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

Question

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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If the slenderness ratio for a column is 100, then it is said to be a _________ column.

A. Long

B. Medium

C. Short

D. None of these

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The property of a material by virtue of which a body returns to its original, shape after removal of the load is called

A. Plasticity

B. Elasticity

C. Ductility

D. Malleability

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The heating of gas at constant volume is governed by

A. Boyle's law

B. Charles' law

C. Gay-Lussac law

D. Avogadro's law

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

A. Workdone

B. Entropy

C. Enthalpy

D. None of these

Discuss this answer

The specific heat of water is

A. 1.817

B. 2512

C. 4.187

D. None of these

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Stirling and Ericsson cycles are

A. Reversible cycles

B. Irreversible cycles

C. Semi-reversible cycles

D. Quasi-static cycles

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The value of Poisson's ratio for steel is between

A. 0.01 to 0.1

B. 0.23 to 0.27

C. 0.25 to 0.33

D. 0.4 to 0.6

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In a tensile test on mild steel specimen, the breaking stress as compared to ultimate tensile stress is

A. More

B. Less

C. Same

D. More/less depending on composition

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The pull required to tear off the plate per pitch length is (where p = Pitch of rivets, t = Thickness of plates, and σt, τ and σc = Permissible tensile, shearing and crushing stresses respectively)

A. (p - 2d) t × σ_c

B. (p - d) t × τ

C. (p - d) t × σ_t

D. (2p - d) t × σ_t

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Otto cycle is also known as

A. Constant pressure cycle

B. Constant volume cycle

C. Constant temperature cycle

D. Constant temperature and pressure cycle

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In order to prevent crushing of masonry at the base of the dam, the maximum stress should be __________ the permissible stress of the soil.

A. Equal to

B. Less than

C. More than

D. None of these

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A process, in which the gas is heated or expanded in such a way that the product of its pressure and volume remains constant, is called

A. Isothermal process

B. Hyperbolic process

C. Adiabatic process

D. Polytropic process

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The processes occuring in open system which permit the transfer of mass to and from the system, are known as

A. Flow processes

B. Non-flow processes

C. Adiabatic processes

D. None of these

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The total strain energy stored in a body is termed a

A. Resilience

B. Proof resilience

C. Modulus of resilience

D. Toughness

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

A. Elastic limit

B. Yield stress

C. Ultimate stress

D. Breaking stress

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A cantilever beam is one which is

A. Fixed at both ends

B. Fixed at one end and free at the other end

C. Supported at its ends

D. Supported on more than two supports

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The heat flows from a cold body to a hot body with the aid of an external source. This statement is given by

A. Kelvin

B. Joule

C. Clausis

D. Gay-Lussac

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Volumetric strain for a rectangular specimen of length l, breadth b and thickness t subjected to a pull of P is given by

A. e (1 - 2m)

B. e (1 - 2/m)

C. e (m - 2)

D. e (2/m - 1)

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When a gas is heated at constant volume

A. Its temperature will increase

B. Its pressure will increase

C. Both temperature and pressure will increase

D. Neither temperature nor pressure will increase

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The value of 1 mm of Hg is equal to

A. 1.333 N/m²

B. 13.33 N/m²

C. 133.3 N/m²

D. 1333 N/m²

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The efficiency of the dual combustion cycle for the same compression ratio is __________ Diesel cycle.

A. Greater than

B. Less than

C. Equal to

D. None of these

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During a tensile test on a specimen of 1 cm cross-section, maximum load observed was 8 tonnes and area of cross-section at neck was 0.5 cm². Ultimate tensile strength of specimen is

A. 4 tonnes/ cm²

B. 8 tonnes/ cm²

C. 16 tonnes/ cm²

D. 22 tonnes/ cm²

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Workdone during adiabatic expansion is given by (where p₁ v₁, T₁ = Pressure, volume and temperature for the initial condition of gas, p_2, v₂, T₂ = Corresponding values for the final condition of gas, R = Gas constant, and γ = Ratio of specific heats)

A. (p₁ v₁ - p₂ v₂)/(γ - 1)

B. [m R (T₁ - T₂)] /(γ - 1)

C. [m R T₁/(γ - 1)][1 - (p₂ v₂ /p₁ v₁)]

D. All of these

Discuss this answer

The atomic mass of nitrogen is __________ oxygen.

A. Equal to

B. Less than

C. More than

D. None of these

Discuss this answer

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

A. 8/3

B. 11/3

C. 11/7

D. 7/3

Discuss this answer

The ultimate tensile stress of mild steel compared to ultimate compressive stress is

A. Same

B. More

C. Less

D. Unpredictable

Discuss this answer

The torque transmitted by a solid shaft of diameter (D) is (where τ = Maximum allowable shear stress)

A. π /4 × τ × D³

B. π /16 × τ × D³

C. π /32 × τ × D³

D. π /64 × τ × D³

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The bending equation is

A. M/I = σ/y = E/R

B. T/J = τ/R = Cθ/l

C. M/R = T/J = Cθ/l

D. T/l= τ/J = R/Cθ

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The bending stress in a beam is _________ section modulus.

