# Engineering Drawing Questions and Answers – Drawing Regular Polygons & Simple Curves – 2

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This set of Engineering Drawing Question Paper focuses on “Drawing Regular Polygons & Simple Curves – 2”.

1. What is the shape with ‘n’ no. of sides, in which all the sides are equal, called?
a) Rectangle
b) Circle
c) Triangle
d) Regular polygon

Explanation: A regular polygon is a shape with 4 or more sides and all the sides are of equal length. A regular polygon with five, six, seven, etc. sides are called as a regular pentagon, regular hexagon, regular heptagon, etc. respectively.

2. For drawing a regular hexagon, the fastest method is to draw the hexagon using the circle and then cutting arcs equal to the diameter which is equal to the side of the regular hexagon.
a) True
b) False

Explanation: For drawing a regular hexagon, the fastest method is to draw a circle with diameter equal to the length of the side of the regular hexagon and then dividing the circle into six parts by cutting arcs equal to the diameter of the circle on its circumference. Then the intersection points are joined to form the hexagon.

3. _______ is a curve with two same curves in which one curve is a reverse of the other curve.
a) Ellipse
b) Parabola
c) Ogee
d) Hyperbola

Explanation: An ogee curve is a curve with two curves in which one curve is a reverse of the other curve. Both curves are of same radii. They both are tangent to parallel lines or in other words, the tangents to both the curves are parallel to each other.

4. For drawing a polygon with a side of given length, first we draw a ______ with centre at one of the ends of the length and the radius as length.
a) Circle
b) Arc
c) Semicircle
d) Quarter circle

Explanation: For drawing a polygon with a side of given length, first we draw a semicircle with centre at one of the ends of the length and the radius as the length. The next step is to divide the semicircle into the number of sides of the polygon.

5. The second step in drawing a polygon is to divide the semicircle into the number of ____ the polygon has.
a) Vertices
b) Edges
c) Diagonals
d) Sides

Explanation: The second step in drawing a polygon is to divide the semicircle into the number of sides the polygon has. In the first we draw a semicircle with centre at one of the ends of the length and the radius is taken as the length of the side of the polygon.

6. The third step involved in drawing a polygon is to join the _____ one being the second division on the semicircle and the other being the first centre.
a) Points
b) Lines
c) Planes
d) Surfaces

Explanation: The third step involved in drawing a polygon is to join the points one being the second division on the semicircle and the other being the first centre through which the c=semicircle was made in the first step.

7. While constructing a regular hexagon using a T-square and 30˚-60˚ set square, we draw circles.
a) True
b) False

Explanation: In drawing a regular hexagon using a T-square and a 30˚-60˚ set square, we draw parallel lines and not circles. As it is impossible to draw circles using T-square and 30˚-60˚ set squares. We draw these parallel lines using angles.

8. To draw an arc of given radius touching two straight lines at right angles with each other, we first draw ______ with centre at the intersection point of the two lines on both the lines.
a) An arc
b) A circle
c) A square
d) A triangle

Explanation: To draw an arc of given radius touching two straight lines at right angles with each other, we first draw an arc with centre at the intersection point of the two lines on both the lines. Then we draw another from the new intersection of the arc and the lines.

9. In the second step in drawing the arc of given radius touching two straight lines at right angles with each other, we draw another arc from the centre at the new intersection of the arc and the lines and keeping the radius same.
a) True
b) False

Explanation: In the second step in drawing the arc of given radius touching two straight lines at right angles with each other, we draw another arc from the centre at the new intersection of the arc and the lines and keeping the radius same. The intersection of these two new arcs is the centre of the required arc.

10. The tangent to both the curves in an ogee curve is perpendicular to each other.
a) True
b) False

Explanation: The tangent to both the curves in an ogee curve is parallel and not perpendicular to each other. An ogee curve is a curve with two curves with one of the curve being a reverse curve to the other. Hence it is also called as a reverse curve.

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