Second law of thermodynamics defines

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Second law of thermodynamics defines

A. Heat

B. Work

C. Internal energy

D. Entropy

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For the beam shown in the below figure, the shear force diagram between A and B is

A. A horizontal line

B. A vertical line

C. An inclined line

D. A parabolic curve

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One molecule of oxygen consists of __________ atoms of oxygen.

A. 2

B. 4

C. 8

D. 16

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When a beam is subjected to a bending moment, the strain in a layer is __________ the distance from the neutral axis.

A. Equal to

B. Directly proportional to

C. Inversely proportional to

D. Independent of

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A circular shaft fixed at, A has diameter D for half of its length and diameter D/2 over the other half, as shown in the below figure. If the rotation of B relative to A is 0.1 radian, the rotation of C relative to B will be

A. 0.4 radian

B. 0.8 radian

C. 1.6 radian

D. 3.2 radian

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The deformation of a bar under its own weight is _________ the deformation, if the same body is subjected to a direct load equal to weight of the body.

A. Equal to

B. Half

C. Double

D. Quadruple

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When both ends of a column are fixed, the effective length is

A. Its own length

B. Twice its length

C. Half its length

D. 1/√2 × its length

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A thin cylindrical shell of diameter (D) and thickness (t) is subjected to an internal pressure (p). The ratio of longitudinal strain to volumetric strain is

A. (m - 1)/ (2m - 1)

B. (2m - 1)/ (m - 1)

C. (m - 2)/ (3m - 4)

D. (m - 2)/ (5m - 4)

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The natural solid fuel is

A. Wood

B. Coke

C. Anthracite coal

D. Pulverised coal

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Which of the following is correct?

A. Gauge pressure = Absolute pressure + Atmospheric pressure

B. Absolute pressure = Gauge pressure + Atmospheric pressure

C. Absolute pressure = Gauge pressure - Atmospheric pressure

D. Atmospheric pressure = Absolute pressure + Gauge pressure

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

A. Remains constant

B. Increases

C. Decreases

D. None of these

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In the tensile test, the phenomenon of slow extension of the material, i. e. stress increasing with the time at a constant load is called

A. Creeping

B. Yielding

C. Breaking

D. Plasticity

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A material obeys hooks law up to

A. Plastic limit

B. Elastic limit

C. Yield point

D. Limit of proportionality

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When a gas is heated at constant pressure

A. Its temperature will increase

B. Its volume will increase

C. Both temperature and volume will increase

D. Neither temperature not volume will increase

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Young's modulus is defined as the ratio of

A. Volumetric stress and volumetric strain

B. Lateral stress and lateral strain

C. Longitudinal stress and longitudinal strain

D. Shear stress to shear strain

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In case of an under-reinforced beam, the depth of actual neutral axis is __________ that of the critical neutral axis.

A. Same as

B. Less than

C. Greater than

D. None of these

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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

A. Wl3 / 48EI

B. 5Wl3 / 384EI

C. Wl3 / 392EI

D. Wl3 / 384EI

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A shaft revolving at ω rad/s transmits torque (T) in Nm. The power developed is

A. T.ω watts

B. 2π. T.ω watts

C. 2π. T.ω/75 watts

D. 2π. T.ω/4500 watts

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The variables which control the physical properties of a perfect gas are

A. Pressure exerted by the gas

B. Volume occupied by the gas

C. Temperature of the gas

D. All of these

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The pressure exerted by an ideal gas is ________ of the kinetic energy of all the molecules contained in a unit volume of gas.

