Mississippi Elevators and Escalators Examination

On a traction elevator, what is the primary function of the steel suspension (hoist) ropes?

• ATo detect car overspeed and set the safeties
• BTo carry lighting and control circuits to the moving car
• CTo support and move the car and counterweight by traction at the drive sheave
• DTo absorb the energy of a descending car at the bottom of travel

Four elevator suspension ropes each have a catalog minimum breaking force of 18,000 lb. The maximum static load shared by the set is 8,000 lb. What is the factor of safety of the rope set?

• A2.25
• B4.50
• C8.00
• D9.00

Which finding most clearly requires replacement of an elevator steel suspension rope under ASME A17.1 inspection practice?

• AA light film of approved rope dressing on the outer wires
• BUniform polish of the crown wires with no broken wires and diameter still within limits
• CBroken-wire count, diameter reduction, or corrosion that exceeds the code and manufacture…
• DA slight difference in shine between adjacent ropes after a recent cleaning

What is the principal reason an elevator hoistway must have a pit below the lowest landing?

• ATo store spare interlocks and hydraulic oil drums
• BTo provide space for buffers or bumpers, under-car clearances, and required pit equipment
• CTo serve as the primary passenger emergency exit
• DTo increase the elevator’s rated speed

Under ASME A17.1, the running clearance between the car platform sill and the hoistway edge of the landing sill is generally limited to which range?

• ANot less than 13 mm (0.5 in.) and not more than 32 mm (1.25 in.)
• BNot less than 75 mm (3 in.) and not more than 150 mm (6 in.)
• CAny gap is acceptable if a toe guard is installed
• DExactly 6 mm (0.25 in.) at every landing

Top-of-car (overhead) clearance and runby are provided primarily so that:

• AAdvertising panels can be mounted above the car
• BThe car and counterweight have mechanical space if they overtravel a terminal before buff…
• CPit buffers can be omitted on high-speed cars
• DThe elevator can legally exceed its rated speed

Refuge space on top of an elevator car is required so that:

• AThe main line disconnect can be mounted on the crosshead
• BSpare governor ropes can be coiled on the car top
• CA person on the car top has a protected volume if the car moves toward the overhead struc…
• DThe counterweight frame can rest on the car during construction

Elevator machine rooms and control spaces must generally provide which combination of conditions?

• APublic seating and vending machines for waiting passengers
• BUnrestricted tenant access so anyone can reset the controller
• COpen storage of building paints and solvents
• DRestricted access, adequate lighting, and working clearances for authorized personnel

Why must running clearances be maintained between the elevator car and the hoistway enclosure?

• ATo prevent contact, shearing, and crush hazards while still limiting openings that could…
• BTo allow the car to operate without guide rails
• CTo provide a path for passengers to climb the hoistway
• DTo cool the drive motor by stack effect alone

Bottom car clearance is evaluated with the car on its fully compressed buffers (or equivalent extreme low position) mainly to confirm that:

• AThe drive sheave has maximum traction
• BA required clear volume remains under the car for personnel refuge and equipment
• CDoor open time is reduced
• DThe counterweight mass can be reduced

An excessive horizontal gap between the car door or gate and the hoistway landing door is a concern primarily because it can:

• AIncrease motor horsepower
• BAllow a person, especially a child, to become trapped in the space between the doors
• CAutomatically raise the rated load
• DEliminate the need for interlocks

What does counterweight runby describe on a traction elevator?

• AThe length of the traveling cable loop
• BThe time required to travel between adjacent floors
• CThe diameter of the suspension ropes
• DThe distance the counterweight can travel past a terminal landing before striking its buf…

A permanently installed pit ladder is provided so that:

• AAuthorized persons can enter and leave a deep pit without improvised climbing on equipment
• BPassengers can self-rescue through the pit after every stop
• CThe buffers can be omitted
• DThe pit can be used as a storage loft

Why is storage of materials in an elevator pit prohibited?

• AStored items improve buffer performance
• BStored items can block required clearances, create fire or slip hazards, and interfere wi…
• CThe pit is reserved for passenger luggage
• DCodes require the pit to be filled with loose gravel

When the car top is used as a working platform, which combination is most important for worker safety?

