Carbon monoxide poisoning may cause
A.headache
B.drowsiness
C.dizziness
D.Any of the above
Category: Environmental Engineering Mcqs
Which of the following can have octane rating of more than 100?
A.Gobar gas
B.Methyl alcohol
C.Benzol
D.Ethyl alcohol
Which of the following pollutant results from decaying organic matter?
A.Acetylene
B.Ozone
C.Ammonia
D.Nitric oxide
Temporary hardness in water in caused by salts like
A.Sulphates
B.Nitrates
C.Chlorides
D.Carbonates
E.All of the above
A hard water may contain
A.Calcium carbonate
B.Magnesium sulphate
C.Magnesium bicarbonate
D.Any of the above
E.None of the above
For portable water the permissible pH value is
A.1 – 4.5
B.4.5 – 7
C.7 – 8.5
D.9 — 11
E.11 — 14
What is a laser?
A.Electro-magnetic waves
B.Ultrasonic waves
C.Supersonic waves
D.Light amplification by stimulated emission of radiation
Which of the following symptoms will not show that combustion is necessarily complete?
A.Presence of free carbon is exhaust
B.Presence of carbon monoxide in exhaust
C.Presence of oxygen in exhaust
D.Presence of nitrogen in exhaust
Which of the following plant is highly sensitive to mercury vapour?
A.Sunflower
B.Ivy
C.Aloc
D.Cherry
E.Sarcococca
