CWEA E1 Study Set Questions with complete solutions
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Course
Cwea
Institution
Cwea
CWEA E1 Study Set Questions with complete solutions
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 pro...
CWEA E1 Study Set Questions with complete solutions
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
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.
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.
Cat3 Meter - answer Measures 3 phase distribution and single phase lighting equipment.
Cat4 Meter - answer Measures 3 phase at utility connection and any outdoor connections.
L.O.T.O. - answer Lock out tag out is an osha regulation.
3 elements needed to start a fire. - answer Heat, oxygen and fuel.
Class C fire. - answer Electrical fire
What is Rust - answer Combination of water, oxygen and iron.
Micrometer Torque Wrench does what when setting is reached? - answer Clicks.
V.F.D. - answer Variable frequency drive used for AC motor speed in hertz.
Bourdon Tube Gauge shape - answer C shaped.
1 PSI = ? feet of water. - answer 2.31
Partial Flume - answer A device used to measure the flow in an open channel. The flume narrows to a throat of fixed dimensions and then expands again. The rate of flow can be calculated by measuring the difference in head (pressure) before and at the throat of the flume.
Measuring at sea level and 8000' does an O2 sensor need recalibration. - answer Yes, because of pressure difference.
Hysteresis - answer Input ascending and descending
Turbine Flow Meters provide what kind of signal? - answer Provide a frequency or pulse output signal
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