Addition of silicon to cast iron ___________________?

Byadmin February 7, 2019August 20, 2021

Addition of silicon to cast iron ___________________?

A. Promotes graphite module formation
B. Improves its ductility
C. Does not promote graphite flakes formation
D. Increases the fluidity of molten metal

CHEMICAL ENGINEERING | Fluid Mechanics

Multistage compressors are used in industry, because they

Question: Multistage compressors are used in industry, because they
[A].

reduce the cost of compressor.
[B].
reduce the size requirement,
[C].
resemble closely to isothermal compression.
[D].
are easy to control.

Answer: Option C

Explanation:

No answer description available for this question.

Read More Multistage compressors are used in industry, because they
CHEMICAL ENGINEERING | Chemical Process

Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at __________ °C.

Question: Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at __________ °C.
[A].

15-30
[B].
90-100
[C].
250-300
[D].
<0

Answer: Option A

Explanation:

No answer description available for this question.

Read More Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at __________ °C.
CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

In any spontaneous process,

Question: In any spontaneous process,
[A].

only F decreases
[B].
only A decreases
[C].
both F and A decreases
[D].
both F and A increase

Answer: Option C

Explanation:

No answer description available for this question.

Read More In any spontaneous process,
CHEMICAL ENGINEERING | Chemical Engineering Basics

With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and __________ is not affected.

Question: With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and __________ is not affected.
[A].

impact strength
[B].
percent elongation
[C].
hardness
[D].
both ‘b’ & ‘c’

Answer: Option A

Explanation:

No answer description available for this question.

Read More With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and __________ is not affected.
CHEMICAL ENGINEERING | Chemical Engineering Basics

Absolute zero, pressure will occur, when the molecular momentum of the system becomes zero. A liquid will cease to exist as liquid at

Question: Absolute zero, pressure will occur, when the molecular momentum of the system becomes zero. A liquid will cease to exist as liquid at
[A].

high vacuum
[B].
zero pressure
[C].
0°K
[D].
earth’s centre

Answer: Option B

Explanation:

No answer description available for this question.

Read More Absolute zero, pressure will occur, when the molecular momentum of the system becomes zero. A liquid will cease to exist as liquid at
CHEMICAL ENGINEERING | Mass Transfer

Advantage of continuous drying over batch drying is that the

Question: Advantage of continuous drying over batch drying is that the
[A].

drying cost per unit weight of dried product is less.
[B].
product with more uniform moisture content is produced.
[C].
equipment size required is smaller.
[D].
all ‘a’, ‘b’ & ‘c’

Answer: Option D

Explanation:

No answer description available for this question.

Read More Advantage of continuous drying over batch drying is that the

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