Which of the following methods of analysis of water distribution system is most suitable for long and narrow pipe system ?

Question: Main pollutants released from petroleum refineries is
[A].

CO, SO2 & H2S.

[B].

CO2, NO & SO3.

[C].

CO2, H2S & NO2.

[D].

SO3, NO2 & CO2.

Answer: Option A

Explanation:

No answer description available for this question.

Question: As per the world health organisation (WHO) specification, the maximum permissible concentration (i.e., TLV) of particulate matter in air is __________ μg/m3.(μg-microgram)
[A].

10

[B].

90

[C].

800

[D].

750

Answer: Option B

Explanation:

No answer description available for this question.

Question: Major sources of noise in furnace operation arises from air inspirators, combustion, side wall vibrations and fluctuation in the process heat load. A 50% increase in fuel firing rate may increase the furnace noise level by about __________ decibels.
[A].

3

[B].

30

[C].

70

[D].

100

Answer: Option A

Explanation:

No answer description available for this question.

Question: Ionisation potential employed in the industrial electrostatic precipitator is of the order of
[A].

30 to 70 kV DC

[B].

30 to 70 kV AC

[C].

230 V AC

[D].

230 V DC

Answer: Option A

Explanation:

No answer description available for this question.