Machine Drawing Multiple Choice Questions on “Types of Section”.
1. When the interior of an object is complicated, which of the following view is used?
a) Front view
b) Side view
c) Top view
d) Sectional view
Answer: d
Clarification: When the interior of an object is complicated, the number of dashed is overlap by the continuous lines due to their same position. For that reason sectional view is used. Top view or front view here may or may not be useful.
2. What is the type of sections from given option?
a) Full section
b) Side section
c) Top section
d) Front section
Answer: a
Clarification: Various types of sections which are used in section view are as following:
1 – Full section
2 – Half section
3 – Revolved section
4 – Removed section
5 – Broken out section
6 – Auxiliary section
7 – Assembly section.
3. When the cutting plane cuts the entire object the section is known as _______
a) Full section
b) Half section
c) Revolved section
d) Removed section
Answer: a
Clarification: When the cutting plane cuts the entire object the section is known as a full section. This method of sectioning is mostly used in sectioning work. It gives the total object details in one section.
4. Straight cutting plane in one line can be used if ___________
a) all the hidden objects are not in one line
b) all the hidden objects are in one line
c) the single line nor offset sectioning is useful and shape of the object is inclined
d) it is used for combined objects
Answer: b
Clarification: Straight cutting plane in one line can be used if all the hidden objects are in one line. Offset cutting planes can be used if the hidden objects are in one line. Straight cutting planes are not useful for the combined objects.
5. Inclined and offset cutting planes can be used if __________
a) all the hidden objects are not in one line
b) all the hidden objects are in one line
c) the single line nor offset sectioning is useful and shape of the object is inclined
d) it is used for combined objects
Answer: d
Clarification: Inclined and offset cutting planes can be used for combined objects. Inclined cutting planes can be useful when neither single line nor offset sectioning is useful. And also it is useful when the shape of the object is inclined.
6. For the object which is symmetrical about the central axis; from which method of section it can be drawn __________
a) Full section
b) Half section
c) Revolved section
d) Removed section
Answer: b
Clarification: Half section method of sectioning is useful for objects symmetrical about the central axis. For half section consider the two planes which are perpendicular to each other containing the center line of the object. Other methods are not useful for the objects symmetrical about the vertical axis.
7. When the section is to be drawn for a small area of the object, a ________section is used.
a) full section
b) half section
c) revolved section
d) removed section