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NEIEP 800 Final Exam | 100% Correct Answers | Verified | Latest 2024 Version, Exams of Engineering

A study guide or exam preparation material for the neiep 800 final exam. It covers a wide range of topics related to elevators, including hydro elevators, power units, welding, escalators, moving walks, lula (limited use/limited application) elevators, chairlifts, and platform lifts. Detailed information and answers to various questions, likely to help students prepare for the final exam. The comprehensive coverage of elevator-related concepts and the step-by-step explanations make this document a valuable resource for anyone studying or working in the elevator industry.

Typology: Exams

2023/2024

Available from 08/21/2024

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NEIEP 800 Final Exam | 100% Correct
Answers | Verified | Latest 2024 Version
Hydro elevators in low rise applications do not need an _____ _____ room. - ✔✔overhead machine
Some advantages of hydros are lower equipment and building construction costs because the load of a
hydro is carried to the _____ where as the load of a traction car is carried by the _____ _____. -
✔✔ground, building structure
When drilling the jack hole, the only proper way to determine if the hole is plumb is to remove the drill
stem and bit and use a _____ _____. - ✔✔Spider Bob
To plumb the hole, a spider bob is attached to a length of piano wire suspended from as near as possible
to the top of the _____ or from a fixed point on the drill rig. - ✔✔Hoistway
When welding a joint, lay _____ inch tack welds _____ degrees apart, shift it 90 degrees and lay two
more 1 inch tack welds 180 degrees apart. - ✔✔1, 180
On power units having the motor beneath the tank, the pump may be either _____ driven or _____
coupled. - ✔✔belt, direct
The purpose of the _____/_____ is to silence the effect of any pulsations in the pump output and should
be as close to the pump as possible. - ✔✔silencer, muffler
On Bolsters/Bolster Assembly, the plunger is fastened to the _____ _____ which is then mounted to the
center of the Bolster Assembly. - ✔✔platen plate
With wye-delta, reduced current starting is accomplished without the need for _____. - ✔✔resistors
_____ run buttons should run the platform and sling at leveling speeds only. - ✔✔Temporary
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Download NEIEP 800 Final Exam | 100% Correct Answers | Verified | Latest 2024 Version and more Exams Engineering in PDF only on Docsity!

NEIEP 800 Final Exam | 100% Correct

Answers | Verified | Latest 2024 Version

Hydro elevators in low rise applications do not need an _____ _____ room. - ✔✔overhead machine Some advantages of hydros are lower equipment and building construction costs because the load of a hydro is carried to the _____ where as the load of a traction car is carried by the _____ _____. - ✔✔ground, building structure When drilling the jack hole, the only proper way to determine if the hole is plumb is to remove the drill stem and bit and use a _____ _____. - ✔✔Spider Bob To plumb the hole, a spider bob is attached to a length of piano wire suspended from as near as possible to the top of the _____ or from a fixed point on the drill rig. - ✔✔Hoistway When welding a joint, lay _____ inch tack welds _____ degrees apart, shift it 90 degrees and lay two more 1 inch tack welds 180 degrees apart. - ✔✔1, 180 On power units having the motor beneath the tank, the pump may be either _____ driven or _____ coupled. - ✔✔belt, direct The purpose of the _____/_____ is to silence the effect of any pulsations in the pump output and should be as close to the pump as possible. - ✔✔silencer, muffler On Bolsters/Bolster Assembly, the plunger is fastened to the _____ _____ which is then mounted to the center of the Bolster Assembly. - ✔✔platen plate With wye-delta, reduced current starting is accomplished without the need for _____. - ✔✔resistors _____ run buttons should run the platform and sling at leveling speeds only. - ✔✔Temporary

A _____ _____ consists of a piston held closed by an adjustable spring and must open at a certain pressure to prevent any further increase in pressure. - ✔✔relief valve A _____ lowering valve allows the car to be lowered at a speed not exceeding 20fpm in case of power failure. - ✔✔manual As the oil temperature changes, the _____ will change as well and will effect the performance, more specifically, the leveling and approach of the elevator. - ✔✔viscosity Be sure wellways are properly _____ to avoid accidental injury to you, your team or anyone working outside of our industry. - ✔✔barricaded Barricades around the wellway must be _____ inches high and be capable of withstanding a _____lb force. - ✔✔42, 200 A _____ protects you if you come in contact with a hot wire or component and then come in contact with ground. It opens the circuit and diverts the supplied current to ground. - ✔✔GFCI A _____ _____ is useful for horizontal (side-to-side) pulling of the truss while being lowered into the wellway. - ✔✔lever hoist Code specifies the use of anti-slide devices if the outer edge of the deck is greater than _____ inches from the center line of the handrail. - ✔✔ 12 (True/False) Anti-slide devices must be less than 3/4" in height, have no sharp corners or edges and fastened to the deck no closer than 4 inches from the handrail and spaced no greater than 6ft apart. - ✔✔True Sometimes referred to as sag switches, _____ _____ switches are located within the step band of both upper and lower truss assemblies and function to prevent a step that is sagging by more than _____ inch. - ✔✔step level, 1/

