Question 1

Machining

Accepted Answer

The process of cutting, drilling, or milling metal components to achieve the desired shape or dimensions.

Question 2

Welding symbols

Accepted Answer

Visual indications on a blueprint that specify the type of weld, its size, and other pertinent information.

Question 3

Hot rolling process

Accepted Answer

The process of rolling the steel at a high temperature when the steel is above its recrystallization temperature.

Question 4

Cold rolling process

Accepted Answer

The process of rolling the steel below its recrystallization temperature which increases the strength and hardness.

Question 5

Bending allowance

Accepted Answer

The extra material required for bending a component without causing any deformation.

Question 6

Shearing

Accepted Answer

A metal fabrication process which cuts straight lines on flat metal stock.

Question 7

Press brake forming

Accepted Answer

A process that uses a CNC-controlled press brake to bend and shape metal.

Question 8

Flame cutting

Accepted Answer

A process that uses an oxy-fuel torch to cut through thick sections of metal.

Question 9

Plasma cutting

Accepted Answer

A process that cuts through electrically conductive materials by means of an accelerated jet of hot plasma.

Question 10

Tack welding

Accepted Answer

Small, temporary welds used to hold parts in place while more extensive, final welds are made.

Question 11

MIG welding

Accepted Answer

A type of welding that uses an electric arc and a wire electrode to melt and join pieces.

Question 12

TIG welding

Accepted Answer

A type of welding that uses a non-consumable tungsten electrode and an inert shielding gas.

Question 13

Stick welding (SMAW)

Accepted Answer

A manual arc welding process that uses a consumable electrode covered with a flux to lay the weld.

Question 14

Welding defects

Accepted Answer

Imperfections that compromise the usability or safety of a weldment, such as cracks, porosity, and undercut.

Question 15

Weld inspection techniques

Accepted Answer

Methods used to assess the quality of welds, like visual inspection, ultrasonic testing, or radiographic testing.

Question 16

Annealing

Accepted Answer

A heat treatment process that alters the physical and sometimes chemical properties of a material to increase its ductility and reduce its hardness.

Question 17

Quenching

Accepted Answer

A rapid cooling process used after metal has been heated and which hardens the metal.

Question 18

Tempering

Accepted Answer

A process of heat treating, which is used to increase the toughness of iron-based alloys.

Question 19

Structural steel

Accepted Answer

A category of steel used for making construction materials in a variety of shapes.

Question 20

Stainless steel

Accepted Answer

A group of steel grades which have superior corrosion resistance compared to other steels.

Question 21

Tool steel

Accepted Answer

A type of steel with distinct properties such as hardness, resistance to abrasion, and ability to withstand high temperatures.

Question 22

Carbon steel

Accepted Answer

A steel with carbon content up to 2.1% by weight.

Question 23

Layout and fabrication tools

Accepted Answer

Instruments used in the layout and fabrication process, such as scribers, squares, protractors, and dividers.

Question 24

Safety standards and PPE

Accepted Answer

Guidelines for maintaining safety in the workplace and the personal protective equipment (PPE) that should be used.

Question 25

Heat affected zone (HAZ)

Accepted Answer

The portion of the base material that has not been melted during welding, but whose mechanical properties or microstructure have been altered by the heat of welding.

Question 26

Weld penetration

Accepted Answer

The depth that the weld metal extends into the base metal from the surface melted during welding.

Question 27

Backstep welding

Accepted Answer

A technique where the general progression of welding may be left to right, but each bead segment is deposited from right to left.

Question 28

Preheating

Accepted Answer

The application of heat to the base metal immediately before welding, often used to slow the cooling rate and prevent weld cracking.

Question 29

Post weld heat treatment (PWHT)

Accepted Answer

The process of reheating a weldment immediately after welding, used to reduce residual stresses and increase the toughness of the weld.

Question 30

Metallurgy

Accepted Answer

The science of extracting metals from their ores, refining them, and preparing them for use.

Question 31

Distortion control

Accepted Answer

Techniques applied to prevent deformation of the weldment due to thermal expansion and contraction.

