Engine Failure Diagnosis

Вопросы к зачету 

1. Write out the instructions. Put the instructions in the correct order.

How to…

clean a spark plug

change a wheel

check the oil level

 

 

Put the oil filler cap on.

Clean the spark plug.

Take out the dipstick.

Clean the oil off the dipstick.

Take off the spark plug cover.

Lift up the car.

Take out the dipstick again.

Loosen the spark plug.

Check the oil level.

Lower the car.

Loosen the wheel nuts.

Place a jack under the car.

Tighten the wheel nut.

Take off the oil filler cap.

Put back the dipstick.

Switch off the engine.

Replace the spark plug in the socket.

Add some oil (if necessary).

Tighten the oil filler cap.

Put the new wheel on.

Remove the spark plug from the socket.

Take away the jack.

Put on the wheel nuts.

Tighten the spark plug.

Replace the spark plug cover.

Take off the wheel nuts.

Take off the old wheel.

 

2. Label the objects.

3. Label the tools with the words from the box

4. Fill in the blanks with the correct words and phrases.

1. Three _______two is six.

2. Four plus seven ________ eleven.

3. Fifty _________twenty equals thirty.

4. One thousand plus four hundred is fourteen _________.

5. To get ten, ________ three and seven.

6. Fifteen _______ two is seventeen.

 

5. Label the parts of the car.

headlight fender    high clearance     door     bumper      taillight

 

6. Complete the instructions with given words and match them with the signs.

always    do    do not      must    mustn’t      never

 

1. _________not smoke in this factory.

2. You _______touch this machine with bare hands. It’s hot.

3. ________wash your hands after using the chemicals

4. ________enter this small space.

5. You _______wear safety boots when you lift this.

6. ________use a lighted match in the workshop.

 

 

7. Label the steering system.

spindle         steering shaft        power steering pump      tie rod

tie rod end        pinion            rack             steering wheel

8. Choose the best answer.

1. A system that powers a car from the back wheels

a) clutch pedal

b) automatic transmission

c) rear-wheel drive

d) drive train.

2. A device that contracts and expands to absorb shock.

a) coil spring

b) stabilizer bar

c) torsion bar

d) ball joint

3. A lever drivers press to slow a car

a) disc brake

b) drum brake

c) brake pedal

d) parking brake

4. The process of releasing a spent fuel

a) ignite

b) exhaust valve

c) exhaust stroke

d) compression stroke

5. A part that mixes fuel and air

a) fuel line

b) carburetor

c) fuel filter

d) fuel tank

6. A chemical used to clean things

a) viscosity

b) detergent

c) oil

d) sludge

7. A device used as protection from heat

a) exhaust system

b) pollution

c) PCV valve

d) heat shield

8. A type of coolant used to prevent water from freezing

a) fan

b) antifreeze

c) cooling system

d) heater hose

9. Make dialogues between the supervisor and trainee from the checklist.

a) put new tires on           done

tighten wheel nuts        in progress

adjust air pressure        not yet done.

b) replace burn wire         done

switch on power          in progress

check other wires        not yet done

c) strip off old paint        done

plaster holes in wall    in progress

buy new paint             not yet done

9. Read the instruction manual. Write the letters (A-J) next to the names of the controls.

 

10. Imagine that you are preparing a project with your friend. You have found some interesting material for the presentation and you want to read this text to your friend. You have 1.5 minutes to read the text silently, then be ready to read it aloud. You will not have more than 1.5 minutes to read it.

                                         Internal Combustion Engine

An internal combustion engine operates in a cycle that compresses and ignites fuel and air to generate energy. The starting point is the cylinder. The cylinder runs through the head and down into the engine block. A piston within the cylinder moves up and down. At the start of the cycle, it pulls a mixture of fuel and air through valves and into the cylinder. It then moves upward compressing the fuel mixture. A piston ring forms a tight seal between the piston and the cylinder wall. This ensures that the fuel mixture cannot escape. It also keeps oil from the sump from entering the combustion chamber. Next, a spark plug fires and ignites the fuel mixture. The resulting explosion pushes the piston downward. This in turn moves a connecting rod attached to the piston. The connecting rod transfers the mechanical energy from the piston to a crankshaft contained within a crankcase.

 

 

11. Mark the following statements as true (T) or false (F).

 

1.  Air enters the cylinder through the valves.

2. Fuel is compressed by the piston.

3. The crankshaft connects to the sparkplug.

 

 

12. Listen to a conversation between an experienced mechanic and a new mechanic working on an engine. Check (V) the causes of the engine failure.

1. bad spark plugs

2. oil leak

3. cracked sump

4. worn piston rings

5. broken piston

 

13. Listen again and complete the conversation.

Mechanic 1: I'm still 1 _______________what caused the engine to fail.

Mechanic 2: I'm pretty certain that it was an 2 ________________________________

Mechanic 1: Really? I was thinking 3 ________________________________

Mechanic 2: It couldn't be that. The spark plugs are old, but they aren't 4 ____________________________

Mechanic 1: So the sump is cracked?

Mechanic 2: The sump 5 ___________________________________

Mechanic 1: It isn't? But then 6 ____________________an oil leak?

Mechanic 2: Look inside the cylinder and tell me what you see.

Mechanic 1: The walls are discolored and damaged. It looks really dirty too.

Mechanic 2: Exactly. Do you have any idea what caused that?

Mechanic 1: My guess is that oil got in there. Ah, so it was the piston rings.

Mechanic 2: Exactly. They wore out and oil leaked into the chamber.

 

14. Use the conversation from Task 11 to fill out the engine problem diagnosis form.

 

Max's Garage

Engine Failure Diagnosis

Parts checked: _____________________________________________________

Cause determined: Y I N