Ch. 60 Airbags and Pretentioner Circuits

A seat belt pretensioner is ____.

A device that contains an explosive charge, used to remove slack from the seat belt in the even of a collision, and used to force the occupant back into position against the seat back in the even of a collision

A vehicle is being repaired after an airbag deployment. Technician A says that the inflator module should be handled as if it is still alive. Technician B says rubber gloves should be worn to prevent skin irritation. Which Technician is correct?

Both Technicians A & B

Two technicians were discussing the use of front airbags in automobiles. Technician A stated that front airbag systems are not designed to inflate during side or rear impact. Technician B stated that front airbags consist of folded up nylon bags located in the steering wheel of the vehicle. Which of the following about the scenario is​ true?

Both technicians A & B

Which of the following is the first step while disarming an airbag system during the service of a​ vehicle?

Disconnect the negative battery cable of the vehicle.

The electrical terminals used for airbag systems are unique because they are ____.

Gold plated

Which of the following is a precaution that needs to be followed while working with or near​ airbags?

In the event of a​ collision, the inflator module and all sensors usually must be replaced.

What conducts power and ground to the driver's side airbag?

Clockspring

Which of the following precautions is taken when working with or around​ airbags?

Never jar or strike a sensor

Two technicians were discussing the types of sensors used in a passenger presence system of an automobile. Technician A stated that capacitive strip sensors in passenger presence system use several flexible conductive metal strips under the seat cushion. Technician B stated that the sensor strips transmit and receive a​ high-level electric​ field, which changes due to the weight of the front passenger seat occupant. Which of the following about the scenario is​ true?

Only Technician A

Technician A says that a deployed airbag can be repacked, reused, and reinstalled in the vehicle. Technician B says that a deployed airbag should be discarded and replaced with an entire new assembly. Which technician is correct?

Only Technician B

Two technicians were discussing the role of retractors in the effective functioning of safety belts. Technician A stated that nonlocking retractors are used on some vehicles. Technician B stated that emergency locking retractors lock the position of the safety belt in the event of a collision or rollover. Which of the following about the scenario is​ true?

Only Technician B

Which of the following is most likely used by airbag systems to produce an audible warning when a system fault occurs or if the warning lamp is​ inoperative?

Tone generator

Which of the following types of occupant sensors uses resistors that change their resistance based on the stress that is​ applied?

force-sensing resistor sensor

Which of the following types of occupant sensors uses a bag containing silicone with a pressure sensor attached to​ it?

gel-filled bladder sensor

Which of the following types of airbag inflators uses sodium azide pellets​ and, when​ ignited, generates a large quantity of nitrogen gas that quickly inflates the​ airbag?

solid fuel

Driver and/or passenger front airbags will only deploy if a collision occurs how many degrees from straight ahead?

30 degrees

In the context of occupant detection​ systems, which of the following is most likely to occur if only 10 to 37 lb is detected on the passenger​ seat?

The passenger side airbag will be disabled and the disabled airbag light will be on.

Where are shorting bars used?

At the connectors for airbags

The following steps are involved in checking service information for the exact procedure for disarming airbags except​ ________.

disconnecting the positive battery cable

Which of the following types of airbag sensors is housed in an airtight package with nitrogen gas inside to prevent harmful corrosion of the sensor​ parts?

rolled up​ stainless-steel ribbon-type sensor

The airbag is disarmed whenever performing service work on any of the following locations except the​ ________.

safety belt

How many sensors must be triggered at the same time to ause an airbag deployment?

two

What color are the airbag electrical connectors and conduit?

Yellow

A​ ________ is an explosive device that is part of the seat belt retractor assembly and tightens the seat belt as the airbag is being deployed.

pretensioner

In the context of the deployment of front​ airbags, which of the following statements is​ true?

Front airbags are deployed for frontal impacts within 30 degrees of a vehicle center.

Two technicians are discussing dual-stage airbags. Technician A says that a deployed airbag is safe to handle regardless of which stage caused the deployment of the airbag. Technician B says that both stages ignite, but at different speeds depending on the speed of the vehicle. Which technician is correct?

Neither technician A nor B

Two technicians were discussing the procedure to diagnose and repair common faults in airbag systems. Technician A stated that the electrical airbag components are monitored by applying a​ small-signal voltage from the airbag controller through the various sensors and components. Technician B stated that each component and sensor uses a resistor in series with the load or open sensor switch for use by the diagnostic signals. Which of the following about the scenario is​ true?

Only Technician A

Two technicians were discussing the diagnostic and service procedure of an airbag system of a vehicle. Technician A stated that an airbag system cannot detect system electrical faults by itself. Technician B stated that some airbag systems use a tone generator that produces an audible warning when a system fault occurs. Which of the following about the scenario is​ true?

Only Technician B

Which of the following is most likely the purpose of emergency locking seat belt retractors that are equipped on safety​ belts?

They lock the position of the safety belt in the event of a collision or rollover.

Which of the following types of retractors are most likely used to secure the position of the safety belt in the event of a collision or​ rollover?

emergency locking retractors