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MI Elevator Mechanic practice questions

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Question 1Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

Under ASME A17.1/CSA B44, what is the minimum required clearance between the hoistway door sill and the car door sill when the car is at a landing with the doors fully open?

  1. 1/4 in (6 mm)
  2. 1 in (25 mm)
  3. 1/2 in (13 mm) Correct answer.
  4. 3/4 in (19 mm)

Explanation

The code sets a maximum sill-to-sill clearance of 1/2 in (13 mm) at each landing to limit the gap into which passengers or objects could catch a foot or toe. Larger gaps create a tripping and entrapment hazard at the landing threshold.

Question 2Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A hydraulic elevator is being installed in a low-rise building. Which device does A17.1/CSA B44 require to stop the car from descending if the suspension or hydraulic line fails?

  1. A compensating chain tension device
  2. A roller-type guide shoe
  3. A plunger grip or rupture valve Correct answer.
  4. A governor-operated safeties system

Explanation

Hydraulic elevators rely on a rupture valve (or plunger grip) to arrest uncontrolled downward movement when hydraulic pressure is lost or the line breaks. This is the hydraulic equivalent of the mechanical safeties used on traction elevators.

Question 3Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

During a periodic inspection, a mechanic finds the car operating panel's emergency stop switch is missing. Which code requirement does this most directly involve?

  1. Emergency stop switches are required in the car unless the elevator is attended
  2. The switch is only required on freight elevators
  3. The switch is optional on all elevators
  4. The switch must be provided unless the elevator has a Phase II recall Correct answer.

Explanation

A17.1/CSA B44 generally requires an emergency stop switch in the car operating panel, with limited exceptions such as elevators equipped with Phase II emergency recall. The switch allows passengers to stop the car in an emergency.

Question 4Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

What is the minimum required headroom above the car crosshead when the car is at its highest landing, as specified for typical electric elevators under A17.1?

  1. 24 in (610 mm) Correct answer.
  2. 36 in (914 mm)
  3. 18 in (457 mm)
  4. 12 in (305 mm)

Explanation

The code requires at least 24 in (610 mm) of refuge space above the car crosshead or the highest point of the car when it is at the top landing. This space protects technicians who may be on the car top.

Question 5Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

Which document governs the periodic inspection and testing intervals for elevators after they are placed in service?

  1. ASME A17.1/CSA B44
  2. ASME A17.3
  3. ASME A17.5
  4. ASME A17.2 Correct answer.

Explanation

A17.2 covers inspection, testing, and maintenance of elevators and escalators, including the intervals and procedures for periodic inspections. A17.1 is the installation code, while A17.3 addresses existing installations.

Question 6Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

An escalator is being installed in a shopping mall. What is the minimum required clear height above the steps, measured vertically from the step tread to the ceiling or soffit?

  1. 8 ft 0 in (2440 mm)
  2. 6 ft 8 in (2030 mm)
  3. 6 ft 0 in (1830 mm)
  4. 7 ft 0 in (2130 mm) Correct answer.

Explanation

The code requires a minimum clear height of 7 ft 0 in (2130 mm) above any step tread to protect riders from head strikes. This dimension applies along the entire run of the escalator.

Question 7Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A freight elevator uses a counterweight. What is the required maximum clearance between the counterweight and the hoistway enclosure or any obstruction?

  1. 1 in (25 mm)
  2. 2 in (51 mm)
  3. 1/2 in (13 mm)
  4. 3/4 in (19 mm) Correct answer.

Explanation

The code requires a minimum clearance of 3/4 in (19 mm) between the counterweight and any fixed obstruction or hoistway enclosure to prevent contact during travel. This clearance accounts for guide shoe wear and deflection.

Question 8Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

Which of the following is required to be provided at each landing to indicate the direction the elevator will travel next?

  1. A hall position indicator only
  2. A hall lantern or audible signal Correct answer.
  3. A fire recall switch
  4. A car position indicator

Explanation

A17.1/CSA B44 requires a hall lantern or audible signal at each landing to notify waiting passengers of the car's intended direction and arrival. This is a standard accessibility and safety requirement.

Question 9Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A mechanic is testing the door reopening device on a power-operated car door. The device must detect an obstruction in the door opening and cause the door to reopen. According to the code, the reopening device must be capable of detecting a standard test object of what size?

