Base diameter of conical helix is 50 mm, height of helix is 30 mm, angle between the base and slanting side of cone is 60 degrees. What is the top end diameter of the helix?

Topics in this quiz include: Conic sections basics, evolutes and helix construction, cam, helical springs and screw threads construction.   Here are some curves used in engineering drawing: Conic section: A quadratic curve that results from a plane intersecting a cone's surface. The three types of conic sections are the hyperbola, the parabola, and the ellipse. Cycloid: The path of a point on a circle that moves along a straight line without slipping. Ellipse: The locus of all points in a plane where the sum of their distances from two fixed points is constant. The fixed points are known... Show more

Topics in this quiz include: Conic sections basics, evolutes and helix construction, cam, helical springs and screw threads construction.
 

Here are some curves used in engineering drawing:
Conic section: A quadratic curve that results from a plane intersecting a cone's surface. The three types of conic sections are the hyperbola, the parabola, and the ellipse.
Cycloid: The path of a point on a circle that moves along a straight line without slipping.
Ellipse: The locus of all points in a plane where the sum of their distances from two fixed points is constant. The fixed points are known as the foci, and the fixed line is the directrix.
Compound curve: A curve made up of two or more circular curves that are connected end to end with different radii and centers. Compound curves are used when a more gradual transition between straight sections is required.
Reverse curve: A curve made up of two circular curves with opposite directions. Reverse curves are used when a significant change in alignment direction is needed. 

Other curves used in engineering drawing include: Involute, Evolute, Spiral, Helix. 
 

Related test: Engineering Drawing Practice Test: Geometrical Construction

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