Question 1

OSHA was established to improve workers wages.

Accepted Answer

OSHA (Occupational Safety and Health Administration) was established to ensure safe and healthy working conditions for workers, not for improving wages.

Question 2

Technician A says that when working on a refrigerant system you should work in a well-ventilated area.Technician B says to determine the type of refrigerant used in a system,a refrigerant identifier should be used prior to servicing the vehicles refrigerant system.Who is correct?

Accepted Answer

Technician A is correct that working in a well-ventilated area when working on a refrigerant system is important to prevent exposure to potentially harmful refrigerant gases. Technician B is also correct that a refrigerant identifier should be used to determine the type of refrigerant used in a system to avoid cross-contamination and ensure that the correct refrigerant is used during servicing. Therefore, both technicians are correct.

Question 3

Technician A says a vacuum pump is an essential piece of equipment for servicing a refrigerant system.Technician B says that you only need one manifold gauge set and it may be used for any type of refrigerant you need to service.Who is correct?

Accepted Answer

Technician A is correct. A vacuum pump is needed to evacuate the refrigerant system of any impurities and moisture before recharging it. Technician B is incorrect as different types of refrigerants may have different pressure ranges, requiring a manifold gauge set specifically calibrated for that refrigerant.

Question 4

Technician A says a service information system may include estimating and shop management software.Technician B says service information you find on the internet is the most accurate information.Who is correct?

Accepted Answer

Technician A is correct in stating that a service information system may include estimating and shop management software. However, Technician B is incorrect in stating that service information found on the internet is the most accurate information. The accuracy of service information found on the internet can vary widely, and professional technicians should rely on and refer to manufacturer-approved service information whenever possible.

Question 5

A dual channel recovery system can recover either refrigerant or antifreeze.

Accepted Answer

A dual channel recovery system is designed for recovering refrigerants from air conditioning systems or refrigeration units, not for antifreeze recovery, which is a different substance used in cooling systems of vehicles or machinery.

Question 6

Technician A says that a repair order does not need to be filled out for a no charge (free)repair.Technician B says that the repair order is a legal document that must be filled out for every vehicle worked on.Who is correct?

Accepted Answer

Technician B is correct. A repair order is a legal document that must be filled out for every vehicle regardless of whether the repair is free or not. It serves as a record of the work done on the vehicle and protects both the customer and the shop in the event of disputes or legal issues.

Question 7

Vacation time is considered a fringe benefit.

Accepted Answer

Vacation time is considered a fringe benefit as it is not required by law and is offered as an additional perk to employees by an employer. This benefit can vary depending on the company's policy, employee status, and tenure.

Question 8

Service procedures generally provide information in a step-by-step sequence based on manufacturer recommendations.

Accepted Answer

Service procedures provide information in a step-by-step sequence following the manufacturer's recommendations to ensure proper maintenance and repairs.

Question 9

Because of the shortage of technicians habitual lateness is often tolerated.

Accepted Answer

Tolerating habitual lateness due to a shortage of technicians is not a standard or advisable practice in professional settings, as it can undermine work discipline and productivity. Organizations typically seek other solutions to address staffing shortages.

Question 10

A shop that services refrigerant systems does not have to have a refrigerant recovery and recycling system.

Accepted Answer

Shops that service refrigerant systems are required to have a refrigerant recovery and recycling system to prevent the release of harmful refrigerants into the environment. This is mandated by the Environmental Protection Agency (EPA) under the Clean Air Act.

Question 11

Refrigerant identifiers are being discussed.Technician A says a refrigerant identifier will display R-12 if the refrigerant is 90% CFC-12 by weight.Technician B says a refrigerant identifier will display R-134a if the refrigerant is 98% HFC-134a by weight.Who is correct?

Accepted Answer

A refrigerant identifier typically requires a higher purity level than 90% to display a specific refrigerant type like R-12. However, Technician B is correct as identifiers generally require around 98% purity to display R-134a.

