______________ is the structural steel truss members are designed to carry the entire load of the escalator equipment.

______________ is a recess in the floor to house the lower head and the lower end of the incline section.

______________ located below the floor line when there is no other floor under the escalator / moving walk such as a basement.

______________ is the space above a passenger's head when travelling with escalators

The minimum headroom is______________

______________ is driving gear with a drive or carrying sprocket wheel located at end portions

Drive system consists of...

______________provides a convenient handhold for passengers while they are riding the escalator.

______________is pulled along its track by a chain that is connected to the main drive gear by a series of pulleys.

The____________are linked by a continuous metal chain that forms a closed loop.

_______________are yellow strips or may be in bold color around the step tread but mostly located at the front and at the rear ends of the tread. They are used to visually locate the step separation and visual contrast between the steps and the combs.

Escalator systems are provided with many ___________that will automatically stop the escalator by cutting electrical power to the motor and applying the brake if a problem occurs.

_________________is an escalator safety device that turns the generator, which outputs a voltage of 6.72 volts. If the handrail speed drops below 80% or increases more that 110% over this voltage, then power to the escalator motor is cut and the brake is applied.