Materials and Construction

The specific gravity of coal depends mainly on its ______________ content?

Byadmin March 10, 2019August 27, 2021

The specific gravity of coal depends mainly on its ______________ content?

A. Carbon
B. Volatile matter
C. Ash
D. Moisture

CHEMICAL ENGINEERING | Materials and Construction

With increase in carbide/graphite ratio in cast iron, its

Question: With increase in carbide/graphite ratio in cast iron, its
[A].

hardness & brittleness increases.
[B].
ductility decreases.
[C].
both (a) and (b).
[D].
neither (a) nor (b).

Answer: Option C

Explanation:

No answer description available for this question.

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CHEMICAL ENGINEERING | Materials and Construction

Lead lined equipments & vessels are suitable for handling

Question: Lead lined equipments & vessels are suitable for handling
[A].

hydrochloric acid (10%).
[B].
nitric acid.
[C].
sulphuric acid upto 60°C.
[D].
all (a), (b) and (c).

Answer: Option C

Explanation:

No answer description available for this question.

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Materials and Construction

Which has the maximum melting point out of the following ?

Which has the maximum melting point out of the following ?

A. Steel
B. Cast iron
C. Stainless steel
D. Wrought iron

Read More Which has the maximum melting point out of the following ?
Materials and Construction

Hardened steel is softened by___________________?

Hardened steel is softened by___________________?

A. Normalising
B. Tempering
C. Annealing
D. Carburising

Read More Hardened steel is softened by___________________?
Materials and Construction

Cermets are ______________ materials?

Cermets are ______________ materials?

A. Refractory
B. Reinforced
C. Abrasive
D. Fully metallic

Read More Cermets are ______________ materials?
Materials and Construction

The ‘bomb’ in the bomb calorimeter is made of___________________?

The ‘bomb’ in the bomb calorimeter is made of___________________?

A. Molybdenum stainless steel
B. Mild steel
C. High silicon iron (14% Si)
D. Copper

Read More The ‘bomb’ in the bomb calorimeter is made of___________________?

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