HAL Diploma Trainee Mechanical Question Paper Sample Model Paper 2019.
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HAL Diploma Trainee Mechanical Question Paper Sample Model Paper 2019
1. The chronological order of strokes in a four stroke petrol engine is:
1] Suction stroke, working stroke, compression stroke and exhaust stroke.
2] Suction stroke, compression stroke, working stroke and exhaust stroke.
3] Compression stroke, working stroke, suction stroke and exhaust stroke.
4] Compression stroke, suction stroke, working stroke and exhaust stroke.
2. The enthalpy of steam is defined as:
1] Difference of internal energy and product of pressure and volume.
2] Product of internal energy and pressure.
3] Sum of internal energy and product of pressure and volume.
4] Amount of heat change divided by the absolute temperature.
3. Which of the following operations can be performed using a drilling machine?
A. Reaming B. Countersinking C. Spot Facing D.
1] Only A, B and D 2] Only B, C and D 3] Only A, B and C 4] All of
4. Which of the following are the advantages of impulse turbine over reaction turbines?
A. Occupies less space per unit power.
B. Compounding is not necessary for speed reduction as the rotor speeds are usually low.
C. Suitable for high power generation.
1] B and C only 2] A only 3] C only 4] A and C only