Explanation:
The question is related to the component of acceleration present in different mechanisms. Let's discuss each option and find out the correct answer.

a) 4-bar mechanisms with 4 turning pairs:
A 4-bar mechanism consists of four links connected by four turning pairs. The turning pairs can be revolute or prismatic joints. This mechanism is widely used in various applications such as engines, machines, and robotics. However, the component of acceleration present in this mechanism is not related to the question. Therefore, option A is not correct.

b) Shaper mechanism:
The shaper mechanism is a type of reciprocating machine tool. It is used to produce flat or curved surfaces on a workpiece. This mechanism consists of a ram, a cutting tool, and a worktable. The component of acceleration present in this mechanism is the Carioles component of acceleration. Therefore, option B is correct.

c) Slider-crank mechanism:
The slider-crank mechanism is a type of reciprocating mechanism used in engines, pumps, and compressors. It consists of a piston, a connecting rod, and a crankshaft. The component of acceleration present in this mechanism is the tangential component of acceleration. Therefore, option C is not correct.

d) Scotch Yoke mechanism:
The Scotch Yoke mechanism is a type of reciprocating mechanism used in engines and compressors. It consists of a yoke, a piston, and a crankshaft. The component of acceleration present in this mechanism is the radial component of acceleration. Therefore, option D is not correct.

Conclusion:
From the above explanation, we can conclude that the correct answer is option B, i.e., Shaper mechanism. The Carioles component of acceleration is present in the shaper mechanism.