A fletched beam is used to

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A fletched beam is used to

A. Change the shape of the beam

B. Effect the saving in material

C. Equalise the strength in tension and compression

D. Increase the cross-section of the beam

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Elasticity of Mild Steel specimen is defined by

A. Hookes law

B. Yield point

C. Plastic flow

D. Proof stress

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Diamond riveted joint can be adopted in the case of following type of joint

A. Butt joint

B. Lap joint

C. Double riveted lap joints

D. All types of joints

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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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Reversed joule cycle is called

A. Carnot cycle

B. Rankine cycle

C. Brayton cycle

D. Bell Coleman cycle

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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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Formula based on IS codes is based on

A. Straight line formula

B. Eulers formula

C. Rankines formula

D. Secant formula

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Which of the following is the correct statement of the second law of thermodynamics?

A. It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work.

B. It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source.

C. There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy.

D. All of the above

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When the expansion or compression takes place according to the law pvn = C, the process is known as

A. Isothermal process

B. Adiabatic process

C. Hyperbolic process

D. Polytropic process

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A beam is loaded as cantilever. If the load at the end is increased, the failure will occur

A. In the middle

B. At the tip below the load

C. At the support

D. Anywhere

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Second law of thermodynamics defines

A. Heat

B. Work

C. Internal energy

D. Entropy

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Shear modulus is the ratio of

A. Linear stress to linear strain

B. Linear stress to lateral strain

C. Volumetric strain to linear strain

D. Shear stress to shear strain

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For a simply supported beam of length l, when a concentrated load W is applied in the centre of the beam, the maximum deflection is

A. 5WL³/ 384EI

B. WL³/384EI

C. WL³/ 348EI

D. WL³/ 48EI

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The thermal efficiency of an ideal gas turbine plant is given by (where r = Pressure ratio)

A. r^γ - 1

B. 1 - r^γ - 1

C. 1 - (1/r)^{γ/γ - 1}

D. 1 - (1/r)^{γ - 1/ γ}

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Select the wrong statement

A. A Joule cycle consists of two constant volume and two isentropic processes.

B. An Otto cycle consists of two constant volume and two isentropic processes.

C. An Ericsson cycle consists of two constant pressure and two isothermal processes.

D. All of the above

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The compression ratio for petrol engines is

A. 3 to 6

B. 5 to 8

C. 15 to 20

D. 20 to 30

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For a perfect gas, according to Boyle's law (where p = Absolute pressure, v = Volume, and T = Absolute temperature)

A. p v = constant, if T is kept constant

B. v/T = constant, if p is kept constant

C. p/T = constant, if v is kept constant

D. T/p = constant, if v is kept constant

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The gas in cooling chamber of a closed cycle gas turbine is cooled at

A. Constant volume

B. Constant temperature

C. Constant pressure

D. None of these

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One kg of hydrogen requires 8 kg of oxygen and produces

A. 1 kg of water

B. 7 kg of water

C. 8 kg of water

D. 9 kg of water

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The value of gas constant (R) in S. I. units is

A. 0.287 J/kgK

B. 2.87 J/kgK

C. 28.7 J/kgK

D. 287 J/kgK

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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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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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The specific heat of water is

A. 1.817

B. 2512

C. 4.187

D. None of these

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A key is subjected to side pressure as well at shearing forces. These pressures are called

A. Bearing stresses

B. Fatigue stresses

C. Crushing stresses

D. Resultant stresses

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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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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 general gas energy equation is (where Q1 - 2 = Heat supplied, dU = Change in internal energy, and W1 - 2 = Work done in heat units)

A. Q_{1 - 2} = dU + W_{1 - 2}

B. Q_{1 - 2} = dU - W_{1 - 2}

C. Q_{1 - 2} = dU/W_{1 - 2}

D. Q_{1 - 2} = dU × W_{1 - 2}

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The maximum diameter of the hole that can be punched from a plate of maximum shear stress 1/4th of its maximum crushing stress of punch, is equal to (where t = Thickness of the plate)

