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Environmental Engineering in CE

Environmental Engineering in CE
Ethanolamine is an absorbant used for the removal of __________ from air/gas.

HF
Both B & C
H₂S
SO₂

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

125
100
145
80

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Environmental Engineering in CE
A standard test for determination of hardness in water is termed as __________ test.

Total count
EDTA
Electometric
Presumptive

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Environmental Engineering in CE
Reingleman chart No. 2 corresponds to __________ percent black smoke.

80
20
10
40

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Environmental Engineering in CE
Growth of __________ is promoted by the presence of manganese in water.

Algae
Micro-organisms
Files
Mosquitoes

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Environmental Engineering in CE
Threshold limit value (TLV) i.e., the maximum permissible safe limit of phosgene gas which Hitler used to use to kill his enemies in 'gas chamber' is about __________ ppm.

10-100
100-200
100-1000

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