Question 51 : A gas undergoes step 2 in Carnot cycle. Which of these processes describes the 2nd step
1. Isentropic expansion
2. Isentropic compression
3. Isothermal expansion
4. Isothermal compression
View Answer   Discuss with Members

Question 52 : Engines used in Ashok Leyland Comet trucks are
1. Single cylinder engines
2. Two cylinder engines
3. Four cylinder engines
4. Six cylinder engines
View Answer   Discuss with Members

Question 53 : What is the disadvantage of using diesel engine in comparison to petrol engine
1. Higher weight-to-power ratio
2. Higher maintenance cost
3. Greater starting difficulties
4. All of the mentioned
View Answer   Discuss with Members

Question 54 : In four cylinder engines the ignition advance depends on
1. Quality of fuel
2. Engine speed
3. Cylinder dimensions
4. Quality of fuel and engine speed
View Answer   Discuss with Members

Question 55 : Piston rings are not completely closed because
1. Closed rings are hard to manufacture
2. Gap allows the ring to expand and fit over
3. They are designed to let pass some lubricant to the combustion chamber
4. None of the mentioned
View Answer   Discuss with Members

Question 56 : Piston pin is also known as
1. Gudgeon pin
2. Crank pin
3. Screw pin
4. None of the mentioned
View Answer   Discuss with Members

Question 57 : The purpose of a piston pin is that
1. It prevents the valve from rotating
2. It links the connecting rod to the crankshaft
3. It ensure the piston ring to the piston
4. It connect the piston to the connecting rod
View Answer   Discuss with Members

Question 58 : Heat rejection in diesel cycle is at
1. Constant pressure
2. Constant volume
3. Constant temperature
4. None of the mentioned
View Answer   Discuss with Members

Question 59 : The crankshaft rotates the camshaft using
1. Belt drive
2. Chain drive
3. Gear drive
4. Motor drive
View Answer   Discuss with Members

Question 60 : Passenger car engines contain
1. 2 compression ring and 1 oil control ring
2. 2 compression ring and 2 oil control ring
3. 1 compression ring and 1 oil control ring
4. 2 compression ring and no oil control ring
View Answer   Discuss with Members