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

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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 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, 1/8 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 It is necessary to run a ground wire to the car sling of a hydraulic elevator to prevent what? - ✔✔electrical shock What condition will trip a GFCI? - ✔✔If a supply lead is shorted to ground When using a beam clamp, a good rule of thumb is to never load the lower flange to more than __________ % of the load which could be handled by the full area of the beam. - ✔✔50 1 lb equals how many Kg? - ✔✔.4536 2,000 Kg = __________ lbs - ✔✔4,409 What is the best rigging equipment to use for controlling horizontal movement of the escalator as it is being lifted into position in the wellway? - ✔✔lever hoist What is the most common shackle used? - ✔✔Screw pin bow type The angle of inclination can __________ 30 degrees by a maximum of __________ degrees at the installation site. - ✔✔exceed; 1 The maximum distance between anti-slide devices on an escalator is what? - ✔✔6' What happens if a step of an escalator drops more than 1/8"? - ✔✔The escalator stops automatically Combplate teeth must be set to ensure the teeth are always __________ the __________ surface of the treads. - ✔✔below; upper What is the maximum allowable gap between the skirt panels on an escalator and the adjacent step tread? - ✔✔3/16" 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