During the horizontal load test, how long must the test weight be held?

• A. 5 minutes
• B. 2 minutes
• C. 10 minutes
• D. 15 minutes

Answer: (A)

This test checks whether the aerial device can hold a steady horizontal load without shifting or creeping. Holding the test weight for five minutes gives enough time to reveal any slow deflection, creep in pins or joints, movement at stabilizers or anchor points, or pressure drift in the hydraulic system. If the load were held for only a short time, gradual settling might not show up; a longer hold isn’t necessary and would just add test time. Five minutes is a practical balance that confirms the structure can sustain the side load safely during operation.