HVAC D2 License test with 100%
complete solutions to pass
Cascade System - correct answer ✔✔A System with 2 or more refrigerant systems
O2 - correct answer ✔✔OSHA forbids what to be used as a test gas?
Oil separator should be installed where? - correct answer ✔✔Between compressor and
condenser
Max acetylene pressure while brazing - correct answer ✔✔15psig
1 horsepower - correct answer ✔✔.75kwa
Oil #2 + Oil #6 flashpoint - correct answer ✔✔100° + 140°
White smoke - correct answer ✔✔Gas burner is too lean
Fire damper activation temp - correct answer ✔✔160°F
cooper embedded joints - correct answer ✔✔Must be brazzed
Holes in joist - correct answer ✔✔Must not be in within 2" from top or bottom of wood
Sensible heat - correct answer ✔✔Dry bulb
, Residential grate opening - correct answer ✔✔1/4"
Vibration connectors - correct answer ✔✔Prevent pipes from cracking
Accumulator - correct answer ✔✔Prevents liquid refrigerant from entering compressor
Weak valves - correct answer ✔✔Compressor can't pull a deep vaccum
Open type compressor - correct answer ✔✔Has crankshaft seal
Liquid receiver location - correct answer ✔✔Located after condenser in liquid line
Liquid receiver capacity - correct answer ✔✔Should be able to hold 20% more than refrigerant
charge
Gypsum duct - correct answer ✔✔Should not exceed 125°F
Highest voltage for low voltage circuit - correct answer ✔✔30V
Residential gas pressure - correct answer ✔✔4" W.C.
Hot surface igniter material - correct answer ✔✔Uses product called silicon carbide
Starved evaporated means - correct answer ✔✔There is excess superheat
complete solutions to pass
Cascade System - correct answer ✔✔A System with 2 or more refrigerant systems
O2 - correct answer ✔✔OSHA forbids what to be used as a test gas?
Oil separator should be installed where? - correct answer ✔✔Between compressor and
condenser
Max acetylene pressure while brazing - correct answer ✔✔15psig
1 horsepower - correct answer ✔✔.75kwa
Oil #2 + Oil #6 flashpoint - correct answer ✔✔100° + 140°
White smoke - correct answer ✔✔Gas burner is too lean
Fire damper activation temp - correct answer ✔✔160°F
cooper embedded joints - correct answer ✔✔Must be brazzed
Holes in joist - correct answer ✔✔Must not be in within 2" from top or bottom of wood
Sensible heat - correct answer ✔✔Dry bulb
, Residential grate opening - correct answer ✔✔1/4"
Vibration connectors - correct answer ✔✔Prevent pipes from cracking
Accumulator - correct answer ✔✔Prevents liquid refrigerant from entering compressor
Weak valves - correct answer ✔✔Compressor can't pull a deep vaccum
Open type compressor - correct answer ✔✔Has crankshaft seal
Liquid receiver location - correct answer ✔✔Located after condenser in liquid line
Liquid receiver capacity - correct answer ✔✔Should be able to hold 20% more than refrigerant
charge
Gypsum duct - correct answer ✔✔Should not exceed 125°F
Highest voltage for low voltage circuit - correct answer ✔✔30V
Residential gas pressure - correct answer ✔✔4" W.C.
Hot surface igniter material - correct answer ✔✔Uses product called silicon carbide
Starved evaporated means - correct answer ✔✔There is excess superheat