Question 32

Fillet weld

Accepted Answer

A triangular weld that joins two surfaces at right angles to each other in a lap joint, T-joint, or corner joint.

Question 33

Groove weld

Accepted Answer

A type of weld made in the groove between two members to be joined.

Question 34

FCAW (Flux-cored arc welding)

Accepted Answer

A semi-automatic or automatic arc welding process that uses a continuously fed consumable electrode containing a flux.

Question 35

Gas metal arc welding (GMAW)

Accepted Answer

Also known as MIG welding, a welding method in which an electric arc forms between a consumable wire electrode and the workpiece metal(s).

Question 36

Submerged arc welding (SAW)

Accepted Answer

An automatic process that uses a continuously fed consumable electrode and a blanket of fusible flux.

Question 37

Gas tungsten arc welding (GTAW)

Accepted Answer

Also known as TIG welding, a welding method in which an electric arc is formed between a non-consumable tungsten electrode and the workpiece.

Question 38

Edge preparation

Accepted Answer

The process of forming the edge of the base metal into a certain shape prior to welding, such as a U-shape, V-shape, or a J-shape.

Question 39

Slag inclusion

Accepted Answer

Non-metallic solid material trapped in weld metal or between weld metal and base metal.

Question 40

Undercutting

Accepted Answer

An undesired condition in which the cross-sectional area of the base metal is reduced due to the action of the arc or flame.

Question 41

Porosity

Accepted Answer

The presence of cavities in the weld metal caused due to the entrapment of gas.

Question 42

Welding power supply

Accepted Answer

An equipment providing electrical energy for welding.

Question 43

Welding current (AC/DC)

Accepted Answer

Alternating current (AC) or direct current (DC) used for different welding processes.

Question 44

Welding position (1G, 2G, 3G, 4G)

Accepted Answer

The type of position of the weld, such as flat (1G), horizontal (2G), vertical (3G), and overhead (4G).

Question 45

Notching

Accepted Answer

The process of cutting out a portion of a material or a workpiece, often used in preparation for a welding or a bending process.

Question 46

Blueprint reading

Accepted Answer

Ability to understand and interpret technical drawings and plans.

Question 47

Quality control

Accepted Answer

A process by which entities review the quality of all factors involved in production.

Question 48

Plate lamination defect

Accepted Answer

A manufacturing process defect in steel which occurs when mill scale is rolled into the steel.

Question 49

Dye penetrant inspection (DPI)

Accepted Answer

Also called liquid penetrant inspection (LPI) or penetrant testing (PT), a widely applied and low-cost inspection method to check surface-breaking defects in non-porous materials.

Question 50

Riveting

Accepted Answer

A permanent mechanical fastener that consists of a smooth cylindrical shaft with a head.

Question 51

Fasteners (bolts, screws, nuts, washers)

Accepted Answer

Devices that mechanically join or secure two or more objects together.

Question 52

Hydraulic press

Accepted Answer

A machine press using a hydraulic cylinder to generate a compressive force, used in metalworking operations.

Question 53

Roll forming

Accepted Answer

A continuous bending operation in which a long strip of metal is passed through consecutive sets of rolls, each performing only an incremental part of the bend.

Question 54

Sandblasting

Accepted Answer

A method to clean or etch a surface by bombarding it with abrasive particles driven by a jet of compressed air.

Question 55

Metal inert gas (MIG) vs. tungsten inert gas (TIG) welding

Accepted Answer

Comparison of two common welding techniques, MIG uses a wire feeding gun while TIG uses long welding rods and slowly feeds them into the weld puddle.

Question 56

Metal fatigue

Accepted Answer

Weakening of a material caused by repeatedly applied loads, often leading to failure in the material.

Question 57

Galvanized steel

Accepted Answer

Steel that has been coated in a layer of zinc to help the metal resist corrosion.

Question 58

Tensile strength

Accepted Answer

The resistance of a material to breaking under tension.

Question 59

Yield strength

Accepted Answer

The point at which a material will deform permanently (plastically) without returning to its original shape when the applied stress is removed.

Red Seal Exam Flashcards: Metal Fabricator (Fitter) Advanced Concepts