Related Mcqs:

1. The average calorific value of wood is about : __________?

   A. 33500 kj/kg
   B. 25000 kj/kg
   C. 23000 kj/kg
   D. 19700 kj/kg

   Submitted by: Faheem Zaman Dhaunroo

2. The natural solid fuels are : ________?

   A. Wood
   B. Peat
   C. Lignite
   D. All of above

   Submitted by: Faheem Zaman Dhaunroo

3. The specific fuel consumption for a petrol engine first decreases with increase in fuel air ratio and then increases with further increase in fuel air ratio. The minimum value occurs in the range of__________________?

   A. lean mixture
   B. chemically correct mixture
   C. rich mixture
   D. unpredictable
   E. none of the above

4. In case of gas turbines, the gaseous fuel consumption guarantees are based on________________?

   A. high heat value
   B. low heat value
   C. net calorific value
   D. middle heat value
   E. calorific value

5. Gaseous-fuel guarantees are based on___________________?

   A. calorific value of oil
   B. low heat value of oil
   C. high heat value of oil
   D. mean heat value of oil
   E. all of the above

6. Ignition quailty of petrol is expressed by___________________?

   A. octane number
   B. cetane number
   C. calorific value
   D. self ignition temperature
   E. distillation temperature

7. 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

8. The delay period in petrol engine is of the order of__________________?

   A. 0.001 sec
   B. 0.002 see
   C. 0.01 sec
   D. 0.05 sec
   E. 0.1 sec

9. Petrol is distilled at a temperature in range of__________________?

   A. 30 – 65°C
   B. 65 – 220°C
   C. 220-350°C
   D. 350-450°C
   E. 450-550°C

10. Deposition of carbon in petrol engine cylinder would result in increase of__________________?

    A. clearance volume
    B. swept volume
    C. compression ratio
    D. volumetric efficiency
    E. mean effective pressure