Chemical Engineering Basics MCQ Questions & Answers | Chemical Engineering

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71.
The velocity at which individual particles from a fluidised bed are carried away by the fluid passing through it, is defined as the

A. Minimum fluidisation velocity

B. Terminal velocity

C. Elutriation velocity

D. Superficial velocity

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72.
__________ of hard alloy and tool steel is done to make it easily machinable.

A. Case carburising

B. Tempering

C. Normalising

D. Annealing

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73.
Ultimate strength in tension as compared to that in shear for steel is

A. Half

B. One third

C. One and half times

D. One fourth

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74.
The predominant mode of heat transfer which takes place from boiler furnace to water walls of a boiler is

A. Conduction

B. Convection

C. Both A & B

D. Radiation

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75.
Sub zero treatment of steel is done to

A. Suppress martensite transformation

B. Enhance its working performance in sub zero atmosphere

C. Reduce the retained austenite in hardened steel

D. Induce temper brittleness after its hardening

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76.
__________ can replace tungsten in high speed steel.

A. Chromium

B. Vanadium

C. Cobalt

D. Molybdenum

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77.
'Flare tower' used in industry is meant for

A. Venting off (after burning) the excess inflammable/toxic gases at high pressure

B. Absorbing the pollutant gases from the furnace exhaust

C. Cooling of furnace exhaust gases

D. None of these

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78.
A jig is used while __________ a hole.

A. Boring

B. Counter boring

C. Drilling

D. Enlarging

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79.
Which of the following heat treatment processes is usually applied to castings ?

A. Tempering

B. Annealing

C. Normalising

D. Carburising

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80.
Boiler draught of 10 mm water column is equivalent to

A. 1 kgf/m²

B. 10 kgf/m²

C. 10 kgf/mm²

D. 1 kgf/mm²

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Chemical Engineering Basics MCQ Questions & Answers | Chemical Engineering

71. The velocity at which individual particles from a fluidised bed are carried away by the fluid passing through it, is defined as the

Answer & Solution

72. __________ of hard alloy and tool steel is done to make it easily machinable.

Answer & Solution

73. Ultimate strength in tension as compared to that in shear for steel is

Answer & Solution

74. The predominant mode of heat transfer which takes place from boiler furnace to water walls of a boiler is

Answer & Solution

75. Sub zero treatment of steel is done to

Answer & Solution

76. __________ can replace tungsten in high speed steel.

Answer & Solution

77. 'Flare tower' used in industry is meant for

Answer & Solution

78. A jig is used while __________ a hole.

Answer & Solution

79. Which of the following heat treatment processes is usually applied to castings ?

Answer & Solution

80. Boiler draught of 10 mm water column is equivalent to

Answer & Solution

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71.
The velocity at which individual particles from a fluidised bed are carried away by the fluid passing through it, is defined as the

72.
__________ of hard alloy and tool steel is done to make it easily machinable.

73.
Ultimate strength in tension as compared to that in shear for steel is

74.
The predominant mode of heat transfer which takes place from boiler furnace to water walls of a boiler is

75.
Sub zero treatment of steel is done to

76.
__________ can replace tungsten in high speed steel.

77.
'Flare tower' used in industry is meant for

78.
A jig is used while __________ a hole.

79.
Which of the following heat treatment processes is usually applied to castings ?

80.
Boiler draught of 10 mm water column is equivalent to