Arizona ROC CR-12 Elevators Examination

Under ASME A17.1/CSA B44, which sensing device automatically initiates Phase I Emergency Recall Operation when activated in the elevator lobby, machine room, or hoistway?

• AWater flow switch from the fire sprinkler system
• BPhase-reversal relay in the controller
• CSmoke detector or designated fire alarm initiating device (FAID)
• DHigh-temperature thermal cutout on the main drive motor

What is the maximum allowable kinetic energy of an automatic elevator door system and its rigid mechanical linkages during normal closing according to ASME A17.1?

• A2.5 ft-lbf (3.4 J)
• B7.0 ft-lbf (9.5 J)
• C15.0 ft-lbf (20.3 J)
• D30.0 ft-lbf (40.7 J)

According to ASME A17.1, what is the maximum static closing force permitted for power-operated horizontally sliding elevator doors when obstructed in the middle third of door travel?

• A15 lbf (67 N)
• B30 lbf (133 N)
• C50 lbf (222 N)
• D75 lbf (334 N)

Which type of car safety device is required by ASME A17.1 for traction elevators operating at rated speeds greater than 150 ft/min (0.75 m/s)?

• AType A safety
• BType B safety
• CType C safety
• DInstantaneous wedge-clamp safety without buffer

Per ASME A17.1, a car speed governor for a traction elevator must trip at a minimum speed of what percentage of the car's rated speed?

• A105%
• B115%
• C125%
• D140%

What is the maximum rated car speed for which solid spring buffers are permitted to be used in an elevator pit under ASME A17.1?

• A100 ft/min (0.50 m/s)
• B200 ft/min (1.00 m/s)
• C350 ft/min (1.75 m/s)
• D500 ft/min (2.50 m/s)

An elevator has a rated speed of 500 ft/min. According to ASME A17.1, oil buffers must be designed so that the minimum stroke is based on what condition?

• A115% of contract speed with a retardation not exceeding 1.0g
• B115% of contract speed with average retardation not exceeding 32.2 ft/s² (1.0g)
• C100% of contract speed with peak retardation of 5.0g
• D125% of contract speed with no retardation limit

Under ASME A17.6 / ASME A17.1, suspension steel wire ropes must be replaced if nominal rope diameter is reduced below what maximum percentage?

• A2.0%
• B6.25% (or 1/32 to 1/16 in depending on nominal size)
• C12.5%
• D20.0%

For standard 6x19 wire suspension rope on a traction elevator, what is the maximum number of broken crown wires permitted in one rope lay length before replacement is required under ASME A17.6?

• A6 randomly distributed broken crown wires
• B12 randomly distributed broken crown wires
• C18 randomly distributed broken crown wires
• D24 randomly distributed broken crown wires

ASME A17.1 Section 2.27.3 requires the Phase I Firefighters' Emergency Recall key switch at the designated landing to be located at what height above the floor?

• ABetween 36 in (915 mm) and 48 in (1220 mm)
• BBetween 48 in (1220 mm) and 72 in (1830 mm)
• CBetween 72 in (1830 mm) and 84 in (2130 mm)
• DAt exactly 60 in (1520 mm) with no tolerance

When operating an elevator under Phase II Emergency In-Car Operation, turning the three-position key switch to the 'HOLD' position causes which car behavior?

• AThe car automatically returns to the designated recall floor with doors open
• BThe car remains at its current floor, doors remain open (or stop moving), and call button…
• CThe car immediately moves to the top landing at contract speed
• DThe car doors automatically close and lock until Phase I is reset

Per ASME A17.1 Section 2.4.4, what is the minimum vertical clearance required for a refuge space on top of an elevator car enclosure when the car is at its maximum upward movement?

• A24 in (610 mm)
• B36 in (915 mm)
• C43 in (1100 mm)
• D60 in (1520 mm)

ASME A17.1 Section 2.11.1.4 mandates that hoistway door unlocking devices (unlatching key holes) shall be located at what maximum height above the landing sill?

• A5 ft 0 in (1520 mm)
• B6 ft 11 in (2110 mm)
• C8 ft 0 in (2440 mm)
• D10 ft 0 in (3050 mm)

What is the minimum counterweight runby specified by ASME A17.1 for an elevator utilizing oil buffers?

