Compression ratio of I.C. Engines is

A The ratio of volumes of air in cylinder before compression stroke and after compression stroke
B Volume displaced by piston per stroke and clearance volume in cylinder
C Ratio of pressure after compression and before compression
D Swept volume/cylinder volume

Correct Answer: The ratio of volumes of air in cylinder before compression stroke and after compression stroke

Compression ratio of I.C. Engines is The ratio of volumes of air in cylinder before compression stroke and after compression stroke
Bissoy MCQ
#Mechanical Engineering #Internal Combustion Engines (I.C. Engines)

Related Questions

Highest useful compression ratio (HUCR) is the highest compression ratio at which the
A Engine can run
B Engine gives maximum output
C Engine is most efficient
D Fuel can be used in a test engine without knocking
The compression ratio for Diesel engines is
A 15 to 20
B 5 to 8
C 3 to 6
D 20 to 30
If clearance volume of I.C. engines is increased, the compression ratio will
A Increase
B Decrease
C Remain constant
D Be doubled
The compression ratio for petrol engines is
A 3 to 6
B 5 to 8
C 10 to 20
D 15 to 30
The compression ratio for Diesel engines usually lies in the range of
A 6 - 10
B 10 - 15
C 15 - 25
D 25 - 40
Ratio of permissible stress in direct compression and bending compression is
A Less than 1
B Between 1 and 1.5
C Between 1.5 and 2.0
D Greater than 2
In practice, the compression ratio of compression-ignition (CI) engine ranges from
A 15 to 25
B 5 to 10
C 40 to 55
D 60 to 70
The Diesel engines as compared to petrol engines require
A Bigger flywheel
B Smaller flywheel
C Same size of flywheel
D No flywheel
The compression ignition engines are governed by
A Hit and miss governing
B Qualitative governing
C Quantitative governing
D Combination of (B) and (C)
The pressure at the end of compression, in diesel engines, is approximately
A 10 bar
B 20 bar
C 25 bar
D 35 bar

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