IC Engines and Nuclear Power Plants Questions

• The sparking in a petrol engine increases pressure and temperature of the products of combustion, but the volume remains constant.
• The engines in which the combustion of fuel takes place inside the engine cylinder are called internal combustion engines.
• In a four stroke cycle petrol engine, the pressure inside the engine cylinder during the suction stroke is __________ the atmospheric pressure.
• The turbine of the turbo-prop engine is __________ that of the turbo-jet engine.
• The injection of fuel by external source is not required in case of engines working on Otto cycle.
• In a petrol engine, if diesel is used, then the engine will
• A two stroke cycle engine occupies larger floor area than a four stroke cycle engine.
• A gas engine has a swept volume of 300 cm3 and clearance volume of 25 cm3. Its volumetric efficiency is 0.88 and mechanical efficiency is 0.90. The volume of the mixture taken in per stroke is
• The specific fuel consumption per B.P. hour for a petrol engine is about
• The pressure at the end of compression, in petrol engines, is approximately
• The combustion in compression ignition engines is
• In a petrol engine, the charge is ignited with the help of a spark plug.
• In order to prevent knocking in spark ignition engines, the charge away from the spark plug should have
• Spark plugs in automobiles generally have a gap between
• A reactor capable of converting a fertile material into fissile isotopes is called regenerative reactor.
• Which of the following statement is wrong?
• The reflectivity of a reflector is defined as the fraction of neutrons entering the reflector which are returned to the core.
• Which of the following fuel detonates readily?
• The knocking tendency in spark ignition engines may be decreased by
• Number of working strokes per min. for a two stroke cycle engine are __________ the speed of the engine in r.p.m.