• A2 in (50 mm)
• B6 in (150 mm)
• C18 in (450 mm)
• D36 in (915 mm)

According to ASME A17.1 Section 2.14.7.1, what is the minimum illumination level required at the floor threshold of a passenger elevator car?

• A1 foot-candle (11 lx)
• B5 foot-candles (54 lx)
• C19 foot-candles (200 lx)
• D50 foot-candles (538 lx)

When standby (emergency) power is supplied to a group of traction elevators, ASME A17.1 Section 2.27.2 requires the system to be capable of which operation?

• AOperating all elevators simultaneously at 150% rated speed
• BSequentially lowering each car to a designated landing, opening doors, and then operating…
• CLocking all elevator doors closed until utility power is completely restored
• DBypassing all hoistway interlocks automatically to save generator fuel

ASME A17.1 Section 2.14.2.3 requires natural ventilation openings in an elevator car enclosure (without forced ventilation) to equal what minimum percentage of the inside car floor area?

• A1.0%
• B3.5%
• C7.0%
• D10.0%

What is the primary operational difference under ASME A17.1 between a normal terminal stopping device and a final terminal stopping device?

• ANormal limits trip the car safety; final limits trip the governor
• BNormal limits slow down and stop the car automatically at terminal landings; final limits…
• CNormal limits are mechanical switches; final limits are software parameters in the microp…
• DNormal limits activate Phase I fire recall; final limits sound the pit alarm

Under ASME A17.1 and standard building codes, what ambient temperature range must be maintained in an elevator machine room to protect solid-state controller equipment?

• A32°F to 120°F (0°C to 49°C)
• B55°F to 90°F (13°C to 32°C)
• C70°F to 105°F (21°C to 41°C)
• DBelow 40°F (4°C) at all times

According to the International Building Code (IBC) and ASME A17.1, elevator hoistways connecting four or more stories must have a fire-resistance rating of not less than how many hours?

• A1 hour
• B2 hours
• C3 hours
• D4 hours

If a smoke detector located in the main designated elevator lobby initiates a Phase I recall, to which floor must the elevator automatically recall under ASME A17.1 Section 2.27.3.2.3?

• AThe main designated recall floor
• BThe designated alternate recall floor
• CThe lowest basement floor
• DThe top floor machine room landing

ASME A17.1 Section 2.14.7.1.3 requires the emergency car lighting and alarm signal battery power supply to maintain illumination and alarm operation for a minimum duration of how many hours?

• A1 hour
• B2 hours
• C4 hours
• D8 hours

According to ASME A17.1 Section 2.11.10.2, what is the maximum allowable horizontal clearance between the car platform sill and the hoistway landing sill?

• A0.75 in (19 mm)
• B1.50 in (38 mm)
• C2.25 in (57 mm)
• D3.00 in (76 mm)

Under ASME A17.1 Section 2.3.2, counterweight guards in elevator pits must extend from not more than 12 in (305 mm) above the pit floor to a minimum height of:

• A5 ft 0 in (1520 mm)
• B6 ft 0 in (1830 mm)
• C7 ft 0 in (2130 mm)
• D8 ft 6 in (2590 mm)

What is the maximum permissible static deflection limit for an elevator car frame crosshead or safety plank under maximum static contract load per ASME A17.1?

• A1/250 of the span
• B1/500 of the span
• C1/960 of the span (approx. 1/1000 of span)
• D1/2000 of the span

According to NEC Section 620.51, where must the main disconnecting means for an elevator driving machine motor be located?

• AInside the hoistway on top of the elevator car
• BIn the machine room, visible from the motor controller, and readily accessible to qualifi…
• CAt the main building service entrance electrical room only
• DInside the elevator car behind the operating panel

NEC 620.22(A) requires a separate branch circuit to supply which specific elevator car loads?

• ACar lighting, auxiliary lighting, control circuits, and ventilation fans
• BElevator door operator motor and main hoist motor only
• CMachine room air conditioning and pit sump pump
• DFire alarm strobe lights and building emergency speakers

According to NEC 620.85, Ground-Fault Circuit-Interrupter (GFCI) protection is mandatory for which of the following 125-volt, single-phase, 15A and 20A receptacles?

• AReceptacles installed in machine rooms, machinery spaces, pits, and on car tops
• BReceptacles inside the passenger car operating panel only
• CFeeder disconnect receptacles serving 480V 3-phase drive motors
• DOnly outdoor escalator lighting circuits

Under NEC Table 620.14, what is the demand factor used to size feeder conductors supplying 10 elevators on a single feeder?

