Term
| A low voltage circuit may be tested with your fingers to determine if it is hot. |
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Definition
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Term
| A ladder must be carried low, horizontal, and balanced at the mid-point. |
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Definition
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Term
| An open flame should never contact refrigerants because it produces poisonous phosgene gas. |
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Definition
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Term
| It is OK to bypass safety controls used on HVAC equipment because they often cause unnecessary shutdowns. |
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Definition
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Term
| Oxygen and nitrogen cylinders must have the protective valve caps securely in place when removed from the service cart |
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Definition
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Term
| On a 115VAC circuit, since neutral and ground are connected at the electrical service, it is reasonable to assume that the white wire will not carry potential voltage to ground. |
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Definition
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Term
| Liquid refrigerant, escaping from a system poses little danger to your eyes or skin…that is unless the refrigerant and oil in the system has become acidic.Q |
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Definition
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Term
| All compressor terminals must have the protective cover in place prior to start-up. An internal short can blow a terminal out like a bullet. |
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Definition
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Term
| While 440 and 208-230 volt kills, 115 volt is of little danger |
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Definition
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Term
| Skin and eyes may be burned by acid if they come in contact with compressor crankcase oil. |
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Definition
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Term
| Oxygen may never be used to pressurize a refrigerant system. The result could be deadly. |
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Definition
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Term
| A capacitor covered in oil is safe to touch without gloves. |
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Definition
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Term
| Always carry a screwdriver in your pocket, it saves time and unnecessary trips to the service truck. |
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Definition
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Term
| You can use any size tool as long as it gets the job done. |
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Definition
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Term
| The drill chuck-key should be left in the chuck during use. |
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Definition
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Term
| At a minimum, report all burns or other injuries to the instructor at the end of the lab period. |
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Definition
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Term
| Mechanical disconnect of electrical power, and then verification of no electrical power with a functioning volt meter is the proper method for ensuring that an HVAC unit is safe to work-on. |
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Definition
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Term
| It is safe to run in the air conditioning shop so long as you have cleared a path to do so. |
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Definition
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Term
| The power must always be switched off and secured whenever you diagnose equipment. |
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Definition
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Term
| Files longer than six inches may be used as a pry bar if they have handles. |
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Definition
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Term
| A proven way to test a hammer is to hit the face of the hammer against another hammer. |
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Definition
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Term
| An electrical circuit can be checked with your fingers if you are positive the voltage is less than 50 VAC (class II). |
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Definition
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Term
| Working around running belts and fans is seldom dangerous. |
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Definition
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Term
| Gasoline can be used to clean greasy parts if the area is well ventilated. |
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Definition
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Term
| Never turn a switch on or off without knowing what is at the other end of the circuit. |
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Definition
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Term
| A three wire grounded receptacle and plug is necessary for a machine to run safely (if it is not double insulated). |
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Definition
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Term
| Use of a proximity voltage sensor is a reasonable tactic for verification that electrical power is off and it is safe to work on an HVAC unit. |
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Definition
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Term
| Using compressed air, nitrogen, or C02 can be dangerous. |
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Definition
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Term
| Always check to make sure that all parts are securely in place before considering a job complete and starting a machine |
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Definition
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Term
| It is best to wait until the end of the work period before wiping up grease, water or oil. |
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Definition
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Term
| The rules of conduct for the FCC HVAC Laboratory are similar to those of the work place, horseplay or loud and disruptive behavior is forbidden. |
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Definition
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Term
| Aluminum ladders are safe for use around electrical equipment, but insulated pads must be installed on the feet of the ladder. |
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Definition
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Term
| As long as the torch is directed below the level of the liquid refrigerant in a cylinder, and is kept moving so as not to create a hot spot, it's OK to heat the cylinder with a torch to increase vapor pressure. |
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Definition
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Term
| It is possible for your hand to suffer frostbite if it comes in contact with liquid refrigerant. |
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Definition
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Term
| To insure proper operation of an oxygen regulator, light oil should be used on the regulator threads. |
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Definition
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Term
| A necessary safety practice for a technician is to keep a padlock with only one key available to lock breakers or disconnects in the open position during repairs. When a breaker or disconnect is locked, the locking mechanism is also tagged. This process is called lockout-tagout. |
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Definition
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Term
If unsure about the safe use of any tools or equipment in the Air Conditioning Lab, a student should
ask for help from the instructor, but only after trying to use the equipment at least once. |
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Definition
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Term
| If the electrical disconnect or breaker has been turned OFF, it is reasonable to assume that all electrical power has been disconnected and the HVAC unit is safe to work-on. |
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Definition
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Term
| The top rung(s) of a step or extension ladder should be stood upon only for those hard to reach places, which are almost too tall for your ladder. |
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Definition
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Term
| On a bench grinder proper clearance between the work stop and the grinding wheel is: |
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Definition
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Term
| You need to ask a fellow student or instructor a question, but he is working with operating equipment. What is the best way to catch the persons attention? |
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Definition
| Position yourself in front of, or to the side of the person.Wait patiently until the person see you and stops working |
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Term
| Which personal item must be removed and safely stored before working in the FCC HVAC Laboratory? |
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Definition
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Term
| If heat stress or heat stroke is suspected: |
