1.

The term TDC refers to

1. the engine exhaust system

2. rolling resistance of tires

3. crankshaft position corresponding to a piston at the top of its stroke

4. the distance between headlights

2.

The distributor is

1. a rotary switch that connects the ignition coil to the various spark plugs

2. a system for smoothing tire load

3. a system that generates the spark in the cylinders

4. a section of the drivetrain

3.

The air fuel ratio is

1. the rate at which combustible products enter the engine

2. the ratio of the mass of air to the mass of fuel in a cylinder before ignition

3. the ratio of gasoline to air in the exhaust pipe

4. intake air and fuel velocity ratio

4.

Ignition normally occurs

1. at BDC

2. at TDC

3. just after TDC

4. just before TDC

5.

Most automobile engines are

1. large and heavy

2. gasoline-fueled, spark-ignited, liquid-cooled internal combustion type

3. unable to run at elevations that are below sea level

4. able to operate with any fuel other than gasoline

6.

An exhaust valve is

1. a hole in the cylinder head

2. a mechanism for releasing the combustion products from the cylinder

3. the pipe connecting the engine to the muffler

4. a small opening at the bottom of a piston

7.

Power is produced during

1. intake stroke

2. compression stroke

3. power stroke

4. exhaust stroke