With chairlifts, there needs to be at least _____ inches of free passage width remaining on the stairway, per code. If the lift has a seat, it can be measured with the seat in the folded position. - ✔✔ 20 The _____ _____ short radius spiral is a type of short radius spiral. - ✔✔double 90 The capacity of a chairlift shall not exceed two persons. The rated load shall not be less than _____ lbs for a one seat lift and not less than _____ lbs for a two seat lift. The speed shall not exceed _____ fpm. - ✔✔250, 400, 40 (True/False) With platform lifts, codes require a handrail between 1 and 3 inches in diameter, 1 1/ inches minimum from the wall and 34 to 38 inches above the stair tread nosing. - ✔✔True Per code, where the actuation of the safeties is by a governor, the safety shall be set at a maximum speed of _____ fpm - ✔✔ 75 With platform lifts, the _____ is referring to the space occupied by the lifts' travel whether it is enclosed, partially enclosed or open construction. - ✔✔Runway Routine tests and inspections are to be made every _____ months for LULA's in buildings other than private residences and every _____ for private residences. - ✔✔6, year What is the minimum height of a barricade in place around an open wellway? - ✔✔42" What is the maximum angle of inclination for moving walks? - ✔✔12 degrees The major advantage of a hydraulic elevator is that it __________ _________ building structural support.

  • ✔✔requires less What would be the effect of increasing the size of the oil line if all other elements in a hydraulic elevator system remain the same? - ✔✔Rate of flow is increased

A __________ __________ is used to check a jack hole for plumb. - ✔✔spider bob What is the operating pressure of a hydraulic elevator with a gross weight of 1500 pounds and a plunger area of 15 square inches? - ✔✔100 psi One gallon equals __________ cubic inches. - ✔✔ 231 Why is it important to follow a welding procedure using a sequence of short welds on opposite sides of the cylinder? - ✔✔To prevent warping the cylinder If all other elements in a hydraulic elevator system remain the same, what would be the effect of reducing the diameter of the plunger? - ✔✔Higher system pressure How do you prevent rusting of the plunger if the jack unit is installed in the well hole long before the elevator will be completed? - ✔✔Fill it with oil (True/False)The pressure relief valve is operated electronically. - ✔✔False What prevents the plunger from leaving the cylinder? - ✔✔The stop ring The advantage of wye-delta starting is what? - ✔✔Starting current is lower A __________ cushions pulsations in the oil caused by the pump. - ✔✔silencer You can lower a hydraulic elevator without power by using the __________ __________ __________. - ✔✔manual lowering valve The __________ __________ assembly supports the platform of a hydraulic elevator. - ✔✔bolster channel

Where is the tensioning device located in a belted moving walkway? - ✔✔Tail end Moving walk overspeed switches must switch at no more than __________% the rated speed. - ✔✔ 20 What is the maximum rise of a LULA? - ✔✔25' At what percentage of the rated speed must the overspeed valve of a hydraulic LULA stop the car? - ✔✔110%-140% LULA car door switches are required to operate at no more than __________ inches from full closed. - ✔✔ 2 A non-removable means must be provided to prevent a LULA's car downward movement at a height of ___________ to __________ inches above the pit floor. - ✔✔35; 79 The maximum platform area for a residential elevator is __________ sq. ft.. - ✔✔ 15 What is the least amount of free passage width required on the stairway for a chairlift? - ✔✔20" The speed as measured along the incline of a chairlift shall not exceed __________. - ✔✔40 ft/min The handrail height for a residential platform lift must be between __________ to __________ inches above the stair tread nosing. - ✔✔34; 38 For a residential platform lift the governor shall set at a maximum speed of __________. - ✔✔75 fpm What we would normally refer to as a hoistway or hatchway in elevator terms is called a __________ when discussing platform lifts. - ✔✔runway

Routine periodic tests and inspections are to be made at intervals no longer than __________ for LULA's in buildings other than private residences and no longer than __________ for private residences. - ✔✔ 6 months; 1 year ANSI A10.4 may be used for a Rack and Pinion installation when it is used as a what? - ✔✔Personnel lift during construction (True/False) The frame of a Rack and Pinion elevator is similar to a traditional elevator car sling. - ✔✔True Spacing of tower wall ties generally fall between __________ to __________ feet. - ✔✔10; 30 The typical maximum speed for R&P hoists is __________. - ✔✔300 fpm Rack sections for Rack and Pinion hoists are aligned by doing what? - ✔✔Placing roll pins in the ends Changes in the viscosity of the oil in a hydraulic elevator will mainly effect the __________ and __________ of the elevator. - ✔✔leveling; approach If a hydraulic elevator trips its low oil timer what should you check if the oil level is good? - ✔✔pump belts Submersible pumps are always __________ __________ , conventional pumps are usually belt driven. - ✔✔direct coupled The car must run at __________ speed only when using temporary run buttons. - ✔✔leveling A __________ can be caused if the casing is welded crooked or drilling of the hole goes off center. - ✔✔dogleg In a hydraulic system pressure= - ✔✔Force/area