  1. A 6 in (152 mm) diameter rigid sphere
  2. A 2 in (51 mm) diameter rigid sphere Correct answer.
  3. A 1 in (25 mm) diameter rigid sphere
  4. A 4 in (102 mm) diameter rigid sphere

Explanation

The code specifies a 2 in (51 mm) diameter rigid sphere as the test object for door reopening devices on power-operated doors. The device must sense the object and reverse the door before it contacts the obstruction.

Question 10Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

An elevator is equipped with a Phase I emergency recall. When the smoke detector in the elevator lobby activates, what should the elevator do?

  1. Proceed to the alternate recall floor and shut down
  2. Continue normal operation until Phase II is activated
  3. Proceed to the designated recall floor and park with doors open Correct answer.
  4. Remain at the current floor with doors open

Explanation

Upon Phase I lobby smoke detection, the elevator is recalled to the designated level, where it parks with doors open to allow occupants to exit. This removes the elevator from service before smoke reaches the hoistway.

Question 11Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A new traction elevator is being installed with a rated speed of 500 ft/min. What is the minimum required governor tripping speed relative to the rated speed?

  1. Exactly 125% of the rated speed
  2. Not less than 115% of the rated speed Correct answer.
  3. Equal to the rated speed
  4. Not more than 90% of the rated speed

Explanation

The governor must trip at a speed not less than 115% of the rated car speed to allow normal operation while still catching an overspeed condition. The exact trip point is set within a defined range above rated speed.

Question 12Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

During a safety test, the mechanic applies the car safeties. What is the required result for the safeties to be considered acceptable?

  1. The car must stop within 12 in of application
  2. The car must stop only after the governor trips
  3. The car must descend to the pit before stopping
  4. The car must stop without appreciable rebound and hold the load Correct answer.

Explanation

The safeties must stop the car and hold it without appreciable rebound or excessive deceleration that could injure passengers. The test verifies both stopping performance and the ability to sustain the load.

Question 13Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

An escalator is installed with a rise of 20 ft. Which requirement applies to the handrail speed relative to the step speed?

  1. The handrail may travel up to 2% faster than the steps Correct answer.
  2. The handrail must travel at exactly the same speed as the steps
  3. The handrail may travel up to 5% faster than the steps
  4. The handrail may travel at any speed within 10% of the steps

Explanation

The handrail is permitted to travel slightly faster than the steps to keep the hand ahead of the body and prevent a backward fall. The allowable deviation is up to 2% faster than the step speed.

Question 14Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A mechanic is verifying the pit ladder for an elevator. Which condition must the ladder meet under A17.1/CSA B44?

  1. It must be removable to prevent unauthorized access
  2. It must be located outside the hoistway
  3. It must be permanently secured and reach within 12 in of the pit floor Correct answer.
  4. It must be made of wood for electrical isolation

Explanation

The pit ladder must be permanently secured in the hoistway and extend close enough to the pit floor for safe access, typically within 12 in (305 mm). This ensures technicians can enter and exit the pit safely.

Question 15Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

What is the purpose of the car door interlock required by A17.1/CSA B44?

  1. To hold the door open for a set dwell time
  2. To slow the door closing speed near the end of travel
  3. To prevent the car from moving unless the car door is closed and locked Correct answer.
  4. To detect passengers in the door path

Explanation

The car door interlock is an electrical safety device that prevents the elevator from starting or running unless the car door is closed and locked. It protects passengers from being caught between the car and the landing.

Question 16Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

An elevator machine room is being laid out. What is the minimum required clear space in front of the controller for working clearance?

  1. 24 in (610 mm)
  2. 18 in (457 mm)
  3. 30 in (762 mm) Correct answer.
  4. 36 in (914 mm)

Explanation

The code requires a minimum working space of 30 in (762 mm) in front of the controller to allow technicians to safely operate and service the equipment. This clearance supports safe access to live electrical parts.

Question 17Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A hydraulic elevator's plunger is exposed in the pit. What protection does the code require around the plunger?

  1. A pressure relief valve on the plunger
  2. A lockable gate
  3. A guard to prevent contact with the plunger Correct answer.
  4. A warning sign only

Explanation

The code requires a guard around the exposed hydraulic plunger to prevent personnel from contacting the moving plunger and to keep objects from falling into the plunger area. This reduces injury risk in the pit.

