CWEA E1 Study Set EXAM Questions & Answers
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Terms in this set (137)
If transformer primary=120v and 2 amps.
secondary 12v=20 amps, what are Formula:
the amps on the primary? I =Amps/Volume of current
E = Volts/Force moving the current
P = Watts, Electrical power produced
I x E=P
12 x 20=240watts
In a transformer watts stay the same so now:
P/E=I
240/120v=2 amps
If 17.32v are applied across a 6.0 watts.
resistance of 50 ohms, how much Formula: V squared/R = P
power is expended in the resistor? 17.32 squared(299.98)/50=5.99
Confined Space A space that:
-is large enough to enter and work.
-has limited or restricted means for entry.
-is not designed for continuous occupancy.
Hot Work Permit An employer's written authorization to perform
work capable of providing a source of ignition.
, Inerting A form of purging or ventilating a confined space
where an inert gas (such as nitrogen, carbon
dioxide or argon) is used to displace the
atmosphere in a confined space to remove fire or
explosion hazards. Causes oxygen levels to
become unstable for re-entry.
Oxygen Safe Zone 19.5% to 23.5%
Below 19.5=unsafe for breathing
Above 23.5=explosive
Leader Line The part or area of a drawing to which a number,
note or other reference applies. They are solid
lines and usually terminate in a single arrowhead.
Hydraulic Term: A construction in the bore of the pipe which
"Resistance" requires more pressure to pass the same amount
of water.
Hydraulic Term: Electric potential is equivalent to pressure and
"Voltage" the voltage (or voltage drop/potential difference)
(Assume water is flowing is the difference in pressure between two points.
horizontally so gravity isn't a factor)
Hydraulic Term: Equivalent to a hydraulic volume flow rate; that is
"Current" the volumetric quantity of flowing water over
time.
Ohm's Law Current through a conductor between two points
is directly proportional to the voltage across the
two points.
S.O.P. Standard operating procedure.
N.E.C. National Electrical Code.
| 100% Verified solutions |Questions with Correct
Answers 2026 latest update!!
Save
Terms in this set (137)
If transformer primary=120v and 2 amps.
secondary 12v=20 amps, what are Formula:
the amps on the primary? I =Amps/Volume of current
E = Volts/Force moving the current
P = Watts, Electrical power produced
I x E=P
12 x 20=240watts
In a transformer watts stay the same so now:
P/E=I
240/120v=2 amps
If 17.32v are applied across a 6.0 watts.
resistance of 50 ohms, how much Formula: V squared/R = P
power is expended in the resistor? 17.32 squared(299.98)/50=5.99
Confined Space A space that:
-is large enough to enter and work.
-has limited or restricted means for entry.
-is not designed for continuous occupancy.
Hot Work Permit An employer's written authorization to perform
work capable of providing a source of ignition.
, Inerting A form of purging or ventilating a confined space
where an inert gas (such as nitrogen, carbon
dioxide or argon) is used to displace the
atmosphere in a confined space to remove fire or
explosion hazards. Causes oxygen levels to
become unstable for re-entry.
Oxygen Safe Zone 19.5% to 23.5%
Below 19.5=unsafe for breathing
Above 23.5=explosive
Leader Line The part or area of a drawing to which a number,
note or other reference applies. They are solid
lines and usually terminate in a single arrowhead.
Hydraulic Term: A construction in the bore of the pipe which
"Resistance" requires more pressure to pass the same amount
of water.
Hydraulic Term: Electric potential is equivalent to pressure and
"Voltage" the voltage (or voltage drop/potential difference)
(Assume water is flowing is the difference in pressure between two points.
horizontally so gravity isn't a factor)
Hydraulic Term: Equivalent to a hydraulic volume flow rate; that is
"Current" the volumetric quantity of flowing water over
time.
Ohm's Law Current through a conductor between two points
is directly proportional to the voltage across the
two points.
S.O.P. Standard operating procedure.
N.E.C. National Electrical Code.
