IP Prep Flashcards
What does an NPN transistor consist of?
Two cathodes and one anode
What is the minimum clearance distance that must be behind the rungs of a vertical ladder used to gain access to the working platform of a scaffold?
0.15M (6 in.)
What test should be performed after the installation of a stress cone on a high-voltage conductor termination?
High pot test
In a DC motor, what are interpoles used to correct?
Excessive sparking at the brushes
How many sprinkler system flow switches can be put on one fire alarm panel zone?
One
Which code prescribes requirements for the removal of abandoned communication cables in a lay-in tile ceiling used as a plenum space?
National fire code of Canada
What type of timing contact does the symbol represent?
NC/TC
Where is electrical equipment required to be seismically restrained?
Where required by local authorities having jurisdiction
What type of building automation system topology is used when all network nodes are connected to a central site?
A. Ring
B. Bus
C. Star
D. Mesh
Star
In a transition from conventional wiring to a flat conductor cable, what is the maximum length that CFC cable can be run as an extension of the conventional wiring system to serve areas or zones?
A. 5 m
B. 10 m
C. 15 m
D. 20 m
15 m
What is the most common type of connector used for Power over Ethernet (PoE) switches in building automation systems?
A. RJ45
B. DB15
C. SC
D. F-Type coax
RJ45
Whoch government body mist be complied with if a fire wall is pierced by an electrical cable or raceway to prevent fire spread?
A. Canadian electrical code of Canada
B. National building code of Canada
C. National plumbing code of Canada
D. None of the above
National building code of Canada
What is the maximum ampacity rating of a two wire conductor designated #14 AWG NMD90 if connected to a piece of equipment without a marked termination temperature?
A. 12 amps
B. 25 amps
C. 20 amps
D. 15 amps
25 amps
For the purpose of determining voltage drop in an installation, what is the demand load of a branch circuit when the connected load is unknown?
A. The connected load
B. 80% of the connected load
C. 75% of the connected load
D. 100% of the overcurrent protection device
The connected load
One of the objectives of grounding and bonding is to limit AC circuit voltages-to-ground to ________ or less on circuits supplying interior wiring systems.
A. 115 volts
B. 120 volts
C. 150 volts
D. 240 volts
150 volts
