Chemical Engineering Basics MCQ Questions & Answers | Chemical Engineering

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81.
Which of the following has the highest density and the lowest melting point ?

A. Stainless steel

B. Titanium

C. Lead

D. Aluminium

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82.
Machinability of hard alloys and tool steels is improved by

A. Spherodising

B. Annealing

C. Tempering

D. Normalising

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83.
A steam carraying pipeline is insulated with two layers of insulating materials with the inferior insulation material forming the inner part. If the two insulating layers are interchanged, the heat conducted will

A. Increase

B. Decrease

C. Remain unaffected

D. May increase or decrease; depends on the thickness of each layer

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84.
In a furnace with heating element temperature at 1700°C, the dominant machanism of heat transfer will be

A. Conduction

B. Radiation

C. Natural convection

D. Forced convection

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85.
Annealing of cast iron

A. Softens it to facilitate machining

B. Decreases the free carbon

C. Increases the strength

D. None of these

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86.
The dimensions of Planck's constant is the same as that of the

A. Kinetic energy

B. Momentum

C. Electrostatic potential

D. None of these

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87.
Sulphur is melted in the sulphuric acid plant most commonly by employing

A. Electrical heater

B. Steam heater

C. Direct fuel oil fired heater

D. Gas fired furnace

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88.
With increase in carbon percentage in steel, its

A. Yield stress decreases

B. Elongation percent increases

C. Tensile strength increases

D. Impact strength increases

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89.
Coating provided on the electrodes used in the arc welding is not expected to

A. Add alloying elements

B. Prevent electrode from contamination

C. Stabilise the arc

D. Provide protective atmosphere to weld

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90.
Which of the following hardness tests does not measure the indentation hardness of metals and alloys ?

A. Vicker's hardness test

B. Shore sceleroscope test

C. Brinell hardness test

D. Rockwell hardness test

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Chemical Engineering Basics MCQ Questions & Answers | Chemical Engineering

81. Which of the following has the highest density and the lowest melting point ?

Answer & Solution

82. Machinability of hard alloys and tool steels is improved by

Answer & Solution

83. A steam carraying pipeline is insulated with two layers of insulating materials with the inferior insulation material forming the inner part. If the two insulating layers are interchanged, the heat conducted will

Answer & Solution

84. In a furnace with heating element temperature at 1700°C, the dominant machanism of heat transfer will be

Answer & Solution

85. Annealing of cast iron

Answer & Solution

86. The dimensions of Planck's constant is the same as that of the

Answer & Solution

87. Sulphur is melted in the sulphuric acid plant most commonly by employing

Answer & Solution

88. With increase in carbon percentage in steel, its

Answer & Solution

89. Coating provided on the electrodes used in the arc welding is not expected to

Answer & Solution

90. Which of the following hardness tests does not measure the indentation hardness of metals and alloys ?

Answer & Solution

Read More Section(Chemical Engineering Basics)

81.
Which of the following has the highest density and the lowest melting point ?

82.
Machinability of hard alloys and tool steels is improved by

83.
A steam carraying pipeline is insulated with two layers of insulating materials with the inferior insulation material forming the inner part. If the two insulating layers are interchanged, the heat conducted will

84.
In a furnace with heating element temperature at 1700°C, the dominant machanism of heat transfer will be

85.
Annealing of cast iron

86.
The dimensions of Planck's constant is the same as that of the

87.
Sulphur is melted in the sulphuric acid plant most commonly by employing

88.
With increase in carbon percentage in steel, its

89.
Coating provided on the electrodes used in the arc welding is not expected to

90.
Which of the following hardness tests does not measure the indentation hardness of metals and alloys ?