Bull rope - ANSWERS-Endless looped rope powering early elevators
Floor stop accuracy - ANSWERS-Improvement in AC motor elevators over DC
American Society of Mechanical Engineers - ANSWERS-Regulatory body for US elevator
operations
Straight line wiring diagram - ANSWERS-Uses lines and symbols for electrical circuits
VOM multimeter - ANSWERS-Volt, ohms, and milliampere measuring device
Capacitor - ANSWERS-Stores and discharges electrical energy
10k ohm resistor - ANSWERS-Safely discharges electrical energy from a capacitor
Selective collective control - ANSWERS-Elevator system not changing direction until highest call
answered
Contact wipe - ANSWERS-Rubbing motion to keep relay contacts clean
Magnetic field - ANSWERS-Generated by relay coil to pull armature
Plug type relay - ANSWERS-Most common relay design
, Electrical interlock - ANSWERS-Prevents multiple relays from energizing simultaneously
Diode - ANSWERS-Allows current flow in one direction
Dashpots - ANSWERS-Timers using oil flow for tripping time control
Shunt trip circuit breaker - ANSWERS-Used in machine rooms with sprinkler systems
Fuses - ANSWERS-Current limiting devices for electrical circuits
Transformer - ANSWERS-Device that increases/decreases voltage
Full wave rectifier - ANSWERS-Converts AC to DC, producing direct current
Exciters - ANSWERS-Self-excited generators with shunt and series fields
SCR drives and VVVF drives - ANSWERS-Convert AC to DC for motor control
AC elevator brakes - ANSWERS-Early brakes inferior to DC brakes
Elevator logic sequence - ANSWERS-Similar across systems, differing in input/output functions
Final limit - ANSWERS-Stops elevator from moving too far past landings
Pile up - ANSWERS-Contact assemblies for selectors using multiple stacks