Mock Test: SSC JE (ME)- 9 - Mechanical Engineering MCQ

magnitude of the force

line of action of the force

nature of the force i.e. whether the force is push or pull

all of the above

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

meet at one point and their lines of action also lie on the same plane

do not meet at one point, but their lines of action lie on the same plane

bears a constant ratio to the normal reaction between the two surfaces

is independent of the area of contact, between

always acts in a direction, opposite to that in which the body tends to move

all of the above

+ 8.9 m/s²

– 8.9 m/s²

+ 9.8 m/s²

– 9.8 m/s²

every body cotinues in its state of rest or of uniform motion, in a straight line, unless it is acted upon by some external force

the rate of change of momentum is directly proportional to the impressed force, andtakes place in the same direction, in which the force acts

to every action, there is always an equal and opposite reaction

none of the above

angle of projectio

angle of inclination of the plane

both (a) and (b)

 none of these

a

b

c

d

homogeneous

Isotropic

elastic

orthotropic

a property to resist shocks

a property to withstand heavy pressure

a property to store enery without undergoing paramount deformation

an index of elasticity

πd²/4

πd³/32

πd²/16

πd³/16

maximum shear stress and minimum normal stress

maximum shear stress as well as maximum normal stress

maximum normal strews and zero shear stress

minimum normal stress and zero shear stress

the beam material is perfectly homogenous and isotropic

the beam mateial is stressed within its elastic limit

the plane sections before bending remian plane after bending

all of the above

malleability

elasticity

plasticity

ductility

the layers are subjected to maximum bendig stress

the layers are subjected to minimum bending stress

the layers are subjected to compression

the layers do not undergo any strain

elastic limit

yield stress

ultimate stress

breaking stress

Atamospheric air

Mixture of hydrogen and oxygen

Cooling fluid in a radiator

Mixture of ice, water and steam

1 and 3

2 and 3

1, 3 and 4

2 and 4

heat exchange does not take place

no work is done by expanding steam

there is no change of internal enrgy of steam

all of the above

Line , Line

Line, Point

Point, Line

None of the above

Real gas equation

Maxwell's equation

Van der waal's equation

Ideal gas equation

pressure only

absolute temperature only

pressure and volume

pressure, volume and temperature

may remain constant

always increases

may increase or decrease

always decreases

p.v = constant, if T is kept constant

v/ T = Constant, if P is kept constant

p/T = constant if v is kept constant

T/p = constant, if v is kept constant

mass transfer and entropy change are zero

entropy change and energy transfer are zero

energy transfer and mass transfer are zero

mass transfer and volume change are zero

isothermal process

adiabatic process

hyperbolic process

polytropic process

dQ = T.ds

dQ = T/ds

dQ = ds/T

None of these

1

0

– 1

10

same in both the cases

highest if T_H is decreasd

highest if T_L in increased

independent of change in T_H and T_L

Condenser

Capillary tube

Compressor

Evaporator