6524629
Descripción
Test por Neil Revollo, actualizado hace más de 1 año
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Creado por Neil Revollo
hace alrededor de 8 años
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Pregunta 1
Pregunta
Why are all HVACR tradesmen advised to enroll in an approved safety-training program?
Respuesta
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Quick and proper treatment of injuries can result in less pain and possibly save lives.
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It is required by OSHA.
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It is required by ANSI.
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It is required by law for all tradesmen that belong to a union.
Pregunta 2
Pregunta
Who is primarily responsible for the technician's safety?
Respuesta
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The employer to ensure that all employees be familiar with safety data concerning hazardous materials.
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OSHA to familiarize employees with safety data concerning hazardous materials.
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The employee to familiarize himself/herself with safety information regarding the workplace.
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The state to ensure that all employees in the workplace are familiar with safety data concerning hazardous materials.
Pregunta 3
Pregunta
While materials that contain asbestos are processed, shaped, or cut:
Respuesta
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An exhaust blower system using a 7% efficient filter must be operating.
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An exhaust blower system using a 5% efficient filter must be operating.
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An exhaust blower system using a 50% efficient filter must be operating.
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An exhaust blower system using a HEPA filter must be operating.
Pregunta 4
Pregunta
Safety protection should be worn:
Respuesta
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When working with liquids, vapors, or solid objects that are extremely hot or cold.
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When working with power tools.
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At all times when performing any work that requires PPE.
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When handling refrigerant cylinders.
Pregunta 5
Pregunta
How should accidents be reported to the company office?
Respuesta
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An accident report form should be filled out and turned into the company office.
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A medical report form should be filled out and turned into the company office.
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A progress report form should be filled out and turned into the company office.
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A privacy report form should be filled out and turned into the company office.
Pregunta 6
Pregunta
How can maintaining an orderly shop be beneficial?
Respuesta
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Less time is spent using required tools or materials.
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There is more frustration when searching for required tools or materials.
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There is less productivity when using required tools or materials.
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Less time is wasted searching for required tools or materials.
Pregunta 7
Pregunta
When working in a confined space where concentrations of harmful substances are very high, why should atmosphere-supplying respirators be worn?
Respuesta
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To enable asphyxiation to occur in a very short time
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To purify air of harmful dust, mist, metal, fumes, and vapors
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To supply clean breathing air from a compressed air source
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To circulate odorless, tasteless, invisible refrigerants
Pregunta 8
Pregunta
How can you easily maintain MSDS documents?
Respuesta
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Log all of the MSDSs in a computer system.
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Alphabetize the MSDSs by active ingredient.
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Put MSDSs in a manilla envelope within the service vehicle.
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Throw the MSDSs in a box and put it in a closet.
Pregunta 9
Pregunta
When should you read the MSDS for a particular chemical product?
Respuesta
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In the event of any injury causing accidents
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After completing the job
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Immediately after exposure to the product
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Before using the product
Pregunta 10
Pregunta
How can you determine what PPE should be used with any particular chemical product?
Respuesta
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Read the MSDS form for that product.
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Call the EPA.
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Ask the foreman.
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Ask another worker.
Pregunta 11
Pregunta
Information that is required on an MSDS includes (you may select more than one):
Respuesta
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Hazardous Ingredients
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Identity of the Chemical
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Physical and Chemical Properties
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Instructions for Use
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Manufacturing Date
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Flammability
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Emergency Contact Information
Pregunta 12
Pregunta
When working with tools, a safety procedure to follow is to:
Respuesta
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Check where the tool was manufactured regarding quality.
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Always read the manufacturer's instructions.
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Read the warranty information.
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Make sure the tools belong to you.
Pregunta 13
Pregunta
Why should tools only be used for the job they were intended to perform?
Respuesta
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The tool manufacturer may sue you for improper tool use.
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The tool manufacturer's can take your tools back if you violate the terms of use agreement.
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They have not been tested for safety for jobs they were not designed for.
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Jobs are billed by the number of tools used.
Pregunta 14
Pregunta
When using portable electric tools with metal cases, you should:
Respuesta
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Lubricate the tool plug before plugging it in.
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Always make sure you are well grounded.
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Always use a GFCI receptacle or GFCI adapter.
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Use as long an extension cord as possible.
Pregunta 15
Pregunta
Before changing the blade in an electric circular saw, you should:
Respuesta
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Unplug the saw.
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Work quickly to reduce the chance of the saw starting.
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Put on heavy gloves.
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Place a screwdriver down in the motor section to prevent the saw from starting.
Pregunta 16
Pregunta
Select safe tool practices. You may select more than one.
Respuesta
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Keep tools sharp and clean
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Do not work with tools in the dark
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Use correct fitting wrenches
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Always ground yourself when working around electricity
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Wear thick gloves when working in the dark
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Arrange your tools around you in a convenient pattern on the floor
Pregunta 17
Pregunta
The base of an extension ladder that is correctly set up will be:
Respuesta
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Exactly 3 feet from the wall.
