EPA 609 TECHNICIAN CERTIFICATION EXAM |
ACTUAL EXAM QUESTIONS AND CORRECT
ANSWERS | GRADED A+ | VERIFIED ANSWERS |
LATEST VERSION (JUST RELEASED)
Technicians who repair or service HFC-134a MVACs must be trained and
certified by an EPA-approved organization ------CORRECT ANSWER--------
-------True
Moisture content in recycled R-134a (HFC-134a) that has been directly
removed from and intended to be returned to a mobile air-conditioning
system cannot exceed _______ by weight ------CORRECT ANSWER--------
-------50 PPM
R-134a disposable refrigerant cylinder is ________ color coded: ------
CORRECT ANSWER---------------light blue
Disposable cylinders are manufactured to specifications established by: ----
--CORRECT ANSWER---------------DOT
Which of the following refrigerant has a molecular formula is C2H4F2: ------
CORRECT ANSWER---------------R-152a
The AHRI standard now contains the new specification to limit unsaturated
impurities in HFC-134a to a maximum level of ________ ------CORRECT
ANSWER---------------40 ppm
,Refrigerants may be mixed in recovery cylinders: ------CORRECT
ANSWER---------------False
After reaching the required recovery vacuum on an system, if the system
pressure _____, indicating that there is either refrigerant in liquid form,
refrigerant trapped in the oil, or a leak in the system. ------CORRECT
ANSWER---------------rises
Any person who sells or distributes any Class I or Class II substance in a
container of less than _________ of such refrigerant must verify that the
purchaser is Properly Trained and 609 Certified and must retain a record. --
----CORRECT ANSWER---------------20 pounds
EPA does require a leak to be repaired prior to recharging a motor vehicle
air conditioning system ------CORRECT ANSWER---------------False
Which of the following are the causes of Ozone Layer Depletion: ------
CORRECT ANSWER---------------Hydrochlorofluorocarbons, Volcanic
eruptions, and Chlorofluorocarbons
______ has developed standards that apply to the recovery and recycling
of motor vehicle refrigerant as well as service guidelines for MVAC
technicians. ------CORRECT ANSWER---------------SAE
Ozone layer extends at Earth's altitude between _____ ------CORRECT
ANSWER---------------7 and 30 miles
,HFC-134a contribute to which of the following: ------CORRECT ANSWER---
------------Global Warming
The empty refillable refrigerant tank must be evacuated to a minimum
vacuum of ______ of mercury ------CORRECT ANSWER---------------27
inches
Refrigerants that contain chlorine but not hydrogen are stable ------
CORRECT ANSWER---------------True
The internal pressure of a refrigerant cylinder with one ounce of liquid
refrigerant is _______ full cylinder: ------CORRECT ANSWER---------------
exactly the same as
R-152a refrigerant chemical compound does not composed of which of the
following: ------CORRECT ANSWER---------------Chlorine
The _________ has developed a standard for recovery and
recovery/recycling machines that are to be used with flammable
refrigerants. ------CORRECT ANSWER---------------SAE
Which of the following are most stable in lower atmospheres of Earth: ------
CORRECT ANSWER---------------CFCs
, Under these safe disposal requirements as per the EPA, the final person in
the disposal chain, is responsible for ensuring that the refrigerant is
recovered from the equipment before the final disposal of the equipment: --
----CORRECT ANSWER---------------True
The U.S. EPA does characterize used refrigerants as hazardous waste -----
-CORRECT ANSWER---------------False
The CO2 system would be acceptable to the EPA under the condition that
MVAC system was designed to avoid concentrations in the passenger
cabin that are above _____ for more than 15 minutes ------CORRECT
ANSWER---------------3%
Refrigerant containers which contain refrigerant more than 20 pounds can
be sold to a person who holds _______ ------CORRECT ANSWER------------
---either Section 608 or Section 609 certification
Since _______, it has been illegal to vent substitutes for
chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs)
refrigerants: ------CORRECT ANSWER---------------November 15, 1995
Which of the following is the example of HFCs: ------CORRECT ANSWER--
-------------R-134a
Which of the following are associated with risk of depletion of ozone layer:
(Multiple Answer Question) ------CORRECT ANSWER---------------Damage
to agriculture and wildlife, increase in skin cancers, increased global
warming, and damage to aquatic organisms
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