PLTW Unit 2 Test Questions and
Answers
Measurement - Answer-The process of using dimensions, quantity, or capacity by
comparison with a standard in order to mark off, apportion, lay out, or establish
dimensions.
Multi-View Drawing - Answer-A drawing which contains views of an object projected
onto two or more orthographic planes. Also known as Orthographic View Drawing.
Object Line - Answer-A heavy solid line used on a drawing to represent the outline of an
object.
Oblique Sketch - Answer-A form of pictorial in which an object is represented as true
width and height, but the depth can be any size and drawn at any angle.
Orthographic Projection - Answer-A method of representing three-dimensional objects
on a plane having only length and breadth. Also referred to as Right Angle Projection.
Perspective Sketch - Answer-A form of pictorial sketch in which vanishing points are
used to provide the depth and distortion that is seen with the human eye.
Pictorial Sketch - Answer-A sketch that shows an object's height, width, and depth in a
single view.
Line - Answer-1. A long thin mark on a surface. 2. A continuous extent of length, straight
or curved, without breadth or thickness; the trace of a moving point. 3. Long, narrow
mark or band.
Line Conventions - Answer-Standardization of lines used on technical drawings by line
weight and style.
Line Weight - Answer-Also called line width. The thickness of a line, characterized as
thick or thin.
Long-Break Line - Answer-A line which indicates that a very long objects with uniform
detail is drawn foreshortened.
Manufacture - Answer-To make something, especially on a large scale using
machinery.
, Sketch - Answer-A rough representation of the main features of an object or scene and
often made as a preliminary study.
Plane - Answer-A flat surface on which a straight line joining any two points would
wholly lie.
Point - Answer-A location in space.
Profile - Answer-An outline of an object when viewed from one side.
Projection Line - Answer-An imaginary line that is used to locate or project the corners,
edges, and features of a three-dimensional object onto an imaginary two-dimensional
surface.
Projection Plane - Answer-An imaginary surface between the object and the observer
on which the view of the object is projected and drawn.
Proportion - Answer-1. The relationship of one thing to another in size, amount, etc. 2.
Size or weight relationships among structures or among elements in a single structure.
Scale - Answer-1. A straight-edged strip of rigid material marked at regular intervals that
is used to measure distances. 2. A proportion between two sets of dimensions used to
develop accurate, larger or smaller prototypes, or models.
Section Lines - Answer-Thin lines used in a section view to indicate where the cutting
plane line has cut through material.
Shading - Answer-The representation of light and shade on a sketch or map.
Short-Break Line - Answer-Line which shows where part is broken to reveal detail
behind the part or to shorten a long continuous part.
Shape - Answer-A two-dimensional contour that characterizes an object or area, in
contrast to three-dimensional form.
Cabinet Pictorial - Answer-Oblique pictorial where depth is represented as half scale
compared to the height and width scale.
Cavalier Pictorial - Answer-Oblique pictorial where height, width, and depth are
represented at full scale.
Center Line - Answer-A line which defines the center of arcs, circles, or symmetrical
parts.
Construction Line - Answer-Lightly drawn lines to guide drawing other lines and shapes.
Answers
Measurement - Answer-The process of using dimensions, quantity, or capacity by
comparison with a standard in order to mark off, apportion, lay out, or establish
dimensions.
Multi-View Drawing - Answer-A drawing which contains views of an object projected
onto two or more orthographic planes. Also known as Orthographic View Drawing.
Object Line - Answer-A heavy solid line used on a drawing to represent the outline of an
object.
Oblique Sketch - Answer-A form of pictorial in which an object is represented as true
width and height, but the depth can be any size and drawn at any angle.
Orthographic Projection - Answer-A method of representing three-dimensional objects
on a plane having only length and breadth. Also referred to as Right Angle Projection.
Perspective Sketch - Answer-A form of pictorial sketch in which vanishing points are
used to provide the depth and distortion that is seen with the human eye.
Pictorial Sketch - Answer-A sketch that shows an object's height, width, and depth in a
single view.
Line - Answer-1. A long thin mark on a surface. 2. A continuous extent of length, straight
or curved, without breadth or thickness; the trace of a moving point. 3. Long, narrow
mark or band.
Line Conventions - Answer-Standardization of lines used on technical drawings by line
weight and style.
Line Weight - Answer-Also called line width. The thickness of a line, characterized as
thick or thin.
Long-Break Line - Answer-A line which indicates that a very long objects with uniform
detail is drawn foreshortened.
Manufacture - Answer-To make something, especially on a large scale using
machinery.
, Sketch - Answer-A rough representation of the main features of an object or scene and
often made as a preliminary study.
Plane - Answer-A flat surface on which a straight line joining any two points would
wholly lie.
Point - Answer-A location in space.
Profile - Answer-An outline of an object when viewed from one side.
Projection Line - Answer-An imaginary line that is used to locate or project the corners,
edges, and features of a three-dimensional object onto an imaginary two-dimensional
surface.
Projection Plane - Answer-An imaginary surface between the object and the observer
on which the view of the object is projected and drawn.
Proportion - Answer-1. The relationship of one thing to another in size, amount, etc. 2.
Size or weight relationships among structures or among elements in a single structure.
Scale - Answer-1. A straight-edged strip of rigid material marked at regular intervals that
is used to measure distances. 2. A proportion between two sets of dimensions used to
develop accurate, larger or smaller prototypes, or models.
Section Lines - Answer-Thin lines used in a section view to indicate where the cutting
plane line has cut through material.
Shading - Answer-The representation of light and shade on a sketch or map.
Short-Break Line - Answer-Line which shows where part is broken to reveal detail
behind the part or to shorten a long continuous part.
Shape - Answer-A two-dimensional contour that characterizes an object or area, in
contrast to three-dimensional form.
Cabinet Pictorial - Answer-Oblique pictorial where depth is represented as half scale
compared to the height and width scale.
Cavalier Pictorial - Answer-Oblique pictorial where height, width, and depth are
represented at full scale.
Center Line - Answer-A line which defines the center of arcs, circles, or symmetrical
parts.
Construction Line - Answer-Lightly drawn lines to guide drawing other lines and shapes.
