- (A) increase the knocking tendency
- (B) decrease the knocking tendency
- (C) not affect the knocking tendncy
- (D) increase or decrease knocking tendency depending on strenght and time of spark
- (E) unpredictable
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- (A) ignition coil
- (B) ignition coil and distributor
- (C) ignition coil and condenser
- (D) ignition coil and contact breaker
- (E) ignition coil, contact breaker and con-denser
- (A) lean mixture
- (B) theoretically correct mixture
- (C) rich mixture
- (D) any type of mixture
- (E) lean/rich mixture depending upon capacity of engine
- (A) governor
- (B) crank shaft
- (C) gear box
- (D) flywheel
- (E) timing spark properly
- (A) same level
- (B) slightly higher level
- (C) slightly lower level
- (D) may be anywhere
- (E) varies from situation to situation
- (A) 0.85
- (B) 1
- (C) 1.1 to 1.3
- (D) 1.2 to 1.5
- (A) increase the knocking tendency
- (B) decrease the knocking tendecny
- (C) not affect the knocking tendency
- (D) increase or decrease knocking tendency depedning on strength and time of spark
- (E) unpredictable
- (A) lower than the coldest atmospheric temperature at which oil is to be pumped
- (B) higher than above
- (C) has no such relation
- (D) more than 100°C
- (E) none of the above
- (A) production of highly corrosive gases corroding the cylinder walls and exhaust system
- (B) excessive engine wear
- (C) damaging of both the storage tank and the engine
- (D) deposition on engine parts
- (E) none of the above.
- (A) rotating the crank
- (B) adjusting the spark plug gap
- (C) adjusting ignition coil position
- (D) rotating the distributor
- (E) delaying the spark by increasing capacitor in ignition circuit

