Which of the following is correct?

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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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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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A closely-coiled helical spring is cut into two halves. The stiffness of the resulting spring will be

A. Same

B. Double

C. Half

D. One-fourth

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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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Steam coal is a

A. Pulverised coal

B. Brown coal

C. Coking bituminous coal

D. Non-coking bituminous coal

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The neutral axis of a transverse section of a beam passes through the centre of gravity of the section and is

A. In the vertical plane

B. In the horizontal plane

C. In the same plane in which the beam bends

D. At right angle to the plane in which the beam bends

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According to First law of thermodynamics,

A. Total internal energy of a system during a process remains constant

B. Total energy of a system remains constant

C. Workdone by a system is equal to the heat transferred by the system

D. Internal energy, enthalpy and entropy during a process remain constant

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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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The capacity of a strained body for doing work on the removal of the straining force, is called

A. Strain energy

B. Resilience

C. Proof resilience

D. Impact energy

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A process, in which the working substance neither receives nor gives out heat to its surroundings during its expansion or compression, is called

A. Isothermal process

B. Hyperbolic process

C. Adiabatic process

D. Polytropic process

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A boiler shell 200 cm diameter and plate thickness 1.5 cm is subjected to internal pressure of 1.5 MN/m, and then the hoop stress will be

A. 30 MN/m²

B. 50 MN/m²

C. 100 MN/m²

D. 200 MN/m²

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The stress induced in a body, when suddenly loaded, is ________ the stress induced when the same load is applied gradually.

A. Equal to

B. One-half

C. Twice

D. Four times

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The principal constituents of a fuel are

A. Carbon and hydrogen

B. Oxygen and hydrogen

C. Sulphur and oxygen

D. Sulphur and hydrogen

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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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The deformation of a bar under its own weight compared to the deformation of same body subjected to a direct load equal to weight of the body is

A. Same

B. Double

C. Half

D. Four times

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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 absolute zero pressure will be

A. When molecular momentum of the system becomes zero

B. At sea level

C. At the temperature of - 273 K

D. At the centre of the earth

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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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An open cycle gas turbine works on

A. Carnot cycle

B. Otto cycle

C. Joule's cycle

D. Stirling cycle

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Which of the following is an intensive property of a thermodynamic system?

A. Volume

B. Temperature

C. Mass

D. Energy

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A bar of copper and steel form a composite system, which is heated to a temperature of 40°C. The stress induced in the copper bar will be

A. Tensile

B. Compressive

C. Shear

D. Zero

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The unit of Young's modulus is

A. mm/mm

B. kg/cm

C. Kg

D. kg/cm²

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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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The property of a working substance which increases or decreases as the heat is supplied or removed in a reversible manner, is known as

A. Enthalpy

B. Internal energy

C. Entropy

D. External energy

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

A. τ²/ 2G × Volume of shaft

B. τ/ 2G × Volume of shaft

C. τ²/ 4G × Volume of shaft

D. τ/ 4G × Volume of shaft

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The __________ states that change of internal energy of a perfect gas is directly proportional to the change of temperature.

A. Boyle's law

B. Charle's law

C. Gay-Lussac law

D. Joule's law

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The hyperbolic process is governed by

A. Boyle's law

B. Charles' law

C. Gay-Lussac law

D. Avogadro's law

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A cycle consisting of two constant pressure and two isentropic processes is known as

A. Carnot cycle

B. Stirling cycle

C. Otto cycle

D. None of these

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In compression test, the fracture in cast iron specimen would occur along

A. The axis of load

B. An oblique plane

C. At right angles to the axis of specimen

D. Would not occur

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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

Discuss this answer

Reversed joule cycle is called

A. Carnot cycle

B. Rankine cycle

C. Brayton cycle

D. Bell Coleman cycle

Discuss this answer

Accepted Answer

B. Absolute pressure = Gauge pressure + Atmospheric pressure

Which of the following is correct?

Correct Answer :

Show all Strength of Materials MCQ

Related Questions

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 closely-coiled helical spring is cut into two halves. The stiffness of the resulting spring will be

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

Steam coal is a

The neutral axis of a transverse section of a beam passes through the centre of gravity of the section and is

According to First law of thermodynamics,

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

The capacity of a strained body for doing work on the removal of the straining force, is called

A process, in which the working substance neither receives nor gives out heat to its surroundings during its expansion or compression, is called

A boiler shell 200 cm diameter and plate thickness 1.5 cm is subjected to internal pressure of 1.5 MN/m, and then the hoop stress will be

The stress induced in a body, when suddenly loaded, is ________ the stress induced when the same load is applied gradually.

The principal constituents of a fuel are

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

The deformation of a bar under its own weight compared to the deformation of same body subjected to a direct load equal to weight of the body is

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

The absolute zero pressure will be

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

An open cycle gas turbine works on

Which of the following is an intensive property of a thermodynamic system?

A bar of copper and steel form a composite system, which is heated to a temperature of 40°C. The stress induced in the copper bar will be

The unit of Young's modulus is

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

The property of a working substance which increases or decreases as the heat is supplied or removed in a reversible manner, is known as

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

The __________ states that change of internal energy of a perfect gas is directly proportional to the change of temperature.

The hyperbolic process is governed by

A cycle consisting of two constant pressure and two isentropic processes is known as

In compression test, the fracture in cast iron specimen would occur along

The torsional rigidity of a shaft is expressed by the

Reversed joule cycle is called

Also checkout

Which of the following is correct?

Correct Answer :

Show all Strength of Materials MCQ

Related Questions

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)

A closely-coiled helical spring is cut into two halves. The stiffness of the resulting spring will be

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

Steam coal is a

The neutral axis of a transverse section of a beam passes through the centre of gravity of the section and is

According to First law of thermodynamics,

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

The capacity of a strained body for doing work on the removal of the straining force, is called

A process, in which the working substance neither receives nor gives out heat to its surroundings during its expansion or compression, is called

A boiler shell 200 cm diameter and plate thickness 1.5 cm is subjected to internal pressure of 1.5 MN/m, and then the hoop stress will be

The stress induced in a body, when suddenly loaded, is ________ the stress induced when the same load is applied gradually.

The principal constituents of a fuel are

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

The deformation of a bar under its own weight compared to the deformation of same body subjected to a direct load equal to weight of the body is

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

The absolute zero pressure will be

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

An open cycle gas turbine works on

Which of the following is an intensive property of a thermodynamic system?

A bar of copper and steel form a composite system, which is heated to a temperature of 40°C. The stress induced in the copper bar will be

The unit of Young's modulus is

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

The property of a working substance which increases or decreases as the heat is supplied or removed in a reversible manner, is known as

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

The __________ states that change of internal energy of a perfect gas is directly proportional to the change of temperature.

The hyperbolic process is governed by

A cycle consisting of two constant pressure and two isentropic processes is known as

In compression test, the fracture in cast iron specimen would occur along

The torsional rigidity of a shaft is expressed by the

Reversed joule cycle 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)