Other Skilled Trades Sheet Metal and HVAC

Question 1

What does HVAC stand for?

Accepted Answer

Heating, Ventilation, and Air Conditioning

Answer

HVAC stands for Heating, Ventilation, and Air Conditioning — the three core functions of building climate control systems.

Question 2

What is the standard unit used to express the cooling capacity of an air conditioner in the US?

Accepted Answer

BTU per hour (BTU/h)

Answer

HVAC cooling capacity in the US is expressed in BTU per hour (BTU/h), where one 'ton' of cooling equals 12,000 BTU/h.

Question 3

What type of duct system uses rectangular or square ducts fabricated from sheet metal?

Accepted Answer

Rectangular duct (flat oval) system

Answer

Rectangular duct systems use flat sheet metal panels formed into square or rectangular cross-sections, commonly used for main supply and return trunks in commercial HVAC.

Question 4

What does SEER stand for in reference to air conditioning efficiency?

Accepted Answer

Seasonal Energy Efficiency Ratio

Answer

SEER (Seasonal Energy Efficiency Ratio) measures a cooling system's efficiency over a full cooling season by dividing total cooling output by total electrical energy input.

Question 5

What is the purpose of a manual J load calculation in HVAC design?

Accepted Answer

To determine the correct heating and cooling equipment size for a building

Answer

Manual J is the ACCA standard calculation method used to determine the exact heating and cooling loads for a building, ensuring properly sized HVAC equipment is selected.

Other Skilled Trades Practice Test

Other Skilled Trades Practice Test

Other Skilled Trades Sheet Metal and HVAC