F-Gas Revision (BESA)

What is the ISO derived unit for pressure?

Setting a system temperature control to a set point below design parameters will normally

A domestic refrigerator using a gas with a GWP greater than 150 will be prohibited from being placed on the market after

What is the ISO unit for mass?

The liquid level in a high pressure liquid receiver should

When a system containing, or designed to contain, fluorinated greenhouse gases is repaired, the operator must

What is the ISO derived unit for density?

In a refrigeration system ball valves, diaphragm valves and globe valves would usually be used as

Which one of these refrigerants is an A2L (mildly flammable gas)

What is the ISO unit for energy?

On a front and back seating service valve, the valve stem cap is to be considered as:

What is the British Standard that, amongst many other procedures, defines pressure testing techniques to be used on refrigeration, air conditioning and heat pump systems

If an air conditioning system was to cut in and out on the low pressure switch this could be due to

With respect to high pressure switches, which of the following is most likely to be true

A Refrigerant of the 400 series identifies it as?

The primary function of a suction line accumulator is to

The MOST likely leakage point on a commercial refrigeration system is the

In a vapour compression system the refrigerant should be superheated entering and leaving the

A common method for defrosting the outdoor heat exchanger in a variable refrigerant flow (VRV or VRF) air conditioning system in heating mode would be

What action should be taken before employing leak check methods such as leak detection fluids, electronic leak detectors, etc.?

In a vapour compression system the refrigerant should be saturated in the

The primary function of the oil separator on a multiple compressor refrigeration system is to ensure

From the relevant British Standard, what are the parameters for a pressure strength test?

The specific enthalpy of a refrigerant is the

Increased global warming is

Electronic leak detectors should be calibrated for the required sensitivity

When a refrigerant transforms from a liquid to a vapour it is said to have undergone a change of

Inefficient use of refrigeration and air conditioning systems will increase

The preferred inert gas for a purge gas whilst brazing refrigeration pipe work is

An R410A system has an evaporation pressure of 0.737 MPa(abs) and a condensing pressure of 2.344 MPa(abs). If the suction line temperature is measured at 12.7°C and the liquid line temperature is measured at 30.6°C the superheat and sub cooling are respectfully:

The current international agreement to try to minimise global warming and thereby climate change is known as the

When recovering R290 refrigerant it is important to ensure

The Nett Refrigeration Effect of 1 kg of refrigerant would be indicated on the illustrated Ph chart through the process of

The refrigerant classification MOST harmful to the environment with regard to direct global warming is

Under the Hazardous Waste Regulations 2005, what must be done before a filled (or partly) recovery cylinder can be transported?

The refrigerant travelling through the high pressure side of the refrigeration system illustrated will

Which one of these refrigerants is LEAST harmful to the environment with regard to direct global warming potential

The refrigerant travelling through the low pressure side of the refrigeration system illustrated will

On the basis that CO2 = 1, what is the GWP of refrigerant R407C

The changes in the running conditions of the system containing R410A illustrated in the two Ph diagrams (labelled February 2016 and April 2016) would indicate that over the last 3 months the system has

A R407F (GWP 1825) cooling system requires a fixed leak detection system after how much gas is charged in the system

What is the ISO base unit for temperature:?

During a direct method leak test valves should be considered

For the enforcement of the Environmental Protection, Fluorinated Greenhouse Gases Regulations 2009, authorised persons CAN exercise the power of