Bissoy.com
Doctors Medicines MCQs Q&A

Which of the following mechanisms represents an inversion of the double slider crank chain? 

Which of the following mechanisms represents an inversion of the double slider crank chain?  Correct Answer Elliptical trammel

Explanation:

Mechanism and Inversion:

  • When one of the links of a kinematic chain is fixed, the chain is known as a mechanism.
  • A mechanism with four links is known as a simple mechanism, and the mechanism with more than four links is known as a compound mechanism.
  • We can obtain as many mechanisms as the number of links in the kinematic chain by fixing, in turn, different links in a kinematic chain.
  • This method of obtaining different mechanisms by fixing different links in a kinematic chain is known as the inversion of a mechanism.

 

INVERSION

Four Bar Chain Mechanism
  • Beam Engine (crank and lever mechanism)
  • Coupling rod of a locomotive (double crank mechanism)
  • Watt’s Indicator (Double lever mechanism)

Single Slider Crank Mechanism
  • First Inversion
    • Reciprocating engine or compressor.
  • Second Inversion
    • Whitworth quick return mechanism, Rotary engine etc.
  • Third Inversion
    • Slotted crank mechanism, Oscillatory engine.
  • Fourth Inversion
    • Hand pump, Pendulum pump or Bull engine.

Double Slider Crank Mechanism
  • Elliptical trammels
  • Scotch yoke mechanism
  • Oldham’s coupling

Related Questions

Consider the following statements: In a slider-crank mechanism, the slider is at its dead centre position when the (i) slider velocity is zero (ii) slider velocity is maximum (iii) slider acceleration is zero (iv) slider acceleration is maximum Which of the above statements are correct?
Match list I with list II List I List II A. Pantograph 1. Scotch yoke mechanism B. Single slider crank 2. Double lever mechanism C. Double slider crank chain 3. Tchebicheff’s mechanism D. Straight line motion mechanism 4. Double crank 5. Hand pump
In a slider crank mechanism, the length of the crank and connecting rod are 150 mm and 600 mm respectively. The crank position is 60° from inner dead centre. The crank shaft speed is 400 r.p.m. (clockwise). Velocity of the slider is ________
Which one of the following mechanisms is an inversion of double slider-crank chain?
If the crank rotation angle varies from 45 degrees to 135 degrees, Using three precision points with chebyshev’s spacing, synthesize a slider crank mechanism where where displacement of slider is square of the crank rotation. From the above information calculate ‘a’ in mm.
If the crank rotation angle varies from 45 degrees to 135 degrees, Using three precision points with chebyshev’s spacing, synthesize a slider crank mechanism where where displacement of slider is square of the crank rotation. From the above information calculate ‘c’ in mm.
If the crank rotation angle varies from 45 degrees to 135 degrees, Using three precision points with chebyshev’s spacing, synthesize a slider crank mechanism where where displacement of slider is square of the crank rotation. From the above information calculate ‘b’ in mm.
In a slider crank mechanism, the length of the crank and connecting rod are 180 mm and 540 mm respectively. The crank position is 45° from inner dead centre. The crank shaft speed is 450 r.p.m. (clockwise), calculate angular velocity of the connecting rod in rad/s.
In a slider-crank mechanism, the crank is rotating with an angular velocity of 20 rad/s in counterclockwise direction. At the instant when the crank is perpendicular to the direction of the piston movement, velocity of the piston is 2 m/s. Radius of the crank is
In a slider crank mechanism, the crank rotates with a constant angular velocity of 300 rpm, Length of crank is 150mm, and the length of the connecting rod is 600mm. Determine linear velocity of the midpoint of the connecting rod in m/s. Crank angle = 45° from IDC.