Top 350+ Solved CAD-CAM and Automation MCQ Questions Answer
Q. When a smooth curve is approximated through the data points, then the curve is knownas
a. approximation curve
b. pitch curve
c. data curve
d. interpolant curve
Q. Synthetic curve pass through defined data points and thus can be represented by
a. polynomial equations
b. exponential equations
c. partial differential equations
d. differential equations
Q. Mathematically, the ellipse is a curve generated by a point moving in space such that atany position the sum of its distances from two fixed points (foci) is constant and equal to
a. the major diameter
b. the minor diameter
c. semi major diameter
d. semi-minor diameter
Q. The parabola is defined mathematically as a curve generated by a point that moves suchthat its distance from the focus is always__________the distance to the directrix
a. larger than
b. smaller than
c. equal to
d. none of the above
Q. In synthetic curves, zero-order continuity yields
a. a position continuous curve
b. a slope continuous curve
c. a curvature continuous curve
d. none of the above
Q. In synthetic curves, first-order continuity yields
a. a position continuous curve
b. a slope continuous curve
c. a curvature continuous curve
d. none of the above
Q. The B-spline curve has a
a. first-order continuity
b. second-order continuity
c. zero-order continuity
d. none of the above
Q. To determine the coefficients of the equation – two end-points and the two tangentvectors. This statement is true for which of the following?
a. B-spline curve
b. Hermite Cubic Spline Curve
c. Beizer curve
d. none of the above
Q. The Bezier curve is smoother than the Hermite cubic spline because it has _________ orderderivatives.
a. lower
b. higher
c. lower and higher both
d. none of the above
Q. In the bezier curve, the curve is always________to first and last segments of the polygon
a. normal
b. parallel
c. tangent
d. none of the above
Q. ________curves allow local control of the curve.
a. Analytical
b. Hermite cubic spline
c. Beizer
d. B-Spline
Q. In Beizer Curve, the curve follows __________
a. the control points
b. the shape of the defining polygon
c. the defining points
d. none of the above
Q. In Beizer Curve, the flexibility of the shape would increase with _______ of the polygon.
a. decrease in the number of vertices
b. increase in the number of vertices
c. decrease in control points
d. none of the above
Q. The degree of the curve is independent of the number of control points in _____
a. Hermite cubic spline curve
b. Bezier curve
c. B-spline curve
d. Hyperbola
Q. In modeling of a tabulated cylinder, the plane of the curve is _______
a. along the curve
b. normal to the curve
c. along the axis of the cylinder
d. perpendicular to the axis of the cylinder