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As close to vertical as possible.
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1 foot from the wall for every 4 feet in length.
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The same distance away from the wall as the height of the ladder.
Pregunta 18
Pregunta
The top of an extension ladder:
Respuesta
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Should extend at least 36 inches above the point where it rests on the building.
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Flush with the edge of the roof.
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At least 12 inches below the point where it rests on the building.
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At least 12 inches above the point where it rests on the building.
Pregunta 19
Pregunta
How can a confined space, such as a walk-in cooler or underground tunnel become a safety hazard?
Respuesta
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Cell phones do not receive service in confined spaces.
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The oxygen is limited; long exposure can cause suffocation.
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The nitrogen can combine with carbon dioxide to form a toxic gas.
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Electricity flows more readily in a confined space.
Pregunta 20
Pregunta
When entering a confined space:
Respuesta
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You should take a radio or cell phone for emergency calls in case you pass out.
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You should wear clothes that are resistant to spontaneous arcing.
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Another worker should be posted outside the confined space.
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You should leave a note at the entry point.
Pregunta 21
Pregunta
Select safe shop practices. You may select more than one.
Respuesta
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Wipe up liquid spills at the end of every week
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Make sure any tools left on the floor are easily visible
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Keep walking aisles clear of parts and tools
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Store oily shop towels in metal waste containers
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Store face shield by grinding equipment
Pregunta 22
Pregunta
One fire extinguisher in a work area is sufficient:
Respuesta
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If its capacity is large enough to handle a fire that could occur.
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When water is accessible in a work area.
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As long as it is the right class.
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Providing it is capable of extinguishing class A, B, C, and D fires.
Pregunta 23
Pregunta
How is size of an extinguisher related to its ability to put out a fire?
Respuesta
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The more combustible materials, the smaller the extinguisher.
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The fewer combustible materials, the newer the extinguisher.
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The fewer combustible materials, the bigger the extinguisher.
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The more combustible materials, the bigger the extinguisher.
Pregunta 24
Pregunta
To avoid electrical shock, what class fire extinguisher should be used on electrical equipment?
Respuesta
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Class A
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Class B
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Class C
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Class D
Pregunta 25
Pregunta
Select the lifting techniques that will reduce the possibility of injury from lifting a heavy item? Select all that apply.
Respuesta
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Keep the load close to your body
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Lift slowly
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Keep your knees as straight as possible
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Keep your back as straight as possible
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Use your leg muscles to do the work
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Lift quickly
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Use your back muscles to do the work
Pregunta 26
Pregunta
Why should oil or grease never be used to lubricate oxygen or acetylene regulators?
Respuesta
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It will result in the loss of the manufacturer's warranty.
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It decreases the accuracy of the gauges.
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It can react with certain chemicals or materials and result in an explosion.
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It can result in valve damage due to corrosion.
Pregunta 27
Pregunta
Acetylene tanks should always be stored and transported:
Respuesta
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In such a manner as to safely store or transport the greatest number of cylinders possible.
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In a safely secured horizontal position.
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Upright and safely secured in a vertical position.
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Upright, but at an angle of no more than 45 degrees and safely secured.
Pregunta 28
Pregunta
Acetylene should never be used:
Respuesta
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Above 20 psi.
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Above 15 psi.
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Below 20 psi.
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Below 15 psi.
Pregunta 29
Pregunta
Before loading a torch set onto the back of your service truck, you should:
Respuesta
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Close the cylinder valves and remove the regulators.
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Prepare a clutter free area to lay the torch set down for safety.
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Make sure to properly adjust the regulators.
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Vent all the gas from the cylinders.
Pregunta 30
Pregunta
When the safety cap is removed from acetylene cylinders that hold 55 ft3 or more:
Respuesta
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The cylinder must be chained to a cart or structure.
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The cylinder must be in a vertical position.
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The cylinder must have a regulator installed on it.
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The cylinder must be laying in a horizontal position.
Pregunta 31
Pregunta
Which agency requires ground fault interrupters to be used when operating power tools outside?
Respuesta
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UL
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ANSI
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OSHA
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EPA
Pregunta 32
Pregunta
How often should live circuits be worked on?
Respuesta
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Only when absolutely necessary
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Whenever deemed necessary
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When somewhat necessary
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When the power goes out
Pregunta 33
Pregunta
A simple tool that technicians can use to check for energized circuits is:
Respuesta
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A screwdriver with a good insulated handle.
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The non-contact voltage detector.
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The digital storage oscilloscope.
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A wattmeter.
Pregunta 34
Pregunta
Federal law mandates that:
Respuesta
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All used refrigerants must be sold to an ESCO certified reclamation site.
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All used refrigerants must be sold to a UL or ANSI certified reclamation site.
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All used refrigerants must be sold to an OSHA certified reclamation site.
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All used refrigerants must be sold to an EPA certified reclamation site.
