Chemical Engineering - Chemical Engineering Basics

21. 

Cold chiesel & hammers are made of

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

Answer: Option B

Explanation:

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22. 

Which of the following does not lower the surface tension of liquids ?

A. Fat
B. Soap
C. Detergent
D. Surfactant

Answer: Option A

Explanation:

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23. 

__________ property of a material is determined by the Herbert Pendulum device.

A. Hardness
B. Tensile
C. Toughness
D. Compressive

Answer: Option A

Explanation:

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24. 

Cathodic protection is widely used in controlling corrosion in

A. high pressure vessels.
B. marine structure & underground pipelines.
C. overhead fuel gas pipelines.
D. overhead water pipelines.

Answer: Option B

Explanation:

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25. 

Methyl orange indicator turns

A. orange yellow in alkaline medium.
B. orange yellow in acidic medium.
C. colourless in acidic medium.
D. colourless in basic medium.

Answer: Option A

Explanation:

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