A. One-half

B. One-third

C. Two-third

D. Three-fourth

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If the depth is kept constant for a beam of uniform strength, then its width will vary in proportional to

A. Bending moment (i.e. M)

B. Bending moment² (i.e. M²)

C. Bending moment³ (i.e. M³)

D. Bending moment⁴ (i.e. M⁴)

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The compression ratio is the ratio of

A. Swept volume to total volume

B. Total volume to swept volume

C. Swept volume to clearance volume

D. Total volume to clearance volume

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When a body is subjected to a direct tensile stress (σx) in one plane accompanied by a simple shear stress (τxy), the maximum normal stress i

A. (σx/2) + (1/2) × √(σx² + 4 τ²xy)

B. (σx/2) - (1/2) × √(σx² + 4 τ²xy)

C. (σx/2) + (1/2) × √(σx² - 4 τ²xy)

D. (1/2) × √(σx² + 4 τ²xy)

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When a body is subjected to a direct tensile stress (σx) in one plane accompanied by a simple shear stress (τxy), the maximum shear stress is

A. (σ_x/2) + (1/2) × √(σ_x² + 4 τ²_xy)

B. (σ_x/2) - (1/2) × √(σ_x² + 4 τ²_xy)

C. (σ_x/2) + (1/2) × √(σ_x² - 4 τ²_xy)

D. (1/2) × √(σx² + 4 τ²_xy)

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A cube subjected to three mutually perpendicular stress of equal intensity p expenses a volumetric strain

A. 3p/E × (2/m - 1)

B. 3p/E × (2 - m)

C. 3p/E × (1 - 2/m)

D. E/3p × (2/m - 1)

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In a reversible adiabatic process, the ratio of T1/T2 is equal to

A. (p₂/p₁)γ - 1/ γ

B. (p₁/p₂)γ - 1/ γ

C. (v₂/v₁)γ - 1/ γ

D. (v₁/v₂)γ - 1/ γ

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When two plates are butt together and riveted with cover plates with two rows of rivets, the joint is known as

A. Lap joint

B. Butt joint

C. Single riveted single cover butt joint

D. Double riveted double cover butt joint

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When a body is subjected to biaxial stress i.e. direct stresses (σ_x) and (σ_y) in two mutually perpendicular planes accompanied by a simple shear stress (τ_xy), then minimum normal stress is

A. (σ_x + σ_y)/2 + (1/2) × √[(σ_x - σ_y)² + 4 τ²_xy]

B. (σ_x + σ_y)/2 - (1/2) × √[(σ_x - σ_y)² + 4 τ²_xy]

C. (σ_x - σ_y)/2 + (1/2) × √[(σ_x + σ_y)² + 4 τ²_xy]

D. (σ_x - σ_y)/2 - (1/2) × √[(σ_x + σ_y)² + 4 τ²_xy]

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When the gas is heated at constant pressure, the heat supplied

A. Increases the internal energy of the gas

B. Increases the temperature of the gas

C. Does some external work during expansion

D. Both (B) and (C)

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The fuel mostly used in steam boilers is

A. Brown coal

B. Peat

C. Coking bituminous coal

D. Non-coking bituminous coal

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The oxygen atom is ________ times heavier than the hydrogen atom.

A. 2

B. 8

C. 16

D. 32

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Accepted Answer

D. Entropy

Second law of thermodynamics defines

Correct Answer :

Show all Strength of Materials MCQ

Related Questions

For the beam shown in the below figure, the shear force diagram between A and B is

One molecule of oxygen consists of __________ atoms of oxygen.

When a beam is subjected to a bending moment, the strain in a layer is __________ the distance from the neutral axis.

A circular shaft fixed at, A has diameter D for half of its length and diameter D/2 over the other half, as shown in the below figure. If the rotation of B relative to A is 0.1 radian, the rotation of C relative to B will be

The deformation of a bar under its own weight is _________ the deformation, if the same body is subjected to a direct load equal to weight of the body.

When both ends of a column are fixed, the effective length is

A thin cylindrical shell of diameter (D) and thickness (t) is subjected to an internal pressure (p). The ratio of longitudinal strain to volumetric strain is

The natural solid fuel is

Which of the following is correct?

