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Chapter 5. Trades & Technology - Automotive

1
What is the purpose of the check valve in a vacuum power brake system?
2
Technician A says that ABS brakes are designed to allow the front wheels to be steered during heavy braking. Technician B says that the ABS dash warning lamp is amber in color. Which technician is correct?
3
A defective inner drive axle joint produces a clicking noise when cornering at low speeds.
4
A "pop" is heard from the radio speaker(s) when the system is operating with the air conditioning on. What is the most likely cause?
5
Which of the following can result from evaporator freeze-up?
6
(20 - 4 ) ÷ (8 ÷ 4 ) =
7
O-rings are a type of ________ seal.
8
An analog voltage signal is infinitely variable.
9
In a Toyota Prius regenerative braking system, how many pressure SENSORS are used?
10
If a low-compression cylinder is identified, a ___________ ___________ test can help determine where the pressure is going.
11
What color is diesel fuel dyed if it is for off-road use only?
12
What statement is true concerning engine vacuum?
13
When a Rzeppa CV joint is modified to become a plunging joint by making the grooves in the inner race longer, it is called a _____.
14
What is the purpose of a drop center?
15
What is electrical potential and what units do we use to measure it?
16
Technician A says a wiring diagram is an excellent tool in locating circuit failures. Technician B says in most cases a wiring diagram is not necessary to locate circuit failures. Who is correct?
17
A locknut retains the steering wheel to the shaft.
18
When troubleshooting an electrical problem, where is a good place to start?
19
The main input for an electric power steering system (EPS) is the ________ sensor
20
The higher the cetane rating, the ________
21
What alignment angle is shown in this drawing?
22
Which of the following statements is LEAST-Likely true?
23
Technician A says that hot air welding takes more skill than airless plastic welding. Technician B says that polyolefinis often used to make flexible bumpers. Who is correct?
24
Another term for the throw out bearing is the:
25
Explain how the vacuum valve is constructed.
26
List and explain the steps followed when making a logical diagnosis.
27
Which sensor is also called the ambient air temperature sensor?
28
Technician A says the technology used in waterborne paint is nearly identical from manufacturer to manufacturer. Technician B says that because the technology is so similar, the application process is also similar from manufacturer to manufacturer. Who is correct?
29
The ____ on ESP- and ERM-equipped vehicles contains both the lateral (side-to-side) and yaw (vehicle rotational) sensors.
30
A battery date code sticker indicates D6. What does this mean?
31
The PDCCH specifies the time-frequency resource allocation for the PDSCH to a UE for this many BWPs for a given slot.
32
Technician A says that FM requires an antenna whereas AM may be heard from a radio without an antenna. Technician B says that speakers reproduce the original sound and their impedance should be matched. Who is right?
33
A battery starter should never be cranked for more than 15 seconds at a time without at least a two-minute cool-off period.
34
When a front or rear air spring is being installed, what precautions must be taken with regard to the air bag?
35
Choose the item in column 2 that best matches each item in column 1. Match the description to the level.
36
Scratches in the deck of the block deep enough to catch your finger nail should be resurfaced.
37
The hybrid AC generator design consists of a rotor assembly with both permanent magnet and wire wound sections.
38
Technician A says that air-fuel ratio lambda numbers lower than 1.0 indicate a lean mixture. Technician B says that air-fuel ratio lambda numbers higher than 1.0 indicate a rich mixture. Which technician is correct?
39
A wide band oxygen sensor needs to be heated to what operating temperature?
40
An AC cabin filter for a BMW is priced at $24.50. If you buy it online, you pay $23.28. What is the percent discount?
41
The purpose of the upper and lower control arms in a short-and-long-arm front suspension system is to:
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