The fuel air ratio in a petrol engine fitted with suction carburettor, operating with dirty air filter as compared to clean filter will be________________?

A. exhaust will be smoky
B. piston rings would stick into piston grooves
C. exhaust temperature will be high
D. engine starts overheating
E. scavenging occurs

A. diesel engines
B. gas turbines
C. petrol engines
D. aircraft engines
E. marine engines

A. high compression ratio
B. low compression ratio
C. low volumetric efficiency
D. minimum turbulence
E. high power output and high thermal efficiency

A. increase
B. decrease
C. remain same
D. increase upto certain limit and then decrease
E. decrease upto certain limit and then in-crease

A. give lot of smoke
B. detonate
C. knock
D. not run
E. run for some time and then stop

A. less than 100°C
B. between 100-250°C
C. between 250 – 300°C
D. between 400 – 500°C
E. between 500 – 1000°C