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Definition
| Drink Water, Find a cool place & rest, Call 911 |
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Term
| Signs of heat stroke or heat stress include: |
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Definition
| Lack of sweating, nausea, vomiting, confusion, headache |
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Term
| Students are allowed to work in the FCC HVAC Laboratory: |
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Definition
| When a safely helmet is worn, an instructor or instructional assistant is present, lab has been declared in-session by instructor |
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Term
| At a minimum, which kind of shoe is required in the FCC HVAC Laboratory? |
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Definition
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Term
| What is the first step when lifting an object? |
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Definition
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Term
| Soldering is allowed on a refrigeration system under pressure when: |
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Definition
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Term
| When must a safety helmet be worn in the FCC HVAC Laboratory? |
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Definition
| Anytime lab is in session, in all areas of the lab, inside & outside |
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Term
| When lifting, what should be avoided? |
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Definition
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Term
| Loose, untucked clothing is allowed in the FCC HVAC Laboratory: |
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Definition
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Term
| During the summer months, refrigerant cylinders stored in a service truck can become very hot. If a cylinder of refrigerant 22, containing in both liquid and vapor (saturated) reaches a temperature of 120 degrees F., the pressure inside the cylinder will be: |
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Definition
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Term
A fusible plug or patch is a metal fitting with a hole drilled through it. The hole, which excessively
high pressure could escape, is filled with: |
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Definition
| A material similar to soldier, with a low melting point |
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Term
| Brazing is allowed on a refrigeration system under pressure when: |
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Definition
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Term
| Which safety items should be worn when transferring refrigerant from a cylinder to a system or other approved container? |
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Definition
| Eye protection and gloves |
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Term
| When installing or removing refrigerant gauges, it is especially important to wear: |
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Definition
| Eye protection and gloves |
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Term
| In electrical circuits, the ground wire should be: |
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Definition
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Term
| At a minimum, eye protection worn in the FCC HVAC Laboratory must have which safety rating? |
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Definition
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Term
| You should protect yourself from exposure to the sun by: |
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Definition
| Wearing a hat, using sunscreen, wearing sunglasses |
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Term
| Which type of refrigerant cylinder may a technician fill with refrigerant to rated capacity: |
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Definition
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Term
| If you pressure test a system for leaks using oxygen, you may: |
|
Definition
| cause a violent (potentially deadly) explosion |
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Term
| In the case of electrical shock, how many electrical amps are particularly lethal to a person? |
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Definition
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Term
| In the FCC HVAC Laboratory, fire extinguishers may be found: |
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Definition
| Next to the East Door, West door, & West rollup door |
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Term
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Definition
| Material Safety Data Sheet |
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Term
| In the FCC HVAC Laboratory, MSDS information may found in the yellow binder on the: |
|
Definition
| South wall, adjacent to the instructor's office |
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Term
| When experiencing an eye injury, what is the 1st treatment step? |
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Definition
| Flush the eye with water at the eye wash station, but do not rub the eye |
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Term
| When using a fire extinguisher: |
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Definition
| Pull the pin, aim low, squeeze, sweep |
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Term
| For chemical injury, a person should always follow: |
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Definition
| First aid measures listed in the MSDS for the chemical in question |
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Term
| When in doubt about an injury: |
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Definition
|
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Term
| Which kills people, voltage pressure or current flow? |
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Definition
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|
Term
| When working in the FCC Laboratory, a student should: |
|
Definition
| Maintain constant awareness of surroundings |
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Term
| On a stepladder, a person should never step: |
|
Definition
| on the very top, or on the top step of the latter |
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Term
|
Definition
| Must be firmly tied-off to the building |
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Term
| Brazing without gloves will result in: |
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Definition
|
|
Term
|
Definition
| Ground fault circuit interrupter |
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Term
| The GFCI circuit measure the difference: |
|
Definition
| In current between L1 - Neutral |
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Term
| When ground fault is detected, how fast does a GFCI circuit react? |
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Definition
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Term
| GFCI protection is required by Cal-Osha when: |
|
Definition
| The receptacles are used by workers, the receptacles are not part of the permanent structure |
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Term
| An electrical enclosure has been left open. What should be your next step? |
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Definition
| Report the missing cover to the customer in writing, and/or Install the cover if you feel safe doing so |
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Term
| An HVAC unit is running in the FCC HVAC Laboratory and you need to disconnect power to the unit. What is your first step? |
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Definition
| Turn off unit at the thermostat, and wait for unit to turn itself off |
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Term
| What should a mental safety checklist include? |
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Definition
| Where are my hands, am I on solid footing, am I positioned away from components that could harm me when energized or engaged |
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Term
| When operating in the FCC HVAC Laboratory, when must a gas-fired furnace be ventilated with the laboratory ventilation exhaust system? |
|
Definition
| anytime a furnace is running, unless a permanent venting system has been installed |
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Term
| When HVAC equipment is operated without its access paneling, what can be the consequence? |
|
Definition
| false measurements, unsafe system operation, loose panels can be a trip hazard |
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Term
| When a technician is done brazing, what should be included in a mental safety check list? |
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Definition
| Have the oxygen and acetylene cylinders turned off, acetylene first, are oxy-acetylene hoses securely stored and wrapped neatly around the cylinder set, is the work area cold and smoke free, is the oxygen-acetylene stored in an up-right postion |
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Term
| When a technician is setting-up to braze, what should be included in a mental safety check list? |
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Definition
| Are you standing to the side of the oxygen and acetylene regulators, are oxy-acetylene hoses in good physical condition, has oxygen been opened 1 turn, and acetylene 1/2 turn, are the oxygen-acetylene tanks secure |
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Term
| When is use of a cell phone appropriate in the FCC HVAC Laboratory? |
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Definition
| When lab is not in session |
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Term
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Definition
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