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This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Farm Machinery knowledge and support exam preparation. Choose a topic below to get started.
1. |
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? |
A. | 8.5 C to 5.5 C |
B. | 11 C to 10 C |
C. | 20 C to 15 C |
D. | 12.75 C to 9.79 C |
Answer» B. 11 C to 10 C | |
2. |
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? |
A. | 5.68 * 10<sup>-4</sup> poise |
B. | 5.98 * 10<sup>-4</sup> poise |
C. | 5.68 * 10<sup>-5</sup> poise |
D. | 5.98 * 10<sup>-5</sup> poise |
Answer» C. 5.68 * 10<sup>-5</sup> poise | |
3. |
What is the maximum permissible V-belt sag? |
A. | 15 mm |
B. | 20 mm |
C. | 10 mm |
D. | 18 mm |
Answer» B. 20 mm | |
4. |
What amount of washing soda and kerosene oil should be added in water to make a solution to clean the cooling system? |
A. | 2 kg water and 0.5 kg kerosene oil |
B. | 2.5 kg water and 1.5 kg kerosene oil |
C. | 1 kg water and 0.5 kg kerosene oil |
D. | 1.5 kg water and 2.5 kg kerosene oil |
Answer» D. 1.5 kg water and 2.5 kg kerosene oil | |
5. |
What is the formula for Newton s law of cooling? |
A. | ( frac{d }{dt} ) = KA ( - <sub>0</sub>) |
B. | ( frac{d }{dt} ) = KA ( + <sub>0</sub>) |
C. | ( frac{d }{dt} ) = KA ( * <sub>0</sub>) |
D. | ( frac{d }{dt} ) = KA ( / <sub>0</sub>) |
Answer» B. ( frac{d }{dt} ) = KA ( + <sub>0</sub>) | |
6. |
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 |
Answer» C. Thermosiphon method | |
7. |
What are the different temperatures at which thermostats fully opens for petrol and diesel engine respectively? |
A. | 106 C;120 C |
B. | 89 C;98 C |
C. | 82 C;90 C |
D. | 100 C;102 C |
Answer» D. 100 C;102 C | |
8. |
What is the range of best operating rating temperature of I.C. engine? |
A. | 106 F 120 F |
B. | 140 F 200 F |
C. | 106 F 200 F |
D. | 120 F 140 F |
Answer» C. 106 F 200 F | |