Power Engineering Chapter 21 Sketching Fundamentals

Questions and Answers

In order for a sketch to look like the object it represents, we:

Use colours throughout the sketch

Use as much detail as possible

Make the sketch in proportion (correct)

Draw the sketch to scale (correct)

Use a number of different views (correct)

Relative to sketching detail we should:

Use as little detail as possible

Use as much detail as possible (correct)

Show as many sectional views as possible

Show detail with colour wherever possible

Use at least three views of the object (correct)

One of the most important features of the first lines drawn in a sketch is that they:

Should show at least three views for projection

Be very bold

Show the main proportion of the sketch (correct)

Must all show the object outline

Are to some scale

In order to show all sides of an object being sketched the number of views required is:

Three Signup and view all the answers

Section lines used to indicate specific construction material should generally be drawn at an angle of:

45° Signup and view all the answers

A sketch section is used to show:

A necessary detail Signup and view all the answers

A protractor is used to:

Measure angles Signup and view all the answers

The three most commonly used views in drawing are the front:

Plan, side Signup and view all the answers

The vertex is otherwise known as:

The point of intersection of two lines Signup and view all the answers

Lines used to indicate distance between two points on a sketch are called:

Dimension lines Signup and view all the answers

The body responsible for standardizing symbols used to indicate materials of construction in a sketch is the:

ANSI Signup and view all the answers

A pentagon has _____ sides.

Five Signup and view all the answers

Foundation or centre lines of a sketch should be:

Made at the very beginning of the sketch Signup and view all the answers

_____ are used to indicate flow direction in a flow diagram.

Arrowheads Signup and view all the answers

In a piping layout, _____ line sketches are used.

Single Signup and view all the answers

An ellipse is the result of:

Viewing a circle obliquely Signup and view all the answers

When projecting views of an object, the key view is the _____ view.

Front Signup and view all the answers

The plan view of an object is actually the _____ view.

Top Signup and view all the answers

A drawing instrument commonly used to draw parallel lines is the:

Triangle Signup and view all the answers

An octagon has _____ sides.

Eight Signup and view all the answers

To show materials of construction in a sketch we can use:

Section lining Signup and view all the answers

A flow diagram uses _____ to represent equipment.

Symbols Signup and view all the answers

Study Notes

Sketching Fundamentals in Power Engineering

Sketched objects must be accurate representations, achieved by drawing to scale, using detail, maintaining proportions, presenting multiple views, and using colors.
It's essential to utilize detail effectively in sketches; this includes showing color, multiple views, and sectional perspectives when possible.
The initial lines drawn in a sketch are crucial, as they must depict the main proportions and outlines of the object clearly.
Typically, three views are necessary to adequately capture all sides of an object: a front view, a side view, and a top view for comprehensive representation.
Section lines that represent specific materials should be drawn at an angle of 45° for clarity.
Sketch sections highlight necessary details of an object, offering a specific view to enhance understanding.
A protractor is a vital tool for measuring angles, ensuring accuracy in the angular representation of objects in sketches.
The most common views used in drawings include the plan view and side view, essential for constructing 2D representations of 3D objects.
The vertex, the intersection point of two lines, is crucial for geometric sketching and should be precisely identified.
Dimension lines indicate the distance between two points, which is essential for accurate measurements in sketches.
The American Standards Association, ANSI, ISO, ASME, and CSA are key organizations that standardize symbols for construction materials in technical drawings.
A pentagon, which is a five-sided figure, is a fundamental shape recognized in geometric terms.
Foundation or center lines should be established at the beginning of sketches and should extend across related views to maintain coherence.
Arrowheads are used in flow diagrams to indicate the direction of flow, providing clarity in movement or process descriptions.
Piping layouts utilize light line sketches to represent pipes’ routes and connections, ensuring clarity in diagrams.
An ellipse is formed when a circle is viewed obliquely, significantly impacting its appearance in sketches.
The key view when projecting objects is the front view, providing a primary perspective for representation.
The plan view, known as the top view, offers a bird's-eye perspective of the object and is crucial for details.
Triangles are commonly used drawing instruments for creating parallel lines, enhancing accuracy in linear sketches.
An octagon consists of eight sides, a fundamental polygon that appears in various engineering designs.
Material representation in sketches can utilize cross-hatching to effectively indicate different construction materials.
Flow diagrams effectively use symbols to represent equipment, streamlining communication in engineering processes.

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Description

Test your knowledge of sketching fundamentals in Power Engineering with this quiz. Focus on the importance of scale, detail, proportion, views, and the use of color in sketches. Perfect for those looking to reinforce their understanding of effective sketching techniques.