CHEMICAL ENGINEERING | Environmental Engineering

Noise level inside a jet air liner in normal flight is about __________ decibels.

Byadmin August 13, 2022

Question: Noise level inside a jet air liner in normal flight is about __________ decibels.
[A].

[B].

100

[C].

125

[D].

145

Answer: Option B

Explanation:

No answer description available for this question.

CHEMICAL ENGINEERING | Fluid Mechanics

For pipes that must be broken at intervals for maintenance, the connector used should be a/an

Question: For pipes that must be broken at intervals for maintenance, the connector used should be a/an
[A].

union
[B].
tee
[C].
reducer
[D].
elbow

Answer: Option A

Explanation:

No answer description available for this question.

Read More For pipes that must be broken at intervals for maintenance, the connector used should be a/an
CHEMICAL ENGINEERING | Chemical Engineering Thermodynamics

Free energy, fugacity and activity co-efficient are all affected by change in the temperature. The fugacity co-efficient of a gas at constant pressure ____with the increase of reduced temperature.

Question: Free energy, fugacity and activity co-efficient are all affected by change in the temperature. The fugacity co-efficient of a gas at constant pressure ____with the increase of reduced temperature.
[A].

decreases
[B].
increases
[C].
remains constant
[D].
decreases logarithmically

Answer: Option B

Explanation:

No answer description available for this question.

Read More Free energy, fugacity and activity co-efficient are all affected by change in the temperature. The fugacity co-efficient of a gas at constant pressure ____with the increase of reduced temperature.
CHEMICAL ENGINEERING | Environmental Engineering

Disinfection of water is done to destroy pathogenic bacteria and thus prevent water-borne diseases. Disinfection of water may be done by the use of

Question: Disinfection of water is done to destroy pathogenic bacteria and thus prevent water-borne diseases. Disinfection of water may be done by the use of
[A].

ozone and iodine.
[B].
chlorine or its compounds.
[C].
ultraviolet light for irradiation of water.
[D].
all (a), (b) & (c).

Answer: Option D

Explanation:

No answer description available for this question.

Read More Disinfection of water is done to destroy pathogenic bacteria and thus prevent water-borne diseases. Disinfection of water may be done by the use of
CHEMICAL ENGINEERING | Polymer Technology

Polypropylene is preferred to polythene, because the former is

Question: Polypropylene is preferred to polythene, because the former is
[A].

non-inflammable
[B].
harder
[C].
stronger
[D].
both(b) & (c)

Answer: Option D

Explanation:

No answer description available for this question.

Read More Polypropylene is preferred to polythene, because the former is
CHEMICAL ENGINEERING | Chemical Engineering Basics

Failure of a material is attributed to __________ if it fails below its yield point.

Question: Failure of a material is attributed to __________ if it fails below its yield point.
[A].

impact loading
[B].
fatigue
[C].
creep
[D].
straining

Answer: Option B

Explanation:

No answer description available for this question.

Read More Failure of a material is attributed to __________ if it fails below its yield point.
CHEMICAL ENGINEERING | Chemical Engineering Basics

Addition of small amount of __________ to grey cast iron is done to produce nodular grey cast iron.

Question: Addition of small amount of __________ to grey cast iron is done to produce nodular grey cast iron.
[A].

manganese
[B].
phosphorous
[C].
magnesium
[D].
chromium

Answer: Option C

Explanation:

No answer description available for this question.

Read More Addition of small amount of __________ to grey cast iron is done to produce nodular grey cast iron.

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