Introduction to Technology

Chapter 21: Transportation Power

Self Check Quiz

1
In a diesel engine,
A)the internal parts are like the parts inside a gasoline engine.
B)there are operating differences between the diesel and gasoline engines.
C)the four strokes are the same as those in a gasoline engine.
D)all of the above.
2
Four-stroke engines
A)are less powerful than two-stroke.
B)are more efficient than two--stroke.
C)emit more pollutants than two-stroke.
D)are mostly used in string trimmers.
3
What is the most popular type of engine?
A)four-stroke engine
B)two-stroke engine
C)jet engine
D)turbine engine
4
A(n) __________ converts any form of energy into motion.
A)emission
B)motor
C)EPA
D)cycle
5
What usually provides power to trains that are not powered by a gasoline or diesel engine?
A)wind farms
B)electricity drawn from an overhead cable
C)nuclear power packs
D)electricity stored in numerous batteries
6
What is the main problem with battery-powered cars?
A)They cause heavy pollution.
B)They give a jerky ride.
C)They cannot travel far without recharging.
D)The battery takes up too much room.
7
All of the following statements about solid-propellant rockets are true, except
A)they can be re-used.
B)solid fuel can be stored for long periods.
C)the engine is simple and easy to make.
D)the engine can be made in small sizes.
8
Diesel engines
A)have shorter life spans than gasoline engines
B)uses more fuel than gasoline engines
C)are harder to start than gasoline engines.
D)provide more power than gasoline engines
9
A four-stroke cycle in an engine means that
A)pistons move down or up four times before repeating the cycle.
B)the engine operates on the same cycle as a bicycle.
C)the engine has exactly four cylinders.
D)the engine is assisted by an electric motor.
10
Most automobiles have a(n) __________ as a power source.
A)external combustion engine
B)battery-powered motor
C)internal combustion engine
D)solar-powered motor
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