241. Two advantages of using helical gears rather than spur gears in a transmission system are strength and cost strength and less end thrust noise level and strength noise level and econom ✅ The correct answer is option C.
242. The number of exhaust manifolds in a V-6 engine are one two four eight ✅ The correct answer is option B.
243. The correct flow of power through the drive train is engine – driveshafts – clutch – mainshaft – countershaft – final driven gear – wheels engine – clutch – mainshaft – countershaft – final driven gear – driveshafts – wheels engine – clutch – countershaft – mainshaft – final driven gear – driveshafts – wheels engine – mainshaft – c ✅ The correct answer is option B.
244. When turning a corner, the front wheels are toeing out the front wheels are turning on different angles the inside front wheels has a greater angle than the outside wheel all of the above ✅ The correct answer is option D.
245. The calorific value of petrol is about 36.5 – 38.5 MJ/kg 39.4 – 42.5 MJ/kg 42.7 – 43.5 MJ/kg 45.5 – 47 MJ/kg ✅ The correct answer is option C.
246. The engine oil is stored in __________ when the engine is not running. oil pan cylinder head oil pump separate oil tank ✅ The correct answer is option A.
247. The problems caused by the wheel imbalance are hard steering and hard ride poor acceleration and hard steering steering wheel vibrations and uneven tyre wear poor acceleration and ✅ The correct answer is option C.
248. The component in the radiator of an automobile that increases the boiling point of water is drain plug water jacket vacuum valve pressure cap ✅ The correct answer is option D.
249. When the brake pedal free play is less than the specified value, then the brake drags brake fades vapour locking occurs in the brake lines antilock braking syste ✅ The correct answer is option A.
250. The condition that results in large quantities of HC emission is high temperature combustion incomplete combustion low temperature combustion high atmospheric tempe ✅ The correct answer is option B.