. Circle the letter that best matches with the underlined word(s)
1. Automobile is a self-propelled vehicle used primarily on public roads.
a. Vehicle uses man-power to work.
b. Vehicle uses horse-power to work.
c. Vehicle uses fuel/electrical-power to work.
d. All correct.
2. Automobile is a self-propelled vehicle used primarily on public roads.
a. Originally
b. In the first time.
c. All correct.
d. All incorrect.
3. From the growth of suburbs to the development of elaborate road and highway systems.
a. complicated
b. complex
c. sophisticated
d. all correct.
4. From the growth of suburbs to the development of elaborate road and highway systems.
a. A big city/town
b. A trade place
c. An industrial zone.
d. An outlying part of a city or town
5. The so-called horseless carriage has forever altered the modern landscape.
a. Ship.
b. Train.
c. Automobile.
d. All incorrect.
6. The manufacture, sale, and servicing of automobiles have become key elements of industrial
economies.
a. main
b. major
c. coupling

2. The typical automobile has four wheels and can carry up to six people is called __________
a. car / auto
b. motorcar / truck
c. motorcar / passenger car.
d. a&c.
3. Larger vehicles designed to carry more passengers are called __________
a. vans/minivans.
b. omnibuses/buses
c. doubledeck bus
d. all correct.
4. Minivans are van-style vehicles built on a __________ car frame
a. passenger
b. truck
c. bus
d. omnibus
5. Minivans can usually carry up to __________ passengers
a. 5
b. 6
c. 7
d. 8
6. SUVs is a __________
a. Same-utility vehicles
b. Sport-universal vehicles
c. Sport-utility vehicles
d. Sport-utility vendor.
7. SUVs are __________ than passenger cars.
a. more rugged
b. more difficult
c. weaker.
d. softer.

11. Suspension systems includes springs and shock absorbers and cushion. ( True False)
12. Wheels and tires are rotated by powered axles. ( True False)
13. Steering and braking systems provide control over direction and speed. ( True False)
14. Electrical system only starts and operates the engine. ( True False)
15. Bumpers, air bags, and seat belts are safety features of automobile. ( True False)
UNIT 2
I. Circle the letter that best matches with the underlined word(s)
1. The engine is the heart of a car although it is normally hidden under the bonnet.
a. body of car
b. the metal cover or shield over the motor.
c. spring
d. all correct.
2. The intake stroke draws air and fuel into the combustion chamber
a. induction stroke.
b. income stroke.
c. introduction stroke
d. all correct.
3. The piston descends in the cylinder bore to evacuate the combustion chamber.
a. place where fuel is ignited.
b. place where air/fuel mixture is compressed.
c. the volume of cylindrical bore.
d. a & b
4. In the two-stroke engine, the space in the crankcase works as a pre-compression chamber for each
successive fuel charge.
a. main compression chamber.
b. sub compression chamber.
c. dual compression chamber.
d. all correct.
5. The fuel and lubricating oil are premixed and introduced into the crankcase
a. connecting rod

11. Most automobile engines are:
a. large and heavy
b. gasoline-fueled, spark-ignited, liquid-cooled, internal combustion type
c. unable to run at elevations that are below sea level
d. able to operate with any fuel other than gasoline.
12. An exhaust valve is:
a. a hole in the cylinder head
b. a mechanism for releasing the combustion products from the cylinder
c. the pipe connecting the engine to the muffler
d. a small opening at the bottom of a piston.
13. Power is produced during:
a. intake stroke
b. compression stroke
c. combustion stroke
d. exhaust stroke.
14. The air–fuel ratio is:
a. the rate at which combustible products enter the engine
b. the ratio of the mass of air to the mass of fuel in a cylinder before ignition
c. the ratio of gasoline to air in the exhaust pipe
d. intake air and fuel velocity ratio.
15. An SI engine is:
a. a type of internal combustion engine
b. a Stirling engine
c. always fuel injected
d. none of the above.
II. Gap filling
1. The _____ is also referred to as the Otto cycle engine.
a. two-stroke engine.
b. four-stroke engine
c. rotary engine.

