CHEMICAL ENGINEERING

Silicon crystal can be converted to p-type semi-conductor by doping with__________________?

Byadmin February 7, 2019August 20, 2021

Silicon crystal can be converted to p-type semi-conductor by dog with__________________?

A. Phosphorous
B. Nitrogen
C. Carbon
D. Boron

CHEMICAL ENGINEERING | Chemical Process

A cane sugar factory having sugar production rate of 10 tons/day will produce about __________ tons/day of bagasse (after consumption by the factory for heating etc.).

Question: A cane sugar factory having sugar production rate of 10 tons/day will produce about __________ tons/day of bagasse (after consumption by the factory for heating etc.).
[A].

1
[B].
10
[C].
25
[D].
40

Answer: Option B

Explanation:

No answer description available for this question.

Read More A cane sugar factory having sugar production rate of 10 tons/day will produce about __________ tons/day of bagasse (after consumption by the factory for heating etc.).
CHEMICAL ENGINEERING | Furnace Technology

In low or standard frequency induction furnace, heat is produced by the

Question: In low or standard frequency induction furnace, heat is produced by the
[A].

combination of induced current and skin effect.
[B].
induction and resistance.
[C].
current flow through a heating element.
[D].
none of these.

Answer: Option B

Explanation:

No answer description available for this question.

Read More In low or standard frequency induction furnace, heat is produced by the
CHEMICAL ENGINEERING | Chemical Engineering Basics

Laser is a device to produce

Question: Laser is a device to produce
[A].

gamma rays.
[B].
microwaves.
[C].
a beam of white light.
[D].
a beam of coherent light.

Answer: Option D

Explanation:

No answer description available for this question.

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CHEMICAL ENGINEERING | Fuels and Combustion

Deficiency of combustion air during combustion of a gaseous fuel

Question: Deficiency of combustion air during combustion of a gaseous fuel
[A].

lengthens the flame.
[B].
causes heat loss of fuel by its partial combustion.
[C].
both (a) & (b).
[D].
shortens the flame.

Answer: Option C

Explanation:

No answer description available for this question.

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CHEMICAL ENGINEERING | Fluid Mechanics

It is possible to integrate an automatic flow controller to a

Question: It is possible to integrate an automatic flow controller to a
[A].

flow nozzle
[B].
venturimeter
[C].
rotameter
[D].
none of these

Answer: Option C

Explanation:

No answer description available for this question.

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CHEMICAL ENGINEERING | Fertiliser Technology

Gas based fertiliser plants use

Question: Gas based fertiliser plants use
[A].

natural gas as a source of hydrogen.
[B].
natural gas as heating medium.
[C].
coal gas as a source of hydrogen.
[D].
coal gas as heating medium.

Answer: Option A

Explanation:

No answer description available for this question.

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