Top 350+ Solved CAD-CAM and Automation MCQ Questions Answer

From 211 to 225 of 339

Q. The degree of the B-spline with varying knot vectors

a. Increases with knot vectors

b. Decreases with knot vectors

c. Remains constant

d. none of the above

  • a. Increases with knot vectors

Q. In the bezier curve, the curve is always to first and last segments of thepolygon

a. normal

b. parallel

c. tangent

d. none of the above

  • c. tangent

Q. The unit vector in the direction of the line is defined as .

a. tangent vector+length of the line

b. tangent vector-length of the line

c. tangent vector/length of the line

d. length of the line/tangent vector

  • c. tangent vector/length of the line

Q. From the following, which is an axisymmetric surface?

a. Plane Surface

b. Ruled Surface

c. Surface of Revolution

d. All of the above

  • c. Surface of Revolution

Q. curves allow local control of the curve

a. Analytical

b. Hermite cubic spline

c. Beizer

d. B-Spline

  • d. B-Spline

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

  • b. Hermite Cubic Spline Curve

Q. In synthetic curves, second-order continuity yields

a. a position continuous curve

b. a slope continuous curve

c. a curvature continuous curve

d. none of the above

  • c. a curvature continuous curve

Q. When a smooth curve is approximated through the data points, then the curve isknown as

a. interpolant curve

b. approximation curve

c. pitch curve

d. data curve

  • b. approximation curve

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

  • b. the shape of the defining polygon

Q. In Beizer Curve, the flexibility of the shape would increase with

a. decrease in the number of vertices

b. increase in the number of vertices

c. decrease in control points

d. none of the above

  • b. increase in the number of vertices

Q. The number of control points can be added orsubtracted in .

a. Bezier curve

b. B-spline curve

c. Cubic spline curve

d. all of the above

  • b. B-spline curve

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

  • c. B-spline curve
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