• ACarpet finish, disabled communication, and no lighting
• BA decorative handrail only, with the car left on automatic passenger service
• CA safe standing area, fall protection where required, and positive control of car movement
• DRemoval of the car-top stop switch so the car can be inched from a landing

Hoistway-door unlocking devices are provided so that:

• AAny passenger can open the hoistway at mid-floor for faster boarding
• BInterlocks can be permanently defeated during normal service
• CThe car can run with the landing door open
• DAuthorized persons can open a landing door under controlled conditions for access or resc…

Which National Electrical Code article contains the special requirements for elevators, escalators, moving walks, and similar equipment?

• AArticle 210
• BArticle 430
• CArticle 620
• DArticle 700

The main-line disconnecting means for an elevator driving machine must be which of the following?

• AA pair of twist-on wire connectors inside the controller
• BAn enclosed, externally operable fused motor-circuit switch or circuit breaker, lockable…
• CA toggle switch on the car operating panel labeled “Power”
• DThe building utility transformer fuse only

What is the primary purpose of the elevator traveling cable?

• ATo hoist the car in place of suspension ropes
• BTo serve as the governor rope
• CTo carry power, control, and communication circuits between the hoistway and the moving c…
• DTo replace the need for a counterweight

Why does NEC Article 620 require GFCI protection for 125-volt, 15- and 20-ampere receptacles in elevator pits, hoistways, and machine or control rooms?

• ATo increase available motor horsepower
• BTo allow equipment grounding conductors to be omitted
• CTo provide a passenger phone-charging outlet in the pit
• DTo reduce shock hazard for personnel using portable tools in damp or grounded locations

NEC 620.22 requires the elevator car lights to be supplied by which arrangement?

• AA separate branch circuit that is not disconnected by the driving-machine main-line disco…
• BThe same unfused tap used for the hoist motor
• CA receptacle in the pit daisy-chained to the car fan
• DThe fire-alarm notification circuit

Before performing maintenance on elevator power circuits, the safest practice is to:

• ATurn off only the car fan switch
• BRely solely on the in-car emergency stop button
• COpen the proper disconnect, verify absence of voltage, and apply lockout/tagout
• DShort the motor leads together without isolating the supply

NEC 620.62 selective coordination for elevator disconnects is intended to ensure that:

• AEvery elevator in the building shuts down if any one car faults
• BOnly the overcurrent device serving the faulted elevator opens, so other cars on the same…
• CFuses can be replaced with copper pipe
• DPhase I fire service is automatically disabled

An elevator hoist motor has a nameplate full-load current of 40 A. Using the common 125 percent multiplier applied to motor current for conductor ampacity planning, what minimum conductor ampacity should be used?

• A32 A
• B40 A
• C48 A
• D50 A

Controller cabinets and other elevator equipment enclosures must be grounded and bonded in order to:

• AIncrease contract speed
• BProvide a low-impedance fault path and keep exposed metal near earth potential
• CEliminate the need for overcurrent devices
• DWaterproof the hoistway

Opening the elevator driving-machine main-line disconnect is required to leave which circuits energized?

• AThe hoist motor and machine brake only
• BCar lighting, machine-room or control-space lighting and receptacles, and pit lighting an…
• CAll circuits in the building, including tenant lighting
• DThe fire-pump controller

Which statement best describes wiring permitted in an elevator hoistway?

• AAny building tenant circuit may be routed through the hoistway to save conduit
• BOpen splices without enclosures are preferred
• COnly wiring used in connection with the elevator, plus limited code-permitted exceptions,…
• DHousehold extension cords are an approved permanent method

ASME A17.5, listed among the Mississippi Elevators and Escalators references, addresses which subject?

• AExisting-elevator retrofit scoping only
• BFirefighter radio coverage in high-rise stairs
• CPlumbing fixtures in machine rooms
• DElectrical equipment used on elevators and escalators, including listing and construction…

A single-speed 480-volt, three-phase elevator motor is nameplated 30 A full-load current. If a fuse is selected at 175 percent of FLA for motor-branch short-circuit protection (not to exceed the next standard size if 175 percent is not standard), what is 175 percent of 30 A?

• A30 A
• B37.5 A
• C45 A
• D52.5 A

Machine-room or control-space lighting and the required receptacle must be supplied so that:

• AThey go dark whenever the driving-machine disconnect is opened
• BThey are on a separate branch circuit with a lockable disconnect, remaining available whe…
• CThey are tapped from the traveling cable
• DThey share the fire-alarm notification circuit

If sprinklers are installed in an elevator machine room or hoistway, power to the affected elevator is typically arranged to:

• ARemain on so the car can run through discharging water
• BAutomatically restore as soon as water flow stops, without manual reset
• CBe disconnected by a shunt-trip or equivalent means before water is applied to the equipm…
• DBe controlled only by the in-car emergency stop

When must acceptance inspections and tests of a new elevator installation be performed?

