211. Nuclear reactors are used
to produce heat for thermoelectric power
to produce fissionable material
to propel ships, submarines, aircrafts
all of these
✅ The correct answer is option D.
IC Engines and Nuclear Power Plants MCQs
212. A moderator generally used in nuclear power plants is
graphite
heavy water
concrete
graphite and concrete
✅ The correct answer is option D.
213. The purpose of testing an internal combustion engine is
to determine the information, which can not be obtained by calculations
to conform the data used in design, the validity of which may be doubtful
to satisfy the customer regarding the performance of the engine
all of the above
✅ The correct answer is option D.
214. In a diesel engine, the duration between the time of injection and ignition, is known as
pre-ignition period
delay period
period of ignition
burning period
✅ The correct answer is option B.
215. The basic requirement of a good combustion chamber is
minimum turbulence
low compression ratio
high thermal efficiency and power output
low volumetric efficiency
✅ The correct answer is option C.
216. The pressure inside the cylinder is __________ the atmospheric pressure during the exhaust stroke.
equal to
below
above
✅ The correct answer is option C.
217. The thermal efficiency of diesel engines on weak mixtures is
unaffected
lower
higher
dependent on other factors
✅ The correct answer is option C.
218. Reactors for propulsion applications are designed for
any form of uranium
natura uranium
enriched uranium
plutonium
✅ The correct answer is option C.
219. Ordinary water is sometimes used as moderator when enriched uranium is used as a fuel in nuclear power plants.
Yes
No
✅ The correct answer is option A.
220. In diesel engines, the fuel is injected in the form of very fine spray, into the engine cylinder, which gets ignited due to high temperature of the compressed air.
Agree
Disagree
✅ The correct answer is option A.