**Title:** CM 2112 Welding Final Exam Questions with Correct Answers 2026/2027 – Updated Study Guide for Instant Download **Description:** This document contains CM 2112 final exam questions with the correct answers focused on welding concepts and termin

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CM 2112 FINAL EXAM QUESTIONS WITH THE CORRECT ANSWERS 2026/2027
SECTION 1: WELDING

Semiautomatic Welding Welding where the equipment controls only the
electrode wire feeding. The welding gun movement
is controlled by hand.
Select one:
a. Gas Welding
b. Semiautomatic Welding
c. Hybrid laser-arc welding
d.Spot Welding

Amperage (amps) The measurement of the amount of electricity flowing
past a given point in a conductor per second (i.e.,
current).
Select one:
a. Voltage
b. Amperage (amps)
c. Pulsing

d. Ground Connection

Arc-Drive Automatically enhances Stick welding, especially on
pipe, by focusing the arc and preventing the
electrode from going out.
Select one:
a. Arc
b. Active Arc Stabilizer
c. Arc-Drive
d. Adaptive Hot Start




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Gas Tungsten Arc Welding (GTAW) An arc welding process where the arc is between a
tungsten electrode (non-
consumable) and the weld pool. The process is used
with an externally supplied shielding gas.
Select one:
a. Pulsed TIG (TIG-P)
b. Plasma Arc Welding (PAW)
c. Air Carbon Arc Cutting (CAC-A)
d. Gas Tungsten Arc Welding (GTAW)

Workpiece Lead The conductor cable or electrical conductor between the
arc welding machine and the work.
Select one:
a. Tungsten
b. Power Factor Correction
c. Light Amplification by Stimulated Emission of Radiation
(Laser)
d. Workpiece Lead

Tungsten Rare metallic element with extremely high melting point
(3410° Celsius). Used in manufacturing TIG electrodes.
Select one:
a. Constant Voltage (CV), Constant Potential (CP)
Welding Machine
b. Hot Start
c. Tungsten
d.Inverter


Flexible Automation Automated, robotically controlled welding system
forterm-245 complex shapes and applications
where welding paths require torch-angle
manipulat
ion.
Select
one:
a. Hybrid laser-arc welding
b. Semiautomatic Welding
c. Laser Beam Welding
d.Flexible Automation

Laser Cutting A technology that is used for industrial manufacturing
applications and uses a laser to cut materials.
Select one:
a. TIG Welding
b. Gas Tungsten Arc Welding (GTAW)
c. Laser Cutting
d.Flux-Cored Arc Welding (FCAW)

Electro-Slag Welding A welding process that is used for welding heavy
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structure components.
Select one:
a. Electro-Slag Welding
b. Plasma-Arc Cutting (PAC)
c. Laser Beam Cutting
d. Thermite Welding

Gas Cutting A process that uses gases and oxygen to weld and cut
metals, respectively.
Select one:
a. Gas Cutting
b. Resistance Spot Welding (RSW)
c. Automatic
d.Electro-Slag Welding


Auto-Crater Allows a TIG (Tungsten Inert Gas) arc to crater-out,
allowing time for the addition of filler, without the loss
of shielding gas. Eliminates the need for a remote
control at arc end.
Select one:
a. Inverter
b. Auto-Crater
c. Pulsed-Spray Transfer
d.Hot Start

Automatic mode When the controller generates an output signal based
on the relationship of process variable (PV) to the
setpoint (SP).
Select one:
a. Manual mode
b. Automatic mode
c. Lower- and Upper-range values (LRV and URV)
d.Manipulated Variable (MV)

Tensile Strength The maximum stress a material subjected to a
stretching load can withstand without tearing.
Select one:
a. Weld Transfer
b. Thermal Conductivity
c. Tensile Strength
d.Backing Gas

Flux-Cored Arc Welding (FCAW) An arc welding process that produces coalescence of
metals by means of tubular electrode. Shielding
gas may or may not be used.
Select one:
a. Fillet welding

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