Question 18Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A mechanic is checking the clearance between the car and the hoistway enclosure on a new installation. What is the maximum permitted clearance on the sides and top of the car?

  1. 2 in (51 mm)
  2. 1/2 in (13 mm)
  3. 3/4 in (19 mm) Correct answer.
  4. 1 in (25 mm)

Explanation

The code limits the clearance between the car and the hoistway enclosure to 3/4 in (19 mm) to prevent a person from becoming wedged in the gap. Larger clearances increase the risk of entrapment between the car and hoistway.

Question 19Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A building owner wants to add a new elevator to an existing building. Which code applies to the new installation?

  1. ASME A17.3
  2. ASME A17.2
  3. ASME A17.6
  4. ASME A17.1/CSA B44 Correct answer.

Explanation

A17.1/CSA B44 is the safety code for new elevator and escalator installations, so it governs the new elevator. A17.3 applies to existing installations that are being altered or maintained.

Question 20Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

An escalator is being installed in a transit station. What is the required minimum depth of the step tread, measured from the nosing to the next nosing?

  1. 18 in (457 mm)
  2. 20 in (508 mm)
  3. 24 in (610 mm)
  4. 16 in (406 mm) Correct answer.

Explanation

The code specifies a minimum step tread depth of 16 in (406 mm) measured from nosing to nosing, which provides a stable standing surface. This dimension is a key safety parameter for escalator step design.

Question 21Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A mechanic is testing the firefighter's service Phase II operation. Which condition must be met for the elevator to operate in Phase II?

  1. The car must be at the alternate recall floor
  2. The lobby smoke detector must be reset
  3. The hall call buttons must be disabled
  4. The Phase I recall must have completed and the key switch must be in the Phase II position Correct answer.

Explanation

Phase II firefighter service requires Phase I recall to be complete and the firefighter's key switch at the designated landing to be turned to the Phase II position. This gives firefighters manual control of the car.

Question 22Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A traction elevator has a rated speed of 350 ft/min. During a test, the governor trips at 420 ft/min. Is this acceptable?

  1. Yes, because any trip speed above rated speed is acceptable
  2. No, because the governor must trip at rated speed
  3. Yes, because it is within the allowable trip range above rated speed Correct answer.
  4. No, because the trip speed exceeds 115% of rated speed

Explanation

420 ft/min is 120% of the 350 ft/min rated speed, which falls within the permitted governor trip range above 115%. The governor is therefore set acceptably for this installation.

Question 23Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A hydraulic elevator with a rated speed of 150 ft/min is being tested. What is the maximum permitted car speed during the down-direction safety test?

  1. 225 ft/min
  2. 150 ft/min
  3. 172.5 ft/min Correct answer.
  4. 180 ft/min

Explanation

The code limits the down-direction speed during the safety test to 115% of rated speed, which is 172.5 ft/min for a 150 ft/min elevator. This verifies that the rupture valve or grip limits descent to an acceptable rate.

Question 24Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

An elevator is installed with a machine-room-less (MRL) design. Which requirement applies to the machinery space access?

  1. The machinery space must be at least 6 ft high
  2. The machinery space must be located at the top landing
  3. The machinery space must be accessible only to authorized personnel and provided with a lockable door Correct answer.
  4. Access is not required because the machinery is in the hoistway

Explanation

MRL machinery spaces must be secured against unauthorized access and provided with a lockable door or equivalent means. The space must remain accessible to authorized personnel for maintenance and inspection.

Question 25Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A mechanic is evaluating whether an existing elevator must be upgraded to meet current code. Which document governs alterations to existing installations?

  1. ASME A17.1/CSA B44 only
  2. ASME A17.3 Correct answer.
  3. ASME A17.4
  4. ASME A17.2

Explanation

A17.3 establishes safety requirements for existing elevators and escalators, including requirements triggered by alterations. A17.1 governs new installations, while A17.2 covers inspection and testing.

Question 26Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

Under ASME A17.1/CSA B44, what is the minimum required clearance between the car crosshead and the nearest overhead obstruction in the hoistway when the car is at its highest point?

  1. 12 in (305 mm)
  2. 18 in (457 mm) Correct answer.
  3. 36 in (914 mm)
  4. 24 in (610 mm)

Explanation

A17.1/CSA B44 requires a minimum vertical clearance of 18 in (457 mm) between the car crosshead and any overhead obstruction, including the underside of the machine beams or sheave supports, when the car is at its highest position. This headroom protects personnel riding on top of the car and accommodates spring compression during buffer engagement.

