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CWEA E1 Study Set Questions and Answers
with Complete Solutions UPDATED!!!
Confined Space - ANSWER 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 - ANSWER An employer's written
authorization to perform work capable of providing a source of
ignition.
Inerting - ANSWER 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 - ANSWER 19.5% to 23.5%
Below 19.5=unsafe for breathing
Above 23.5=explosive
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Leader Line - ANSWER 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" - ANSWER 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) -
ANSWER 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" - ANSWER Equivalent to a hydraulic volume flow rate;
that is the volumetric quantity of flowing water over time.
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Ohm's Law - ANSWER Current through a conductor between
two points is directly proportional to the voltage across the two
points.
S.O.P. - ANSWER Standard operating procedure.
N.E.C. - ANSWER National Electrical Code.
N.F.P.A. - ANSWER National Fire Protection Association
NPT - ANSWER National pipe thread. Tapered pipe.
Compound Gauge - ANSWER Displays negative AND positive
pressure measurements
Cat1 Meter - ANSWER Measures electronics
Cat2 Meter - ANSWER Measures single-phase receptacles.
CWEA E1 Study Set Questions and Answers
with Complete Solutions UPDATED!!!
Confined Space - ANSWER 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 - ANSWER An employer's written
authorization to perform work capable of providing a source of
ignition.
Inerting - ANSWER 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 - ANSWER 19.5% to 23.5%
Below 19.5=unsafe for breathing
Above 23.5=explosive
,2|Page
Leader Line - ANSWER 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" - ANSWER 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) -
ANSWER 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" - ANSWER Equivalent to a hydraulic volume flow rate;
that is the volumetric quantity of flowing water over time.
, 3|Page
Ohm's Law - ANSWER Current through a conductor between
two points is directly proportional to the voltage across the two
points.
S.O.P. - ANSWER Standard operating procedure.
N.E.C. - ANSWER National Electrical Code.
N.F.P.A. - ANSWER National Fire Protection Association
NPT - ANSWER National pipe thread. Tapered pipe.
Compound Gauge - ANSWER Displays negative AND positive
pressure measurements
Cat1 Meter - ANSWER Measures electronics
Cat2 Meter - ANSWER Measures single-phase receptacles.
