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Question 1. Which Florida Building Code (FBC) chapter specifically governs elevators and conveying systems? A) Chapter 10 B) Chapter 30 C) Chapter 45 D) Chapter 70 Answer: B Explanation: FBC Chapter 30 contains the requirements for elevators, including seismic and hurricane design considerations. Question 2. Under ASME A17.1, what is the minimum illumination level required for the machine‑room work area? A) 5 lux B) 10 lux C) 15 lux D) 30 lux Answer: C Explanation: A17.1 mandates at least 15 lux (≈1.5 fc) on the work surface of the machine room to ensure safe maintenance. Question 3. NEC Article 620 modifies general rules for which of the following? A) Residential branch circuits B) Elevator feeder and branch circuits C) Outdoor lighting D) Commercial HVAC wiring Answer: B Explanation: Article 620 contains special provisions for elevators, including conductor sizing and overcurrent protection. Question 4. Which device prevents elevator operation when phase reversal occurs?
A) Ground fault circuit interrupter (GFCI) B) Phase‑loss relay C) Phase‑reversal relay D) Thermal overload Answer: C Explanation: A phase‑reversal relay detects and disables the elevator if the supply phases are reversed. Question 5. The primary power disconnect for an elevator must be located: A) Inside the car top operating station (CTOS) B) In the hoistway pit C) At the building service entrance D) Within sight of the machine‑room controller panel Answer: D Explanation: Code requires the main disconnect to be readily accessible and within sight of the controller to allow immediate shut‑off. Question 6. When calculating feeder size for an elevator, which NEC factor is applied? A) Demand factor from Table 220. B) Demand factor from Table 220. C) Demand factor from Table 620.53(A) D) No demand factor is used Answer: C Explanation: Table 620.53(A) provides reduced demand factors for elevator loads, allowing smaller feeder sizes. Question 7. Which motor type typically provides the highest efficiency for high‑rise traction elevators? A) AC induction motor B) DC shunt motor C) Permanent‑magnet synchronous motor (PMSM)
Explanation: The safety chain is a series of devices that must all be closed for normal operation, including pit stop, limits, governor, and door interlocks. Question 11. According to NEC 620.91, the emergency communication system for elevators must be powered by: A) The building’s general lighting circuit B) An independent battery backup C) A dedicated generator only D) A solar panel array Answer: B Explanation: NEC 620.91 requires an independent battery backup to ensure two‑way communication during power loss. Question 12. Which conduit type is permitted for wiring in the hoistway of a traction elevator? A) Flexible metal conduit (FMC) only B) Rigid metal conduit (RMC) or intermediate metal conduit (IMC) C) Non‑metallic conduit (PVC) only D) No conduit is allowed; wires must be direct‑buried Answer: B Explanation: RMC and IMC are acceptable for hoistway installations due to their fire‑resistance and mechanical protection. Question 13. The purpose of a pit illumination fixture is to: A) Provide emergency lighting for the car B) Allow maintenance personnel to see the pit during inspections C) Illuminate the machine‑room control panel D) Serve as a decorative feature Answer: B Explanation: Pit illumination provides adequate light for safe maintenance work in the pit area.
Question 14. When a hydraulic elevator pump motor is overloaded, which protective device typically trips first? A) Ground fault circuit interrupter (GFCI) B) Thermal overload relay in the motor starter C) Phase‑loss relay D) Emergency stop button Answer: B Explanation: The thermal overload relay monitors motor temperature and trips on overload conditions. Question 15. In a PLC‑based elevator controller, which I/O module would handle door‑open contact signals? A) Analog input module B) Digital input module C) Pulse output module D) High‑frequency output module Answer: B Explanation: Door‑open contacts are discrete binary signals, best handled by a digital input module. Question 16. The minimum clearance required around a machine‑room disconnect switch is: A) 6 in. on all sides B) 12 in. on the front only C) 30 in. on the front and 6 in. on the sides D) No clearance is required if the switch is locked Answer: C Explanation: NEC requires a minimum of 30 in. in front of disconnecting means and 6 in. on the sides to allow safe operation. Question 17. Which of the following best describes the function of a brake‑lift coil in an elevator? A) Provides regenerative power to the motor B) Energizes the brake to hold the car in position when stopped
Explanation: GFCIs are required in areas where personnel may be exposed to moisture, such as machine rooms. Question 21. Which NEC rule governs the maximum number of conductors allowed in a single raceway for elevator control circuits? A) 310.15(B)(3)(a) – Adjustment factors B) 380.22 – Flexible metal conduit C) 400.5 – Flexible cords D) 300.22 – Protection against physical damage Answer: A Explanation: Table 310.15(B)(3)(a) provides the fill limits for raceways based on conductor count and size. Question 22. In a traction elevator, the governor’s primary safety function is to: A) Provide power to the car’s lighting system B) Detect overspeed and activate the safety brake C) Control the speed of the motor during normal operation D) Supply emergency power to the car Answer: B Explanation: The governor monitors car speed and triggers the safety brake if overspeed is detected. Question 23. When performing a lockout/tagout (LOTO) on an elevator controller, which of the following must be isolated? A) Only the main feeder breaker B) Only the car‑top operating station C) All power sources, including feeder, controller disconnect, and machine‑room lighting circuits D) Only the emergency power supply Answer: C Explanation: Complete isolation of all energized parts is required for safe LOTO.
