Chemical Engineering - Chemical Engineering Basics

21.
Aromatics are desired constituents of
lubricating oil
diesel
kerosene
petrol
Answer: Option
Explanation:
No answer description is available. Let's discuss.

22.
Galvanic corrosion
occurs in a bimetal couple.
occurs in highly stressed metallic parts only.
is exemplified by caustic embrittlement of boiler tubes.
is also called dezincification.
Answer: Option
Explanation:
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23.
Increasing the temperature of a material makes it
harder
softer
tougher
stronger
Answer: Option
Explanation:
No answer description is available. Let's discuss.

24.
Which of the following absorbs maximum heat in a high pressure boiler ?
Economiser
Steam superheater
Air preheater
Furnace water wall
Answer: Option
Explanation:
No answer description is available. Let's discuss.

25.
The laminar boundary layer thickness in zero pressure gradient flow over a flat plate along the x-direction varies as x0.5 while the thickness of turbulent boundary layer varies as (where, x = distance from the leading edge)
x1.5
x0.8
x-1.5
x-0.8
Answer: Option
Explanation:
No answer description is available. Let's discuss.