Question 12

Technician A says a manifold and gauge sets is a manifold block complete with gauges and charging hoses.Technician B says a can tap is a device used to pierce,dispense,and seal small cans of refrigerant.Who is correct?

Accepted Answer

Both technicians are correct. A manifold gauge set is a block with multiple valves and gauges that allows technicians to connect to different parts of an HVAC system. The gauges give a reading of the pressure and temperature of the refrigerant, while the hoses allow refrigerant to flow between the system and the gauges. A can tap, as described by Technician B, is a tool used to puncture the top of small refrigerant cans, allowing the refrigerant to be dispensed and then sealed again.

Question 13

No special equipment is required to service HFC-134a (R-134a)refrigerant systems.

Accepted Answer

Special equipment is required to service HFC-134a (R-134a) refrigerant systems to ensure safe handling, prevent refrigerant release, and maintain system integrity.

Question 14

Technician A says as an employee your obligation is to be a loyal,caring individual,and have the ability to follow directions.Technician B says that you are not entitled to a clean,safe place to work.Who is correct?

Accepted Answer

Technician A is correct in stating that employees should be loyal, caring, and able to follow directions. These are important qualities in any job. Technician B is incorrect in stating that employees are not entitled to a clean, safe place to work. Employers have a legal and moral obligation to provide a safe working environment.

Question 15

All of the following are basic employee obligations that must be adhered to EXCEPT:

Accepted Answer

All of the choices listed, except for tardiness, are basic employee obligations. Tardiness shows a lack of dependability and responsibility, which are important for any employee to possess. A positive attitude is also important for creating a good work environment, while pride in one's work shows a commitment to doing a job well.

Question 16

A vacuum pump is used to remove refrigerant from the system.

Accepted Answer

The answer of A vacuum pump is used to remove...

Question 17

Technician A says shops must have dedicated manifold and gauge sets for each manufacturer-approved refrigerant.Technician B says a shop should also have a third set for contaminated refrigerant.Who is correct?

Accepted Answer

Both technicians are correct. Shops must have dedicated manifold and gauge sets for each manufacturer-approved refrigerant to avoid cross-contamination and ensure correct readings. Additionally, having a third set for contaminated refrigerant can prevent contamination of the other sets and help diagnose issues with the system.

Question 18

Technician A says to use the VIN to collect the correct repair information.Technician B says repair procedures will cover diagnostic routines and methods to perform the repair.Who is correct?

Accepted Answer

Both technicians are correct. Using the VIN is a crucial step in collecting the correct repair information, as it allows for identification of the vehicle's specific make, model, and year. Repair procedures will then provide diagnostic routines and methods for performing the repair, allowing for efficient and effective troubleshooting and fixing of the issue. Therefore, both pieces of advice are important and complementary.

Question 19

A halide leak detector is the best type to use to locate hard to find refrigerant leaks.

Accepted Answer

Electronic leak detectors are generally considered more effective and sensitive for finding hard-to-detect refrigerant leaks compared to halide torch detectors.

Question 20

MACS stands for Modern Automotive Control Systems.

Accepted Answer

MACS stands for Mobile Air Conditioning Society, primarily associated with automotive air conditioning.

Quiz 13: Extenssion 2: Typical Shop Procedures and Tools

OSHA was established to improve workers wages.

Technician A says that when working on a refrigerant system you should work in a well-ventilated area.Technician B says to determine the type of refrigerant used in a system,a refrigerant identifier should be used prior to servicing the vehicles refrigerant system.Who is correct?

Technician A says a vacuum pump is an essential piece of equipment for servicing a refrigerant system.Technician B says that you only need one manifold gauge set and it may be used for any type of refrigerant you need to service.Who is correct?

Technician A says a service information system may include estimating and shop management software.Technician B says service information you find on the internet is the most accurate information.Who is correct?

A dual channel recovery system can recover either refrigerant or antifreeze.

Technician A says that a repair order does not need to be filled out for a no charge (free) repair.Technician B says that the repair order is a legal document that must be filled out for every vehicle worked on.Who is correct?