When operating a pneumatic torque wrench, Technician A says that the operator must hold the trigger until the socket comes to a stall and stops turning. Technician B says that it is important that the operator keep their hand away from the reaction arm. Who is correct?
A) A only
B) B only
C) Both A & B
D) Neither A nor B
Answer (2)
Both Technician A and Technician B are correct in their statements about operating a pneumatic torque wrench. Technician A highlights the importance of keeping the trigger pressed until stalling occurs, while Technician B emphasizes the need for hand safety away from the reaction arm. Therefore, the correct answer is C) Both A & B.
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The question revolves around the proper use and safety precautions for operating a pneumatic torque wrench. This tool is widely used in engineering and automotive applications for fastening bolts and nuts with precision. When considering the actions of Technician A and Technician B, both provide important insights into operating this equipment safely and effectively.
Technician A says the operator must hold the trigger until the socket comes to a stall and stops turning. This statement is correct. Holding the trigger ensures that the torque applied to the fastener reaches the desired level before the tool comes to a stop, avoiding under-tightening.
Technician B emphasizes the importance of keeping the hand away from the reaction arm. This is also correct. The reaction arm is designed to hold the wrench in place as it generates torque. It can move or shift if not correctly secured, which can be dangerous. Keeping your hand away prevents potential injury if the arm moves suddenly or if there is contact with moving parts.
Therefore, the correct answer is C) Both A & B, as both technicians' advice focuses on ensuring accurate results and maintaining safety during tool operation.
