Carbonates
Bi-carbonates
Chlorides
Sulphides
✅ The correct answer is option B.
Chemical Engineering MCQs
Quicksand is an example of a __________ fluid.
Bingham plastic
Dilatent
Newtonion
Pseudoplastic
✅ The correct answer is option B.
__________ plant emits large amount of SO₂ as an air pollutant.
Nitric acid
Sulphuric acid
Chloralkali
Iron & steel
✅ The correct answer is option B.
World environment day is observed every year on the 5th of
June
December
July
September
✅ The correct answer is option A.
Pumping of a corrosive liquid is generally preferred to be done by a __________ pump, as it can be made of a variety of materials including plastics.
Piston
Gear
Positive displacement
Sump
✅ The correct answer is option B.
Threshold Limit Value (TLV) is the maximum allowable concentration (i.e. safe limit) of pollutants in air. Safe limit for SO₂ in air is __________ ppm.
5
500
1000
2000
✅ The correct answer is option A.
The effect of increase in carbon dioxide level of the atmosphere and its profound effect on our climate is called the
Catalytic conversion
Green house effect
Global warming
Both B and C
✅ The correct answer is option D.
A particle A of diameter 10 microns settles in an oil of specific gravity 0.9 and viscosity 10 poise under Stoke’s law. A particle B with diameter 20 microns settling in the same oil will have a settling velocity
Same as that of A
One fourth as that of A
Twice as that of A
Four times as that of A
✅ The correct answer is option B.
Reingleman chart No. 2 corresponds to __________ percent black smoke.
10
20
40
80
✅ The correct answer is option C.
High concentration of carcinogenic hydrocarbon pollutants in atmospheric air causes
Cancer
Silicosis
Respiratory disease (e.g., asthma)
Reduced crop yield
✅ The correct answer is option A.