Which of the following is not an interns combustion engine___________________?

Related Mcqs:

1. Combustion in compression ignition engines is____________________?

   A. homogeneous
   B. heterogeneous
   C. both A. and B.
   D. laminar
   E. turbulent

2. The air requirement of a petrol engine during starting compared to theoretical airequired for complete combustion is___________________?

   A. more
   B. loss
   C. same
   D. may be more or less depending on engine capacity
   E. unpredictable

3. In the opposed piston diesel engine, the combustion chamber is located________________?

   A. above the piston (/;) below the piston
   C. between the pistons
   D. any when
   E. there is no such criterion

4. In open combustion chamber in diesel engines____________________?

   A. the shape and layout of the piston crown, the inlet port, and the valve produce the turbulent effect on fuel mixture
   B. fuel is injected into an auxiliary chamber that is separated from the cylinder by an orifice or throat
   C. only a part of air charge is contained in an auxiliary chamber in which the fuel starts to burn with insufficient air which due to explosion tendency mixes thoroughly into main cylinder charge
   D. fuel is injected at atmospheric pres¬sure
   E. there are no valves.

5. The basic requirement of a good combustion chamber is___________________?

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

6. Which of the following statements is correct ?

   A. All the irreversible engines have same efficiency
   B. All the reversible engines have same efficiency
   C. Both Rankine and Caront cycles have same efficiency between same temperature limits
   D. All reversible engines working between same temperature limits have same-efficiency
   E. Between same temperature limits, both petrol and diesel engines have same efficiency

7. Installation of supercharger on a four-cycle diesel engine can result in the following percentage increase in power_____________?

   A. upto 25%
   B. upto 35%
   C. upto 50%
   D. upto 75%
   E. upto 100%.

8. Cetane number is determined by comparing the performance of diesel oil with the following hydrocarbons___________________?

   A. cetane
   B. mixture of cetane and alphamethyl napthalene
   C. ethylene dibromide
   D. mixture of aldehydes and ketones
   E. mixture of cetane with tetra-ethyl lead

9. The following type of carburettor is preferred_______________?

   A. concentric type
   B. eccentric type
   C. horizontal type
   D. vertical type
   E. none of the above

10. Which of the following solid fuel has high carbon content?

    A. Coke
    B. Coal
    C. Peat
    D. None of these

    Submitted by: Faheem Zaman Dhaunroo