Question 27Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A mechanic is verifying the pit depth of a new hydraulic elevator. The code requires the pit to be designed to accommodate which of the following?

  1. Only the counterweight buffer and the pit light
  2. Only the pit light and the pit switch
  3. The car and counterweight buffers, the pit ladder, and access to the pit equipment Correct answer.
  4. Only the car buffer and the pit ladder

Explanation

A17.1/CSA B44 requires the pit to have sufficient depth to accommodate the car and counterweight buffers, the pit ladder, and access to equipment for inspection and maintenance. The pit must also provide the required refuge space below the car when the buffer is fully compressed.

Question 28Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

What is the required minimum height of the car enclosure for a passenger elevator under A17.1/CSA B44?

  1. 7 ft 6 in (2290 mm)
  2. 6 ft 6 in (1980 mm)
  3. 7 ft (2130 mm) Correct answer.
  4. 8 ft (2440 mm)

Explanation

A17.1/CSA B44 requires a minimum clear height of 7 ft (2130 mm) for passenger elevator car enclosures. This dimension ensures adequate headroom for standing passengers and is measured from the car floor to the underside of the car top.

Question 29Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A mechanic is checking the emergency terminal stopping device on a traction elevator. When must this device bring the car to a stop?

  1. Whenever the car passes the top landing level at any speed
  2. Only when the governor trips the safety mechanism
  3. Only when the pit switch is opened
  4. Only when the normal terminal stopping device fails and the car approaches the terminal landing at governed speed Correct answer.

Explanation

The emergency terminal stopping device is a redundant protection that operates if the normal terminal stopping device fails, stopping the car before it reaches the buffers. It is designed to function when the car approaches a terminal landing at rated or governed speed, not during normal operation.

Question 30Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

For a new escalator installation, what is the minimum required horizontal distance between the centerlines of two adjacent escalators installed side by side?

  1. 12 in (305 mm)
  2. 30 in (762 mm)
  3. 18 in (457 mm) Correct answer.
  4. 24 in (610 mm)

Explanation

A17.1/CSA B44 requires a minimum of 18 in (457 mm) between the centerlines of adjacent escalators installed side by side. This spacing provides adequate clearance for the balustrades and handrails of both units while allowing safe passenger movement between them.

Question 31Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A mechanic is testing the escalator comb plate. What is the required maximum clearance between the comb teeth and the step tread surface?

  1. 3/16 in (5 mm) Correct answer.
  2. 1/4 in (6 mm)
  3. 3/8 in (10 mm)
  4. 1/8 in (3 mm)

Explanation

A17.1/CSA B44 requires the clearance between the comb teeth and the step tread surface to be no more than 3/16 in (5 mm). This limit prevents objects from being caught between the comb and the step while still allowing the comb to clear the tread during operation.

Question 32Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

What is the required minimum clear width of a passenger elevator car under A17.1/CSA B44 for a car with a rated load of 2500 lb?

  1. 68 in (1730 mm)
  2. 44 in (1120 mm)
  3. 60 in (1520 mm)
  4. 51 in (1300 mm) Correct answer.

Explanation

A17.1/CSA B44 ties minimum car clear width to rated load. For a 2500 lb rated load, the minimum clear inside width is 51 in (1300 mm), which corresponds to the minimum car area required for that load.

Question 33Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A mechanic is verifying the machine room ventilation for a new traction elevator. What does A17.1/CSA B44 require regarding machine room temperature?

  1. The machine room must be kept between 40 F and 90 F (4 C and 32 C) Correct answer.
  2. The machine room must be kept between 70 F and 120 F (21 C and 49 C)
  3. The machine room must be kept between 60 F and 110 F (16 C and 43 C)
  4. The machine room must be kept between 50 F and 100 F (10 C and 38 C)

Explanation

A17.1/CSA B44 requires the machine room to be maintained between 40 F and 90 F (4 C and 32 C) to protect the machine and controller from condensation, overheating, and component failure. Ventilation or cooling must be provided to hold this range.

Question 34Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A mechanic is inspecting the governor rope on a traction elevator. What is the minimum required breaking strength of the governor rope under A17.1/CSA B44?

