EIAT Reading Comprehension and Technical Documents Flashcards

A code reference table lists elevator pit depth requirements as follows: 'Minimum 2 ft for speeds ≤50 fpm; 4 ft for speeds 51–150 fpm; 6 ft for speeds above 150 fpm.' For an elevator rated at 125 fpm, the required minimum pit depth is:

Answer: 4 feet

125 fpm falls in the 51–150 fpm range, requiring a minimum pit depth of 4 feet.

A technical memo states that a relay 'de-energizes' when the safety circuit opens. De-energizing a relay coil means:

Answer: Current to the coil is interrupted, releasing the magnetic field

De-energizing a relay coil means current stops flowing through it, collapsing the magnetic field and allowing contacts to return to their normal position.

You are reading an elevator contract drawing that includes a 'legend' box. The legend's purpose is to:

Answer: Define the symbols, abbreviations, and line types used throughout the drawing

A legend on a technical drawing defines the symbols, abbreviations, and line conventions used so readers can correctly interpret the diagram.

A service manual cautions: 'Perform this adjustment with the car at the bottom landing ONLY.' A technician needs to make this adjustment while the car is at the third floor. The technician should:

Answer: Move the car to the bottom landing before performing the adjustment

Safety cautions in service manuals are mandatory requirements; the technician must position the car at the specified location before proceeding.

An ASME A17.1 code excerpt reads: 'The rated load shall be based on the net inside platform area.' The word 'net' in this context most likely means:

Answer: The gross platform area minus the area occupied by handrails and panels

In this context, 'net inside platform area' refers to the usable floor space after subtracting any area taken up by fixed interior features.

A load chart for a traction elevator shows capacity ratings at different speeds: 2,500 lb at 100 fpm and 2,000 lb at 200 fpm. This relationship illustrates that in elevator specifications:

Answer: Load capacity and speed are often inversely related in rating tables

Elevator rating tables frequently show that higher operating speeds correspond to lower rated load capacities due to motor and mechanical design constraints.

A passage from a technical specification states: 'All wiring shall be run in conduit, except low-voltage signal wiring, which may be run in cable trays or raceways.' A 24V control signal wire would most appropriately be installed in:

Answer: A cable tray or raceway

At 24V, the wire qualifies as low-voltage signal wiring, which the specification explicitly permits to be run in cable trays or raceways.