Normally the colour of exhaust from a diesel engine is
A.black
B.white
C.yellow
D.reddish
Category: Engineeeing Mcqs
At the boiling point of the liquid at the prevailing pressure the saturated absolute humidity becomes
A.one
B.zero
C.infinity
D.none of the above
The handling capacity of a drag line having bucket of one cubic metre capacity is expected to be least while handling
A.Clay, wet sticky
B.Clay, hard tough
C.Sand
D.Gravel.
The temperature maintained in the electrical desalters is normally in the range of
A.200 to 220?C
B.120 to 130?C
C.40 to 50?C
D.250 to 275?C
A relay for protective system should have
A.High speed operation
B.High sensitivity
C.Selectivity
D.Reliability
E.All of the above
A chimney is not a part of which of the following type of power plant?
A.Steam power plant
B.Diesel engine power plant
C.Gas turbine power plant
D.Hydro-electric power plant
E.All of the above
In case of involute gears
A.Interference is inherently absent
B.A convex flank is always in contact with concave flank
C.Variation in centre distance of shafts increases radial force
D.Pressure angle is constant throughout the teeth engagement
E.None of the above
The cause of slow growth of national income in India is
A.rapid population growth
B.deficiency in investment
C.high capital output ratio
D.All of the above
The half-life period of a radioactive element is 10 years. How long it takes to reduce to 12.5% of its original weight?
A.20 years
B.30 years
C.40 years
D.125 years