  1. Not less than 5 times the static load imposed by the governor rope tension Correct answer.
  2. There is no minimum breaking strength requirement
  3. The same as the suspension ropes
  4. Not less than 10 times the static load imposed by the governor rope tension

Explanation

A17.1/CSA B44 requires the governor rope to have a breaking strength of not less than 5 times the static load imposed on it by the governor rope tension. This margin ensures the rope can reliably trip the governor and apply the safeties.

Question 35Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

During a periodic inspection, a mechanic finds that the car door has a clear opening of 42 in. What is the maximum allowable clear opening for a passenger elevator car door under A17.1/CSA B44?

  1. 36 in (914 mm)
  2. 42 in (1067 mm)
  3. 48 in (1219 mm)
  4. There is no maximum clear opening limit Correct answer.

Explanation

A17.1/CSA B44 sets minimum clear door opening dimensions based on rated load but does not impose a maximum clear opening for passenger car doors. Larger openings are permitted provided the car and door assemblies meet all other structural and safety requirements.

Question 36Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A mechanic is testing the ascending car overspeed protection on a traction elevator equipped with a car safety. What must the device do when the car exceeds the specified overspeed?

  1. Slow the car to rated speed without stopping
  2. Open the main line disconnect
  3. Stop the car by applying the machine brake only
  4. Stop the car by applying the car safeties Correct answer.

Explanation

Ascending car overspeed protection must stop the car by applying the car safeties, not merely the machine brake. This protects against a runaway in the up direction, which the governor and safeties alone would not address.

Question 37Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

What is the required minimum illumination level at the elevator landing and in the car under A17.1/CSA B44?

  1. 2 ft-candles (22 lux)
  2. 10 ft-candles (108 lux)
  3. 5 ft-candles (54 lux) Correct answer.
  4. 1 ft-candle (11 lux)

Explanation

A17.1/CSA B44 requires a minimum of 5 ft-candles (54 lux) at the landing and in the car, measured at the floor and at the car operating panel. This level ensures safe entry, exit, and operation of controls.

Question 38Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A mechanic is verifying the escalator handrail. What is the minimum required height of the handrail above the step tread, measured vertically?

  1. 48 in (1219 mm)
  2. 42 in (1067 mm)
  3. 36 in (914 mm) Correct answer.
  4. 30 in (762 mm)

Explanation

A17.1/CSA B44 requires the handrail to be a minimum of 36 in (914 mm) above the step tread, measured vertically. This height provides a comfortable and safe grip for passengers of varying stature.

Question 39Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A new elevator is being installed with a rated speed of 200 ft/min. What is the maximum permitted governor trip speed under A17.1/CSA B44?

  1. 125% of rated speed
  2. 140% of rated speed Correct answer.
  3. 150% of rated speed
  4. 175% of rated speed

Explanation

For elevators with a rated speed of 200 ft/min or less, A17.1/CSA B44 permits the governor trip speed to be up to 140% of rated speed. This tolerance accounts for governor setting and rope stretch while ensuring the safeties apply before the car reaches an unsafe speed.

Question 40Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A mechanic is checking the pit access ladder in a new elevator installation. What is the required maximum distance between rungs?

  1. 18 in (457 mm)
  2. 16 in (406 mm)
  3. 10 in (254 mm)
  4. 12 in (305 mm) Correct answer.

Explanation

A17.1/CSA B44 requires pit ladder rungs to be spaced no more than 12 in (305 mm) on center. This spacing provides a safe and consistent climbing rhythm for maintenance personnel entering and exiting the pit.

Question 41Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A mechanic is testing the firefighter's service Phase I recall. When the keyed switch is turned to the 'ON' position, what must happen?

  1. The car continues normal operation until a smoke detector activates
  2. The car returns to the designated landing and parks with doors open Correct answer.
  3. The car immediately stops and the doors open at the current floor
  4. The car moves to the top landing and shuts down

Explanation

Turning the Phase I keyed switch to 'ON' initiates a recall that returns the car nonstop to the designated landing, where it parks with doors open for firefighter use. The car ignores car calls during this recall.

Question 42Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

What is the required minimum depth of the escalator step, measured from the front of one step to the front of the next, under A17.1/CSA B44?

