The system of lubrication used for motor cycles and scooters is by________________?

Related Mcqs:

1. In a naturally aspirated diesel engine, the air is supplied by________________?

   A. a supercharger
   B. a centrifugal blower
   C. a vacuum chamber
   D. an injection tube
   E. forced chamber

2. Tensile strength of steel can be safely in-creased by________________?

   A. adding carbon up to 2.8%
   B. adding carbon up to 6.3%
   C. adding carbon up to 0.83%
   D. adding small quantities of copper
   E. adding copper and carbon

3. The compression ratio of motor cars is___________________?

   A. 5
   B. 7
   C. 10
   D. 13
   E. 16

4. Which is correct statement about reaction time for autoignition of fuel and the fuel air ratio__________________?

   A. lean mixture has high reaction time
   B. rich mixture has high reaction time
   C. chemically correct mixture has mini-mum reaction time
   D. all of the above
   E. non of the above

5. 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

6. The firing order in a six stroke I.C. engine is_________________?

   A. 1-3-6-5-2-4
   B. 1-4-2-5-6-3
   C. 1-6-2-5-4-3
   D. 1-5-2-6-3-4
   E. 1-5-3-4-2-6

7. 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

8. In petrol engines, advancing the spark timing will_______________?

   A. increase the knocking tendency
   B. decrease the knocking tendency
   C. not affect the knocking tendncy
   D. increase or decrease knocking tendency depending on strenght and time of spark
   E. unpredictable

9. In isochronous governing, speed droop is_______________?

   A. 100%
   B. 50%
   C. 5%
   C. 30%
   E. 1%.

10. 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