What is the correct answer?

4

# The bending equation is

M/I = σ/y = E/R

T/J = τ/R = Cθ/l

M/R = T/J = Cθ/l

T/l= τ/J = R/Cθ

### Correct Answer :

A. M/I = σ/y = E/R

### Related Questions

What is the correct answer?

4

# The shear force at the centre of a simply supported beam with a gradually varying load from zero at both ends to w per metre at the centre, is

Zero

wl/4

wl/2

wl²/2

What is the correct answer?

4

# The efficiency of a gas turbine is given by

(Net work output)/(Workdone by the turbine)

(Net work output)/(Heat supplied)

(Actual temperature drop)/(Isentropic temperature drop)

(Isentropic increase in temperature)/(Actual increase in temperature)

What is the correct answer?

4

# In closed cycle gas turbine, the air is compressed

Isothermally

Isentropically

Polytropically

None of these

What is the correct answer?

4

# The ratio of the largest load in a test to the original cross-sectional area of the test piece is called

Elastic limit

Yield stress

Ultimate stress

Breaking stress

What is the correct answer?

4

# When a rectangular beam is loaded transversely, the maximum compressive stress is developed on the

Top layer

Bottom layer

Neutral axis

Every cross-section

What is the correct answer?

4

# According to kinetic theory of gases, the velocity of molecules __________ with the increase in temperature.

Remains constant

Increases

Decreases

None of these

What is the correct answer?

4

# Which of the following is correct?

Absolute pressure = Gauge pressure + Atmospheric pressure

Gauge pressure = Absolute pressure + Atmospheric pressure

Atmospheric pressure = Absolute pressure + Gauge pressure

Absolute pressure = Gauge pressure - Atmospheric pressure

What is the correct answer?

4

# The point of contra flexure is a point where

Shear force changes sign

Shear force is maximum

Bending moment changes sign

Bending moment is maximum

What is the correct answer?

4

# The ratio of specific heat at constant pressure (cp) and specific heat at constant volume (cv) is always __________ one.

Equal to

Less than

Greater than

None of these

What is the correct answer?

4

# One kg of carbon monoxide requires __________ kg of oxygen to produce 11/7 kg of carbon dioxide gas.

4/7

11/4

9/7

All of these

What is the correct answer?

4

# A composite bar made up of steel and copper bars of equal lengths are heated through 100°C. The stresses developed shall be

Tensile in both the material

Tensile in steel and compressive in copper

Compressive in steel and tensile in copper

Compressive in both the materials

What is the correct answer?

4

# When a body is subjected to biaxial stress i.e. direct stresses (σx) and (σy) in two mutually perpendicular planes accompanied by a simple shear stress (τxy), then maximum normal stress is

x + σy)/2 + (1/2) × √[(σx - σy)² + 4 τ²xy]

x + σy)/2 - (1/2) × √[(σx - σy)² + 4 τ²xy]

x - σy)/2 + (1/2) × √[(σx + σy)² + 4 τ²xy]

x - σy)/2 - (1/2) × √[(σx + σy)² + 4 τ²xy]

What is the correct answer?

4

# The sum of internal energy (U) and the product of pressure and volume (p.v) is known as

Workdone

Entropy

Enthalpy

None of these

What is the correct answer?

4

# The specific heat of water is

1.817

2512

4.187

None of these

What is the correct answer?

4

# For a beam, as shown in the below figure, when the load W is applied in the centre of the beam, the maximum deflection is

Wl3 / 48EI

5Wl3 / 384EI

Wl3 / 392EI

Wl3 / 384EI

What is the correct answer?

4

# The entropy of water at 0°C is assumed to be

1

0

-1

10

What is the correct answer?

4

# Resilience of a material is considered when it is subjected to

Frequent heat treatment

Fatigue

Creep

What is the correct answer?

4

# A continuous beam is one which is

Fixed at both ends

Fixed at one end and free at the other end

Supported on more than two supports

Extending beyond the supports

What is the correct answer?

4

# In an extensive property of a thermodynamic system

Extensive heat is transferred

Extensive work is done

Extensive energy is utilised

None of these

What is the correct answer?

4

# One kg of carbon requires 4/3 kg of oxygen and produces __________ kg of carbon monoxide gas.

8/3

11/3

11/7

7/3

What is the correct answer?

4

# The weakest section of a diamond riveting is the section which passes through

The first row

The second row

The central row

One rivet hole of the end row

What is the correct answer?

4

# In an irreversible process, there is a

Loss of heat

No loss of heat

Gain of heat

No gain of heat

What is the correct answer?

4

# The hyperbolic process is governed by

Boyle's law

Charles' law

Gay-Lussac law

What is the correct answer?

4

# The thermodynamic difference between a Rankine cycle working with saturated steam and the Carnot cycle is that

Carnot cycle can't work with saturated steam

Heat is supplied to water at temperature below the maximum temperature of the cycle

A Rankine cycle receives heat at two places

Rankine cycle is hypothetical

What is the correct answer?

4

# One molecule of oxygen is __________ times heavier than the hydrogen atom.

12

14

16

32

What is the correct answer?

4

# The property of a material which allows it to be drawn into a smaller section is called

Plasticity

Ductility

Elasticity

Malleability

What is the correct answer?

4

# Otto cycle consists of

Two constant volume and two isentropic processes

Two constant pressure and two isentropic processes

Two constant volume and two isothermal processes

One constant pressure, one constant volume and two isentropic processes

What is the correct answer?

4

# Which is the incorrect statement about Carnot cycle?

It is used as the alternate standard of comparison of all heat engines.

All the heat engines are based on Carnot cycle.

It provides concept of maximising work output between the two temperature limits.

All of the above

What is the correct answer?

4

# In a belt drive, the pulley diameter is doubled, the belt tension and pulley width remaining same. The changes required in key will be

Increase key length

Increase key depth

Increase key width

Double all the dimensions

What is the correct answer?

4

# The strain energy stored in a solid circular shaft subjected to shear stress (τ), is: (Where G = Modulus of rigidity for the shaft material)

τ²/ 2G × Volume of shaft

τ/ 2G × Volume of shaft

τ²/ 4G × Volume of shaft

τ/ 4G × Volume of shaft