The patrol is distilled at a temperature from :

Related Mcqs:

1. 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

2. Kerosene is distilled at________________?

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

3. At very low temperature, the melting and boiling temperatures become equal. This temperature is____________________?

   A. 373°K
   B. 273.16°K
   C. 303°K
   D. 0°K.
   E. 300°K

4. In order to prevent formation of carbon on the injector, the temperature of nozzle tip should be__________________?

   A. less than 100°C
   B. between 100-250°C
   C. between 250 – 300°C
   D. between 400 – 500°C
   E. between 500 – 1000°C

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

   A. higher
   B. lower
   C. same
   D. depends on quality of fuel
   E. unpredictable

6. Auto-ignition temperature is____________________?

   A. minimum temperature to which oil is heated in order to give off inflammable vapours in sufficient quantity to ignite momentarily when brought in contact with a flame
   B. temperature at which it solidifies or congeals
   C. that at which it catches fire without external aid
   D. indicated by 90% distillation temperature, i.e., when 90% of sample oil has distilled off
   E. indicated by 50% distillation temperature

7. 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.

8. Freezing temperature of petrol is usually__________________?

   A. 0°C
   B. – 10°C
   C. 10°C
   D. less than – 30°C
   E. less than – 273°C

9. In petrol engine, increase of cooling water temperature will_________________?

   A. increase the knocking tendency
   B. decrease the knocking tendecny
   C. not affect the knocking tendency
   D. increase or decrease knocking tendency depedning on strength and time of spark
   E. unpredictable

10. The ability of a material to resist softening at high temperature is known as____________________?

    A. creep
    B. hot tempering
    C. hot hardness
    D. fatigue
    E. superhardening