Technical Drafting NOCTI Practice Exam

What angle is created when 45 degree triangle is measured off of a 30 degree triangle? - Answer- 15 Degrees A protractor is used to measure what? - Answer- Angles Hard leads make what kind of lines? - Answer- Dark On the Engineering Scale, five ticks after "3" is equal to what measurement? - Answer- 3.50cm To draw a 2" Diameter circle on a drawing scaled 2X, a drafter would set their compass to - Answer- 2.00" The amount that a dimension may vary is called? - Answer- Tolerance Which is the proper method of dimensioning radii? - Answer- Arrow, Leader Line, and Measurement outside the object. A thick, heavy line with arrowheads is called ? - Answer- Cutting Plane Lines With the unidirectional system of dimensioning, dimension figures are lettered - Answer- So they can be read from the bottom or the right side of the sheet. Dividers are used to do what? - Answer- Measure Angles Cutting Plane Arrows should point in what direction? - Answer- In the direction of viewing What is the name of the tool used to draw a circle? - Answer- Compass What is the name of the tool used to measure length? - Answer- Scale The area on a drawing that contains the title block always contains the following. - Answer- All of the above The scale 1/4" = 1" can also be shown as. - Answer- One Fourth Size When a drawing is checked for dimensions, care should be taken to see that - Answer- All of the above Where should a leader line touch the leader note? - Answer- Left Middle In locating cylindrical shapes on a drawing, the dimensions should be given from - Answer- Between two finished surfaces The best results will be obtained when the lead of the compass is filed to a/an - Answer- Inside Bevel To avoid breaks or humps when drawing lines with a French curve, each setting should cover at least ________ consecutive points on the line. - Answer- 3 The lines used to show the limits of a dimension are called ___________ lines. - Answer- Projection Which one of the following items would be the most efficient to use when removing an over run line? - Answer- An Erasing Shield Using perpendicular lines inside a circle is a solution to what problem? - Answer- Finding the center of a circle The tangent point between a straight line and a circle is determined by what? - Answer- A straight line between the centers When 2 arcs are tangent to each other, the tangent point can be located by what? - Answer- A straight line between the centers The line that "touches" the circle is said to be ______________ to the circle. - Answer- Tangent Drawing two lines, making an arc (Arc 1) halfway through those lines, and the crossing two arcs (Arc 2, Arc 3) from each place that arc 1 crosses the lines is the process of what? - Answer- Bisecting an angle A triangle with each side equal in length is a/an ___________ triangle. - Answer- Equilateral The minimum attainable angle increment by using a combination of 45 degree and 30-60 degree triangles is. - Answer- 15 degrees A practical tool used in drawing irregular curves is the _____________. - Answer- French Curve An octagon has _________ sides. - Answer- Eight A circle that looks as if it has been tilted is a/an ___________. -