101 Basic Series - Module 07 - Post Assessment
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1
The operating mechanism springs of both manually operated and electrically operated low voltage power circuit breakers can be charged manually.
2
A component of the Arc Extinguisher in a low voltage power circuit breaker, which elongates and cools the arc, is called an arc chute.
3
Which testing standard most influences the design and testing of low voltage power circuit breakers used in the United States?
4
A typical microprocessor-based trip unit used with a low voltage power circuit breaker can offer the following capabilities, except:
5
All low voltage power breakers that meet applicable ANSI standards are capable of continuous operation at 100% of their current rating.
6
Of the two most common low voltage power circuit breaker mounting methods, the fixed configuration is most commonly used because it is less expensive.
7
Current transformers used in low voltage power circuit breakers, to monitor and reduce the current to useful levels, are also known as _______________.
8
ANSI standards require low voltage power circuit breakers to have integrally mounted trip units.
9
The nominal voltage range for low voltage power circuit breakers in the domestic market governed by ANSI standards is ______ to 600 Volts AC.
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
A three-phase low voltage power circuit breaker would have two sets of primary contacts.
12
The frame rating or frame size of a low voltage power circuit breaker refers to the _________________ rating of the breaker.
13
The ____________ rating of a power breaker is one of the main features that differentiates it from other types of circuit breakers.
14
An operations counter counts the open and close operations of a low voltage power circuit breaker.
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
A ______   ______ is an electromechanical device used to provide for remote controlled tripping of a manually operated low voltage power circuit breaker.
18
Primary connectors between a low voltage power circuit breaker and a bus are called ______________.
19
The position in which the low voltage power circuit breaker is fully connected and functional is the __________________.
20
A Truck Operated Cell Switch (TOC) provides which of the following?