Test Instruments

Cable pairs that are twisted at different rates are used to reduce problems from

• Cross talk

• current leakage

• propagation delay

• radio frequency interference

Which conductor is a grounded current carrying conductor

• Hot

• Neutral

• phase

• reference

Leading power factor can be corrected by adding _______ banks to the lines.

• capacitor

• inductor

• resistor

• transformer

High voltage test probes should not be used to take measurements in circuits that contain _________.

• capacitors

• high currents

• low frequencies

• surge protectors

What needs to be considered when selecting test instruments and devices?

• accuracy required

• application involved

• operating enviroment

• all of the above

The accuracy rating of a test instrument how close the measurement of the instrument will be to the _______

• actual value

• expected value

• allowable range

• calculated range

Velocity is the _______ at which gases, liquids and solids travel through a system'

• speed

• force

• power

• accumulation

Light is the portion of the electromagnetic spectrum that produces _______ energy.

• cosmic

• photogenic

• radiant

• solar

In what unit of measure does a light meter measure?

• foot-candles

• photons

• watts

• wavelength

Plant or facility procedures for troubleshooting are usually developed by __________

• operators

• installers

• designers

• contractors