  1. 24 in (610 mm)
  2. 16 in (406 mm) Correct answer.
  3. 14 in (356 mm)
  4. 18 in (457 mm)

Explanation

A17.1/CSA B44 requires the escalator step depth to be a minimum of 16 in (406 mm), measured from the front of one step to the front of the next. This dimension provides adequate standing area for passengers.

Question 43Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A mechanic is verifying the clearance between the escalator skirt panel and the step tread. What is the required maximum clearance?

  1. 1/8 in (3 mm) Correct answer.
  2. 1/4 in (6 mm)
  3. 3/8 in (10 mm)
  4. 3/16 in (5 mm)

Explanation

A17.1/CSA B44 requires the clearance between the skirt panel and the step tread to be no more than 1/8 in (3 mm) to prevent objects and clothing from being drawn into the gap. The skirt panel must also be designed to deflect rather than trap.

Question 44Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

What is the required minimum number of suspension ropes for a traction elevator under A17.1/CSA B44?

  1. Two
  2. Six
  3. Four
  4. Three Correct answer.

Explanation

A17.1/CSA B44 requires at least three suspension ropes for a traction elevator. Multiple ropes provide redundancy so that the failure of one rope does not cause the car to fall.

Question 45Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A mechanic is testing the hydraulic elevator relief valve. At what pressure must the relief valve begin to open?

  1. At not more than 125% of the full-load pressure Correct answer.
  2. At the full-load pressure of the cylinder
  3. At not more than 200% of the full-load pressure
  4. At not more than 150% of the full-load pressure

Explanation

A17.1/CSA B44 requires the relief valve to open at not more than 125% of the full-load pressure of the cylinder. This setting protects the cylinder and piping from overpressure while allowing normal operation at full load.

Question 46Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A mechanic is checking the car top railing on a new installation. What is the required minimum height of the railing above the car top?

  1. 42 in (1067 mm) Correct answer.
  2. 30 in (762 mm)
  3. 24 in (610 mm)
  4. 48 in (1219 mm)

Explanation

A17.1/CSA B44 requires a car top railing to be at least 42 in (1067 mm) high above the car top when a railing is provided or required. This height helps prevent personnel from falling off the car top during maintenance.

Question 47Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A mechanic is verifying the stopping distance of an escalator. What is the maximum permitted stopping distance for an escalator with a rise of 20 ft under A17.1/CSA B44?

  1. 50 in (1270 mm)
  2. 20 in (508 mm)
  3. 40 in (1016 mm) Correct answer.
  4. 30 in (762 mm)

Explanation

A17.1/CSA B44 limits escalator stopping distance based on rise. For a 20 ft rise, the maximum permitted stopping distance is 40 in (1016 mm), ensuring the escalator stops promptly without excessive passenger jostling.

Question 48Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

What does A17.1/CSA B44 require for the emergency communication system in a passenger elevator?

  1. A flashing light in the car only
  2. A two-way voice communication means between the car and a designated location Correct answer.
  3. A telephone in the machine room only
  4. A one-way audible alarm in the car

Explanation

A17.1/CSA B44 requires a two-way voice communication means between the car and a designated location that is staffed or monitored. This allows trapped passengers to request assistance and be reassured during an entrapment.

Question 49Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A mechanic is checking the counterweight safety on a traction elevator. Under what condition is a counterweight safety required?

  1. When the counterweight is not provided with a governor and the car is not provided with a safety Correct answer.
  2. Only when the elevator is hydraulic
  3. When the elevator is installed in a building over 100 ft tall
  4. Only when the counterweight is suspended by a single rope

Explanation

A17.1/CSA B44 requires a counterweight safety when the counterweight is not provided with a governor and the car is not provided with a safety. The safety protects against counterweight runaway if the suspension ropes fail.

Question 50Elevator and Escalator Code Requirements (ASME A17.1/CSA B44)

A mechanic is inspecting the door operator on a power-operated car door. What is the required maximum kinetic energy of the closing door under A17.1/CSA B44?

  1. 2.5 ft-lb Correct answer.
  2. 10.0 ft-lb
  3. 5.0 ft-lb
  4. 1.0 ft-lb

Explanation

A17.1/CSA B44 limits the kinetic energy of a closing power-operated car door to 2.5 ft-lb (3.4 J) to reduce injury risk. If the limit is exceeded, the door reopening device must be capable of stopping and reopening the door.