CWEA E1 Study Set Questions and
Answers 100% Pass
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 P
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CWEA E1 Study Set Questions and
Answers 100% Pass
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:
"Resistance" ✔✔A construction in the bore of the pipe which requires more pressure to pass the
same amount of water.
Hydraulic Term:
"Voltage"
(Assume water is flowing horizontally so gravity isn't a factor) ✔✔Electric potential is
equivalent to pressure and the voltage (or voltage drop/potential difference) is the difference in
pressure between two points.
Hydraulic Term:
"Current" ✔✔Equivalent to a hydraulic volume flow rate; that is 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.
N.F.P.A. ✔✔National Fire Protection Association
NPT ✔✔National pipe thread. Tapered pipe.
Compound Gauge ✔✔Displays negative AND positive pressure measurements
Cat1 Meter ✔✔Measures electronics
Cat2 Meter ✔✔Measures single-phase receptacles.
Cat3 Meter ✔✔Measures 3 phase distribution and single phase lighting equipment.
Cat4 Meter ✔✔Measures 3 phase at utility connection and any outdoor connections.
L.O.T.O. ✔✔Lock out tag out is an osha regulati
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