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.Management Sciences
Category: Mechanical Engineering Mcqs
Scheduling gives information about____________________?
A. when work should start and how much work should be completed during a certain period
B. when work should complete
C. that how idle time can be minimized
D. proper utilisation of machines
E. none of the above
Hardness of lower bainite (tempered martensite) is about________________?
A. RC 65
B. RC 48
C. RC 57
D. RC 80
E. RC 32
Carburretion is done to________________?
A. feed petrol into cylinder
B. govern the engine
C. break up and mix the petrol with air
D. heat up the charge to cylinder
E. scavenge the cylinder
The machinability of steel is increased by___________________?
A. silicon and sulphur
B. phosphorous, lead and sulphur
C. sulphur, graphite and aluminium
D. phosphorous and aluminium
E. none of the above
In vapour compression cycle using NH3 as refrigerant, initial charge is filled at_________________?
A. suction of compressor
B. delivery of compressor
C. high pressure side close to receiver
D. low pressure side near receiver
E. anywhere in the cycle
Orsat meter is used for__________________?
A. gravimetric analysis of the flue gases
B. volumetric analysis of the flue gases
C. mass flow of the flue gases
D. measuring smoke density of flue gases
E. none of the above
The inlet value of a four stroke cycle I.C engine remains open for nearly___________________?
A. 180°
B. 125°
C. 235°
D. 200°
E. 275°
Free air is the air at________________?
A. atmospheric conditions at any specific location
B. 20°C and 1 kg/cm2 and relative humidity of 36%
C. 0°C and standard atmospheric conditions
D. 15°C and 1 kg/cm2
E. 25°C, 1 kg/cm2 and relative humidity of 50%.
A pressurised water reactor employs pressuriser for the following application________________?
A. to maintain constant pressure in primary circuit under varying load
B. to Supply high pressure steam
C. to increase pressure of water in primary circut
D. to provide subcooled water at high pressure
E. all of the above
One kilowatt-hour energy is equivalent to ________________?
A. 1000 J
B. 360 kJ
C. 3600 kJ
D. 3600 kW/sec
E. 1000 kJ
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