More Questions on This Topic :

Question 1. The pressure and temperature at the end of compression stroke in a petrol engine are of the order of
  1.    4-6 kg/cm² and 200-250°C
  2.    6-12 kg/cm² and 250-350°C
  3.    12-20 kg/cm² and 350-450°C
  4.    20-30 kg/cm² and 450-500°C
Answer: Option B

Question 2. The brake power is the power available
  1.    In the engine cylinder
  2.    At the crank shaft
  3.    At the crank pin
  4.    None of these
Answer: Option B

Question 3. Which one of the following engines will have heavier flywheel than the remaining ones?
  1.    30 kW four-stroke petrol engine running at 1500 r.p.m.
  2.    30 kW two-stroke petrol engine running at 1500 r.p.m.
  3.    30 kW two-stroke diesel engine running at 750 r.p.m.
  4.    30 kW four-stroke diesel engine running at 750 r.p.m.
Answer: Option A

Question 4. The specific fuel consumption of a petrol engine compared to diesel engine of same H.P. is
  1.    Same
  2.    More
  3.    Less
  4.    Less or more depending on operating conditions
Answer: Option B

Question 5. A diesel engine has
  1.    1 valve
  2.    2 valves
  3.    3 valves
  4.    4 valves
Answer: Option C

Question 6. The pressure inside the cylinder is _________ the atmospheric pressure during the exhaust stroke.
  1.    Equal to
  2.    Below
  3.    Above
  4.    None of these
Answer: Option C