CWEA E1 Study Set UPDATED ACTUAL
Exam Questions and CORRECT Answers
Turbine Flow Meters provide what kind of signal? - CORRECT ANSWER Provide a
frequency or pulse output signal
What happens to wire resistance when temperature rises 10 degrees Celsius? - CORRECT
ANSWER It decreases 10%.
Inductor - CORRECT ANSWER Coil of wire that opposes any change in current.
Magnetic Flow Meters show what when the water is low in conductivity? - CORRECT
ANSWER 0 reading if the fluid is low in conductivity.
"Empty Meter"
Purple U.S.A. marking. - CORRECT ANSWER Reclaimed water.
Orange U.S.A. marking. - CORRECT ANSWER Telecommunication, alarm or signal lines
conduit.
Red U.S.A. marking. - CORRECT ANSWER Electric power lines, cables or conduit.
What happens when a motor loses one phase out of 3? - CORRECT ANSWER Single phasing
will cause the motor to trip the overload heaters.
What does a Pitot tube do? - CORRECT ANSWER Measures velocity of low to medium gas
flow applications.
, PH range? - CORRECT ANSWER 0-14
7 is neutral.
Less than 7 is acidic.
More than 7 is base (alkaline)
How long is a confined space permit valid for according to OSHA? - CORRECT
ANSWER No longer than it takes to get the work done.
Entry permits are valid for more than one shift if permit info contains provisions covering shifts.
The voltage from phase to ground in a 480v transformer is? - CORRECT ANSWER 277
volts.
Signal range for pneumatics? - CORRECT ANSWER 3-15psi. 3-6-9-12-15
Intrinsic safety is? - CORRECT ANSWER Barrier preventing excess voltage or current from
reaching in hazardous area.
How do you add capacitors in series? - CORRECT ANSWER Same as resistors.
How many paths in a parallel circuit? - CORRECT ANSWER More than 1.
Determined "Power Factor" formula. - CORRECT ANSWER PF=kw/kva
If transformer primary=120v and secondary 12v=20 amps, what are the amps on the primary? -
CORRECT ANSWER 2 amps.
Formula:
I =Amps/Volume of current
E = Volts/Force moving the current
P = Watts, Electrical power produced
Exam Questions and CORRECT Answers
Turbine Flow Meters provide what kind of signal? - CORRECT ANSWER Provide a
frequency or pulse output signal
What happens to wire resistance when temperature rises 10 degrees Celsius? - CORRECT
ANSWER It decreases 10%.
Inductor - CORRECT ANSWER Coil of wire that opposes any change in current.
Magnetic Flow Meters show what when the water is low in conductivity? - CORRECT
ANSWER 0 reading if the fluid is low in conductivity.
"Empty Meter"
Purple U.S.A. marking. - CORRECT ANSWER Reclaimed water.
Orange U.S.A. marking. - CORRECT ANSWER Telecommunication, alarm or signal lines
conduit.
Red U.S.A. marking. - CORRECT ANSWER Electric power lines, cables or conduit.
What happens when a motor loses one phase out of 3? - CORRECT ANSWER Single phasing
will cause the motor to trip the overload heaters.
What does a Pitot tube do? - CORRECT ANSWER Measures velocity of low to medium gas
flow applications.
, PH range? - CORRECT ANSWER 0-14
7 is neutral.
Less than 7 is acidic.
More than 7 is base (alkaline)
How long is a confined space permit valid for according to OSHA? - CORRECT
ANSWER No longer than it takes to get the work done.
Entry permits are valid for more than one shift if permit info contains provisions covering shifts.
The voltage from phase to ground in a 480v transformer is? - CORRECT ANSWER 277
volts.
Signal range for pneumatics? - CORRECT ANSWER 3-15psi. 3-6-9-12-15
Intrinsic safety is? - CORRECT ANSWER Barrier preventing excess voltage or current from
reaching in hazardous area.
How do you add capacitors in series? - CORRECT ANSWER Same as resistors.
How many paths in a parallel circuit? - CORRECT ANSWER More than 1.
Determined "Power Factor" formula. - CORRECT ANSWER PF=kw/kva
If transformer primary=120v and secondary 12v=20 amps, what are the amps on the primary? -
CORRECT ANSWER 2 amps.
Formula:
I =Amps/Volume of current
E = Volts/Force moving the current
P = Watts, Electrical power produced
