CHEMICAL ENGINEERING | Materials and Construction

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

Byadmin August 29, 2022

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.

CHEMICAL ENGINEERING | Thermodynamics for Chemical

Which of the following is not correct for a reversible adiabatic process ?

Which of the following is not correct for a reversible adiabatic process ?

A. TVγ-1 = constant
B. p1-γ.TY = constant
C. PVγ = constant
D. None of these

Read More Which of the following is not correct for a reversible adiabatic process ?
CHEMICAL ENGINEERING | Chemical Engineering Basics

In age-hardenable alloys, maximum ductility is obtained

Question: In age-hardenable alloys, maximum ductility is obtained
[A].

in as cast state.
[B].
immediately after solution treatment and subsequent quenching.
[C].
after optimum ageing.
[D].
after overageing.

Answer: Option C

Explanation:

No answer description available for this question.

Read More In age-hardenable alloys, maximum ductility is obtained
CHEMICAL ENGINEERING | Fluid Mechanics

A Pitot tube indicates 5 cm of water (manometer) when it is being used for measuring velocity of air. The velocity of air in m/sec is

Question: A Pitot tube indicates 5 cm of water (manometer) when it is being used for measuring velocity of air. The velocity of air in m/sec is
[A].

5
[B].
14.1
[C].
56.22
[D].
28.2

Answer: Option D

Explanation:

No answer description available for this question.

Read More A Pitot tube indicates 5 cm of water (manometer) when it is being used for measuring velocity of air. The velocity of air in m/sec is
CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

Lenz’s law results from the law of conservation of

Question: Lenz’s law results from the law of conservation of
[A].

mass
[B].
momentum
[C].
energy
[D].
none of these

Answer: Option C

Explanation:

No answer description available for this question.

Read More Lenz’s law results from the law of conservation of
CHEMICAL ENGINEERING | Mass Transfer

Flooding results in

Question: Flooding results in
[A].

high tray efficiency
[B].
low tray efficiency
[C].
high gas velocity
[D].
good contact between the fluids

Answer: Option B

Explanation:

No answer description available for this question.

Read More Flooding results in
CHEMICAL ENGINEERING | Fuels and Combustion

With increase in the time of carbonisation at a particular temperature (say 1000°C), the __________ percentage in coke oven gas increases.

Question: With increase in the time of carbonisation at a particular temperature (say 1000°C), the __________ percentage in coke oven gas increases.
[A].

hydrogen
[B].
methane
[C].
unsaturated hydrocarbons
[D].
all (a), (b) and (c)

Answer: Option A

Explanation:

No answer description available for this question.

Read More With increase in the time of carbonisation at a particular temperature (say 1000°C), the __________ percentage in coke oven gas increases.

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