Air Carbon Arc Cutting (CAC-A) and Gouging Questions With Complete Solutions

Air Carbon Arc Cutting (CAC-A) and Gouging Questions
With Complete Solutions


It is important to clean dross and carbon deposits from a cut
surface before welding because they can ___________.
form hard, brittle zones and porosity win the weld zone




3 multiple choice options
The connecting cable of the CAC-A torch contains
___________.
both an electrical cable and a compressed air hose




3 multiple choice options
Notches left in a base metal ______.
have a tendency to trap slag during welding
3 multiple choice options
Three types of CAC-A electrodes are copper coated for direct
current, copper coated for alternating current, and
_____________.

, plain




A primary purpose of the CAC-A process is to
___________________.
gouge weld grooves and prepare cracks for welding
3 multiple choice options
To keep molten metal from splattering nearby equipment or
personnel during CAC-A cutting activities, make sure that
flame-resistant shields or curtains are erected




3 multiple choice options
The preferred power source for a CAC-A torch is a(n) _____.
DC constant-current machine
3 multiple choice options
To ensure molten metal is blown away from the cut, the CAC-A
operator should set the air pressure regulator to __________.
the lowest pressure that will reliably do the job
3 multiple choice options