In a coupling rod of a locomotive, each of the four pairs is a ________ pair.
A. Sliding
B. Turning
C. Rolling
D. Screw
Answer: Option C
Solution(By Examveda Team)
A coupling rod in a locomotive is a crucial component that connects the driving wheels of the locomotive. It plays a vital role in transmitting motion from the piston to the wheels. The question is asking about the type of pair formed by each connection between the coupling rod and the driving wheel.A coupling rod forms a rolling pair with the driving wheel. In a rolling pair, the relative motion between the components involves pure rolling, where one component rolls over the surface of the other without any sliding or slipping. This is an essential characteristic for efficient power transmission and reduced wear and tear in locomotives.
While the locomotive is in operation, the coupling rod experiences complex motion due to the varying forces and angles involved. However, the primary mode of relative motion between the coupling rod and the driving wheel is rolling, which ensures smoother operation and improved efficiency of the locomotive's power transmission system.
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C. Rolling
D. Screw
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Turning pair
Coupling rod of locomotive is an inversion of 4 bar chain which is an all turning pair mechanism. So rollimg is wrong answer amd turning is correct
The coupling rods transfer the power of drive to all wheels. Hinged side rods connecting the driving wheels.
Because , two coaches which are joined by these coupling rods needs to have the freedom of rotation , whenever the train hits a curved track. So the coupling rod hinges at both the coaches and locomotive
Because is joint is turn
how?
Can anyone explain it