NEIEP |! 820 |! exam |! with |! complete |!
solutions
Why |! 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
