Neil Revollo
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Quiz #1 - Units 3, 22, 32, & 48

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Neil Revollo
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AIR 252-001W - Quiz #1 - Units 3, 22, 32, & 48

Question 1 of 52

1

Why are all HVACR tradesmen advised to enroll in an approved safety-training program?

Select one of the following:

  • Quick and proper treatment of injuries can result in less pain and possibly save lives.

  • It is required by OSHA.

  • It is required by ANSI.

  • It is required by law for all tradesmen that belong to a union.

Explanation

Question 2 of 52

1

Who is primarily responsible for the technician's safety?

Select one of the following:

  • The employer to ensure that all employees be familiar with safety data concerning hazardous materials.

  • OSHA to familiarize employees with safety data concerning hazardous materials.

  • The employee to familiarize himself/herself with safety information regarding the workplace.

  • The state to ensure that all employees in the workplace are familiar with safety data concerning hazardous materials.

Explanation

Question 3 of 52

1

While materials that contain asbestos are processed, shaped, or cut:

Select one of the following:

  • An exhaust blower system using a 7% efficient filter must be operating.

  • An exhaust blower system using a 5% efficient filter must be operating.

  • An exhaust blower system using a 50% efficient filter must be operating.

  • An exhaust blower system using a HEPA filter must be operating.

Explanation

Question 4 of 52

1

Safety protection should be worn:

Select one of the following:

  • When working with liquids, vapors, or solid objects that are extremely hot or cold.

  • When working with power tools.

  • At all times when performing any work that requires PPE.

  • When handling refrigerant cylinders.

Explanation

Question 5 of 52

1

How should accidents be reported to the company office?

Select one of the following:

  • An accident report form should be filled out and turned into the company office.

  • A medical report form should be filled out and turned into the company office.

  • A progress report form should be filled out and turned into the company office.

  • A privacy report form should be filled out and turned into the company office.

Explanation

Question 6 of 52

1

How can maintaining an orderly shop be beneficial?

Select one of the following:

  • Less time is spent using required tools or materials.

  • There is more frustration when searching for required tools or materials.

  • There is less productivity when using required tools or materials.

  • Less time is wasted searching for required tools or materials.

Explanation

Question 7 of 52

1

When working in a confined space where concentrations of harmful substances are very high, why should atmosphere-supplying respirators be worn?

Select one of the following:

  • To enable asphyxiation to occur in a very short time

  • To purify air of harmful dust, mist, metal, fumes, and vapors

  • To supply clean breathing air from a compressed air source

  • To circulate odorless, tasteless, invisible refrigerants

Explanation

Question 8 of 52

1

How can you easily maintain MSDS documents?

Select one of the following:

  • Log all of the MSDSs in a computer system.

  • Alphabetize the MSDSs by active ingredient.

  • Put MSDSs in a manilla envelope within the service vehicle.

  • Throw the MSDSs in a box and put it in a closet.

Explanation

Question 9 of 52

1

When should you read the MSDS for a particular chemical product?

Select one of the following:

  • In the event of any injury causing accidents

  • After completing the job

  • Immediately after exposure to the product

  • Before using the product

Explanation

Question 10 of 52

1

How can you determine what PPE should be used with any particular chemical product?

Select one of the following:

  • Read the MSDS form for that product.

  • Call the EPA.

  • Ask the foreman.

  • Ask another worker.

Explanation

Question 11 of 52

1

Information that is required on an MSDS includes (you may select more than one):

Select one or more of the following:

  • Hazardous Ingredients

  • Identity of the Chemical

  • Physical and Chemical Properties

  • Instructions for Use

  • Manufacturing Date

  • Flammability

  • Emergency Contact Information

Explanation

Question 12 of 52

1

When working with tools, a safety procedure to follow is to:

Select one of the following:

  • Check where the tool was manufactured regarding quality.

  • Always read the manufacturer's instructions.

  • Read the warranty information.

  • Make sure the tools belong to you.

Explanation

Question 13 of 52

1

Why should tools only be used for the job they were intended to perform?

