False, as an object falls its potential energy turns into kinetic energy thus decreasing the potential energy.
I believe the answer is a. Because the formula of kinetic energy is 1/2(m)•(v^2)
Predictive maintenance - vibration analysis.
Condition-based maintenance - monitoring pressure reading on Equipment with water systems.
Scheduled maintenance - occurring at repeating intervals is changing a bearing on a conveyor belt every 30 days or inspecting the condition of a motor every 90 days.
Hoping it helps!