EIAT EIAT Reading Comprehension and Technical Documents 5 — Questions and Answers
Question 1: 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:
- 2 feet
- 4 feet (Correct answer)
- 5 feet
- 6 feet
Correct answer: 4 feet
125 fpm falls in the 51–150 fpm range, requiring a minimum pit depth of 4 feet.
Question 2: A technical memo states that a relay 'de-energizes' when the safety circuit opens. De-energizing a relay coil means:
- Electrical current continues flowing through the coil
- Current to the coil is interrupted, releasing the magnetic field (Correct answer)
- The relay contacts are welded in the closed position
- Voltage to the relay increases above rated value
Correct 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.
Question 3: You are reading an elevator contract drawing that includes a 'legend' box. The legend's purpose is to:
- List the names of the engineers who approved the drawing
- Define the symbols, abbreviations, and line types used throughout the drawing (Correct answer)
- Provide the installation sequence for major components
- Specify the warranty terms for installed equipment
Correct 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.
Question 4: 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:
- Proceed carefully since the warning is a general guideline
- Move the car to the bottom landing before performing the adjustment (Correct answer)
- Perform the adjustment and then lower the car afterward
- Skip the adjustment and document it as inaccessible
Correct 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.
Question 5: 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:
- The gross platform area minus the area occupied by handrails and panels (Correct answer)
- The total exterior dimensions of the cab
- The weight of the platform structure itself
- The average load over a 12-month period
Correct 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.
Question 6: 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:
- Faster elevators always have higher load capacities
- Load capacity and speed are often inversely related in rating tables (Correct answer)
- Speed and capacity are identical regardless of configuration
- Load capacity increases proportionally with speed
Correct 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.
Question 7: 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:
- Rigid metal conduit only
- A cable tray or raceway (Correct answer)
- Open air without any enclosure
- Underground duct banks
Correct 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.
EIAT EIAT Reading Comprehension and Technical Documents 5
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: