14 terms

Sections 1 and 2 - B

sections 1 and 2 -b
STUDY
PLAY
3 phase motors must operate within _____ current on each leg of the 3 phase
2%
manometers are used to measure low __________
pressures
a draft gauge is used to measure __________
draft
hygrometers are used to measure _______
humidity
psychrometers are used to measure ________
WB and DB
a refrigerant cylinder is never to be heated above ______
125 degrees
recovery cylinders are not be be filled more than _______ up to a temperature of 130 degrees
80%
recovery cylinders are not to be filled more than ________ above 130 degrees
60%
nitrogen is a high pressure gas at about _________
2000 psi
a stack thermometer is used to measure the _______ temperature
stack
when working around chemicals one should protect their
eyes and hands
to make sure the power is off to a piece of equipment it is best to ______ the circuit for voltage
test
due to the danger of acetylene, one should never open the acetylene cylinder more than 1 1/4 turn and let the _______ on the cylinder valve
wrench
poor IAQ may be due to an _________ system
HVAC