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

In the tensile test, the phenomenon of slow extension of the material, i. e. stress increasing with the time at a constant load is called

A material obeys hooks law up to

When a gas is heated at constant pressure

Young's modulus is defined as the ratio of

In case of an under-reinforced beam, the depth of actual neutral axis is __________ that of the critical neutral axis.

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

A shaft revolving at ω rad/s transmits torque (T) in Nm. The power developed is

The variables which control the physical properties of a perfect gas are

The pressure exerted by an ideal gas is ________ of the kinetic energy of all the molecules contained in a unit volume of gas.

If the depth is kept constant for a beam of uniform strength, then its width will vary in proportional to

The compression ratio is the ratio of

When a body is subjected to a direct tensile stress (σx) in one plane accompanied by a simple shear stress (τxy), the maximum normal stress i

When a body is subjected to a direct tensile stress (σx) in one plane accompanied by a simple shear stress (τxy), the maximum shear stress is

A cube subjected to three mutually perpendicular stress of equal intensity p expenses a volumetric strain

In a reversible adiabatic process, the ratio of T1/T2 is equal to

When two plates are butt together and riveted with cover plates with two rows of rivets, the joint is known as

When a body is subjected to biaxial stress i.e. direct stresses (σ_x) and (σ_y) in two mutually perpendicular planes accompanied by a simple shear stress (τ_xy), then minimum normal stress is

When the gas is heated at constant pressure, the heat supplied

The fuel mostly used in steam boilers is

The oxygen atom is ________ times heavier than the hydrogen atom.

Also checkout

Second law of thermodynamics defines

Correct Answer :

Show all Strength of Materials MCQ

Related Questions

For the beam shown in the below figure, the shear force diagram between A and B is

One molecule of oxygen consists of __________ atoms of oxygen.

When a beam is subjected to a bending moment, the strain in a layer is __________ the distance from the neutral axis.

A circular shaft fixed at, A has diameter D for half of its length and diameter D/2 over the other half, as shown in the below figure. If the rotation of B relative to A is 0.1 radian, the rotation of C relative to B will be

The deformation of a bar under its own weight is _________ the deformation, if the same body is subjected to a direct load equal to weight of the body.

When both ends of a column are fixed, the effective length is

A thin cylindrical shell of diameter (D) and thickness (t) is subjected to an internal pressure (p). The ratio of longitudinal strain to volumetric strain is

The natural solid fuel is

Which of the following is correct?

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

In the tensile test, the phenomenon of slow extension of the material, i. e. stress increasing with the time at a constant load is called

A material obeys hooks law up to

When a gas is heated at constant pressure

Young's modulus is defined as the ratio of

In case of an under-reinforced beam, the depth of actual neutral axis is __________ that of the critical neutral axis.

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

A shaft revolving at ω rad/s transmits torque (T) in Nm. The power developed is

The variables which control the physical properties of a perfect gas are

The pressure exerted by an ideal gas is ________ of the kinetic energy of all the molecules contained in a unit volume of gas.

If the depth is kept constant for a beam of uniform strength, then its width will vary in proportional to

The compression ratio is the ratio of

When a body is subjected to a direct tensile stress (σx) in one plane accompanied by a simple shear stress (τxy), the maximum normal stress i

When a body is subjected to a direct tensile stress (σx) in one plane accompanied by a simple shear stress (τxy), the maximum shear stress is

A cube subjected to three mutually perpendicular stress of equal intensity p expenses a volumetric strain

In a reversible adiabatic process, the ratio of T1/T2 is equal to

When two plates are butt together and riveted with cover plates with two rows of rivets, the joint is known as

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 minimum normal stress is

When the gas is heated at constant pressure, the heat supplied

The fuel mostly used in steam boilers is

The oxygen atom is ________ times heavier than the hydrogen atom.

Also checkout

When a body is subjected to biaxial stress i.e. direct stresses (σ_x) and (σ_y) in two mutually perpendicular planes accompanied by a simple shear stress (τ_xy), then minimum normal stress is