B:-multistage turbine
C:-simple reaction turbine
D:-velocity compounded impulse turbine
Correct Answer:- Option-A
Question78:-The refrigerant R-744 is
A:-ammonia
B:-freon-12
C:-carbon dioxide
D:-sulphur dioxide
Correct Answer:- Option-C
Question79:-The most flexible criteria for analysing an economic investmet is
A:-rate of retum criteria
B:-salvage value
C:-present value method
D:-future value method
Correct Answer:- Option-B
Question80:-Which of the following represents a group incentive plan?
A:-Rowan plan
B:-Bedaux plan
C:-Halsey premium plan
D:-Scanlon plan
Correct Answer:- Option-D
Question81:-Indicated results are most accurate when the pointer in the analogue read out system lies
A:-around the mid-third of the scale
B:-in the first quarter of the scale
C:-in the second quarter of the scale
D:-around the full capacity of the scale
Correct Answer:- Option-A
Question82:-In a gas turbine cycle, the turbine output is 600 kj/kg, the compressor work is 400 kj/kg and the heat supplied is
1000 ki/kg. The thermal efficiency of the cycle is
A:-60%
B:-40%
C:-20%
D:-80%
Correct Answer:- Option-C
Question83:-Collapsible toothpaste tubes are manufactured by
A:-Cupping
B:-Extrusion
C:-Cold rolling
D:-Deep drawing
Correct Answer:- Option-B
QuestionB4:-A large clearance volume in a reciprocating compressor results in
A:-lower suction pressure
B:-increased volume flow rate
C:-reduced volume flow rate
D:-lower delivery pressure
Correct Answer:- Option-D
QuestionB5:-The speed variation of the engine caused by the fluctuations of engine tumning moment is controlled by
A:-Flywheel
B:-Throttle valve
வேணா
D:-D-slide valve
Correct Answer:- Option-A
Question86:-If the tearing efficiency of a riveted joint is 60%, then the ratio of pitch of diameter of rivet is
&:-0.20
B:-0.33
6:0
D:-0.50
Correct Answer:- Option-C