4

# A material obeys hooks law up to

Plastic limit

Elastic limit

Yield point

Limit of proportionality

B. Elastic limit

4

l/δl

δl/l

l.δl

l + δl

4

30°

45°

90°

4

2.1 × 10⁵ kg/cm²

2.1 × 10⁶ kg/cm²

2.1 × 10⁷ kg/cm²

0.1 × 10⁶ kg/cm²

4

800 K

1000 K

1200 K

1400 K

4

# For a perfect gas, according to Boyle's law (where p = Absolute pressure, v = Volume, and T = Absolute temperature)

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

4

# The moment of resistance of a balanced reinforced concrete beam is based on the stresses in

Steel only

Concrete only

Steel and concrete both

None of these

4

# The intensity of stress which causes unit strain is called

Unit mass

Modulus of rigidity

Bulk modulus

Modulus of Elasticity

4

1/27th

1/93th

1/173th

1/273th

4

# The temperature at which the volume of a gas becomes zero is called

Absolute scale of temperature

Absolute zero temperature

Absolute temperature

None of these

4

Greater than

Less than

Equal to

None of these

4

Heat

Work

Internal energy

Entropy

4

# According to Avogadro's law, the density of any two gases is __________ their molecular masses, if the gases are at the same temperature and pressure.

Equal to

Directly proportional to

Inversely proportional to

None of these

4

Shear modulus

Section modulus

Polar modulus

None of these

4

πd²/4

πd²/16

πd3/16

πd3/32

4

# Reversed Joule cycle is known as

Carnot cycle

Bell-Coleman cycle

Rankine cycle

Stirling cycle

4

# One kg of carbon monoxide requires 4/7 kg of oxygen and produces

11/3 kg of carbon dioxide gas

7/3 kg of carbon monoxide gas

11/7 kg of carbon dioxide gas

8/3 kg of carbon monoxide gas

4

Wl3 / 48EI

5Wl3 / 384EI

Wl3 / 392EI

Wl3 / 384EI

4

Straight line

Parabolic

Elliptical

Cubic

4

Remains constant

Increases

Decreases

None of these

4

Vapour

Perfect gas

Air

Steam

4

# The compression ratio is the ratio of

Swept volume to total volume

Total volume to swept volume

Swept volume to clearance volume

Total volume to clearance volume

4

Equal to

Less than

Greater than

None of these

4

# When the expansion or compression takes place according to the law pvn = C, the process is known as

Isothermal process

Hyperbolic process

Polytropic process

4

Enthalpy

Internal energy

Entropy

External energy

4

# The value of shear stress which is induced in the shaft due to the applied couple varies

From maximum at the centre to zero at the circumference

From zero at the centre to maximum at the circumference

From maximum at the centre to minimum at the circumference

From minimum at the centre to maximum at the circumference

4

# The shear force diagram for a simply supported beam carrying a uniformly distributed load of w per unit length, consists of

One right angled triangle

Two right angled triangles

One equilateral triangle

Two equilateral triangles

4

Same as

Less than

Greater than

None of these

4

# Hooke's law holds good up to

Yield point

Limit of proportionality

Breaking point

Elastic limit

4

Same

Double

Half

Four times