A reversible machine
A non-reversible machine
An ideal machine
None of these
B. A non-reversible machine
Moment of inertia
Centre of gravity
Centre of percussion
Centre of mass
bh3/4
bh3/8
bh3/12
bh3/36
Rolling friction
Dynamic friction
Limiting friction
Static friction
One point
One plane
Different planes
Perpendicular planes
Lie on the same line
Meet at one point
Meet on the same plane
None of these
Meet at one point, but their lines of action do not lie on the same plane
Do not meet at one point and their lines of action do not lie on the same plane
Do not meet at one point but their lines of action lie on the same plane
None of the above
P = mW - C
P = m/W + C
P = mW + C
P = C - mW
bh3/4
bh3/8
bh3/12
bh3/36
r/2
r/A
r/3
0.134 r
Equal to
Less than
Greater than
None of these
0.1 N-m
1 N-m
10 N-m
100 N-m
Purely translation
Purely rotational
Combined translation and rotational
None of these
0.5 cm
1.0 cm
1.5 cm
2.5 cm
0.5r
0.6 r
0.7 r
0.8 r
Equal to the moment of the couple
Constant
Both of above are correct
Both of above are wrong
Zeroth order
First order
Second order
Third order
Lie
Do not lie
Either A or B
None of these
1 + m
1 - m
1 / m
m
20 kg, -ve sense
20 kg, + ve sense
10 kg, + ve sense
10 kg, -ve sense
Translatory
Rotary
Circular
Translatory as well as rotary
h [(2a + b)/(a + b)]
(h/2) [(2a + b)/(a + b)]
(h/3) [(2a + b)/(a + b)]
(h/3) [(a + b)/(2a + b)]
g. cos² β/2u². sin (α + β). cos α
2u². sin (α + β). cos α/g. cos² β
g. cos² β/2u². sin (α - β). cos α
2u². sin (α - β). cos α/g. cos² β
Momentum and impulse
Torque and energy
Torque and work
Moment of a force and angular momentum.
Weight
Velocity
Acceleration
Force
Proportional to normal load between the surfaces
Dependent on the materials of contact surface
Proportional to velocity of sliding
Independent of the area of contact surfaces
If a system of coplanar forces is in equilibrium, then their algebraic sum is zero
If a system of coplanar forces is in equilibrium, then the algebraic sum of their moments about any point in their plane is zero
The algebraic sum of the moments of any two forces about any point is equal to moment of the resultant about the same point
Positive and negative couples can be balanced
Equal to one
Less than one
Greater than one
None of these
Half
Equal to
Double
None of these
Change its motion
Balance the forces, already acting on it
Give rise to the internal stresses in it
All of these
Not a replace them by a single force
To replace them by a single force
To replace them by a single force through C.G.
To replace them by a couple