Select one of the following:

  • The tool manufacturer may sue you for improper tool use.

  • The tool manufacturer's can take your tools back if you violate the terms of use agreement.

  • They have not been tested for safety for jobs they were not designed for.

  • Jobs are billed by the number of tools used.

Explanation

Question 14 of 52

1

When using portable electric tools with metal cases, you should:

Select one of the following:

  • Lubricate the tool plug before plugging it in.

  • Always make sure you are well grounded.

  • Always use a GFCI receptacle or GFCI adapter.

  • Use as long an extension cord as possible.

Explanation

Question 15 of 52

1

Before changing the blade in an electric circular saw, you should:

Select one of the following:

  • Unplug the saw.

  • Work quickly to reduce the chance of the saw starting.

  • Put on heavy gloves.

  • Place a screwdriver down in the motor section to prevent the saw from starting.

Explanation

Question 16 of 52

1

Select safe tool practices. You may select more than one.

Select one or more of the following:

  • Keep tools sharp and clean

  • Do not work with tools in the dark

  • Use correct fitting wrenches

  • Always ground yourself when working around electricity

  • Wear thick gloves when working in the dark

  • Arrange your tools around you in a convenient pattern on the floor

Explanation

Question 17 of 52

1

The base of an extension ladder that is correctly set up will be:

Select one of the following:

  • Exactly 3 feet from the wall.

  • As close to vertical as possible.

  • 1 foot from the wall for every 4 feet in length.

  • The same distance away from the wall as the height of the ladder.

Explanation

Question 18 of 52

1

The top of an extension ladder:

Select one of the following:

  • Should extend at least 36 inches above the point where it rests on the building.

  • Flush with the edge of the roof.

  • At least 12 inches below the point where it rests on the building.

  • At least 12 inches above the point where it rests on the building.

Explanation

Question 19 of 52

1

How can a confined space, such as a walk-in cooler or underground tunnel become a safety hazard?

Select one of the following:

  • Cell phones do not receive service in confined spaces.

  • The oxygen is limited; long exposure can cause suffocation.

  • The nitrogen can combine with carbon dioxide to form a toxic gas.

  • Electricity flows more readily in a confined space.

Explanation

Question 20 of 52

1

When entering a confined space:

Select one of the following:

  • You should take a radio or cell phone for emergency calls in case you pass out.

  • You should wear clothes that are resistant to spontaneous arcing.

  • Another worker should be posted outside the confined space.

  • You should leave a note at the entry point.

Explanation

Question 21 of 52

1

Select safe shop practices. You may select more than one.

Select one or more of the following:

  • Wipe up liquid spills at the end of every week

  • Make sure any tools left on the floor are easily visible

  • Keep walking aisles clear of parts and tools

  • Store oily shop towels in metal waste containers

  • Store face shield by grinding equipment

Explanation

Question 22 of 52

1

One fire extinguisher in a work area is sufficient:

Select one of the following:

  • If its capacity is large enough to handle a fire that could occur.

  • When water is accessible in a work area.

  • As long as it is the right class.

  • Providing it is capable of extinguishing class A, B, C, and D fires.

Explanation

Question 23 of 52

1

How is size of an extinguisher related to its ability to put out a fire?

Select one of the following:

  • The more combustible materials, the smaller the extinguisher.

  • The fewer combustible materials, the newer the extinguisher.

  • The fewer combustible materials, the bigger the extinguisher.

  • The more combustible materials, the bigger the extinguisher.

Explanation

Question 24 of 52

1

To avoid electrical shock, what class fire extinguisher should be used on electrical equipment?

Select one of the following:

  • Class A

  • Class B

  • Class C

  • Class D

Explanation

Question 25 of 52

1

Select the lifting techniques that will reduce the possibility of injury from lifting a heavy item? Select all that apply.