• AOnly after five years of public use
• BOnly if a passenger files a complaint
• CAfter the unit has been painted, regardless of whether safety devices work
• DBefore the elevator is placed in service, to verify conformance with the applicable code

In the A17.1 periodic-test framework, how do Category 1 tests generally differ from Category 5 tests?

• ACategory 1 tests are typically annual no-load or functional checks; Category 5 tests are…
• BCategory 1 tests are only for escalators; Category 5 tests are only for dumbwaiters
• CCategory 5 tests replace all daily maintenance
• DCategory 1 tests require a full-load runaway; Category 5 tests are visual only

During a Category 5 test of Type B car safeties, the accepted method is to:

• AJump out the governor and run the car at contract speed with no observation
• BTrip the governor by hand while the car is running at rated speed with rated load, then c…
• CRemove the governor rope and allow a free fall from the top landing
• DTest only the door operator and skip the safeties

A periodic no-load test of an oil buffer is performed primarily to verify that:

• AThe buffer plunger returns and the buffer can absorb a specified impact without damage or…
• BThe buffer can be used as a car support during rope replacement without other blocking
• CSpring buffers are interchangeable with oil buffers at any speed
• DThe car no longer needs a governor

A traction elevator is rated 200 ft/min. ASME A17.1 requires the governor to be set to trip at not less than 115 percent of rated speed. What is that minimum tripping speed?

• A200 ft/min
• B215 ft/min
• C220 ft/min
• D230 ft/min

How do ASME A17.1 and ASME A17.3 differ in application?

• AA17.1 is the safety code used for new installations (and specified alterations); A17.3 is…
• BA17.3 replaces the NEC for all new wiring
• CA17.1 applies only to dumbwaiters; A17.3 applies only to moving walks
• DThe two documents are interchangeable editions of the same text

The capacity plate in an elevator car is intended to inform users of:

• AThe age of the building
• BThe brand of hydraulic oil
• CThe rated load and, where required, the number of passengers
• DThe PSI examination fee

Inspection operation from the car top is designed so that:

• AThe car runs at contract speed in response to landing calls
• BAnyone in the building can call the car while a mechanic is on top
• CCar speed is limited, car-top controls have priority, and landing calls do not move the c…
• DDoors cycle automatically at every floor to test interlocks

Periodic inspections required by A17.1 are performed to:

• AIncrease the elevator’s rated speed each year
• BWaive all future maintenance
• CTransfer ownership of the equipment to the inspector
• DDetermine whether the installation continues to conform to applicable code requirements a…

A crosshead data plate is mounted on the car structure to provide which information?

• AThe building street address only
• BManufacturer data such as rated load, speed, suspension means, and related design informa…
• CThe names of all passengers who used the car that day
• DThe machine-room thermostat set point

Under ASME A17.1, which change is treated as an alteration rather than ordinary maintenance or repair?

• AReplacing a worn suspension rope with the same size, grade, and construction specified fo…
• BCleaning the pit and replacing a burned-out pit lamp
• CChanging the rated speed or rated load, or installing a different type of driving machine
• DAdjusting brake shoes to restore the original holding capability

ASME A17.2 is best described as:

• AThe National Electrical Code
• BA handbook of plumbing fixtures
• CThe inspector’s guide used with A17.1 for inspection procedures and checklists
• DA fire-alarm signaling standard

A Maintenance Control Program (MCP) under A17.1 Section 8.6 must include which of the following?

• AOnly a verbal understanding between the owner and the mechanic
• BWritten procedures, examinations, and records for maintaining the equipment in compliance
• CA requirement that no records be kept so liability is reduced
• DInstructions to disable all electrical protective devices to reduce callbacks

On a hydraulic elevator, the relief valve is tested to confirm that it:

• AWill bypass fluid and limit system pressure before the piping or cylinder is overpressured
• BIncreases car speed above contract speed
• CReplaces the need for a plunger gripper or safety where those devices are required
• DKeeps the oil at a constant temperature regardless of load

Which equipment is generally permitted inside an elevator hoistway?

• ABuilding water heaters and tenant electrical panels
• BNatural-gas meters and cooking equipment
• COnly machinery and wiring used directly in connection with the elevator, plus limited cod…
• DGeneral refuse chutes that share the same shaft