c. crankshaft
d. piston.
10. In two-stroke engine, the upward and downward motion of the piston simultaneously opens and
closes
these _____.
a. port-holes
b. cylinder head.
c. cylinder block.
d. all correct.
11. The intake stroke on the diesel engine draws only _____ into the cylinder.
a. air/fuel mixture
b. oil
c. air
d. water.
12. Since diesel engines do not use a _____ .
a. filter
b. spark plug.
c. injector.
d. high pressure pump.
13. There are two methods by which fuel is injected into a combustion chamber, they are _____.
a. blowing & intaking
b. compressing & exhausting
c. direct or indirect injection.
d. all correct.
14. Advantages of reciprocating engines:
a. high compression ratio and high heat efficiency.
b. low friction and high durability.
c. noise and vibration.
d. a&b
15. Disadvantages of reciprocating engines:

d. put
3. These problems are obviated when diaphragm-type springs are used.
a. anticipated
b. prevented
c. a&b correct
d. a&b incorrect
4. The transmission is a gear system that adjusts the ratio of engine speed to wheel speed.
a. rocker
b. piston rod
c. gearbox
d. pin
5. The transmission enables the engine to operate within its optimal performance range
a. Best possible
b. most important
c. best wishes
d. all correct.
6. The shaft and gears in this shaft are called the layshaft.
a. input shaft.
b. output shaft
c. driveshaft.
d. intermediate shaft in gearbox.
7. Dog teeth fit into holes on the sides of the gears to engage them.
a. teeth on the gear.
b. teeth on the dog.
c. teeth on the collar.
d. teeth on the mount.
Page 6 of 22
8. Manual transmissions in modern passenger cars use synchronizers to eliminate the need for double-
clutching.
a. A device allows the collar and the gear to make frictional contact.

2. Mechanical clutches fall into two main categories: _____
a. positive disengagement and progressive disengagement.
b. positive terminal and negative terminal.
c. positive engagement and progressive engagement.
d. Positive displacement and negative displacement.
3. A progressive engagement clutch is the _____
a. friction type
b. magnetic type
c. electronic type
d. hydraulic type
4. At high rotational speeds, problems can arise with multi-spring clutches is _____
a. inertial force
b. magnetic force
c. gravity
d. centrifugal force
5. These problems are _____when diaphragm-type springs are used
a. added
b. anticipated
c. a&b correct
d. obviated
6. _____ provides a gear ratio between the engine speed and vehicle speed.
Page 7 of 22
a. gearbox
b. clutch & u-joint
c. differential
d. all correct
7. Manual transmissions in modern passenger cars use _____ to eliminate the need for double-
clutching.
a. synchronizers
b. spline

9. Layshaft is a intermidiate shaft in gear box. ( True False)
10. Synchronizers add the need for double-clutching in cars. ( True False)
11. Transmissions and synchros are implemented in the same way by all auto manufacturer. (
True False)
12. The drive shaft is used to couple the transmission output shaft to the differential input shaft. (
True False)
13. Universal joints a rigid couplings. ( True False)
14. Differential allows each driven wheel to turn at a different speed. ( True False)
15. Differential is the torque decrease provided by the gear ratio. ( True False)
UNIT 4
I. CIRCLE THE LETTER
1. Another major automotive sub-system is the suspension system.
a. useful
b. important
Page 8 of 22
c. a&b correct
d. key
2. The primary purpose of the suspension system is to isolate the car body from the vertical motion of
the
wheels as they travel
e. separate
f. incorporate
g. conduct
h. b&c correct
3. The weight of the car is supported by springs.
a. a season of a year
b. a part of suspension system
c. an elastic device
d. b&c correct
4. Spring is, in essence, a heavy-duty torsion bar coiled around an axis.