This is Automobile Engineering MCQ page-32.
| Question 311:- Maximum allowable hydrocarbons in the car emission are approximately (a) 10 ppm (b) 100 ppm (c) 1000 ppm (d) 5000 ppm |
| Question 312:- CO in the exhaust of a car engine should not be more than (a) 0.5% (b) 2 % (c) 5% (d) 10% |
| Question 313:- The PCV valve is located between the (a) air cleaner and the carburettor (b) carburettor and the intake manifold (c) intake manifold and air cleaner (d) intake manifold and crankcase |
| Question 314:- In ease of engines backfiring, the PCV valve (a) opens maximum (b) closes (c) disintegrates (d) sticks in the centre position |
| Question 315:- The position of the PCV valve plunger at idle speed is (a) towards the valve outlet side (d) near the valve centre (c) towards the crankcase (b) towards the valve inlet side |
| Question 316:- The function of charcoal granules is to absorb (a) waler vapour (b) carbon monoxide (c) petrol vapour (d) liquid petrol |
| Question 317:- The liquid-vapour separator is located near the (a) fuel tank (b) carburettor (c) charcoal canister (d) purge valve |
| Question 318:- EGR system is employed for controlling emissions of (a) HC (b) CO (c) NO (d) HC and CO |
| Question 319:- The pump for the air injection system is of (a) gear type (b) eccentric type (c) vane type (d) reciprocating type |
| Question 320:- The main purpose of the diverter valve in the air injection system is to (a) close the check valve (b) prevent backfire in the exhaust system (c) prevent backfire in the inlet manifold (d) weaken the air-fuel mixture |