Select one or more of the following:

  • Keep the load close to your body

  • Lift slowly

  • Keep your knees as straight as possible

  • Keep your back as straight as possible

  • Use your leg muscles to do the work

  • Lift quickly

  • Use your back muscles to do the work

Explanation

Question 26 of 52

1

Why should oil or grease never be used to lubricate oxygen or acetylene regulators?

Select one of the following:

  • It will result in the loss of the manufacturer's warranty.

  • It decreases the accuracy of the gauges.

  • It can react with certain chemicals or materials and result in an explosion.

  • It can result in valve damage due to corrosion.

Explanation

Question 27 of 52

1

Acetylene tanks should always be stored and transported:

Select one of the following:

  • In such a manner as to safely store or transport the greatest number of cylinders possible.

  • In a safely secured horizontal position.

  • Upright and safely secured in a vertical position.

  • Upright, but at an angle of no more than 45 degrees and safely secured.

Explanation

Question 28 of 52

1

Acetylene should never be used:

Select one of the following:

  • Above 20 psi.

  • Above 15 psi.

  • Below 20 psi.

  • Below 15 psi.

Explanation

Question 29 of 52

1

Before loading a torch set onto the back of your service truck, you should:

Select one of the following:

  • Close the cylinder valves and remove the regulators.

  • Prepare a clutter free area to lay the torch set down for safety.

  • Make sure to properly adjust the regulators.

  • Vent all the gas from the cylinders.

Explanation

Question 30 of 52

1

When the safety cap is removed from acetylene cylinders that hold 55 ft3 or more:

Select one of the following:

  • The cylinder must be chained to a cart or structure.

  • The cylinder must be in a vertical position.

  • The cylinder must have a regulator installed on it.

  • The cylinder must be laying in a horizontal position.

Explanation

Question 31 of 52

1

Which agency requires ground fault interrupters to be used when operating power tools outside?

Select one of the following:

  • UL

  • ANSI

  • OSHA

  • EPA

Explanation

Question 32 of 52

1

How often should live circuits be worked on?

Select one of the following:

  • Only when absolutely necessary

  • Whenever deemed necessary

  • When somewhat necessary

  • When the power goes out

Explanation

Question 33 of 52

1

A simple tool that technicians can use to check for energized circuits is:

Select one of the following:

  • A screwdriver with a good insulated handle.

  • The non-contact voltage detector.

  • The digital storage oscilloscope.

  • A wattmeter.

Explanation

Question 34 of 52

1

Federal law mandates that:

Select one of the following:

  • All used refrigerants must be sold to an ESCO certified reclamation site.

  • All used refrigerants must be sold to a UL or ANSI certified reclamation site.

  • All used refrigerants must be sold to an OSHA certified reclamation site.

  • All used refrigerants must be sold to an EPA certified reclamation site.

Explanation

Question 35 of 52

1

When refrigerants are exposed to glowing metal surfaces or flames:

Select one of the following:

  • Carbon monoxide is produced and should be vented.

  • Lethal phosgene gas is produced.

  • Best practices require the use of proper eye protection.

  • A respirator capable of filtering fine dust must be worn.

Explanation

Question 36 of 52

1

Why are used refrigerant oils not disposed of at an automotive oil recycler?

Select one of the following:

  • Used refrigerant oil and used automotive oils are interchangeable.

  • Used refrigerant oil and used automotive oils are not compatible.

  • Used refrigerant oil and used automotive oils can be mixed during disposal.

  • Used refrigerant oil and used automotive oils are compatible.

Explanation

Question 37 of 52

1

How can a non-toxic, non-flammable refrigerant still be dangerous when released in a confined space?

Select one of the following:

  • The refrigerant can replace the air, causing suffocation.

  • A chemical reaction with the air can create a toxic gas.

  • The space temperature can quickly drop below freezing.

  • A chemical reaction with the air can create a flammable byproduct.

Explanation

Question 38 of 52

1

Safe methods of heating a refrigerant cylinder during charging include (you may select more than one):

Select one or more of the following:

  • Warm condenser discharge air

  • Boiling water

  • An oxy-acetylene torch with a rosebud tip

  • An air acetylene torch adjusted to a low flame

  • Warm water

  • An electric cylinder heater

Explanation

Question 39 of 52

1

The date of inspection for refrigerant containers that require inspection:

Select one of the following:

  • Must be stamped on the top of the container.