A. Inversely proportional to two times

B. Directly proportional to

C. Inversely proportional to

D. None of these

Discuss this answer

The efficiency of Carnot cycle depends upon

A. Temperature limits

B. Pressure ratio

C. Volume compression ratio

D. Cut-off ratio and compression ratio

Discuss this answer

Accepted Answer

A. (σx/2) + (1/2) × √(σx² + 4 τ²xy)

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

Correct Answer :

Show all Strength of Materials MCQ

Related Questions

If the slenderness ratio for a column is 100, then it is said to be a _________ column.

The property of a material by virtue of which a body returns to its original, shape after removal of the load is called

The heating of gas at constant volume is governed by

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

The specific heat of water is

Stirling and Ericsson cycles are

The value of Poisson's ratio for steel is between

In a tensile test on mild steel specimen, the breaking stress as compared to ultimate tensile stress is

The pull required to tear off the plate per pitch length is (where p = Pitch of rivets, t = Thickness of plates, and σt, τ and σc = Permissible tensile, shearing and crushing stresses respectively)

Otto cycle is also known as

In order to prevent crushing of masonry at the base of the dam, the maximum stress should be __________ the permissible stress of the soil.

A process, in which the gas is heated or expanded in such a way that the product of its pressure and volume remains constant, is called

The processes occuring in open system which permit the transfer of mass to and from the system, are known as

The total strain energy stored in a body is termed a

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

A cantilever beam is one which is

The heat flows from a cold body to a hot body with the aid of an external source. This statement is given by

Volumetric strain for a rectangular specimen of length l, breadth b and thickness t subjected to a pull of P is given by

When a gas is heated at constant volume

The value of 1 mm of Hg is equal to

The efficiency of the dual combustion cycle for the same compression ratio is __________ Diesel cycle.

During a tensile test on a specimen of 1 cm cross-section, maximum load observed was 8 tonnes and area of cross-section at neck was 0.5 cm². Ultimate tensile strength of specimen is

Workdone during adiabatic expansion is given by (where p₁ v₁, T₁ = Pressure, volume and temperature for the initial condition of gas, p_2, v₂, T₂ = Corresponding values for the final condition of gas, R = Gas constant, and γ = Ratio of specific heats)

The atomic mass of nitrogen is __________ oxygen.

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

The ultimate tensile stress of mild steel compared to ultimate compressive stress is

The torque transmitted by a solid shaft of diameter (D) is (where τ = Maximum allowable shear stress)

The bending equation is

The bending stress in a beam is _________ section modulus.

The efficiency of Carnot cycle depends upon

Also checkout

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

Correct Answer :

Show all Strength of Materials MCQ

Related Questions

If the slenderness ratio for a column is 100, then it is said to be a _________ column.

The property of a material by virtue of which a body returns to its original, shape after removal of the load is called

The heating of gas at constant volume is governed by

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

The specific heat of water is

Stirling and Ericsson cycles are

The value of Poisson's ratio for steel is between

In a tensile test on mild steel specimen, the breaking stress as compared to ultimate tensile stress is

The pull required to tear off the plate per pitch length is (where p = Pitch of rivets, t = Thickness of plates, and σt, τ and σc = Permissible tensile, shearing and crushing stresses respectively)

Otto cycle is also known as

In order to prevent crushing of masonry at the base of the dam, the maximum stress should be __________ the permissible stress of the soil.

A process, in which the gas is heated or expanded in such a way that the product of its pressure and volume remains constant, is called

The processes occuring in open system which permit the transfer of mass to and from the system, are known as

The total strain energy stored in a body is termed a

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

A cantilever beam is one which is

The heat flows from a cold body to a hot body with the aid of an external source. This statement is given by

Volumetric strain for a rectangular specimen of length l, breadth b and thickness t subjected to a pull of P is given by

When a gas is heated at constant volume

The value of 1 mm of Hg is equal to

The efficiency of the dual combustion cycle for the same compression ratio is __________ Diesel cycle.

During a tensile test on a specimen of 1 cm cross-section, maximum load observed was 8 tonnes and area of cross-section at neck was 0.5 cm². Ultimate tensile strength of specimen is

Workdone during adiabatic expansion is given by (where p1 v1, T1 = Pressure, volume and temperature for the initial condition of gas, p2, v2, T2 = Corresponding values for the final condition of gas, R = Gas constant, and γ = Ratio of specific heats)

The atomic mass of nitrogen is __________ oxygen.

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

The ultimate tensile stress of mild steel compared to ultimate compressive stress is

The torque transmitted by a solid shaft of diameter (D) is (where τ = Maximum allowable shear stress)

The bending equation is

The bending stress in a beam is _________ section modulus.

The efficiency of Carnot cycle depends upon

Also checkout

Workdone during adiabatic expansion is given by (where p₁ v₁, T₁ = Pressure, volume and temperature for the initial condition of gas, p_2, v₂, T₂ = Corresponding values for the final condition of gas, R = Gas constant, and γ = Ratio of specific heats)