HVAC EPA CORE EXAM WITH GUARANTEED ACCURATE ANSWERS
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Course
HVAC EPA CORE
Institution
HVAC EPA CORE
HVAC EPA CORE EXAM
HVAC EPA CORE EXAM WITH GUARANTEED ACCURATE ANSWERS
An ozone molecule consists of - Accurate Answer3 oxygen atoms
Depletion of Ozone in the stratosphere causes: - Accurate Answer1. Crop loss
2. Increase in eye disease
3. Skin cancer
4. Reduced marine life
5. Defore...
HVAC EPA CORE EXAM HVAC EPA CORE EXAM WITH GUARANTEED ACCURATE ANSWERS
An ozone molecule consists of - Accurate Answer ✅✅3 oxygen atoms
Depletion of Ozone in the stratosphere causes: - Accurate Answer ✅✅1. Crop loss
2. Increase in eye disease
3. Skin cancer
4. Reduced marine life
5. Deforestation
6. Increased ground level ozone
When released into the atmosphere deplete the Ozone layer - Accurate Answer ✅✅CFC and HFC
What happens when a chlorine atom meets with an Ozone molecule? - Accurate Answer ✅✅it takes 1 oxygen atom away from the Ozone, forming Chlorine Monoxide
___ chlorine atom can destroy ________ ozone molecules - Accurate Answer ✅✅one chlorine; 100,000 Ozone molecules the chlorine in CFC's will neither dissolve in water nor - Accurate Answer ✅✅break down into compounds that dissolve in water
measurement of CFC's and HCFC's ability to destroy ozone is - Accurate Answer ✅✅Ozone Depletion Potential
the compound gauge (blue) and the high pressure gauge (red) are connected to the manifold - Accurate Answer✅✅the manifold is connected by hoses to access ports to measure system pressures
EPA regulations require that hoses be equipped with - Accurate Answer ✅✅low loss fittings that will minimize refrigerant loss when hoses are disconnected
(1) the metering device causes a reduction in pressure, and therefore.. - Accurate Answer ✅✅a reduction in saturation temperature
(2) Heat is absorbed in the evaporator and causes the refrigerator to - Accurate Answer ✅✅boil from liquid to vapor
(3)at the outlet of the evaporator, the refrigerant is now a - Accurate Answer ✅✅low temperature, low pressure vapor
(4) refrigerant vapor travels to the inlet of the compressor, the refrigerant vapor is then - Accurate Answer✅✅compressed and moves the condenser
(5) as the refrigerant expels heat, - Accurate Answer ✅✅the refrigerant condenses to a liquid
A system that uses a thermostatic expansion valve is usually equipped with a(n) ________, which would be located in the liquid line directly following the condenser - Accurate Answer ✅✅receiver
a system that uses a capillary tube or fixed bore metering device is usually equipped with a(n) ________,
which would be located in the suction line directly following the evaporator - Accurate Answer✅✅accumulator
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