Firefighter Practice Exam

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What is the primary use of a torque wrench?

To measure electric flow
To provide a specific amount of tension
To cut metal
To hold bolts in place

The correct answer is: To provide a specific amount of tension

The primary use of a torque wrench is to provide a specific amount of tension. This tool is essential in various mechanical applications, particularly in automotive and construction work, where it is crucial to ensure that fasteners, such as bolts and nuts, are tightened to a precise torque specification. This precision is vital because it helps avoid issues related to under-tightening, which could lead to mechanical failure, or over-tightening, which can damage components or create safety hazards. By using a torque wrench, a user can apply a controlled amount of force to a fastener, ensuring that it is secure while adhering to the manufacturer's specifications. This not only enhances the reliability and safety of the assembly but also extends the lifespan of the parts involved.