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Farm Machinery Practice Test: Fuel Supply and Cooling System
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Avg score: 60% Most missed: “A diesel tractor develops 60 KW with a coolant temperature difference 5.5°C. Wha…”
Fuel Supply and Cooling System topics include: Fuel supply and cooling system, forced circulation cooling system principle, cooling systems types, advantages and disadvantages. A fuel supply system in a petrol engine transfers fuel from the tank to the engine for combustion. The system includes the following components: Fuel tank, Fuel pump, Carburetor, Fuel injectors, Fuel filters, Fuel lines.  The fuel supply system can be one of the following types: Gravity system Pressure system Pump system Fuel injection system  The fuel injection system provides the correct fuel and air mixture... Show more
Farm Machinery Practice Test: Fuel Supply and Cooling System
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25 Questions

1. What output do the engines reject running at a speed of 2000 rpm and at full load condition using gasoline?
2. An I.C. engine consumes high speed diesel oil at the rate of 0.5 kg/h. What is the power of the engine?
3. What are the different temperatures at which thermostats fully opens for petrol and diesel engine respectively?
4. Which component of the carburettor is used to produce low pressure in the throat of the carburettor?
5. What is the range of best operating rating temperature of I.C. engine?
6. What is the temperature dropping in the radiator of a tractor when the flow rate of water is 0.16 litre per second per KW?
7. What would be the quantity of water to be circulated through the radiator, if diesel tractor developed 40 KW with a coolant temperature difference of 5.5°C?
8. At what temperature does the thermostats fully open?
9. What is the formula for Newton’s law of cooling?
10. A capillary tube has a diameter of 3 mm and 100 mm length. A head of 10 cm of oil above the inlet of the capillary maintains a pressure difference across the capillary. The specific gravity of oil is 0.92. A volume of 300 cm3 of oil passes through the in 10s. What will be the viscosity of oil?
11. The measure of knock characteristics of a fuel is known as ______
12. What is the maximum permissible V-belt sag?
13. What amount of washing soda and kerosene oil should be added in water to make a solution to clean the cooling system?
14. What is the melting point of Platinum?
15. A body cools from 70°C to 40°C in 5 minutes at surrounding temperature of 10°C. How long will it take for the body to cool from 49°C to 25°C?
16. Which component of the carburettor is used to maintain a constant level of fuel in the carburettor?
17. What is the formula for A.P.I. degrees used in gravity tests for fuels?
18. A diesel tractor develops 60 KW with a coolant temperature difference 5.5°C. What will be the quantity of water to be circulated through the radiator?
19. Which of the following is not a method of water cooling?
20. Which component is used to supply air under pressure to the cylinders of the engine?
21. What is the temperature of water in a closed radiator under high pressure?
22. Which law states that the rate of heat radiated by a body is directly proportional to the excess of temperature, provided that the excess temperature is less as compared to the surrounding temperature?
23. A four-stroke diesel engine operating at 1200 rpm uses 0.1 kg of fuel in 5 minutes and develops a torque of 7.5 kg-m. What is the brake specific fuel consumption.
24. Who invented the automobile water radiator?
25. What is the temperature of burning gases in the engine?