6:21
D:-25
Correct Answer:- Option-C

Question46:-If 'P' is the Ratio of inside to outside diameter of a shaft, the ratio of torque camrying capacity of solid shaft to
that of hollow shaft is given by
५ (124) (-1)
‏بيعم‎
‎)
‎0: 0/௫
Correct Answer:- Option-A
Question47:-Angle of helix in a closed coiled spring is
A:-<100
B:->100
C:-=100
D:-None
Correct Answer:- Option-A
Question48:-For the same maximum pressure and temperature of Otto, Diesel and dual combustion air standard cycles
A:-The compression ratio will be same
B:-Heat supplied to the cycles will be same
C:-Air standard efficiency will have same value
D:-Heat rejected by the engine will be same
Correct Answer:- Option-D
Question49:-The mass of carbon per kg of flue gas is given by
‏٤0 "(11(/)3)+ (3//760_)2“-ھ‎
8:-(7)/ദ) (2) +3/11 0
@- 31160 (2) * 773 0
0:- (11)/(3)60 (2) + 3/7 0
Correct Answer:- Option-D
Question50:-Critical thickness of insulation for sphere is given by
[k *->" thermal conductivity, h *->" heat transfer coefficient]
ಹಗ
8;-(10/(401):
ஙோ
0:- 20/0)
Correct Answer:- Option-D
Question51:-In a certain Heat exchanger, both fluids have identical mass flow rate -sp. heat product. The hotfluid enters at
76°C and leaves at 47°C and cold fluid enters at 2650 and leaves at 55°C. The effectiveness of heat exchanger is
A:-0.16
:-0.58
C:-0.72
D:-1.0
Correct Answer:- Option-B
Question52:-When ammonia is used as Refrigerant, the recommended material used for Refrigerant lines are
A:-Copper
B:-Aluminium
C:-Steel
D:-Brass
Correct Answer:- Option-C
Question53:-A Spark plug gap should be
:-0.2 to 0.8 mm
:-0.3 to 0.7 mm
:-0.4 ₹0 0.9 ಗಾಗಾ
D:-0.6 to 1.0 mm
Correct Answer:-Question Cancelled
Question54:-Which type of compressor mostly used in supercharger of intemal combustion engines 7
A:-Roots blower
B:-Axial flow compressor
C:-Redial flow compressor
D:-Reciprocating compressor
Correct Answer:- Option-C