A concentrated load is one which

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A concentrated load is one which

A. Acts at a point on a beam

B. Spreads non-uniformly over the whole length of a beam

C. Spreads uniformly over the whole length of a beam

D. Varies uniformly over the whole length of a beam

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Which of the following cycles has maximum efficiency?

A. Rankine

B. Stirling

C. Carnot

D. Brayton

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The behaviour of super-heated vapour is similar to that of

A. Perfect gas

B. Air

C. Steam

D. Ordinary gas

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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

A. Zero

B. wl/4

C. wl/2

D. wl²/2

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Which of the following statement is correct?

A. The stress is the pressure per unit area

B. The strain is expressed in mm

C. Hook's law holds good upto the breaking point

D. Stress is directly proportional to strain within elastic limit

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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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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

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The stress at which extension of the material takes place more quickly as compared to the increase in load is called

A. Elastic point of the material

B. Plastic point of the material

C. Breaking point of the material

D. Yielding point of the material

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In an isothermal process,

A. There is no change in temperature

B. There is no change in enthalpy

C. There is no change in internal energy

D. All of these

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The entropy may be expressed as a function of

A. Pressure and temperature

B. Temperature and volume

C. Heat and work

D. All of these

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Which of the following statement is wrong?

A. The deformation of the bar per unit length in the direction of the force is called linear strain.

B. The Poisson's ratio is the ratio of lateral strain to the linear strain.

C. The ratio of change in volume to the original volume is called volumetric strain.

D. The bulk modulus is the ratio of linear stress to the linear strain.

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The specific heat at constant volume is

A. The amount of heat required to raise the temperature of unit mass of gas through one degree, at constant pressure

B. The amount of heat required to raise the temperature of unit mass of gas through one degree, at constant volume

C. The amount of heat required to raise the temperature of 1 kg of water through one degree

D. Any one of the above

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If in the equation pvn = C, the value of n = ∝, then the process is called

A. Constant volume process

B. Adiabatic process

C. Constant pressure process

D. Isothermal process

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In a steady flow process, the ratio of

A. Heat transfer is constant

B. Work transfer is constant

C. Mass flow at inlet and outlet is same

D. All of these

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The torsional rigidity of a shaft is expressed by the

A. Maximum torque it can transmit

B. Number of cycles it undergoes before failure

C. Elastic limit up to which it resists torsion, shear and bending stresses

D. Torque required to produce a twist of one radian per unit length of shaft

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If Th is the torque resisting capacity of a hollow shaft and Ts is that of a solid shaft, of the same material, length and weight. Then,

A. Th > Ts

B. Th < Ts

C. Th = Ts

D. None of these

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After reaching the yielding stage while testing a mild steel specimen, strain

A. Becomes constant

B. Starts decreasing

C. Increases without any increase in load

D. None of the above

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For the same compression ratio, the efficiency of Diesel cycle is __________ Otto cycle.

A. Greater than

B. Less than

C. Equal to

D. None of these

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The increase in entropy of a system represents

A. Increase in availability of energy

B. Increase in temperature

C. Decrease in pressure

D. Degradation of energy

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The ideal efficiency of a Brayton cycle without regeneration, with increase in pressure ratio will

A. Increase

B. Decrease

C. Remain unchanged

D. Increase/decrease depending on application

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The total elongation produced in a bar of uniform section hanging vertically downwards due to its own weight is equal to that produced by a weight

A. Of same magnitude as that of bar and applied at the lower end

B. Half the weight of bar applied at lower end

C. Half of the square of weight of bar applied at lower end

D. One fourth of weight of bar applied at lower end

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In order to know whether a column is long or short, we must know its

A. Ultimate shear stress of the column

B. Factor of safety

C. Torque resisting capacity

D. Slenderness ratio

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The tensile strength of the welded joint for double fillet is (where s = Leg or size of the weld, l = Length of weld, and σt = Allowable tensile stress for weld metal)

A. 0.5 s.l.σ_t

B. s.l.σ_t

C. √2 s.l.σ_t

D. 2.s.l.σt

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Resilience of a material is considered when it is subjected to

A. Frequent heat treatment

B. Fatigue

C. Creep

D. Shock loading

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The mass of excess air supplied is equal to

A. (23/100) × Mass of excess carbon

B. (23/100) × Mass of excess oxygen

C. (100/23) × Mass of excess carbon

D. (100/23) × Mass of excess oxygen

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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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High air-fuel ratio in gas turbines

