Millwright Level 1: Basic Layout (15104-
06)- Questions & Answers
Combination Set Correct Ans-Can be used as a combination square to lay out 45-degree
angles, 90-degree angles, parallel lines and to measure heights. It can be used as a protractor to
measure angle to within 1-degree accuracy or it can be used to locate centers of round or square
bars and serve as a steel rule, level, or marking gauge.
Protractors Correct Ans-Made of plastic or light-gauge metal, used to lay out and measure
angles.
Dividers Correct Ans-Made of hardened steel points attached to two legs, used to transfer
measurements, compare distances, and to scribe circles and arcs.
Trammel Points Correct Ans-Used to scribe large circles and arcs. The point on a trammel
can be replaced with a marking tool such as a pen.
Prick Punches Correct Ans-Made of steel and is about 4 to 6 inches long, used with small
hammer to mark centers and to mark centers and to make small indentations along layout lines.
The end of the punch to a point with an angle of about 60-degrees.
Center Punches Correct Ans-Similar to a prick punch, except that its point is more blunt and
round at a 90-degree angle. Used to enlarge center marks made with a prick punch. This is done
so that a drill can start easily when drilling holes.
06)- Questions & Answers
Combination Set Correct Ans-Can be used as a combination square to lay out 45-degree
angles, 90-degree angles, parallel lines and to measure heights. It can be used as a protractor to
measure angle to within 1-degree accuracy or it can be used to locate centers of round or square
bars and serve as a steel rule, level, or marking gauge.
Protractors Correct Ans-Made of plastic or light-gauge metal, used to lay out and measure
angles.
Dividers Correct Ans-Made of hardened steel points attached to two legs, used to transfer
measurements, compare distances, and to scribe circles and arcs.
Trammel Points Correct Ans-Used to scribe large circles and arcs. The point on a trammel
can be replaced with a marking tool such as a pen.
Prick Punches Correct Ans-Made of steel and is about 4 to 6 inches long, used with small
hammer to mark centers and to mark centers and to make small indentations along layout lines.
The end of the punch to a point with an angle of about 60-degrees.
Center Punches Correct Ans-Similar to a prick punch, except that its point is more blunt and
round at a 90-degree angle. Used to enlarge center marks made with a prick punch. This is done
so that a drill can start easily when drilling holes.
