CHEMICAL ENGINEERING | Chemical Engineering Basics

Lithium is a useful alloying addition to aluminium, because it

Byadmin August 8, 2022

Question: Lithium is a useful alloying addition to aluminium, because it
[A].

is cheap.

[B].

imparts solid solution strengthening.

[C].

lowers density and contributes to age hardening.

[D].

improves the corrosion resistance of aluminium.

Answer: Option D

Explanation:

No answer description available for this question.

Chemical Engineering Basics

What is the value of entropy at 273°K ?

What is the value of entropy at 273°K ?

A. 0
B. 1
C. ∞
D. None of these

Read More What is the value of entropy at 273°K ?
Chemical Engineering Basics

Pressure required to increase the density of water by about 1% is ____________________ atmosphere?

Pressure required to increase the density of water by about 1% is ____________________ atmosphere?

A. 10
B. 50
C. 200
D. 1000

Read More Pressure required to increase the density of water by about 1% is ____________________ atmosphere?
Chemical Engineering Basics

The ‘transition temperature’ for ductile to brittle behavior of steel increases with increase in the _____________ content in steel?

The ‘transition temperature’ for ductile to brittle behavior of steel increases with increase in the _____________ content in steel?

A. Carbon
B. Manganese
C. Both A nor B
D. Neither A nor B

Read More The ‘transition temperature’ for ductile to brittle behavior of steel increases with increase in the _____________ content in steel?
CHEMICAL ENGINEERING | Chemical Engineering Basics

For separating small pieces of metal from engine oil of a car, the best separating technique is the

Question: For separating small pieces of metal from engine oil of a car, the best separating technique is the
[A].

chromatography
[B].
evaporation
[C].
filtration
[D].
fractional distillation

Answer: Option C

Explanation:

No answer description available for this question.

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CHEMICAL ENGINEERING | Fuels and Combustion

A travelling grate stoker is meant for the efficient burning of __________ coal.

Question: A travelling grate stoker is meant for the efficient burning of __________ coal.
[A].

caking
[B].
pulverised
[C].
non-caking
[D].
high ash

Answer: Option C

Explanation:

No answer description available for this question.

Read More A travelling grate stoker is meant for the efficient burning of __________ coal.
Chemical Engineering Basics

With decrease in the grain size of a material, its creep resistance___________________?

With decrease in the grain size of a material, its creep resistance___________________?

A. Increases
B. Decreases
C. Remain constant
D. Either A. or B.; depends on the material

Read More With decrease in the grain size of a material, its creep resistance___________________?

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