SPECIAL CURVES IN TECHNICAL DRAWING(PARABOLA/ HYPERBOLA )

The locus of a point which moves so that its distances from a fixed point, the focus and a fixed straight line, the directrix are always equal is

• Hyperbola

• Ellipse

• Parabola

• Directrix

If the eccentricity is greater than 1 , the curve formed is

• Parabola

• Ellipse

• Circle

• Hyperbola

Which of the following is not a locus?

• Isometric

• parabola

• ellipse

• helix

The ratio of the distance of the point from the focus to the distance of the point from the directrix is known as

• Locus

• Eccentricity

• parabola

• triangle

If the distance from the focus is 4 units and the distance from the directrix is 4 units, then calculate the eccentricity.

• hyperbola

• ellipse

• involute

• parabola

Which of the following does not belong to a parabola?

• vertex

• focus

• major axis

• directrix

The axial movement, in helix, during one revolution is known as

• CIRCUMFERENCE

• PIE

• LEAD

• AXIS

Application of helices can be found in one of the following, except.

• headlamp

• screw thread

• spring

• worm gear

If the point moves anticlockwise and away from the observer, the helix is

• Straight handed

• right-handed

• circle

• left-handed

The eccentricity of ellipse is

• less than 1

• zero

• greater than 1

• equal to 1