TRUSTED TEST SOLUTIONS!
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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:
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, "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
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