Which of the following area of work needs lowest level of illumination?
A.Engraving
B.Cloth inspection
C.Assembly of instrument
D.Paper converting processes
Category: Environmental Engineering Mcqs
Water gas is a mixture of
A.CO and H2
B.N2 and H2
C.CO2 and N2
D.SO2, CO2 and N2
How many kg of air will contain one kg of oxygen?
A.1 kg
B.4.35 kg
C.8.70 kg
D.12.5 kg
Sulphurdioxide can be measured by
A.ultraviolet pulsed fluorescence
B.flame photography
C.permeation tube calibratio
D.Any of the above
The disadvantage of hard water is
A.More soap consumption
B.Scale formation in boilers
C.Corrosion of pipes
D.Loss of taste in food
E.All of the above
The most frequent method of bacterial reproduction is by
A.Cell division
B.Sexual process
C.Budding
D.Colony formation
E.The formation of spores
Which fuel will have least air consumption per kg of fuel during consumption?
A.Gasoline
B.Benzol
C.Spirit
D.Lubricating oil
The permissible hardness of water for low pressure boiler is
A.50 mg/litre
B.150 mg/litre
C.250 mg/litre
D.350 kg/litre
E.450 mg/litre
Odours are generally expressed in terms of
A.Hardness number
B.Gravity number
C.Index number
D.Threshold number
E.None of the above
Which of the following units measures the memory of the Computer?
A.Volts
B.Amperes
C.Ohms
D.Bits
