Question

use the last half of chapter 14 (pg. 129 - 138) to help you answer the questions. you may use your notes or your table partners to help you.
part i: service schedules - indicate with a n if the vehicle should be serviced under the normal service interval or an s if the vehicle should be serviced under the severe service interval.

1. vehicle used as a police car
2. vehicle used for long road trips
3. vehicle used for trips under 10 miles
4. vehicle driven in extreme cold conditions
5. vehicle used for towing

part ii: true or false - indicate with a t if the statement is true or an f if the statement is false.

1. synthetic oil can be mixed with conventional oil
2. warranties are not necessarily voided if aftermarket parts are used
3. wheel studs should not be oiled when reinstalling lug nuts
4. tire pressure can increase by 4 to 6 psi if the vehicle has been driven several miles
5. honda/acura transmissions are usually checked with the engine off.

part iii: multiple choice/short answer

1. two technicians are discussing chassis lubrication. technician a states that grease labeled “gc” can be used for chassis lubrication. technician b states that if a grease is labeled “gc” and “lb” it may be used for chassis lubrication. who is correct?

a. technician a only
b. technician b only
c. both technicians
d. neither technician

1. depending on the manufacturer, manual transmissions may use a variety of fluids as lubricants except

a. gear oil (sae 80w - 90)
b. automatic transmission fluid (atf)
c. engine oil (usually sae 5w - 30)
d. dot 5

1. where can you find accurate information on tire inflation specifications for a given vehicle?

a. the tire sidewall
b. from the shop foreman
c. the door jamb tire sticker
d. the veci label under the hood

1. diesel exhaust fluid (def) is used to reduce ________ emissions.

Explanation:

Step1: Analyze Part I

Police cars, long - road trips, short trips under 10 miles, and extreme cold conditions are all severe - use scenarios. So all should be marked with 'S'.

1. S
2. S
3. S
4. S

Step2: Analyze Part II

1. Synthetic oil can be mixed with conventional oil in some cases, but it's not ideal, but for the sake of this question, it's false. So F.
2. Warranties may not be voided if aftermarket parts are used under certain conditions, so T.
3. Wheel studs should not be oiled when reinstalling lug nuts as it can cause over - tightening, so T.
4. Tire pressure can increase after driving several miles due to heat, so T.
5. Honda/Acura transmissions are usually checked with the engine running in some cases, so F.
6. F
7. T
8. T
9. T
10. F

Step3: Analyze Part III

1. Grease labeled "GC" and "LB" can be used for chassis lubrication. So both technicians are correct. Answer is c.
2. Manual transmissions usually do not use engine oil as a lubricant. Answer is c.
3. The door jamb tire sticker has accurate tire inflation specifications. Answer is c.
4. Diesel exhaust fluid (DEF) is used to reduce NOx emissions. Answer is NOx.

Answer:

Part I:

1. S
2. S
3. S
4. S

Part II:

1. F
2. T
3. T
4. T
5. F

Part III:

1. c. Both technicians
2. c. Engine oil (usually SAE 5W - 30)
3. c. The door jamb tire sticker
4. NOx