Question 24. Which of the following is NOT a permitted wiring method for hoist‑way power conductors? A) Rigid metal conduit (RMC) B) EMT (Electrical metallic tubing) C) Direct‑buried cable in concrete D) PVC conduit with a fire‑rating of 90 °C Answer: C Explanation: Direct‑buried cable is not allowed in the hoistway; conductors must be in a protected conduit system. Question 25. The NEC requires that elevator car‑top operating stations (CTOS) be equipped with: A) A dedicated 120 V receptacle only B) A lockout device and a means to limit car speed during maintenance C) Only a visual indicator light D) A wireless remote control system Answer: B Explanation: CTOS must allow safe maintenance by providing lockout and speed‑limiting capabilities. Question 26. Which of the following best describes the function of a “phase‑loss relay” in an elevator system? A) Detects loss of any one phase and shuts down the motor to prevent damage B) Provides a backup power source for the car lighting C) Controls the door operator motor speed D) Monitors the battery voltage of the emergency system Answer: A Explanation: Phase‑loss relays protect three‑phase motors by detecting loss of a phase and stopping operation. Question 27. A “traveling cable” must have a minimum bend radius of: A) 1 × cable diameter
Answer: B Explanation: Regenerative drives capture kinetic energy during braking and feed it back to the building’s power supply. Question 31. According to ASME A17.1, the minimum voltage rating for auxiliary outlets in the machine room is: A) 120 V B) 208 V C) 240 V D) 277 V Answer: C Explanation: A17.1 requires auxiliary outlets in the machine room to be rated for at least 240 V. Question 32. When sizing a conduit for a 400 A elevator feeder, which factor must be considered in addition to ampacity? A) The color of the conduit B) Ambient temperature correction factor C) The number of car doors D) The building’s fire‑sprinkler type Answer: B Explanation: Ambient temperature affects conductor ampacity; correction factors must be applied per NEC Table 310.15(B)(2)(a). Question 33. Which of the following is a required feature of the car‑top operating station (CTOS) for maintenance? A) A built‑in coffee maker B) A “speed‑limit” selector that reduces car speed to 25 % of normal C) A wireless charging pad for tools D) An automatic door opener for the car doors only Answer: B
Explanation: CTOS must allow the technician to limit car speed during maintenance for safety. Question 34. The “pit stop switch” is normally located: A) In the car top operating station B) At the bottom of the hoistway pit, accessible to maintenance personnel C) Inside the machine‑room control panel D) On the building’s main service entrance Answer: B Explanation: The pit stop switch is installed in the pit to allow emergency stopping of the car from the pit area. Question 35. Which NEC article governs the installation of emergency power supply systems for elevators? A) 700 – Emergency Systems B) 620 – Elevators, Escalators, Moving Walks, and Moving Platforms C) 210 – Branch Circuits D) 250 – Grounding and Bonding Answer: B Explanation: Article 620 contains the specific requirements for emergency power in elevator installations. Question 36. In a modern PLC‑based elevator controller, a “watchdog timer” is used to: A) Provide backup power to the car lighting B) Detect a loss of control processor operation and initiate a safe‑stop C) Measure the speed of the elevator car D) Control the door‑operator motor speed Answer: B Explanation: The watchdog timer monitors the controller’s health and triggers a safe‑stop if the processor fails.
B) A sensor that detects when the car reaches a predetermined travel point C) A circuit that limits the number of calls per minute D) A safety device that limits the weight capacity of the car Answer: B Explanation: Limit switches are positioned to detect car position and stop motion at set points. Question 41. The NEC permits the use of “flexible metal conduit” (FMC) for elevator wiring in the hoistway under which condition? A) Only for low‑voltage signaling cables B) When the conduit is listed for use in vertical installations and protected from physical damage C) FMC is never permitted in hoistways D) Only if the conduit is buried in concrete Answer: B Explanation: FMC can be used if it is listed for vertical installation and adequately protected. Question 42. When retrofitting a DC‑motor elevator to an AC‑induction motor, which code requirement must be addressed? A) Updating the fire‑sprinkler system B) Re‑routing all low‑voltage communication wires C) Re‑evaluating the feeder size and overcurrent protection per NEC 620 D) Changing the car‑top operating station color scheme Answer: C Explanation: Changing motor type affects load calculations, requiring a review of feeder sizing and OCPD per Article 620. Question 43. The “car‑top operating station” (CTOS) must be equipped with a “speed‑limiting device” that reduces the car speed to at most: A) 10 % of normal speed B) 25 % of normal speed C) 50 % of normal speed
D) 75 % of normal speed Answer: B Explanation: Code requires a speed‑limiting device that caps speed at 25 % of the normal operating speed for maintenance safety. Question 44. Which of the following is a required feature of the elevator’s emergency alarm bell? A) Must be audible for at least 120 dB at 3 ft B) Must be powered only by the building’s main supply C) Must be a visual strobe only, no audible component D) Must be located only in the machine room Answer: A Explanation: The emergency alarm must produce a minimum sound level of 120 dB at 3 ft to ensure audibility. Question 45. Which NEC table is used to determine the ampacity of conductors for elevator feeder circuits? A) Table 310.15(B)(16) B) Table 220. C) Table 310.15(B)(3)(a) D) Table 240. Answer: A Explanation: Table 310.15(B)(16) provides ampacity values for conductors based on size, insulation, and temperature rating. Question 46. The purpose of a “breaker‑failure alarm” in an elevator system is to: A) Notify occupants that the car is full B) Alert maintenance personnel that a protective breaker has failed to open C) Indicate that the door is stuck D) Signal that the battery backup is low Answer: B
