Title: Unit 3 Quiz
Course: HET 194 NATE Certification Preparation - Spring 2015 > Section: HET 194 NATE Certification Preparation - Spring 2015

Q: What is the advantage of using a tube cutter to cut copper pipe?
- It can cut hard or soft drawn copper.
- It leaves no metal shavings to contaminate the system.
- It produces a clean, square cut.
- All of the above
A: All of the above

Q: Spring-type benders may be used on ______.
- soft drawn copper
- hard drawn copper
- all copper pipe
- steel pipe
A: soft drawn copper

Q: A flaring tool is used to ______.
- make a mechanical joint in tubing
- measure pipe diameters
- remove burrs from piping
- separate pipe fittings
A: make a mechanical joint in tubing

Q: A swaging tool is used to ______.
- cut copper tubing
- make a mechanical joint in tubing e for fodder
- remove burrs from piping
- solder tubing without the use of couplings
A: solder tubing without the use of couplings

Q: What is one of the advantages of a glass-stem thermometer?
- It is very accurate.
- It is very durable.
- It comes with a digital read out.
- None of the above
A: It is very accurate.

Q: In discussing human comfort, the temperature most commonly referred to is
- dew point
- dry-bulb
- relative humidity
- wet-bulb
A: dry-bulb

Q: A sling psychrometer uses two glass-stem thermometers. One measures dry-bulb, and the other measures ______.
- dew point
- enthalpy
- relative humidity
- wet-bulb
A: wet-bulb

Q: A standard refrigeration manifold uses what type of element to measure pressure?
- Bellows
- Burdon tube
- Diaphragm
- Spring
A: Burdon tube

Q: What is the pressure range of a standard compound gauge on a refrigeration manifold?
- 0 to 350 psig
- 0 to 500 psig
- 30” Hg to 350 psig
- 30” Hg to 500 psig
A: 30” Hg to 350 psig

Q: What is the best tool for removing moisture and non-condensables from a system before adding refrigerant?
- Manifold gauge
- Micron analyzer
- Recovery machine
- Vacuum pump
A: Vacuum pump