RECTIFIERS AND CONVERTERS QUIZ

Electrolysis

Variable speed operation

Traction

Illumination

high power factor

None of the listed here

low power factor

zero power factor

Mercury arc rectifiers

Copper oxide rectifiers

Mechanical rectifiers

Selenium rectifiers

cathode drop and arc drop

anode drop and cathode drop

anode drop and arc drop

anode drop, cathode drop and arc drop

None of the listed here

an induction motor and a D.C. generator

a synchronous motor and a D.C. generator

Both of the listed here

Aluminium

Boron carbide

Graphite

Copper

operate on low temperatures

give poor regulation

can operate on high voltages

can operate on heavy loads

Two

Four

Three

Six

Six-phase

Single-phase

Three-phase

Two-phase

high ionization potential

self restoring property of mercury

high temperature inside the rectifier

energy spent in overcoming the electrostatic field