The efficiency and work ratio of a simple gas turbine cycle are

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The efficiency and work ratio of a simple gas turbine cycle are

A. Low

B. Very low

C. High

D. Very high

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

A. Top layer

B. Bottom layer

C. Neutral axis

D. Every cross-section

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The unit of energy is S. I. units is

A. Joule (J)

B. Joule metre (Jm)

C. Watt (W)

D. Joule/metre (J/m)

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Relation between cp and cv is given by (where cp = Specific heat at constant pressure, cv = Specific heat at constant volume, γ = cp/cv, known as adiabatic index, and R = Gas constant)

A. cv/ cp =R

B. cp - cv = R

C. cv = R/ γ-1

D. Both (B) and (C)

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The efficiency of the Carnot cycle may be increased by

A. Increasing the highest temperature

B. Decreasing the highest temperature

C. Increasing the lowest temperature

D. Keeping the lowest temperature constant

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The heat and mechanical energies are mutually convertible. This statement was established by

A. Boyle

B. Charles

C. Joule

D. None of these

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In an irreversible process, there is a

A. Loss of heat

B. No loss of heat

C. Gain of heat

D. No gain of heat

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The distance between the centres of the rivets in adjacent rows of zigzag riveted joint is known as

A. Pitch

B. Back pitch

C. Diagonal pitch

D. Diametric pitch

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The efficiency of Stirling cycle is __________ Carnot cycle.

A. Greater than

B. Less than

C. Equal to

D. None of these

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For the constant pressure and heat input, the air standard efficiency of gas power cycle is in the order

A. Dual cycle, Diesel cycle, Otto cycle

B. Otto cycle, Diesel cycle, Dual cycle

C. Dual cycle, Otto cycle, Diesel cycle

D. Diesel cycle, Otto cycle, Dual cycle

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The extension of a circular bar tapering uniformly from diameter d₁ at one end to diameter d₂ at the other end and subjected to an axial pull of P is given by

A. δl = 4PE/ πl²

B. δl = 4πld²/PE

C. δl = 4Pl/πEd₁d₂

D. δl = 4PlE/ πd₁d₂

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A close cycle gas turbine gives __________ efficiency as compared to an open cycle gas turbine.

A. Same

B. Lower

C. Higher

D. None of these

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The efficiency of a gas turbine is given by

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

B. (Net work output)/(Heat supplied)

C. (Actual temperature drop)/(Isentropic temperature drop)

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

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The work ratio of a gas turbine plant is given by

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

B. (Net work output)/(Heat supplied)

C. (Actual temperature drop)/(Isentropic temperature drop)

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

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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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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 air standard efficiency of an Otto cycle is given by (where r = Compression ratio, and γ = Ratio of specific heats)

A. 1 - r^{γ - 1}

B. 1 + r^{γ - 1}

C. 1 - (1/ r^{γ - 1})

D. 1 + (1/ r^{γ - 1})

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Strain is equal to (where l = Original length, and δl = Change in length)

A. l/δl

B. δl/l

C. l.δl

D. l + δl

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A double strap butt joint with equal straps is

A. Always in single shear

B. Always in double shear

C. Either in single shear or double shear

D. None of these

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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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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 maximum 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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Which of the following is correct?

A. Absolute pressure = Gauge pressure + Atmospheric pressure

B. Gauge pressure = Absolute pressure + Atmospheric pressure

C. Atmospheric pressure = Absolute pressure + Gauge pressure

D. Absolute pressure = Gauge pressure - Atmospheric pressure

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The layer at the centre of gravity of the beam as shown in the below figure, will be

A. In tension

B. In compression

C. Neither in tension nor in compression

D. None of these

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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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A masonry dam may fail due to

A. Tension in the masonry of the dam and its base

B. Overturning of the dam

C. Crushing of masonry at the base of the dam

D. Any one of the above

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The efficiency and work ratio of a simple gas turbine cycle are

A. Low

B. Very low

C. High

D. Very high

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

A. Steel only

B. Concrete only

C. Steel and concrete both

D. None of these

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The __________ is obtained when carbonisation of coal is carried out at 500° to 700° C.