A. t

B. 2t

C. 4t

D. 8t

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The ratio of specific heat at constant pressure (cp) and specific heat at constant volume (cv) is

A. Equal to one

B. Less than one

C. Greater than one

D. None of these

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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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In an ideal gas turbine plant, it is assumed that the compression and expansion processes are

A. Isothermal

B. Isentropic

C. Polytropic

D. None of these

Discuss this answer

Accepted Answer

C. Equalise the strength in tension and compression

A fletched beam is used to

Correct Answer :

Show all Strength of Materials MCQ

Related Questions

Elasticity of Mild Steel specimen is defined by

Diamond riveted joint can be adopted in the case of following type of joint

A double strap butt joint with equal straps is

Reversed joule cycle is called

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

Formula based on IS codes is based on

Which of the following is the correct statement of the second law of thermodynamics?

When the expansion or compression takes place according to the law pvn = C, the process is known as

A beam is loaded as cantilever. If the load at the end is increased, the failure will occur

Second law of thermodynamics defines

Shear modulus is the ratio of

For a simply supported beam of length l, when a concentrated load W is applied in the centre of the beam, the maximum deflection is

The thermal efficiency of an ideal gas turbine plant is given by (where r = Pressure ratio)

Select the wrong statement

The compression ratio for petrol engines is

For a perfect gas, according to Boyle's law (where p = Absolute pressure, v = Volume, and T = Absolute temperature)

The gas in cooling chamber of a closed cycle gas turbine is cooled at

One kg of hydrogen requires 8 kg of oxygen and produces

The value of gas constant (R) in S. I. units is

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

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

The specific heat of water is

A key is subjected to side pressure as well at shearing forces. These pressures are called

Which of the following is correct?

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 general gas energy equation is (where Q1 - 2 = Heat supplied, dU = Change in internal energy, and W1 - 2 = Work done in heat units)

The maximum diameter of the hole that can be punched from a plate of maximum shear stress 1/4th of its maximum crushing stress of punch, is equal to (where t = Thickness of the plate)

The ratio of specific heat at constant pressure (cp) and specific heat at constant volume (cv) is

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

In an ideal gas turbine plant, it is assumed that the compression and expansion processes are

Also checkout

A fletched beam is used to

Correct Answer :

Show all Strength of Materials MCQ

Related Questions

Elasticity of Mild Steel specimen is defined by

Diamond riveted joint can be adopted in the case of following type of joint

A double strap butt joint with equal straps is

Reversed joule cycle is called

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

Formula based on IS codes is based on

Which of the following is the correct statement of the second law of thermodynamics?

When the expansion or compression takes place according to the law pvn = C, the process is known as

A beam is loaded as cantilever. If the load at the end is increased, the failure will occur

Second law of thermodynamics defines

Shear modulus is the ratio of

For a simply supported beam of length l, when a concentrated load W is applied in the centre of the beam, the maximum deflection is

The thermal efficiency of an ideal gas turbine plant is given by (where r = Pressure ratio)

Select the wrong statement

The compression ratio for petrol engines is

For a perfect gas, according to Boyle's law (where p = Absolute pressure, v = Volume, and T = Absolute temperature)

The gas in cooling chamber of a closed cycle gas turbine is cooled at

One kg of hydrogen requires 8 kg of oxygen and produces

The value of gas constant (R) in S. I. units is

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

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

The specific heat of water is

A key is subjected to side pressure as well at shearing forces. These pressures are called

Which of the following is correct?

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 general gas energy equation is (where Q1 - 2 = Heat supplied, dU = Change in internal energy, and W1 - 2 = Work done in heat units)

The maximum diameter of the hole that can be punched from a plate of maximum shear stress 1/4th of its maximum crushing stress of punch, is equal to (where t = Thickness of the plate)

The ratio of specific heat at constant pressure (cp) and specific heat at constant volume (cv) is

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

In an ideal gas turbine plant, it is assumed that the compression and expansion processes are

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)