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Internal Combustion Engines

Internal Combustion Engines
A mixture containing 65% of iso-octane and 35% of normal heptane will have

Octane number 65
Octane number 35
Cetane number 35
Cetane number 65

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Internal Combustion Engines
The cetane (C₁₆H₃₄) which is a straight chain paraffin, is assigned a cetane number of

50
120
100
0

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Internal Combustion Engines
The basic requirement of a good combustion chamber is

Minimum turbulence
Low volumetric efficiency
High thermal efficiency and power output
Low compression ratio

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Internal Combustion Engines
A flow in which the quantity of liquid flowing per second is constant, is called __________ flow.

Unsteady
Streamline
Steady
Turbulent

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Internal Combustion Engines
Which is more viscous lube oil?

SEA 30
SAE 80
SAE 50
SAE 70

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Internal Combustion Engines
Compression loss in I.C engines occurs due to

Leaking piston rings
Clogged air inlet slots
All of these
Use of thick head gasket

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MORE MCQ ON Internal Combustion Engines

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