Question 50. Which of the following is a required feature of the “car‑top operating station” (CTOS) lockout device? A) Must be a key‑operated lock that prevents removal without a duplicate key B) Must be a combination lock with a 4‑digit code C) Must be a padlock that can be opened with a universal key D) Must be a biometric scanner Answer: A Explanation: The lockout device must be key‑operated and not removable without the proper key to ensure controlled access. Question 51. The NEC requires that all elevator control wiring be protected from physical damage by: A) Placing it in a conduit with a minimum 1‑in. wall thickness B) Using only flexible cords C) Installing it in a raceway or conduit listed for the environment D) No protection is required if the conductors are THHN Answer: C Explanation: Control wiring must be installed in a listed raceway or conduit to guard against mechanical damage. Question 52. In a hydraulic elevator, the “control valve” sequencing is typically performed by: A) A micro‑processor only B) A series of electromechanical relays and solenoids C) A pneumatic pressure regulator only D) A manual lever operated by the technician Answer: B Explanation: Hydraulic control valves are usually actuated by electromechanical relays/solenoids to sequence pump and valve operation.
Question 53. Which of the following is the correct minimum rating for a disconnecting means protecting a 480 V, 400 A elevator feeder? A) 350 A B) 400 A C) 450 A D) 500 A Answer: D Explanation: The disconnect must be rated equal to or greater than the feeder load; a 500 A device meets the requirement. Question 54. The “emergency power transfer switch” (EPTS) for elevator car lighting must activate within how many seconds of a loss of normal power? A) 1 second B) 5 seconds C) 15 seconds D) 30 seconds Answer: B Explanation: Code requires the EPTS to transfer to backup power within 5 seconds to maintain illumination. Question 55. Which of the following statements about “regenerative braking” in elevators is true? A) It reduces the overall efficiency of the system B) It requires a separate battery bank for storage C) It feeds energy back to the building’s utility service D) It is prohibited in residential elevators Answer: C Explanation: Regenerative braking returns excess kinetic energy to the utility grid, improving overall system efficiency. Question 56. When performing a megger insulation test on an elevator motor, the minimum acceptable resistance reading is:
C) Provide backup power during outages D) Control the car’s door speed Answer: A Explanation: Input filters mitigate harmonics generated by VFDs, protecting the building’s electrical system. Question 60. The “pit‑stop switch” must be: A) Normally closed and open only during maintenance B) Normally open and close only when the car is at the bottom floor C) A normally closed device that opens to stop the car in an emergency D) A wireless device that communicates with the controller Answer: C Explanation: The pit‑stop switch is normally closed; opening it cuts power to stop the car in an emergency. Question 61. Which of the following is a required feature of the elevator’s “car‑top operating station” (CTOS) lighting? A) Must be a high‑intensity discharge (HID) lamp only B) Must be a low‑voltage (12 V) LED fixture C) Must provide at least 5 lux illumination on the control panel D) Must be powered by the emergency battery at all times Answer: C Explanation: CTOS lighting must meet minimum illumination levels (≥5 lux) for safe operation. Question 62. According to ASME A17.1, the “door‑interlock” circuit must be designed so that the elevator cannot move when: A) The car is at the top floor only B) Any hoistway or car door is open or not properly latched C) The car is fully loaded D) The emergency alarm is active
Answer: B Explanation: Door‑interlocks ensure the elevator cannot travel unless all doors are securely closed and latched. Question 63. Which of the following is a typical method for testing the “governor overspeed switch” during routine maintenance? A) Measuring the resistance of the switch contacts with a multimeter B) Using a calibrated tachometer to exceed the set‑point speed and verifying activation C) Checking the visual indicator on the controller panel only D) Listening for an audible click when the car stops at the top floor Answer: B Explanation: The overspeed switch is verified by intentionally exceeding its speed set‑point and confirming it trips. Question 64. The NEC requires that all “machine‑room lighting circuits” be provided with a dedicated: A) GFCI receptacle B) Arc‑fault circuit interrupter (AFCI) C) Lighting‑only disconnect switch D) 30‑amp breaker only Answer: C Explanation: A dedicated disconnect for machine‑room lighting is required for safe isolation. Question 65. When installing a new “traveling cable” for a car‑top system, the maximum allowable number of conductors in a single raceway is limited by: A) The cable’s color code B) NEC Table 310.15(B)(3)(a) fill limits C) The height of the hoistway D) The number of car doors Answer: B
