F-Gas – CAT IV, Leak Checking

Which one of the following refrigerant hazards can make an affected person feel ‘high’?

What is the standard unit of Mass?

Specific enthalpy can also be described as heat content per unit _______

Which of the following would make a system less efficient?

Specific enthalpy can also be described as heat content per unit

What is the primary objective of Regulation (EC) No 517/2014?

Under F-Gas Regulation (EEC) No 517/2014 maintaining equipment records is the responsibility of the ________

Which of the following would lead to compressor failure?

Which of the following condenser cleaning methods is most likely to cause refrigerant leakage from a finned air-cooled condenser?

Which of the following refrigerants is not flammable?

A kilowatt is also known as _______

Which of the following contributes to direct global warming?

Which of the following would make a system less efficient?

What is the minimum F Gas Category qualification required for recovering refrigerant from a small commercial system with a 2.5kg charge?

Under F-Gas Regulations equipment records must include ________

The Ozone Depletion Potential of R407C is _______

What is the likely result of frequent cleaning with a proprietary acid-based cleaning agent?

What is the ISO base unit for temperature:?

What is the ISO derived unit for pressure?

What is the ISO unit for mass?

What is the ISO derived unit for density?

What is the ISO unit for energy?

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:

Increased global warming is

Inefficient use of refrigeration and air conditioning systems will increase

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

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

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

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

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

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

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

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

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

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

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

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

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

Electronic leak detectors should be calibrated for the required sensitivity