61. The primary condition that results in the emission of HC in large quantities is
62. In Diesel engines, the control of black smoke in the exhaust can be achieved by:
1. Running the engine at lower load.
2. Maintaining the injection system perfect.
3. Using Diesel fuel of higher Cetane number.
Which of the above statements are correct?
1. Running the engine at lower load.
2. Maintaining the injection system perfect.
3. Using Diesel fuel of higher Cetane number.
Which of the above statements are correct?
63. The hot air in a carbureted engine's intake air control system receive its heat from the
64. In the Orsat apparatus, KOH solution is used to absorb
65. Which is less harmful emission element after convert by catalytic converter?
66. Which one of the toxic component is reduced by an EGR system?
67. Upper level ozone is harmful to lungs and other biological tissue.
68. Which is the hydrocarbon emission released directly from engine to the atmosphere
69. . . . . . . . . in EGR results in some cycle partial burns and, in the extreme, total misfires.
70. The function of a resonator is that it
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