A. Soft coal

B. Hard coal

C. Pulverised coal

D. Bituminous coal

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Steam coal is a

A. Pulverised coal

B. Brown coal

C. Coking bituminous coal

D. Non-coking bituminous coal

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Percentage reduction of area in performing tensile test on cast iron may be of the order of

A. 50 %

B. 25 %

C. 0 %

D. 15 %

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The fuel mostly used in cement industry and in metallurgical processes is

A. Wood charcoal

B. Bituminous coke

C. Pulverised coal

D. Coke

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Accepted Answer

B. Very low

The efficiency and work ratio of a simple gas turbine cycle are

Correct Answer :

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Related Questions

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

The unit of energy is S. I. units is

Relation between cp and cv is given by (where cp = Specific heat at constant pressure, cv = Specific heat at constant volume, γ = cp/cv, known as adiabatic index, and R = Gas constant)

The efficiency of the Carnot cycle may be increased by

The heat and mechanical energies are mutually convertible. This statement was established by

In an irreversible process, there is a

The distance between the centres of the rivets in adjacent rows of zigzag riveted joint is known as

The efficiency of Stirling cycle is __________ Carnot cycle.

For the constant pressure and heat input, the air standard efficiency of gas power cycle is in the order

The extension of a circular bar tapering uniformly from diameter d₁ at one end to diameter d₂ at the other end and subjected to an axial pull of P is given by

A close cycle gas turbine gives __________ efficiency as compared to an open cycle gas turbine.

The efficiency of a gas turbine is given by

The work ratio of a gas turbine plant is given by

The value of Poisson's ratio for steel is between

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

The air standard efficiency of an Otto cycle is given by (where r = Compression ratio, and γ = Ratio of specific heats)

Strain is equal to (where l = Original length, and δl = Change in length)

A double strap butt joint with equal straps is

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

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 maximum normal stress is

Which of the following is correct?

The layer at the centre of gravity of the beam as shown in the below figure, will be

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

A masonry dam may fail due to

The efficiency and work ratio of a simple gas turbine cycle are

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

The __________ is obtained when carbonisation of coal is carried out at 500° to 700° C.

Steam coal is a

Percentage reduction of area in performing tensile test on cast iron may be of the order of

The fuel mostly used in cement industry and in metallurgical processes is

Also checkout

The efficiency and work ratio of a simple gas turbine cycle are

Correct Answer :

Show all Strength of Materials MCQ

Related Questions

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

The unit of energy is S. I. units is

Relation between cp and cv is given by (where cp = Specific heat at constant pressure, cv = Specific heat at constant volume, γ = cp/cv, known as adiabatic index, and R = Gas constant)

The efficiency of the Carnot cycle may be increased by

The heat and mechanical energies are mutually convertible. This statement was established by

In an irreversible process, there is a

The distance between the centres of the rivets in adjacent rows of zigzag riveted joint is known as

The efficiency of Stirling cycle is __________ Carnot cycle.

For the constant pressure and heat input, the air standard efficiency of gas power cycle is in the order

The extension of a circular bar tapering uniformly from diameter d₁ at one end to diameter d₂ at the other end and subjected to an axial pull of P is given by

A close cycle gas turbine gives __________ efficiency as compared to an open cycle gas turbine.

The efficiency of a gas turbine is given by

The work ratio of a gas turbine plant is given by

The value of Poisson's ratio for steel is between

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

The air standard efficiency of an Otto cycle is given by (where r = Compression ratio, and γ = Ratio of specific heats)

Strain is equal to (where l = Original length, and δl = Change in length)

A double strap butt joint with equal straps is

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

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

Which of the following is correct?

The layer at the centre of gravity of the beam as shown in the below figure, will be

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

A masonry dam may fail due to

The efficiency and work ratio of a simple gas turbine cycle are

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

The __________ is obtained when carbonisation of coal is carried out at 500° to 700° C.

Steam coal is a

Percentage reduction of area in performing tensile test on cast iron may be of the order of

The fuel mostly used in cement industry and in metallurgical processes is

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 maximum normal stress is