61.
Parabolic curves is not used in
A
Arches
B
Bridges
C
Sound reflectors
D
Boring
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Parabolic curves is not used in
Arches
Bridges
Sound reflectors
Boring
While cutting, if the plane is at an angle and it cuts all the generators, then the conic formed is called
Circle
Ellipse
Parabola
Hyperbola
Which of the following is a conic section?
Circle
Square
Pentagon
Rectangle
When the point is within the circle, the curve is called an
Inferior trochoid
Superior trochoid
Inscribed trochoid
Superior trochiod