Why are all HVACR tradesmen advised to enroll in an approved safety-training program?
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.
Who is primarily responsible for the technician's safety?
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.
While materials that contain asbestos are processed, shaped, or cut:
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.
Safety protection should be worn:
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.
How should accidents be reported to the company office?
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.
How can maintaining an orderly shop be beneficial?
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.
When working in a confined space where concentrations of harmful substances are very high, why should atmosphere-supplying respirators be worn?
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
How can you easily maintain MSDS documents?
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.
When should you read the MSDS for a particular chemical product?
In the event of any injury causing accidents
After completing the job
Immediately after exposure to the product
Before using the product
How can you determine what PPE should be used with any particular chemical product?
Read the MSDS form for that product.
Call the EPA.
Ask the foreman.
Ask another worker.
Information that is required on an MSDS includes (you may select more than one):
Hazardous Ingredients
Identity of the Chemical
Physical and Chemical Properties
Instructions for Use
Manufacturing Date
Flammability
Emergency Contact Information
When working with tools, a safety procedure to follow is to:
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.
Why should tools only be used for the job they were intended to perform?
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.
When using portable electric tools with metal cases, you should:
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.
Before changing the blade in an electric circular saw, you should:
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.
Select safe tool practices. You may select more than one.
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
The base of an extension ladder that is correctly set up will be:
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.
The top of an extension ladder:
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.
How can a confined space, such as a walk-in cooler or underground tunnel become a safety hazard?
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.
When entering a confined space:
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.
Select safe shop practices. You may select more than one.
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
One fire extinguisher in a work area is sufficient:
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.
How is size of an extinguisher related to its ability to put out a fire?
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.
To avoid electrical shock, what class fire extinguisher should be used on electrical equipment?
Class A
Class B
Class C
Class D
Select the lifting techniques that will reduce the possibility of injury from lifting a heavy item? Select all that apply.
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
Why should oil or grease never be used to lubricate oxygen or acetylene regulators?
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.
Acetylene tanks should always be stored and transported:
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.
Acetylene should never be used:
Above 20 psi.
Above 15 psi.
Below 20 psi.
Below 15 psi.
Before loading a torch set onto the back of your service truck, you should:
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.
When the safety cap is removed from acetylene cylinders that hold 55 ft3 or more:
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.
Which agency requires ground fault interrupters to be used when operating power tools outside?
UL
ANSI
OSHA
EPA
How often should live circuits be worked on?
Only when absolutely necessary
Whenever deemed necessary
When somewhat necessary
When the power goes out
A simple tool that technicians can use to check for energized circuits is:
A screwdriver with a good insulated handle.
The non-contact voltage detector.
The digital storage oscilloscope.
A wattmeter.
Federal law mandates that:
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.
When refrigerants are exposed to glowing metal surfaces or flames:
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.
Why are used refrigerant oils not disposed of at an automotive oil recycler?
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.
How can a non-toxic, non-flammable refrigerant still be dangerous when released in a confined space?
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.
Safe methods of heating a refrigerant cylinder during charging include (you may select more than one):
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
The date of inspection for refrigerant containers that require inspection:
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.
A refrigerant container should never be heated or stored in temperatures above:
125°F.
100°F.
95°F.
115°F.
How would one know if a refillable refrigerant cylinder is safe to use?
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.
Refrigerant recovery cylinders should not be filled above:
90% of their volume with liquid.
70% of their volume with liquid.
80% of their volume with liquid.
100% of their volume with liquid.
How should a refrigerant cylinder be warmed up during service?
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.
Why should fluorocarbon refrigerant systems not be serviced around an open flame?
Even small quantities of fluorinated refrigerant are explosive.
The refrigerant might put out the flame.
The refrigerant is flammable.
Poisonous gas can be created.
The maximum fill level for a refillable refrigerant cylinder is:
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.
Select the gasses that are safe to use for refrigeration system pressure testing.
Nitrogen
Acetylene
Carbon dioxide
Oxygen
Pressure vessels can be hazardous because:
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.
Pressure vessels such as boilers should have a placard on or near the vessel that displays:
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.
Why might a bad driving record make it difficult to get a job at a service company?
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.
Why is safe driving a big part of HVACR job safety?
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.
In case of an accident, the first step is:
Report the accident to the office.
File an insurance report.
Call 911.
Administer first aid.
Which types of accidents should be reported?
All accidents
Only accidents involving loss of blood
Only accidents where the injured worker is obviously hurt
