Test Yourself:
Choose the best answer.

1. What kind of heat engine is in a jeepney? (external, internal)

2. What kind of heat engine operates in a power plant? (external, internal)

3. Identify the movement of the piston on the following stroke,
a. Power (downward, upward)
b. Exhaust- (downward,upward)
c. Intake- (downward, upward)
d. Compression - (downward, upward)

4. On what stroke,
a. does a fuel-air mixture fills in the cylinder? (exhaust, intake)
b. burned gases are pushed out from the cylinder? (exhaust, intake)
c. fuel-air mixture is ignited by the spark plug? (compression, power)
d. compression of fuel-air mixture took place? (compression, power)