Which of the following is not an enlarging scale?

Mechanical Engineering : Engineering Drawing - Quiz(MCQ)

2:1

3:5

4:3

6:1

Correct Answer : Option (B) : 3:5

Explanation : Enlarging scale means that the drawing is larger than the actual object. Hence the representative fraction will be greater than unity. For reducing scale the representative fraction is less than unity.

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The Press-Pull tool will ________ the face of a solid model in the direction it faces.

Spiral

Extrude

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None of the above

Correct Answer : Extrude

Architectural drafters generally prefer to use ________ drawings to help illustrate 3-dimensional views of a structure.

Perspective

Auxiliary

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Orthographic

Correct Answer : Perspective

This is used to indicate that a surface is to be machined:

Machining mark

Finish mark

Coordinate mark

Roughness indicator

Correct Answer : Finish mark

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