AnsweringExams.Com

Deaeration of high pressure boiler feed water is done to reduce

August 12, 2022 by admin

Question: Deaeration of high pressure boiler feed water is done to reduce
[A].

foaming from boilers.

[B].

its dissolved oxygen content.

[C].

its silica content.

[D].

caustic embrittlement.

Answer: Option B

Explanation:

No answer description available for this question.

Irradiation of water by ultraviolet light of suitable wavelength is commonly used for disinfection of water in

August 12, 2022 by admin

Question: Irradiation of water by ultraviolet light of suitable wavelength is commonly used for disinfection of water in
[A].

food industry.

[B].

municipal sewage treatment.

[C].

petroleum refinery.

[D].

iron & steel plant.

Answer: Option A

Explanation:

No answer description available for this question.

Murderers, gangsters and crooks referred to in the passage given above

August 12, 2022 by admin

Question: Murderers, gangsters and crooks referred to in the passage given above
[A].

always manage to get away

[B].

are often glorified in detective stories

[C].

are wiser than their victims

[D].

know how to escape from law

Answer: Option B

Explanation:

No answer description available for this 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

August 12, 2022 by admin

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.

COD of raw municipal sewage may be in the range of about __________ mg/litre.

August 12, 2022 by admin

Question: COD of raw municipal sewage may be in the range of about __________ mg/litre.
[A].

1-2

[B].

5-10

[C].

90-120

[D].

1500-2500

Answer: Option C

Explanation:

No answer description available for this question.

BOD of raw municipal sewage may be in the range of about __________ mg/litre.

August 12, 2022 by admin

Question: BOD of raw municipal sewage may be in the range of about __________ mg/litre.
[A].

1-2

[B].

5-10

[C].

150-300

[D].

2000-3000

Answer: Option C

Explanation:

No answer description available for this question.

8, 14, 26, 48, 98, 194, 386

August 12, 2022 by admin

Question: 8, 14, 26, 48, 98, 194, 386
[A].

[B].

[C].

[D].

194

Answer: Option B

Explanation:

The correct pattern is x 2 – 2.

So, 48 is wrong and must be replaced by (26 x 2 – 2) i.e. 50.

According to be passage given above, detective stories

August 12, 2022 by admin

Question: According to be passage given above, detective stories
[A].

make interesting reading

[B].

are hardly worth reading

[C].

encourage readers to content crimes

[D].

tend to create wrong notion about crimes and punishment

Answer: Option D

Explanation:

No answer description available for this question.

Corrosion in boilers can be prevented by

August 12, 2022 by admin

Question: Corrosion in boilers can be prevented by
[A].

deaeration of feed water.

[B].

enhancing pH of feed water by adding alkali.

[C].

feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion.

[D].

all (a), (b) and (c).

Answer: Option D

Explanation:

No answer description available for this question.

Foaming and priming in boiler operation can be reduced by reduction in __________ in feed water.

August 12, 2022 by admin

Question: Foaming and priming in boiler operation can be reduced by reduction in __________ in feed water.
[A].

turbidity

[B].

color (Hazen)

[C].

total solids

[D].

all (a), (b) & (c)

Answer: Option D

Explanation:

No answer description available for this question.