IEE-QUIZ4

In the cables, sheaths are used to

• Prevent the moisture from entering the cable

• provide proper insulation

• none of the above

• provide enough strength

Multimeter can be used as an ammeter by

• making use of a transducer

• connecting shunts

• making use of a transformer

• connecting series resistance

why is copper a preferred choice in making electrical wires?

• copper is good conductor of electricity

• poor conductors of electricity

• superconductors

• insulators

what is the initial setting made in multimeter before it is used for measuring resistance

• zero adjustment

• fine adjustment

• voltage is applied

• instrument is open circuited

what is the temperature of THHN insulation?

• 70 degree C

• 90 degree C

• 80 degree C

• 60 degree C

digital multimeter is used for

• Measuring a.c and d.c current, voltage and resistance

• Measuring a.c voltage and resistance

• Measuring a.c current and voltage

• Measuring a.c and d.c current and resistance

The insulating material for a cable should have

• Low cost

• High dielectric strength

• High mechanical strength

• All of the above

before connecting an ohmmeter to a circuit you should first

• install new batteries

• operate the circuit

• set the range selector to the highest range

• Check the circuit with a voltmeter to make sure the circuit is not powered

the supply voltage used for domestic purposes isthe supply voltage used for domestic purposes is

• 110-120V

• 220-230V

• 120-130V

• 400-440V

WHICH OF THE FOLLOWING ARE CONDUCTORS?

• MERCURY

• PLASTICS

• CERAMICS

• RUBBER