NEIEP 820 questions with accurate answers 2024/2025

NEIEP 820Why are frequent inspections of line starter contractors necessary? - correct answer High current causes contact arcing. During hydraulic pump motor starting which of the following is true? - correct answer Line current is high In order to take advantage of wye-delta starting for a pump unit what is required? - correct answer Two line starters Why is it important to only operate line starters with their covers in the proper location? - correct answer To prevent flashover between contacts What is the operation quality of a soft start converter that prevents voltage sag and dimming of lights in a building often associated with hydro pump starting? - correct answer Starting current is maintained at a preset rate. What is a special requirement for hydraulic elevator systems that use a flexible line installed in high pressure portions of the system? - correct answer Replacement at six-year intervals Of the following items which has the greatest effect on the leveling accuracy of a hydraulic elevator? - correct answer Oil temperature Which of the following statements best describes a proper maintenance operation for hydraulic pump belts? - correct answer A downward force with one finger should deflect a belt about 1/64 of an inch of belt span. Which of the following items is NOT a maintenance procedure required for a hydraulic elevator installation? - correct answer Be certain the port to atmosphere is not plugged and drained and refilled if water is suspected.