U234 = 0.006%, U235 = 0.712% and U238 = 99.282%
U234 = 0.712%, U235 = 0.006% and U238 = 99.282%
U234 = 99.282%, U235 = 0.006% and U238 = 0.712%
U234 = 0.006%, U235 =
✅ The correct answer is option A.
IC Engines and Nuclear Power Plants MCQs
112. Which of the following does not relate to a compression ignition engine?
Fuel pump
Fuel injector
Governor
Carburettor
✅ The correct answer is option D.
113. The thermal efficiency of a petrol engine is __________ as compared to diesel engine.
same
less
more
✅ The correct answer is option B.
114. Supercharging __________ the power developed by the engine.
has no effect on
increases
decreases
✅ The correct answer is option B.
115. The knocking in diesel engines may be prevented by
reducing the delay period
raising the compression ratio
increasing the inlet pressure of air
all of these
✅ The correct answer is option D.
116. The reflectivity depends upon
geometry of the reflector
energy of neutrons
properties of the reflector
all of these
✅ The correct answer is option D.
117. The indicated mean effective pressure of an engine is obtained from the indicator diagram drawn with the help of an engine indicator.
TRUE
FALSE
✅ The correct answer is option A.
118. Number of working strokes per min. for a two stroke cycle engine are __________ the speed of the engine in r.p.m.
equal to
one-half
twice
four-times
✅ The correct answer is option A.
119. The turbine of the turbo-prop engine is __________ that of the turbo-jet engine.
same as
smaller than
bigger than
✅ The correct answer is option C.
120. During idling, a petrol engine requires __________ mixture.
lean
rich
chemically correct
✅ The correct answer is option B.