Cooling System MCQ : Here you will find MCQ Questions related to "Cooling System" in Farm Machinery. These Cooling System MCQ Questions Will help you to improve your Farm Machinery knowledge and will prepare you for various Examinations like Competitive Exams, Placements, Interviews and other Entrance Exmaniations.
A system, which controls the engine temperature, is known as a?
A. Cooling system.
B. I.C. Engine Components
C. Fuel Supply System
D. Power Transmission System
Explanation: A system, which controls the engine temperature, is known as a cooling system.
In order to prevent the water in the cooling system from freezing, some chemical solutions which are known as?
A. freeze solutions
B. water-freeze solutions
C. anti-freeze solutions
D. None of the above
Explanation: In order to prevent the water in the cooling system from freezing, some chemical solutions which are known as anti-freeze solutions are mixed with water.
Lower temperatures also lower the volumetric efficiency of the engine.
C. Can be true or false
D. Can not say
Explanation: Higher temperatures also lower the volumetric efficiency of the engine.
How many types of cooling systems?
Explanation: There are two types of cooling systems : Air cooling system and Water-cooling system.
Which of the following is an Advantages of Air Cooled Engines?
A. Its design of air-cooled engine is simple
B. It needs less care and maintenance.
C. It is cheaper to manufacture
D. All of the above
Explanation: All of the above is an Advantages of Air Cooled Engines.
Which of the following is not a part of water-cooling system?
A. water pump
C. pressure gauge
D. water jacket
Explanation: Pressure gauge is not a part of water-cooling system instead radiator and pressure cap is a part of water-cooling system.
Which of the following is not a method of water cooling?
A. Open jacket or hopper method
B. Open flame method
C. Thermosiphon method
D. Forced circulation method
Explanation: Open flame method is a method of ignition in which two gas jets, one burning continuously on the outside of the engine and the other jet coming in contact with first jet and the combustion takes place, are used for ignition.
What is the maximum permissible V-belt sag?
A. 15 mm
B. 20 mm
C. 10 mm
D. 18 mm
Explanation: The tension of the fan belt should be checked very frequently. If the belt is very tight, it will cause wear on the pulley of pump and dynamo. The maximum permissible V-belt sag when applying average finger pressure is 15mm. If it is more than this limit, the belt should be adjusted.
What output do the engines reject running at a speed of 2000 rpm and at full load condition using gasoline?
A. 0.75 KW
B. 0.89 KW
C. 0.23 KW
D. 0.44 KW
Explanation: The engines, at the speed of 2000 rpm and at full load condition, using gasoline with 7.3:1 compression ratio reject approximately 0.75 KW for each kilowatt of output.
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?
A. 4.26 lps
B. 4.19 lps
C. 2.86 lps
D. 3.72 lps
Explanation: In tractors, the required flow rate of water is 0.16 l/s per kw to drop the radiator temperature from 5.5 to 8.5°C => Q = 40*0.58*0.16 l/s = 3.72 lps.