g sinθ
g cosθ
g tanθ
None of these
A. g sinθ
Three forces acting at a point will be in equilibrium
Three forces acting at a point can be represented by a triangle, each side being proportional to force
If three forces acting upon a particle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium
If three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two
mr2/2
mr2/4
mr2/6
mr2/8
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
Two members with unknown forces of the frame
Three members with unknown forces of the frame
Four members with unknown forces of the frame
Three members with known forces of the frame
Mechanical advantage is greater than velocity ratio
Mechanical advantage is equal to velocity ratio
Mechanical advantage is less than velocity ratio
Mechanical advantage is unity
20 N
40 N
120 N
None of these
g/2
g
√2.g
2g
t = 2u. sinα/g
t = 2u. cosα/g
t = 2u. tanα/g
t = 2u/g.sinα
Second moment of force
Second moment of area
Second moment of mass
All of these
a = α/ r
a = α.r
a = r / α
None of these
1/2
2/3
3/2
2/4
h/kG
h2/kG
kG2/h
h × kG
If any number of forces acting at a point can be represented by the sides of a polygon taken in order, then the forces are in equilibrium
If any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon, then the forces are in equilibrium
If a polygon representing forces acting at a point is closed then forces are in equilibrium
If any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon taken in order, then the forces are in equilibrium
Direction of the axis of rotation
Magnitude of angular displacement
Sense of angular displacement
All of these
ω
ωr
ω2r
ω/r
a4/4
a4/8
a4/12
a4/36
kW (kilowatt)
hp (horse power)
kcal/sec
kcal/kg sec
Magnitude
Direction
Position or line of action
All of the above
g (m1 - m2)/(m1 + m2)
2g (m1 - m2)/(m1 + m2)
g (m1 + m2)/(m1 - m2)
2g (m1 + m2)/(m1 - m2)
Non-equilibrium
Partial equilibrium
Full equilibrium
Unpredictable
Limiting friction
Sliding friction
Rolling friction
Kinematic friction
Same at every point on its line of action
Different at different points on its line of action
Minimum, if it acts at the centre of gravity of the body
Maximum, if it acts at the centre of gravity of the body
[m₁ m₂/2(m₁ + m₂)] (u₁ - u₂)²
[2(m₁ + m₂)/m₁ m₂] (u₁ - u₂)²
[m₁ m₂/2(m₁ + m₂)] (u₁² - u₂²)
[2(m₁ + m₂)/m₁ m₂] (u₁² - u₂²)
A reversible machine
A non-reversible machine
An ideal machine
None of these
ω/r
ω.r
ω2/r
ω2.r
Less than
Equal to
More than
None of these
D/(D - d)
D/(D + d)
2D/(D - d)
2D/(D + d)
One point
One plane
Different planes
Perpendicular planes
Static friction
Dynamic friction
Limiting friction
Coefficient of friction
30°
60°
90°
120°