To speed the evacuation process, __________ can be added to the system. This will help boil off any liquid moisture into __________, which is much easier for the pump to remove. If this method is used, __________ should be heated to prevent moisture from vaporizing in one part of the system and condensing back to a liquid in another.
What will be an ideal response?
heat, vapor, the entire system
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What is pressure is oxygen stored at in a standard shop cylinder?
A. 250 psi B. 1000 psi C. 1500 psi D. 2200 psi
As a reminder that the regulator on a cylinder has left-handed threads, a V-notch is sometimes cut around the _____.
a. regulator b. cylinder c. threads d. nut
Technician A says that a cracked brake lining is OK as long as the thickness is more than 0.060 inch.. Technician B says that linings worn to 0.050 inch remaining should be replaced. Which technician is correct?
A) Technician A only B) Technician B only C) Both Technicians A and B D) Neither Technician A nor B
All of the following factors affect the transmitted signal quality of fiber optic communications except ________
A) absorption B) attenuation C) cross-talk D) bending