQ
3441. A redundant frame is also called- frame.
imperfect
deficient
perfect
3442. The coefficient of restitution for inelastic bodies is-
zero
between 0 & 1
one
more than one
3443. The rate of doing work is known as-
potential energy
power
kinetic energy
none of these
3444. The force, by which the body is attracted towards the center of the earth, is called-
impulsive force
momentum
weight
mass
3445. The friction experienced by a body, when at rest, is known as-
static friction
dynamic friction
limiting friction
coefficient of friction
3446. One joule is equal to-
0.1 N-m
1 N-m
100 N-m
10 N-m
3447. The minimum force required to slide a body of weight W on a rough horizontal plane is-
W sineθ
W coseθ
W tanθ
none of these
3448. The moment of inertia of a square of side a about an axis through its centre of gravity is-
a^4 /4
a^4 /8
a^4 /12
a^4 /36
3449. Which of the following is a scalar quantity?
Force
Acceleration
Speed
Velocity
3450. The friction experienced by a body, when in motion, is known as-
rolling friction
static friction
limiting friction
dynamic friction
3451. When a body falls freely under gravitational force, it possesses---- weight.
no
maximum
minimum
3452. A framed structure is imperfect, if the number of members are ---(2j-3).
equal to
less than
greater than
either b or c
3453. A force acting in the opposite direction to the motion of the body is called force of friction.
Agree
Disagree
3454. If the gravitational acceleration of any place is doubled, then the weight of a body will be-
g/2
g
2g
√2g
3455. Moment of inertia of a circular section about an axis perpendicular to the section is-
πd³/16
πd³/32
πd^4/64
πd^4/32
3456. The rate of change of displacement of a body is called
velocity
momentum
acceleration
none of these
3457. The total motion possessed by a body, is called
impulsive force
momentum
weight
mass
3458. The matter contained in a body, is called-
impulsive force
momentum
weight
mass
3459. The unit of work in SI unit is-
newton
joule
erg
kg.m
3460. Joule is the unit of-
force
energy
work
power