  • Should be painted by the number of the refrigerant type on the side of the container.

  • Must be painted the same color as the refrigerant container.

  • Is always stamped on the bottom of the container.

Explanation

Question 40 of 52

1

A refrigerant container should never be heated or stored in temperatures above:

Select one of the following:

  • 125°F.

  • 100°F.

  • 95°F.

  • 115°F.

Explanation

Question 41 of 52

1

How would one know if a refillable refrigerant cylinder is safe to use?

Select one of the following:

  • It will have an inspection date stamped at the top.

  • It will have an inspection date stamped at the middle.

  • It will have an inspection date stamped at the side.

  • It will have an inspection date stamped at the bottom.

Explanation

Question 42 of 52

1

Refrigerant recovery cylinders should not be filled above:

Select one of the following:

  • 90% of their volume with liquid.

  • 70% of their volume with liquid.

  • 80% of their volume with liquid.

  • 100% of their volume with liquid.

Explanation

Question 43 of 52

1

How should a refrigerant cylinder be warmed up during service?

Select one of the following:

  • With warm water not over 125°F.

  • Use an open flame in an area that is vented outdoors.

  • With live steam if available.

  • Place the cylinder in a 350°F oven.

Explanation

Question 44 of 52

1

Why should fluorocarbon refrigerant systems not be serviced around an open flame?

Select one of the following:

  • Even small quantities of fluorinated refrigerant are explosive.

  • The refrigerant might put out the flame.

  • The refrigerant is flammable.

  • Poisonous gas can be created.

Explanation

Question 45 of 52

1

The maximum fill level for a refillable refrigerant cylinder is:

Select one of the following:

  • Refillable cylinders should not be refilled with refrigerant.

  • 80% of its volume.

  • 100% of its volume if the cylinder is rated for that particular refrigerant.

  • 70% of its volume.

Explanation

Question 46 of 52

1

Select the gasses that are safe to use for refrigeration system pressure testing.

Select one or more of the following:

  • Nitrogen

  • Acetylene

  • Carbon dioxide

  • Oxygen

Explanation

Question 47 of 52

1

Pressure vessels can be hazardous because:

Select one of the following:

  • They emit harmful UV light at higher working pressures.

  • They can cause electrical shock if the internal motor shorts out.

  • They are large and technicians might trip over them.

  • They can rupture violently like a bomb.

Explanation

Question 48 of 52

1

Pressure vessels such as boilers should have a placard on or near the vessel that displays:

Select one or more of the following:

  • The material the vessel is made of and the name of the inspector.

  • The manufacturing date and type of material the vessel is made of.

  • The parts per million casting impurities and the alloy shear strength.

  • When it was inspected and when the next inspection should be.

Explanation

Question 49 of 52

1

Why might a bad driving record make it difficult to get a job at a service company?

Select one of the following:

  • Service trucks with breathalyzer interlock cost more money.

  • The company may be required to post a "Dangerous Driver" sign on their service vehicle.

  • Your driving record is only important if you will be driving a bus.

  • Your driving record affects the cost of insurance to the company.

Explanation

Question 50 of 52

1

Why is safe driving a big part of HVACR job safety?

Select one of the following:

  • Many HVACR jobs involve driving to get to the job.

  • Employers assume that safe drivers are smarter.

  • You have to drive to get to work.

  • There are not many other aspects of HVACR safety.

Explanation

Question 51 of 52

1

In case of an accident, the first step is:

Select one of the following:

  • Report the accident to the office.

  • File an insurance report.

  • Call 911.

  • Administer first aid.

Explanation

Question 52 of 52

1

Which types of accidents should be reported?

Select one of the following:

  • All accidents

  • Only accidents involving loss of blood

  • Only accidents where the injured worker is obviously hurt

Explanation

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