Elec Final Flashcards
A triangle which contains only two equal sides
Isosceles triangle
What voltage can be present on the cathode of electron gun
25 KV
Which of the following is not an application of oscilloscope measurement
Measure current amplitude
Which of the following controls will vertically adjust the electron beam
Volts division
What position is the CAL control knob normally placed
Fully clockwise
What are the two basic types of probes used in our oscilloscopes
X one X 10
Moderate increase to an above normal current over a period of time is an explanation of
Overload
What is the maximum voltage and current rating of a plug fuse
150 V 30 A
What is expected interrupting capacity of an HRC fuse
200 kamps
Under what conditions must a HRC fuse be used for circuit protection
Over 10,000 A
What type of breaker is capable of protecting equipment from overload
Thermal
What term is used to describe a breaker that trips even though it handled is held in the opposition
Trip free
What type of breaker protects against overcurrent only
Magnetic
What does a single pole GFCI breaker measure to monitor leakage current
In balance current between hot and neutral connection
What residential circuits are to be protected by our fault current breaker
Bedroom receptacles