101 Basic Series - Module 07 - Post Assessment
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1
The frame rating or frame size of a low voltage power circuit breaker refers to the _________________ rating of the breaker.
2
Which testing standard most influences the design and testing of low voltage power circuit breakers used in the United States?
3
The nominal voltage range for low voltage power circuit breakers in the domestic market governed by ANSI standards is ______ to 600 Volts AC.
4
A ______   ______ is an electromechanical device used to provide for remote controlled tripping of a manually operated low voltage power circuit breaker.
5
Current transformers used in low voltage power circuit breakers, to monitor and reduce the current to useful levels, are also known as _______________.
6
A typical microprocessor-based trip unit used with a low voltage power circuit breaker can offer the following capabilities, except:
7
An operations counter counts the open and close operations of a low voltage power circuit breaker.
8
Primary connectors between a low voltage power circuit breaker and a bus are called ______________.
9
The operating mechanism springs of both manually operated and electrically operated low voltage power circuit breakers can be charged manually.
10
In the __________________, the low voltage power circuit breaker has no electrical connections, and is far enough out of its enclosure to permit inspection and maintenance.
11
The position in which the low voltage power circuit breaker is fully connected and functional is the __________________.
12
The ____________ rating of a power breaker is one of the main features that differentiates it from other types of circuit breakers.
13
All low voltage power breakers that meet applicable ANSI standards are capable of continuous operation at 100% of their current rating.
14
Of the two most common low voltage power circuit breaker mounting methods, the fixed configuration is most commonly used because it is less expensive.
15
A low voltage power circuit breaker's source of intelligence is its _______________.
16
When a low voltage power circuit breaker opens, its arcing contacts part before the main contacts part in order to draw any arcs formed away from the main contacts.
17
ANSI standards require low voltage power circuit breakers to have integrally mounted trip units.
18
A component of the Arc Extinguisher in a low voltage power circuit breaker, which elongates and cools the arc, is called an arc chute.
19
A three-phase low voltage power circuit breaker would have two sets of primary contacts.
20
A Truck Operated Cell Switch (TOC) provides which of the following?