AUTO 125 FINAL EXAM QUESTIONS
AND ANSWERS 2026 VERIFIED.
Technician A says that it is safe to clean your clothes off at the end of the day by blowing
compressed air on yourself. Technician B says that you should avoid spinning a bearing with
compressed air because it may injure or kill you. Who is correct? - ANS Technician B
Where can you easily find the engine size on a car? - ANS On the under-hood sticker
Which of the following statements about Vehicle Identification Numbers (VINs) is FALSE? -
ANS Several identical cars may have the same VIN as each other.
Which of the following is always found on an under-hood sticker? - ANS Model year
Technician A says that when jump-starting a car, you should make the last connection on the
body of the car. Technician B says that if you accidentally hook up the jumper cables backwards,
it usually won't cause any damage. Who is correct? - ANS Neither A nor B
It is okay to run a car inside a shop or garage if one or more of the doors is open. - ANS False
When jump-starting a car, where should the last jumper cable connection be made? - ANS On
the metal of the engine of the "dead" car
@2026/2027 ALLRIGHTS RESERVED.
,Which of the following is NOT considered a rule of dressing for safety when working on or
around a car? - ANS Make sure that all rings and watches fit well and are not loose.
Which of the following is NOT a potential hazard associated with working around your car's
battery? - ANS Electrical shock
Which of the following statements is correct? - ANS The left and right sides of a car are
determined when you are sitting in the driver's seat.
When starting a car, you should double-check that - ANS people and tools are clear of moving
parts.
Student A says that you should fill your tires to the pressure indicated on the sidewall of the tire.
Student B says that you should fill your tires to the pressure indicated on the tire placard near
the driver's door or in the glovebox. Who is correct? - ANS Student B
Two technicians are discussing how to avoid connecting the cables backwards when jump-
starting (either using jumper cables or a jumper pack). Technician A says that you can identify
the positive and negative terminals on the car's battery by looking for the polarity symbols
stamped into the top of the battery. Technician B says that you can identify the positive and
negative terminals by looking at the color of the car's battery cables. Who is correct? -
ANS Technician A
Which of the following statements is true? - ANS The only time it is safe to work under a car
that is lifted up is when it is supported by jack stands.
Which of the following lists the four strokes of an internal combustion engine in the correct
order? - ANS intake, compression, power, exhaust
@2026/2027 ALLRIGHTS RESERVED.
, A camshaft must turn exactly ___________ as the crankshaft. - ANS half as fast
What is the name of the engine component that converts the reciprocal motion of the pistons
into the rotary motion needed to turn the wheels? - ANS crankshaft
Which of the following statements is FALSE? - ANS Because changing a timing belt or a timing
chain is easy, anyone with a set of tools could probably do it successfully.
It usually makes more sense economically to wait until the timing belt breaks to replace it rather
than paying to have it changed earlier. - ANS False
The engine shown is which type? - ANS inline
Which of the following engine components pushes the valves open? - ANS camshaft
Why is the compression stroke important to proper engine operation? - ANS Both A and B are
correct
A certain engine was found to have bent valves and a broken piston. This was most likely caused
by: - ANS A broken timing belt
What is the best way for a car owner to find out what types of fluids to use and how often the
engine's oil, coolant, and timing components should be changed? - ANS Check the owner's
manual
What determines the size of an engine? - ANS The volume of the cylinders
@2026/2027 ALLRIGHTS RESERVED.
AND ANSWERS 2026 VERIFIED.
Technician A says that it is safe to clean your clothes off at the end of the day by blowing
compressed air on yourself. Technician B says that you should avoid spinning a bearing with
compressed air because it may injure or kill you. Who is correct? - ANS Technician B
Where can you easily find the engine size on a car? - ANS On the under-hood sticker
Which of the following statements about Vehicle Identification Numbers (VINs) is FALSE? -
ANS Several identical cars may have the same VIN as each other.
Which of the following is always found on an under-hood sticker? - ANS Model year
Technician A says that when jump-starting a car, you should make the last connection on the
body of the car. Technician B says that if you accidentally hook up the jumper cables backwards,
it usually won't cause any damage. Who is correct? - ANS Neither A nor B
It is okay to run a car inside a shop or garage if one or more of the doors is open. - ANS False
When jump-starting a car, where should the last jumper cable connection be made? - ANS On
the metal of the engine of the "dead" car
@2026/2027 ALLRIGHTS RESERVED.
,Which of the following is NOT considered a rule of dressing for safety when working on or
around a car? - ANS Make sure that all rings and watches fit well and are not loose.
Which of the following is NOT a potential hazard associated with working around your car's
battery? - ANS Electrical shock
Which of the following statements is correct? - ANS The left and right sides of a car are
determined when you are sitting in the driver's seat.
When starting a car, you should double-check that - ANS people and tools are clear of moving
parts.
Student A says that you should fill your tires to the pressure indicated on the sidewall of the tire.
Student B says that you should fill your tires to the pressure indicated on the tire placard near
the driver's door or in the glovebox. Who is correct? - ANS Student B
Two technicians are discussing how to avoid connecting the cables backwards when jump-
starting (either using jumper cables or a jumper pack). Technician A says that you can identify
the positive and negative terminals on the car's battery by looking for the polarity symbols
stamped into the top of the battery. Technician B says that you can identify the positive and
negative terminals by looking at the color of the car's battery cables. Who is correct? -
ANS Technician A
Which of the following statements is true? - ANS The only time it is safe to work under a car
that is lifted up is when it is supported by jack stands.
Which of the following lists the four strokes of an internal combustion engine in the correct
order? - ANS intake, compression, power, exhaust
@2026/2027 ALLRIGHTS RESERVED.
, A camshaft must turn exactly ___________ as the crankshaft. - ANS half as fast
What is the name of the engine component that converts the reciprocal motion of the pistons
into the rotary motion needed to turn the wheels? - ANS crankshaft
Which of the following statements is FALSE? - ANS Because changing a timing belt or a timing
chain is easy, anyone with a set of tools could probably do it successfully.
It usually makes more sense economically to wait until the timing belt breaks to replace it rather
than paying to have it changed earlier. - ANS False
The engine shown is which type? - ANS inline
Which of the following engine components pushes the valves open? - ANS camshaft
Why is the compression stroke important to proper engine operation? - ANS Both A and B are
correct
A certain engine was found to have bent valves and a broken piston. This was most likely caused
by: - ANS A broken timing belt
What is the best way for a car owner to find out what types of fluids to use and how often the
engine's oil, coolant, and timing components should be changed? - ANS Check the owner's
manual
What determines the size of an engine? - ANS The volume of the cylinders
@2026/2027 ALLRIGHTS RESERVED.
