CAD-CAM and Automation MCQs with answers Page - 45

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Q. To create a hollow part, which of the following command would be most efficient?

  • (A) Extrude
  • (B) Sweep
  • (C) Shell
  • (D) Revolve

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Q. The curve is defined as the locus of a point moving with _ degree of freedom

  • (A) 0
  • (B) 1
  • (C) 2
  • (D) 3

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Q. Write parametric equation of line having end points P1(3,5,8) and P2 (6,4,3).

  • (A) [3 5 8]+u[3 -1 -5]
  • (B) [3 5 8]+u[3 1 5]
  • (C) [3 8 5]+u[3 -1 -5]
  • (D) [3 5 8]+u[-3 1 5]

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Q. Find the tangent vector of line having end points P1(3,5,8) and P2 (6,4,3)

  • (A) 3i+j-5k
  • (B) 3i-j-5k
  • (C) 3i-j+5k
  • (D) -3i-j-5k

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Q. Find coordinates of points on line having end points P1(3,5,8) and P2 (6,4,3) at u=0.25

  • (A) [3.75 4.25 6.25]
  • (B) [3.25 4.25 6.25]
  • (C) [3.75 4.75 6.75]
  • (D) [4.25 3.75 6.25]

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Q. Two lines are parallel when

  • (A) P1 X P2=0
  • (B) P1 . P2=0
  • (C) P1 = P2
  • (D) P1+ P2=0

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Q. Two lines L1 and L2 having Parametric equations are P1=[3 4 7]+u[2 2 -6] and P2=[1 5 -2]+u[1 4 2]. Tangent vector for line L1

  • (A) 2i+2j-6k
  • (B) 2i+2j+6k
  • (C) 2i-2j-6k
  • (D) 6-2j-2k

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Q. For Q 45, Tangent vector for line L2

  • (A) i+4j-k
  • (B) 2i+4j+k
  • (C) i-4j-2k
  • (D) i+4j+2k

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Q. For Q 45, Lines are perpendicular?

  • (A) True
  • (B) False
  • (C) ---
  • (D) ---

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Q. Parametric equation for circle

  • (A) X=x+Rcosu; Y=y+Rsinu; Z=z
  • (B) X=Rcosu; Y=Rsinu; Z=z
  • (C) X=x+Rsinu; Y=y+Rcosu; Z=z
  • (D) X=Rsinu; Y=y+Rcosu; Z=z

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