Chemical Engineering - Chemical Engineering Basics

46. 

Cold chiesel's hammers are made of

A. high speed steel
B. high carbon steel
C. forged steel
D. mild steel

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

47. 

In the X-ray radiography technique, the tube voltage for thicker plates as compared to thin plates, should be

A. higher, as it gives higher wavelength.
B. lower, as it gives higher wavelength.
C. higher, as it gives shorter wavelength.
D. lower, as it gives shorter wavelength.

Answer: Option C

Explanation:

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48. 

Atomic __________ is a whole number for an element.

A. number
B. weight
C. radius
D. none of these

Answer: Option A

Explanation:

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49. 

Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________ kJ.

A. +4000
B. -4000
C. 10000
D. - 10000

Answer: Option A

Explanation:

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50. 

Highest cutting speed is achieved by the __________ tool material.

A. high speed steel
B. carbide
C. cast alloy
D. plain carbon steel

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

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