A. Increases power output

B. Improves thermal efficiency

C. Reduces exhaust temperature

D. Do not damage turbine blades

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In a tensile test, near the elastic limit zone, the

A. Tensile strain increases more quickly

B. Tensile strain decreases more quickly

C. Tensile strain increases in proportion to the stress

D. Tensile strain decreases in proportion to the stress

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In the torsion equation T/J = τ/r = Gθ/ L, the term J/R is called

A. Shear modulus

B. Section modulus

C. Polar modulus

D. None of these

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The process is adiabatic, if the value of n in the equation pvn = C, is

A. 0

B. 1

C. γ

D. ∝

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All perfect gases change in volume by 1/273th of its original volume at 0°C for every 1°C change in temperature, when the pressure remains constant. This statement is called

A. Boyle's law

B. Charles' law

C. Gay-Lussac law

D. Joule's law

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Accepted Answer

A. Acts at a point on a beam

A concentrated load is one which

Correct Answer :

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Related Questions

Which of the following cycles has maximum efficiency?

The behaviour of super-heated vapour is similar to that of

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

Which of the following statement is correct?

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

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 stress at which extension of the material takes place more quickly as compared to the increase in load is called

In an isothermal process,

The entropy may be expressed as a function of

Which of the following statement is wrong?

The specific heat at constant volume is

If in the equation pvn = C, the value of n = ∝, then the process is called

In a steady flow process, the ratio of

The torsional rigidity of a shaft is expressed by the

If Th is the torque resisting capacity of a hollow shaft and Ts is that of a solid shaft, of the same material, length and weight. Then,

After reaching the yielding stage while testing a mild steel specimen, strain

For the same compression ratio, the efficiency of Diesel cycle is __________ Otto cycle.

The increase in entropy of a system represents

The ideal efficiency of a Brayton cycle without regeneration, with increase in pressure ratio will

The total elongation produced in a bar of uniform section hanging vertically downwards due to its own weight is equal to that produced by a weight

In order to know whether a column is long or short, we must know its

The tensile strength of the welded joint for double fillet is (where s = Leg or size of the weld, l = Length of weld, and σt = Allowable tensile stress for weld metal)

Resilience of a material is considered when it is subjected to

The mass of excess air supplied is equal to

The compression ratio is the ratio of

High air-fuel ratio in gas turbines

In a tensile test, near the elastic limit zone, the

In the torsion equation T/J = τ/r = Gθ/ L, the term J/R is called

The process is adiabatic, if the value of n in the equation pvn = C, is

All perfect gases change in volume by 1/273th of its original volume at 0°C for every 1°C change in temperature, when the pressure remains constant. This statement is called

Also checkout

A concentrated load is one which

Correct Answer :

Show all Strength of Materials MCQ

Related Questions

Which of the following cycles has maximum efficiency?

The behaviour of super-heated vapour is similar to that of

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

Which of the following statement is correct?

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

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 stress at which extension of the material takes place more quickly as compared to the increase in load is called

In an isothermal process,

The entropy may be expressed as a function of

Which of the following statement is wrong?

The specific heat at constant volume is

If in the equation pvn = C, the value of n = ∝, then the process is called

In a steady flow process, the ratio of

The torsional rigidity of a shaft is expressed by the

If Th is the torque resisting capacity of a hollow shaft and Ts is that of a solid shaft, of the same material, length and weight. Then,

After reaching the yielding stage while testing a mild steel specimen, strain

For the same compression ratio, the efficiency of Diesel cycle is __________ Otto cycle.

The increase in entropy of a system represents

The ideal efficiency of a Brayton cycle without regeneration, with increase in pressure ratio will

The total elongation produced in a bar of uniform section hanging vertically downwards due to its own weight is equal to that produced by a weight

In order to know whether a column is long or short, we must know its

The tensile strength of the welded joint for double fillet is (where s = Leg or size of the weld, l = Length of weld, and σt = Allowable tensile stress for weld metal)

Resilience of a material is considered when it is subjected to

The mass of excess air supplied is equal to

The compression ratio is the ratio of

High air-fuel ratio in gas turbines

In a tensile test, near the elastic limit zone, the

In the torsion equation T/J = τ/r = Gθ/ L, the term J/R is called

The process is adiabatic, if the value of n in the equation pvn = C, is

All perfect gases change in volume by 1/273th of its original volume at 0°C for every 1°C change in temperature, when the pressure remains constant. This statement is called

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)