Chemical Engineering - Chemical Engineering Basics

26. 

Production of one ton of steel plate in a modern integrated steel plant in India consumes about __________ kWh of electricity.

A. 50
B. 250
C. 450
D. 850

Answer: Option C

Explanation:

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27. 

Ceramic tips for the cutting tool are prepared from __________ powder.

A. carbon
B. silicon carbide
C. aluminium oxide
D. tungsten

Answer: Option C

Explanation:

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28. 

Fatigue strength of a metal is improved by

A. overstressing.
B. scratching the surface.
C. raising the temperature.
D. understressing.

Answer: Option D

Explanation:

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29. 

Saturated steam at a pressure of 25 kg/cm2 is throttled to attain 5 kg/cm2 . Then the outcoming steam will be

A. wet
B. saturated
C. superheated
D. none of these

Answer: Option C

Explanation:

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30. 

An "orange peel" effect is observed

A. as a defect during metal casting/ welding.
B. during deep drawing of metallic sheet having large grain size.
C. during faulty heat treatment of steel.
D. during extrusion of metal through a die.

Answer: Option B

Explanation:

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