Chemical Engineering - Chemical Engineering Basics

21. 

Springback in sheet metal bending depends on the

A. elastic limit
B. bend radius
C. degree of bend
D. thickness of sheet

Answer: Option D

Explanation:

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22. 

The yield point in fatigue loading compared to that in static loading is less. The ratio of ultimate tensile strength to endurance limit of a material subjected to fatigue loading is

A. 0.5
B. 1
C. 1.5
D. 2

Answer: Option D

Explanation:

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23. 

Which of the following is not used as a fuel in rocket propellaht ?

A. Liquid hydrogen
B. Liquid oxygen
C. Liquid hydrazine
D. Kerosene oil

Answer: Option B

Explanation:

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24. 

Hypo (sodium thiosulphate) because of its complex forming behaviour is used in photography to remove undecomposed silver bromide as a soluble complex for __________ of the picture.

A. printing
B. developing
C. colour
D. fixation

Answer: Option B

Explanation:

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25. 

Temperature of hot gases flowing in a pipe is measured by a thermocouple inserted in the thermal well. The thermal well made of __________ will facilitate the most accurate measurement of the temperature.

A. copper
B. steel
C. aluminium
D. brass

Answer: Option A

Explanation:

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