The self-ignition temperature of diesel oil compared to petrol is_________________?

Related Mcqs:

1. Self-ignition temperature of petrol is of the order of___________________?

   A. 150°C
   B. 240°C
   C. 370°C
   D. 450°C
   E. more than 500°C.

2. Ignition quality of diesel-fuel oil is expressed by an index called__________________?

   A. octane number
   B. cetane number
   C. calorific value
   D. carbon content
   E. ignition temperature

3. Diesel fuel, compared to petrol is_________________?

   A. less difficult to ignite
   B. just about the same difficult to ignite
   C. more difficult to ignite
   D. highly ignitable
   E. none of the above

4. If diesel is fed by mistake in the oil tank of a petrol engien, then engine will________________?

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

5. High carbon content in diesel oil used for diesel engine leads to_________________?

   A. production of highly corrosive gases corroding the cylinder walls and exhaust system
   B. excessive engine wear
   C. damaging of both the storage tank and the engine
   D. deposition on engine parts
   E. none of the above.

6. The thermal efficiency of a petrol engine of two stroke with crank case scavenging as compared to four stroke petrol engine with same comperssion ratio will be_____________________?

   A. higher
   B. lower
   C. same
   D. depends on size of engine
   E. unpredictable.

7. Diesel engines have low specific fuel consumption compared to petrol engine. This statement is____________________?

   A. not true
   B. true at full load
   C. true at part load
   D. true at both part and full load
   E. there could not be any such criterion

8. Diesel engines as compared to petrol engines require ______________________?

   A. bigger flywheel
   B. smaller flywheel
   C. same size flywheel
   D. no flywheel
   E. flywheel whose size may be less or more depending on several other fac-tors

9. A diesel engine as compared to petrol engine (both running ar rated load) is ____________________?

   A. more efficient
   B. less efficient
   C. equally efficient
   D. unperdictable
   E. other factors will decide it

10. The specific fuel consumption of a petrol engine compared to diesel engine of same H.P. is_______________?

    A. same
    B. more
    C. less
    D. less or more depending on operating conditions
    E. unpredictable