• A1.00
• B0.85
• C0.72
• D0.50

Per NEC 620.21 and 620.41, what is the maximum unsupported vertical length allowed for a flexible traveling cable without an internal steel supporting core?

• A30 ft (9 m)
• B100 ft (30 m)
• C200 ft (60 m)
• D300 ft (90 m)

Under NEC 620.53, the disconnecting means for the elevator car light, receptacle, and ventilation branch circuit must meet which location and locking requirement?

• ALocated inside the car behind a key-locked panel
• BLocated in the machine room / control room and lockable in the open position
• CLocated at the main building emergency generator output breaker panel
• DLocated in the elevator pit next to the pit ladder

According to NEC 620.12, what is the minimum conductor size permitted for operating control and signal circuits in traveling cables?

• A14 AWG
• B18 AWG
• C20 AWG
• D24 AWG

What is the minimum size copper conductor permitted by NEC 620.12 for elevator car lighting branch circuits inside flexible traveling cables?

• A14 AWG
• B16 AWG
• C18 AWG
• D20 AWG

Under NEC 620.13, motor circuit conductors supplying a single continuous-duty elevator motor must have an ampacity of not less than what percentage of the motor nameplate current rating?

• A100%
• B115%
• C125%
• D140%

Which NEC article governs the selection of short-circuit and ground-fault protection devices for elevator motor branch circuits referenced in NEC 620.61?

• ANEC Article 240
• BNEC Article 430
• CNEC Article 500
• DNEC Article 700

According to NEC 620.37(A), electrical wiring, raceways, and cables are permitted inside an elevator hoistway under what strict condition?

• AThey may serve any building electrical load provided they are enclosed in rigid metal con…
• BThey must strictly serve equipment directly associated with the elevator system
• CThey can serve tenant lighting loads if installed in EMT
• DThey are permitted without restriction if fire-rated cables are used

Per NEC 620.51(A), the main elevator disconnect switch must have an ampere rating not less than what value?

• A115% of the calculated branch-circuit load
• B125% of the sum of the full-load currents of all motors plus other connected loads
• CThe ampacity requirement of the branch-circuit conductors as determined by NEC 620.13 and…
• DFixed 100-amp rating regardless of load

NEC 620.81 requires all exposed metal enclosures, raceways, car frames, and controller cabinets to be bonded to which conductor?

• ANeutral grounded circuit conductor (N)
• BEquipment grounding conductor (EGC)
• CBuilding lightning protection down conductor
• DIsolated ungrounded signal shield

According to NEC 620.32, what is the maximum allowable conductor fill percentage for auxiliary gutters (wireways) used in elevator control and machinery spaces?

• A20%
• B40%
• C50%
• D75%

Per NEC 620.21(A)(1), what is the maximum length of flexible metal conduit (FMC) or liquidtight flexible metal conduit (LFMC) allowed between control cabinets and driving machines?

• A3 ft (0.9 m)
• B6 ft (1.8 m)
• C10 ft (3.0 m)
• D15 ft (4.5 m)

Under NEC 110.26 and Article 620, what is the minimum working depth clearance required in front of a 480V elevator controller panel with live parts on one side and grounded building steel on the opposite side (Condition 2)?

• A30 in (762 mm)
• B36 in (914 mm)
• C42 in (1066 mm)
• D48 in (1219 mm)

NEC 620.55 requires elevator emergency/standby power disconnect switches to be equipped with auxiliary contacts for what primary purpose?

• ATo signal the building automation system to sound an audible fire horn
• BTo pre-warn the elevator control system before main power transfer occurs, allowing order…
• CTo automatically trip the pit sump pump breaker
• DTo energize emergency car lighting when main power is manually disconnected

Under NEC 620.23(A), what type of branch circuit is required to supply machine room / control room lighting and convenience receptacles?

• AShared branch circuit combined with pit lighting
• BDedicated 20-ampere branch circuit supplying only machine room lighting and receptacles
• CFeeder circuit tapped directly from the main elevator drive motor disconnect
• DClass 2 low-voltage signal circuit

What flame-retardant and moisture-resistant rating designation is standard for elevator traveling cables per NEC Article 620 and UL 62?

• AType NM-B
• BType ETT or Type ET
• CType THHN/THWN
• DType USE-2