Pregunta 35
Pregunta
When refrigerants are exposed to glowing metal surfaces or flames:
Respuesta
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Carbon monoxide is produced and should be vented.
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Lethal phosgene gas is produced.
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Best practices require the use of proper eye protection.
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A respirator capable of filtering fine dust must be worn.
Pregunta 36
Pregunta
Why are used refrigerant oils not disposed of at an automotive oil recycler?
Respuesta
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Used refrigerant oil and used automotive oils are interchangeable.
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Used refrigerant oil and used automotive oils are not compatible.
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Used refrigerant oil and used automotive oils can be mixed during disposal.
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Used refrigerant oil and used automotive oils are compatible.
Pregunta 37
Pregunta
How can a non-toxic, non-flammable refrigerant still be dangerous when released in a confined space?
Respuesta
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The refrigerant can replace the air, causing suffocation.
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A chemical reaction with the air can create a toxic gas.
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The space temperature can quickly drop below freezing.
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A chemical reaction with the air can create a flammable byproduct.
Pregunta 38
Pregunta
Safe methods of heating a refrigerant cylinder during charging include (you may select more than one):
Respuesta
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Warm condenser discharge air
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Boiling water
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An oxy-acetylene torch with a rosebud tip
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An air acetylene torch adjusted to a low flame
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Warm water
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An electric cylinder heater
Pregunta 39
Pregunta
The date of inspection for refrigerant containers that require inspection:
Respuesta
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Must be stamped on the top of the container.
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Should be painted by the number of the refrigerant type on the side of the container.
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Must be painted the same color as the refrigerant container.
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Is always stamped on the bottom of the container.
Pregunta 40
Pregunta
A refrigerant container should never be heated or stored in temperatures above:
Respuesta
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125°F.
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100°F.
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95°F.
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115°F.
Pregunta 41
Pregunta
How would one know if a refillable refrigerant cylinder is safe to use?
Respuesta
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It will have an inspection date stamped at the top.
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It will have an inspection date stamped at the middle.
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It will have an inspection date stamped at the side.
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It will have an inspection date stamped at the bottom.
Pregunta 42
Pregunta
Refrigerant recovery cylinders should not be filled above:
Respuesta
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90% of their volume with liquid.
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70% of their volume with liquid.
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80% of their volume with liquid.
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100% of their volume with liquid.
Pregunta 43
Pregunta
How should a refrigerant cylinder be warmed up during service?
Respuesta
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With warm water not over 125°F.
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Use an open flame in an area that is vented outdoors.
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With live steam if available.
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Place the cylinder in a 350°F oven.
Pregunta 44
Pregunta
Why should fluorocarbon refrigerant systems not be serviced around an open flame?
Respuesta
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Even small quantities of fluorinated refrigerant are explosive.
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The refrigerant might put out the flame.
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The refrigerant is flammable.
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Poisonous gas can be created.
Pregunta 45
Pregunta
The maximum fill level for a refillable refrigerant cylinder is:
Respuesta
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Refillable cylinders should not be refilled with refrigerant.
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80% of its volume.
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100% of its volume if the cylinder is rated for that particular refrigerant.
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70% of its volume.
Pregunta 46
Pregunta
Select the gasses that are safe to use for refrigeration system pressure testing.
Respuesta
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Nitrogen
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Acetylene
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Carbon dioxide
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Oxygen
Pregunta 47
Pregunta
Pressure vessels can be hazardous because:
Respuesta
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They emit harmful UV light at higher working pressures.
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They can cause electrical shock if the internal motor shorts out.
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They are large and technicians might trip over them.
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They can rupture violently like a bomb.
Pregunta 48
Pregunta
Pressure vessels such as boilers should have a placard on or near the vessel that displays:
Respuesta
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The material the vessel is made of and the name of the inspector.
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The manufacturing date and type of material the vessel is made of.
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The parts per million casting impurities and the alloy shear strength.
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When it was inspected and when the next inspection should be.
Pregunta 49
Pregunta
Why might a bad driving record make it difficult to get a job at a service company?
Respuesta
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Service trucks with breathalyzer interlock cost more money.
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The company may be required to post a "Dangerous Driver" sign on their service vehicle.
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Your driving record is only important if you will be driving a bus.
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Your driving record affects the cost of insurance to the company.
Pregunta 50
Pregunta
Why is safe driving a big part of HVACR job safety?
Respuesta
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Many HVACR jobs involve driving to get to the job.
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Employers assume that safe drivers are smarter.
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You have to drive to get to work.
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There are not many other aspects of HVACR safety.
Pregunta 51
Pregunta
In case of an accident, the first step is:
Respuesta
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Report the accident to the office.
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File an insurance report.
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Call 911.
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Administer first aid.
Pregunta 52
Pregunta
Which types of accidents should be reported?
Respuesta
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All accidents
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Only accidents involving loss of blood
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Only accidents where the injured worker is obviously hurt
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