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A maximum of how many rods may be connected using a knuckle joint?

A maximum of how many rods may be connected using a knuckle joint? Correct Answer 3

Explanation:

Knuckle joint OR Forked Pin Joint:

  • Knuckle joint is used to connect two rods whose axes either coincide or interact and lie in one plane.
  • The knuckle joint is used to transmit axial tensile force.
  • Permits limited angular movement between rods, about the axis of the pin.
  • Unsuitable to connect two rotating shafts, which transmit torque.
  • Applications:  Valve mechanism of a reciprocating engine, bicycle chain, the fulcrum of a lever, etc.
  • In rare applications, a knuckle joint is used to connect three rods, two with forks and one with the eye.

Related Questions

If knuckle joint is to fail by crushing failure of pin in fork, then determine the diameter of knuckle pin when 50kN axial tensile force act on rods. Given: Max allowable compressive stress=25N/mm², thickness of each eye of fork=25mm.
The base of a right pyramid is a square of side 10 cm. 4 rods with maximum possible length have been kept in the pyramid. The volume of the pyramid (without keeping the rods inside) is 400 cm3. The radius of the base of all the rods is 0.7 cm. What will be the approximate volume of the remaining part of the pyramid (when rods are kept inside the pyramid)?
The diameter of knuckle pin in a knuckle joint is usually taken as (where d = Diameter of the rod)
Which of the following are components of the knuckle joint assembly?  I) Knuckle pin II) Single eye III) Double-eye
A maximum of how many roads may be connected using a knuckle joint?
Knuckle Joint can’t be used to connect two intersecting rods.
Two steel rods connected by cotter joint are subjected to 50 kN load each. What is the minimum diameter required of the rods? (Given: Yielding Stress= 400N/mm² ; Factor of Safety=6)
Read the given statements and conclusions carefully. Assuming that the information given in the statement is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statements: No boat is ship. Some ships are rods. Conclusions: I. No boat is rod. II. Some rods are ships. III. Some rods are not boats.
Three rods, one made of silver (l = 420W/m K), second made of aluminum (k = 210W/m K) and the third made of iron (k = 70W/m K) are coated with a uniform layer of wax all around. The rods are placed vertically in a boiling water bath with 250 mm length of each rod projecting outside. If all the rods are having following dimensions i.e. diameter = 15 mm and length = 300 mm and have identical surface coefficient 12.5W/ m2 K, work out the ratio of lengths up to which wax will melt on each rod
Statements : All rods are bricks. Some bricks are ropes. All ropes are doors.

Conclusions :
I. Some rods are doors.
II. Some doors are bricks.
III. Some rods are not doors.
IV. All doors are ropes.