NEIEP 800 FINAL EXAM REVIEW WITH 100% CORRECT ANSWERS 2023/2024

What is the minimum height of barricade in place around an open wellway? - Correct Answer-42 inches What is the maximum angle of inclination for moving walks? - Correct Answer-12 degrees What is the major advantage of a hydraulic elevator? - Correct Answer-Requires less building structural suppor t If all other elements in a hydro elevator remain the same, what would be the effect of increasing the size of the oil line? - Correct Answer-Rate of flow is reduced What tool is used to check a jack hole for plumb? - Correct Answer-Spider bob What is the operating pressure of a hydro elevator with a gross weight of 2500lbs and a plunger area of 20 square in? - Correct Answer-125psi (2500/20) An oil reservoir is 22in long and 24in wide, how many gallons of oil will it take to fill it to a depth of 18in? - Correct Answer-42gal (22x24x18 = 9504) (9504/231= 41.14) Why is it important to follow a welding procedure using a sequence of short welds on opposite sides of the cylinder? - Correct Answer-To prevent warping of cylinder If all other elements of a hydro elevator remain the same, what would be the effect of increasing the diameter of the plunger? - Correct Answer-System pressure would be reduced If the jack unit is installed in the well hole long before the elevator will be completed, how do you prevent rusting of the plunger? - Correct Answer-Fill with oi l Which of the following valves is not operated electrically? - Correct Answer-Pressure relief valve What device prevents the plunger from leaving the jack assembly? - Correct Answer- The stop ring What is the advantage of wye-delta starting? - Correct Answer-Starting current is lowered What device cushions pulsations in the oil caused by the pump? - Correct Answer- Silencer How can you lower a hydro elevator without electrical power? - Correct Answer-With manual lowering valve What is the assembly called that supports the platform of a hydro elevator? - Correct Answer-Bolster channels Why is it necessary to run a ground wire to the car sling of a hydro elevator? - Correct Answer-To prevent electrical shock Under what conditions would a GFCI remove power to a circuit? - Correct Answer- When a worker comes in contact with the supply lead and return wires What is the max load cap of a fixed 10" X 4 ¾" beam weighing25.4lbs per linear foot that spans 10' when using a beam clamp? - Correct Answer-8000 pounds An escalator arrives on site and needs to be lifted from a flat bed trailer and the value of 4000Kg is stamped on the side of the escalator truss, what is the standard weight? Correct Answer-8800 pounds