Planning and Estimating

Questions

What is "latent heat" in the context of air conditioning?
The California Mechanical Code requires HVAC systems to be sized based on which …
A contractor discovers that the actual job cost exceeds the original estimate by…
A cooling load calculation must account for heat gain from which of the followin…
What is the purpose of a Manual N calculation?
Manual S is used in HVAC system design to:
What is the design heating load used for in HVAC system sizing?
A contractor is estimating a commercial HVAC job. The equipment cost is $42,000 …
California's Title 24 Building Energy Efficiency Standards primarily affect HVAC…
Which ACCA manual is used for residential load calculations?
What is the primary purpose of a psychrometric chart in HVAC system design?
When estimating a duct system, the equivalent length method accounts for:
A change order in HVAC contracting is used when:
A takeoff sheet in HVAC estimating is used to:
The grains of moisture per pound of dry air is a measure of:
When sizing a residential gas furnace, the output BTU/h capacity should be:
The enthalpy of air at a given condition represents:
Manual D is the ACCA reference used for designing which component of an HVAC sys…
What is the purpose of a heat gain calculation for an existing building?
CFM (cubic feet per minute) in duct design is primarily determined by:
What is the design dry-bulb temperature used in load calculations?
In a duct system, a plenum is:
What does the term "sensible heat ratio" (SHR) represent in HVAC design?
In duct design, the "available static pressure" for the duct system is calculate…
The ASHRAE Handbook — Fundamentals is primarily referenced by HVAC contractors f…
An air conditioner has 2,400 watts of electrical input and 24,000 BTU/h of cooli…
A heat pump has a COP of 3.5 in heating mode. This means:
California Title 24 energy standards require HVAC systems to meet minimum effici…
Which factor most significantly increases the cooling load in a building with la…