Chemical Engineering Basics MCQ Questions & Answers | Chemical Engineering

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81.
Out of the following, which will fracture most readity, when hit with a hard hammer ?

A. Brass

B. Bronze

C. German silver

D. Cast iron

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82.
Dezincification is a form of corrosion, which specifically applies to

A. Steel

B. Brass

C. Stainless steel

D. Babbit metal

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83.
Oxyacetylene reducing flame is used while carrying out welding on

A. Alloy steel

B. Grey cast iron

C. Mild steel

D. High carbon steel

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84.
Oxyacetylene reducing flame is used while carrying out welding on

A. Alloy steel

B. Grey cast iron

C. Mild steel

D. High carbon steel

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85.
If the head is doubled in & centrifugal pump, the power required will increase in the ratio of

A. $${2^3}$$

B. $${2^{\frac{3}{2}}}$$

C. $${2^{\frac{5}{2}}}$$

D. $${2^{\frac{1}{3}}}$$

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86.
Two wires of the same radius & material having length in the ratio of 1 : 2 are stretched by the same force. The strain produced in the two wires will be in the ratio of

A. 1:1

B. 1:2

C. 2:1

D. 1:4

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87.
__________ of air does not increase with increase in temperature.

A. Density

B. Thermal diffusivity

C. Viscosity

D. Thermal conductivity

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88.
Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as

A. Re^0.5, Re^0.8

B. Re^0.8, Re^-0.5

C. Re^0.8, Re^0.5

D. Re^-0.8, Re^0.5

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89.
Oxygen cylinders used for autogenous (cutting/welding) purposes are

A. Seamless & made of steel

B. Heat treated before use

C. Made by sand casting

D. Welded steel cylinders

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90.
To improve the machinability of steel, it is generally subjected to

A. Spherodising

B. Tempering

C. Normalising

D. Annealing

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Chemical Engineering Basics MCQ Questions & Answers | Chemical Engineering

81. Out of the following, which will fracture most readity, when hit with a hard hammer ?

Answer & Solution

82. Dezincification is a form of corrosion, which specifically applies to

Answer & Solution

83. Oxyacetylene reducing flame is used while carrying out welding on

Answer & Solution

84. Oxyacetylene reducing flame is used while carrying out welding on

Answer & Solution

85. If the head is doubled in & centrifugal pump, the power required will increase in the ratio of

Answer & Solution

86. Two wires of the same radius & material having length in the ratio of 1 : 2 are stretched by the same force. The strain produced in the two wires will be in the ratio of

Answer & Solution

87. __________ of air does not increase with increase in temperature.

Answer & Solution

88. Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as

Answer & Solution

89. Oxygen cylinders used for autogenous (cutting/welding) purposes are

Answer & Solution

90. To improve the machinability of steel, it is generally subjected to

Answer & Solution

Read More Section(Chemical Engineering Basics)

81.
Out of the following, which will fracture most readity, when hit with a hard hammer ?

82.
Dezincification is a form of corrosion, which specifically applies to

83.
Oxyacetylene reducing flame is used while carrying out welding on

84.
Oxyacetylene reducing flame is used while carrying out welding on

85.
If the head is doubled in & centrifugal pump, the power required will increase in the ratio of

86.
Two wires of the same radius & material having length in the ratio of 1 : 2 are stretched by the same force. The strain produced in the two wires will be in the ratio of

87.
__________ of air does not increase with increase in temperature.

88.
Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as

89.
Oxygen cylinders used for autogenous (cutting/welding) purposes are

90.
To improve the machinability of steel, it is generally subjected to