Mechanism MCQ

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• A rotary internal combustion engine has __________ cylinders.
  ক

  four

  খ

  five

  গ

  six

  ঘ

  seven
• Which of the following is an inversion of a double slider crank chain?
  ক

  Oldham’s coupling

  খ

  Elliptical trammel

  গ

  Scotch yoke mechanism

  ঘ

  All of the mentioned
• Scotch yoke mechanism is used to generate
  ক

  sine functions

  খ

  square roots

  গ

  logarithms

  ঘ

  inversions
• The whitworth quick return motion mechanism is formed in a slider crank chain when the
  ক

  coupler link is fixed

  খ

  longest link is a fixed link

  গ

  slider is a fixed link

  ঘ

  smallest link is a fixed link
• Which of the following is an inversion of a single slider crank chain?
  ক

  Pendulum pump

  খ

  Oscillating cylinder engine

  গ

  Rotary internal combustion engine

  ঘ

  All of the mentioned
• The mechanism consisting of three turning pairs and one sliding pair, is called a
  ক

  single slider crank chain

  খ

  whitworth quick return motion mechanism

  গ

  crank and slotted lever quick return motion mechanism

  ঘ

  all of the mentioned
• In a single slider crank chain
  ক

  each of the four pairs is a turning pair

  খ

  one is a turning pair and three are sliding pairs

  গ

  two are turning pairs and two are sliding pairs

  ঘ

  three are turning pairs and one is a sliding pair
• The mechanism in which two are turning pairs and two are sliding pairs, is called a
  ক

  double slider crank chain

  খ

  elliptical trammel

  গ

  scotch yoke mechanism

  ঘ

  all of the mentioned
• The inversion of a mechanism is
  ক

  changing of a higher pair to a lower pair

  খ

  turning its upside down

  গ

  obtained by fixing different links in a kinematic chain

  ঘ

  obtained by reversing the input and output motion
• Which of the following statement is correct as regard to the difference between a machine and a structure?
  ক

  The parts of a machine move relative to one another, whereas the members of a structure do not move relative to one another.

  খ

  The links of a machine may transmit both power and motion, whereas the members of a structure transmit forces only.

  গ

  A machine transforms the available energy into some useful work, whereas in a structure no energy is transformed into useful work.

  ঘ

  all of the mentioned
• The method of obtaining different mechanisms by fixing in turn different links in a kinematic chain, is known as
  ক

  structure

  খ

  machine

  গ

  inversion

  ঘ

  compound mechanism