Engineering Drawings important mcq points

Engineering Drawings important mcq points

1. The projection showing the front in the true shape and size is oblique.

2. visible typeof line has precedence over all other types of lines.

3. Inclined planes in a three-view drawing will appear as foreshortened in each view.

4. When a surface of an object is inclined to a plane of projection, it will appear in the view foreshortened.

5. The top view of an object should typically be drawn directly below the front view.

6. The top and right-side views have common dimensions of height and width.

7. oblique type of projection is when projectors are parallel to each other, but are at an angle other than 90 degrees to the plane of projection:

8. This is how axonometric, oblique, and perspective sketches show objects Pictorially.

9. The primary unit of measurement for engineering drawings and design in the mechanical industries is the millimeter.

10. prism type of solidhas two bases that are parallel equal polygons.

11. The solid having a polygon for a base and triangular lateral face intersecting at a vertex is pyramid.

12. line is formedwhere three or more surfaces intersect.

13. Hidden linesare drawn as dashed narrow lines.

14. Line composed of closely and evenly spaced short dashes in a drawing represents hidden edges.

15. Lettering on a drawing sheet should have

all alphabets in capital letters.

16. The line connecting a view to note is called leader line.

17. The dimension figure for radius of a circle should be preceded by CR.

18. The recommended method of dimensioning a sphere with diameter 80 mm is Sф80.

19. Methods of arrangement of dimensions includes Parallel, continuous and combined.

20. Superimposed dimensioning is a simplified method of parallel dimensioning.

21. A curve drawn for Boyle’s law (PV = constant) on a P-V chart has a characteristic shape of rectangular hyperbola.

22. The profile of a gear teeth is in the form of involute.

23. When two angles together make 90º, they are called complementary angles.

24. The included angle of a hexagon is 120º.

25. The curve generated by a point on the circumference of a circle, which rolls without slipping along outside of another circle is known as Epicycloid.

26. In orthographic projections, the rays are assumed to be parallel.

27. If an object lies in third quadrant, its position with respect to reference planes will be behind V.P., below H.P.

28. If the Vertical Trace (V.T.) of a line lies 30 mm above reference line (XY), then its position will be 30 mm above H.P.

29. When an object is cut by a section plane parallel to H.P and perpendicular to V.P, then the sectional view of the object is obtained in top view.

30. Sphereof the object gives a circular section, when it is cut completely by a section plane (irrespective of the angle of the section plane)

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