61. The example of variable venturi carburettor is A. Carter carburettor B. Solex carburettor C. S. U. carburettor D. Zenith carburettor Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
62. The fuel injection timing in a distributor type pump is controlled by A. Changing the plunger stroke B. Changing speed of rotor C. Rotating the cam ring D. Changing the number of cams on the ring Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
63. If the pressure above the fuel in the float chamber is atmospheric pressure, the carburettor is said to be A. Balanced B. Unbalanced C. Both A and B D. None of these Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
64. The process of supplying the intake air to the engine cylinder at a density more than the density of the surrounding atmosphere is known as A. Scavenging B. Detonation C. Supercharging D. Polymerisation Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
65. What is the mechanical breaking-up of the liquid fuel into small particles? A. Vaporization B. Atomization C. Both A and B D. None of these Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
66. The intake manifold is mounted on the side of the cylinder block in . . . . . . . . engine. A. L-head B. S-head C. K-head D. N-head Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
67. Knocking tendency in an SI engine reduces with increasing A. Compression ratio B. Wall temperature C. Supercharging D. Engine speed Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
68. If the air filter is removed in petrol engine the air/fuel ratio will A. Increases B. Decreases C. Increase or decrease D. Remains unchanged Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
69. At present the average octane rating of regular grade gasoline is A. 5 - 9 B. 100 - 120 C. 93 - 94 D. 120 - 140 Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
70. The intake manifold is a . . . . . . . . tube for carrying the air fuel mixture from the carburettor to the engine intake port. A. Cast iron B. Aluminium C. Both A and B D. None of these Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
