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Internal Combustion Engines

Internal Combustion Engines
Iso-octane (C₈H₁₈) has octane number of

50
0
100
120

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Internal Combustion Engines
The mean effective pressure obtained from engine indicator indicates the

Average pressure
Minimum pressure
Maximum pressure developed
Instantaneous pressure at any instant

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Internal Combustion Engines
For the same power developed in I.C. engines, the cheaper system is

Supercharged
Centrifugal pump
Turbo charger
Naturally aspirated

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Internal Combustion Engines
In a four stroke cycle petrol engine, the charge is ignited at

30° before top dead center
30° after bottom dead center
30° after top dead center
30° before bottom dead center

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Internal Combustion Engines
The ignition quality of petrol is expressed by

Calorific value
Octane number
All of these
Cetane number

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Internal Combustion Engines
The probability of knocking in diesel engines is increased by

All of these
Low volatility
Higher viscosity
High self ignition temperature

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MORE MCQ ON Internal Combustion Engines

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