Question

Different views of the cross section of a fish toy are shown here. The points P and Q are connected in such way that the fish tail waves. The grey colour gear and the green colour part are joined together. The rod is free to move depending on how it is connected to the green part. Which of
the option(s) will work to wave the tail?

• A.

  

• B.

  

• C.

  

• D.

  

Answer 1

The Correct Option is A, B, C

The fish toy functions through a mechanism that causes its tail to wave, driven by interconnected components. Let's analyze each option to determine which enables the tail waving motion:

This option shows a mechanism where the rod connects appropriately with the gear, allowing rotational motion to transfer to the tail. This connection likely enables the desired wave action through proper alignment and movement.

This configuration depicts another correct alignment. Here, the parts fit, allowing a mechanical transfer of motion from the gear to the rod, resulting in waving motion in the toy's tail. The assembly's design supports continuous movement.

This shows the components connected such that the rotational force translates directly to the tail, ensuring fluid motion. It maintains the gear and rod configuration necessary for waving.

This configuration does not connect the components in such a way to enable the tail's waving motion effectively. The misalignment of the rod or gear may inhibit transfer of motion.

Correct options are those where the gearing mechanism and connection with the rod facilitate the fish tail's wavy movement. Therefore, options with components 1, 2, and 3 are feasible for the desired waving action.