Chemical Engineering - Chemical Engineering Basics

31. 

__________ can replace tungsten in high speed steel.

A. Chromium
B. Vanadium
C. Cobalt
D. Molybdenum

Answer: Option C

Explanation:

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32. 

Production of one ton of paper in Indian paper industry consumes about __________ kWh of electricity.

A. 300
B. 800
C. 1400
D. 2000

Answer: Option C

Explanation:

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33. 

Fatigue strength of a material can not be increased by

A. cold working
B. hot working
C. shot peening
D. any of these

Answer: Option B

Explanation:

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34. 

Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal

A. tensile strength.
B. compressive strength.
C. Young's modulus.
D. thermal co-efficient of expansion.

Answer: Option D

Explanation:

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35. 

Out of the following the refractive index is the highest for

A. glass
B. diamond
C. brine
D. kerosene

Answer: Option B

Explanation:

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