GTAW is most commonly performed using _____
a. constant voltage
b. alternating current with low frequency
c. direct current electrode positive (DCEP)
d. direct current electrode negative (DCEN)
d
You might also like to view...
The ____ is designed to measure the running load current of the motor, and open the contactor unit to stop the motor in the event the motor draws current levels that could cause damage from excessive heat.
a. overload unit b. motor starter c. magnetic starter d. manual starter
Types of humidifiers used with commercial air handling equipment include
A) bypass, atomizing, and wetted media B) steam grid, steam pan, and direct water spray C) direct expansion, chilled water, and steam D) direct expansion, steam, and hot water
Which communication technology should you use if you need to connect three offices which are all within 3 miles of each other at speeds up to 75 Mbps using antennas?
A. T1 B. DSL C. WiMax D. ISDN
Hazardous materials include all of the following EXCEPT _________________
A) Engine oil B) Asbestos C) Water D) Brake cleaner