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Combination plier use to
Hold conductor
Cut conductor
Twist conductor
Any of above
Any of above
A combination plier is a versatile multi-purpose electrical hand tool designed to perform gripping, cutting, and twisting operations. Due to its unique jaw design featuring a flat-gripping area, a serrated pipe-gripping area, and a sharp side-cutting blade, it serves as an all-in-one tool for electrical installation and maintenance.
A combination plier is a versatile multi-purpose electrical hand tool designed to perform gripping, cutting, and twisting operations. Due to its unique jaw design featuring a flat-gripping area, a serrated pipe-gripping area, and a sharp side-cutting blade, it serves as an all-in-one tool for electrical installation and maintenance.
M.A.=LjтАЛLhтАЛтАЛ тАФ where M.A. is mechanical advantage, LhтАЛ is handle length, and LjтАЛ is jaw length
The tool operates on the principle of a third-class lever. When the handles are squeezed, the force applied is magnified at the jaws based on the ratio of the handle length to the jaw length. The pivot point allows for high mechanical advantage, enabling the user to apply sufficient pressure to hold wires firmly, cut through metallic conductors, or apply torque for twisting connections.
Combination pliers are typically insulated for voltage protection up to 1000V (VDE standards).
The side cutter portion is hardened to ensure longevity when cutting copper or aluminum wires.
The serrated jaws ensure a non-slip grip on cylindrical conductors or pipes.
Reduces the number of tools required in a technician's kit.
High mechanical advantage for efficient cutting.
Not suitable for precision electronics work compared to needle-nose pliers.
Can cause nicks on delicate conductors if used incorrectly.
General electrical wiring and maintenance.
Installation of conduit systems.
Cutting and stripping standard electrical cables.
Always ensure the insulation handles are intact and non-cracked before working on live circuits.
Option A, B, and C describe individual functions, all of which are integrated into the design of a combination plier.
D is correct тАФ The combination plier is specifically engineered to combine the functions of gripping, cutting, and twisting wires into a single robust tool.
In competitive exams, always check for 'All of the above' options in tool-related questions as they often encompass the multi-functional design intent of modern hand tools.