Chemical Engineering Basics MCQ Questions & Answers | Chemical Engineering

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91.
Dislocation cross-slip is difficult in those materials, which have

A. Large number of slip systems

B. High work hardening rate

C. Coarse grain size

D. Low stacking fault energy

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92.
The most economical channel section for the fluid flow is the one for which the discharge is maximum for a given cross-sectional area. Vertical velocity distribution in an open channel for laminar flow can be assumed to be

A. Parabolic

B. Hyperbolic

C. Straight line

D. None of these

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93.
__________ the exhaust gas is an indication of the incomplete combustion of fuel.

A. Low temperature of

B. High temperature of

C. High % of CO in

D. High % of CO₂ in

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94.
The softness or hardness of a grinding wheel depends upon the type & amount of bonding material used. For general purpose cutter grinding __________ grinding wheel is normally used.

A. Hard

B. Soft

C. Silicon carbide

D. Aluminium oxide

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95.
Glycerene is used as a coolant in cooling of some engines instead of water, because

A. Its higher boiling point (290°C) increases its heat carrying capacity

B. Compartively less weight of coolant is required

C. Smaller radiator can be used

D. All of the above

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96.
For the running of power generating turbines, the steam used should be

A. Wet

B. Superheated

C. At ordinary pressure

D. None of these

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97.
The material used for coating the welding electrode is termed as the

A. Flux

B. Slag

C. Protective layer

D. Binder

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98.
Drossing is a __________ operation.

A. Smelting

B. Dressing

C. Roasting

D. None of the above

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99.
Grinding wheel made of silicon carbide is most suitable for grinding materials of low tensile strength (e.g; tough bronze). Grinding is a __________ operation.

A. Turning

B. Dressing

C. Forming

D. Surface finishing

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100.
In an amorphous material, atoms defy any definite atomic structure and exist in random pattern just like in liquid. Which of the following is an amorphous material?

A. Tin

B. Lead

C. Zinc

D. Glass

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Chemical Engineering Basics MCQ Questions & Answers | Chemical Engineering

91. Dislocation cross-slip is difficult in those materials, which have

Answer & Solution

92. The most economical channel section for the fluid flow is the one for which the discharge is maximum for a given cross-sectional area. Vertical velocity distribution in an open channel for laminar flow can be assumed to be

Answer & Solution

93. __________ the exhaust gas is an indication of the incomplete combustion of fuel.

Answer & Solution

94. The softness or hardness of a grinding wheel depends upon the type & amount of bonding material used. For general purpose cutter grinding __________ grinding wheel is normally used.

Answer & Solution

95. Glycerene is used as a coolant in cooling of some engines instead of water, because

Answer & Solution

96. For the running of power generating turbines, the steam used should be

Answer & Solution

97. The material used for coating the welding electrode is termed as the

Answer & Solution

98. Drossing is a __________ operation.

Answer & Solution

99. Grinding wheel made of silicon carbide is most suitable for grinding materials of low tensile strength (e.g; tough bronze). Grinding is a __________ operation.

Answer & Solution

100. In an amorphous material, atoms defy any definite atomic structure and exist in random pattern just like in liquid. Which of the following is an amorphous material?

Answer & Solution

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91.
Dislocation cross-slip is difficult in those materials, which have

92.
The most economical channel section for the fluid flow is the one for which the discharge is maximum for a given cross-sectional area. Vertical velocity distribution in an open channel for laminar flow can be assumed to be

93.
__________ the exhaust gas is an indication of the incomplete combustion of fuel.

94.
The softness or hardness of a grinding wheel depends upon the type & amount of bonding material used. For general purpose cutter grinding __________ grinding wheel is normally used.

95.
Glycerene is used as a coolant in cooling of some engines instead of water, because

96.
For the running of power generating turbines, the steam used should be

97.
The material used for coating the welding electrode is termed as the

98.
Drossing is a __________ operation.

99.
Grinding wheel made of silicon carbide is most suitable for grinding materials of low tensile strength (e.g; tough bronze). Grinding is a __________ operation.

100.
In an amorphous material, atoms defy any definite atomic structure and exist in random pattern just like in liquid. Which of the following is an amorphous material?