Q181
Open questionThe advancing of spark timing in spark ignition engines will _________ knocking tendency.
Select an option to see the answer and solution.
Mechanical Engineering · all questionsInternal Combustion Engines (I.C. Engines)
Internal Combustion Engines (I.C. Engines)
practice.
Practice every MCQ with options. Use Show answers when you want the correct option and solution.
247
Questions
10/13
Page
Pick an option on a question to see the right answer and solution.
Q182
Open questionThe higher combustion chamber wall temperature in compression ignition engines will _________ knocking tendency.
Select an option to see the answer and solution.
Q183
Open questionIn petrol engines, advancing of the spark timing will _________ the knocking tendency.
Select an option to see the answer and solution.
Q184
Open questionIn petrol engine, using a fixed octane rating fuel and fixed compression ratio, supercharging will _________ the knocking tendency.
Select an option to see the answer and solution.
Q185
Open questionThe increase of cooling water temperature in petrol engine will _________ the knocking tendency.
Select an option to see the answer and solution.
Q186
Open questionFlash point of fuel oil is
Select an option to see the answer and solution.
Q187
Open questionThe working pressure and temperature inside the cylinder of an internal combustion engine is _________ as compared to a steam engine.
Select an option to see the answer and solution.
Q188
Open questionIf V1 is the jet velocity and V0 is the vehicle velocity, then the propulsive efficiency of a rocket is given by
Select an option to see the answer and solution.
Q189
Open questionThermal efficiency of a two stroke cycle engine is _________ a four stroke cycle engine.
Select an option to see the answer and solution.
Q190
Open questionTheoretically, a four stroke cycle engine should develop _________ power as that of a two stroke cycle engine.
Select an option to see the answer and solution.
Q191
Open questionWhich of the following is not an intern’s combustion engine?
Select an option to see the answer and solution.
Q192
Open questionThe working cycle in case of four stroke engine is completed in following number of revolutions of crankshaft
Select an option to see the answer and solution.
Q193
Open questionThe following volume of air is required for consuming 1 liter of fuel by a four stroke engine
Select an option to see the answer and solution.
Q194
Open questionPick up the wrong statement about supercharging
Select an option to see the answer and solution.
Q195
Open questionThe voltage required to produce a spark across the gap, between the sparking points is
Select an option to see the answer and solution.
Q196
Open questionThe compensating jet in a carburettor supplies almost constant amount of petrol at all speeds because the
Select an option to see the answer and solution.
Q197
Open questionThe correct sequence of the decreasing order of brake thermal efficiency of the three given basic types of engines is
Select an option to see the answer and solution.
Q198
Open questionThe process of breaking up or a liquid into fine droplets by spraying is called
Select an option to see the answer and solution.
Q199
Open questionThe air standard efficiency of an Otto cycle compared to diesel cycle for the given compression ratio is
Select an option to see the answer and solution.
Q200
Open questionThe correct mixture strength (by weight) for petrol is about
Select an option to see the answer and solution.