QuestionS5:-During sensible cooling process
‘Ac Dry bulb temperature decreases
B:-Enthalpy decreases
Cue point temperature remains constant
D-All the above
Correct Answer:- Option-D
QuestionS6:-Let, the Crankshaft of 4 Stroke IC Engine be rotating at 3000 RPM, then the time duration (in ms) of one intake stroke is
‏20ھ‎ ms
2:20
0:30 ms
0:40 ms
Correct Answer:- Option ®
QuestionS7:-Piston is a cylindrical shaped mass placed into the cylinder forming १5 ____ the combustion system
‘Ac Moving Boundary
B:-Rotating Boundary
C:Fixed Boundary
D:Tuming Boundary
Correct Answer:- Option-é
QuestionS8:-Let, the Crankshaft of 4 Stroke IC Engine is rotating at 3000 RPM, then the speed of camshafts,
‘86000 RPM
B:-3000 RPM
೦2500 8೫೫1
D750 RPM
Correct Answer:- Option-C
QuestionS9:-At higher altitudes the quantity of fuel supplied by the carburetor should ‏عن‎ to maintain correct the fuel air ratio,
Acincreased
Bi-decreased
കമ constant
D-none of the above
Correct Answer:- Option ®
Question60::Which one ofthe following does not significantly affect the process of carburetion ?
‘Ac Engine Speed
B:-Number of Cylinders
C=Design of Carburetor
DeTFemperature of Intake Air
Correct Answer:- Option ®
Question61::Which of the following statements is/are correct about the objectives of the Nozzle ?
i. It should atomize the liquid fuel into fine droplets.
ict should uniformly distribute the fuel into combustion chamber,
ili should avoid impingement of fuel on the walls.
iv. It should provide dribbling of fuel.
AcOnly iv
B:-Only i and i
C-Only i ii and i
D-All of the above (ii, iii and iv)
Correct Answer:- Option-C
‘Question62:-The S.U. carburetor generally is type carburetor.
‘Acide Draught and Constant Vacuum
B:-Down Draught and Constant Choke
ಆ Draught and Constant Choke
D-None of the above

Correct Answer: Option: