A(n) _____ is used to determine the tension of a belt.

• A. Tensiometer
• B. Caliper
• C. Ruler
• D. Micrometer

Answer: (A)

Measuring belt tension is about quantifying how tight the belt is so it transmits power effectively without slipping or causing excessive wear. A tensiometer is built specifically for this task. It either measures the force needed to deflect the belt a set amount or uses a calibrated scale that translates belt deflection into a tension value, giving you a direct readout in pounds or newtons. This direct tension measurement lets you compare against the manufacturer’s specification and adjust as needed.

Calipers, rulers, and micrometers, by contrast, are tools for dimensions: thickness, width, length, or diameter. They don’t tell you how much force the belt is under, so they can’t reliably indicate whether the belt tension is correct.