# Prime Power Test Technician Level 2 Practice Exam 2 Of 3 (technical)

50 Questions  I  By Michaelleal01
Test TechnicianLevel 2 practice exam. 50 questions selected at random. 90 minute time limit. Please allow yourself at least 1 hour to complete the test properly. 70% is passing. You cannot save test and resume later. Good Luck!

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 1 A 35 microfarad capacitor is connected to a 120 volt, 60 hz line. What is the value of Xc?
 A. 3.428
 B. 21.54
 C. 75.79
 D. 205.68
 E. 1292.4
 2 If  X=5 , Y=6, then : XY(X^2 -Y) =                      X times Y times   (X squared minus Y)
 A. 370
 B. 570
 C. 840
 D. 930
 3 With insulation resistance test equipment :
 A. Leakage current returned by the guard lead are not normally metered
 B. Leakage current returned by the guard lead passes through the meter
 C. The guard lead provides stabilizing voltage
 D. The guard lead must be connected to ground
 4 A 0.8 henry inductor is connected to a 120 volt, 60hz line. How much current will flow?  hint:  Z= (2xpi)(Frequency)(Henrys)  and I= E/Z
 A. .398 amps
 B. .800 amps
 C. 1.25 amps
 D. 150 amps
 5 What is the total power consumed in the circuit?
 A. 4320 watts
 B. 1260 watts
 C. 4200 watts
 D. 120 watts
 E. 720 watts
 6 The sum of the interior angles of a triangle is :
 A. 360
 B. 120
 C. 180
 D. 90
 7 Generally, high current test sets:
 A. Provide controllable high currents at 277/480 volts
 B. Are 3 phase devices
 C. Are operated ungrounded
 D. Provide high test voltages
 E. Provide high test currents at 10 volts or less
 8 Which formula is correct if : A=100, B= 200, and C= 300
 A. C=A-B
 B. C=C+A
 C. A=B+C
 D. B=C-A
 9 One giga unit is equal to:
 A. 1,000
 B. 0.001
 C. 100,000
 D. 1,000,000
 E. 1,000,000,000
 10 If an AC voltage has a frequency of 350 hertz, how many times will the positive peak value of voltage occur after 2 seconds?
 A. 350
 B. 700
 C. 1400
 D. 2800
 E. 175
 11 An ampere is
 A. Electromotive force
 B. Torque
 C. Resistance to flow
 D. One coulomb per second
 E. Electrostatic charge
 12 Insulation resistance tests sets usually include ___ test connection terminals.
 A. 1
 B. 2
 C. 3
 D. 4
 13 A 119 volt, 60hz AC voltage is put across a series circuit with an 8 ohm resistor and a capacitor who's reactance is 15 ohms. What is the circuit impedance? Z = Square root of (R^2 + Xc^2)
 A. 23 ohms
 B. 17 ohms
 C. 15 ohms
 D. 12.5 ohms
 E. 7 ohms
 14 What current will flow in this circuit?
 A. 6 amps
 B. 3 amps
 C. 14 amps
 D. 8 amps
 E. 12 amps
 15 Power factor is calculated by:
 A. V/A
 B. KW/kVA
 C. HP/V
 D. I/R
 E. VA
 16 On a 575 Delta system, what is the line to line voltage?
 A. 332
 B. 600
 C. 480
 D. 994
 E. 575
 17 Typical ground resistance test sets provide :
 A. 3 output current terminals
 B. 3 output voltage terminals
 C. 4 output voltage terminals
 D. 4 output terminals
 E. None of the above
 18 The maximum voltage rating of a multi-meter used without a high voltage probe is typically
 A. 2500 volts RMS, continuous
 B. 2500 volts RMS or dc, continuous
 C. 750-1000 volts RMS, non-continuous
 D. 600 volts peak
 E. 500 volts ac or dc, continuous
 19 There are _____ degrees in one cycle of a sine wave.
 A. 180
 B. 360
 C. 720
 D. 90
 E. 60
 20 Capacitance is measured in:
 A. Watts
 B. Coulombs
 D. Henrys
 E. Voltamps
 21 To make a resistance measurement, start with the ohmmeter set on :
 A. The lowest resistance scale
 B. The mid range scale
 C. The highest resistance scale
 D. Any scale
 22 What side of the power triangle is the longest?
 A. Watts
 B. Apparent
 C. Vars
 D. Reactive
 E. True
 23 What is the kVA rating of a 3 phase generator rated at 100kW with a .9 power factor?
 A. 111 kVA
 B. 90 kVA
 C. 100 kVA
 D. 190 kVA
 24 If the current lags the voltage by 90 degrees, it is purely a _____________ circuit.
 A. Resistive
 B. Inductive
 C. Capacitive
 D. Parallel
 E. Series
 25 The henry is a unit of measurement of
 A. Reactance
 B. Resistance
 C. Energy
 D. Capacitance
 E. Inductance
 26 To measure circuit resistance, first
 A. Zero the ohm scale
 B. Check for the presence of voltage
 D. Check frequency
 27 What is the turns ratio of a 3 phase 500kVA, 13,200-480 volt rated D-D transformer that is 80% loaded?
 A. 38.122
 B. 27.5
 C. 22
 D. 47.653
 E. None of the above
 28 Multi-meters can be routinely used to
 A. Measure resistance between switchgear and building neutrals and ground conductors during maintenance testing of ground faults
 B. To prove the integrity of bolted bus and cable connections
 C. To measure phase angle
 D. All of the above
 E. None of the above
 29 Insulation power factor test equipment
 A. Is 3 phase
 B. Can perform load power factor measurement
 C. Is frequently used to test transformers
 D. Measures transformer or feeder power usage
 E. Verifies power ratings
 30 Watt is a unit of:
 A. True power
 B. Apparent power
 C. Reactive power
 D. Real power
 E. A and D
 31 Winding resistance measurements are performed by using a :
 A. Megohmeter
 B. Multimeter
 C. Low resistance ohmmeter
 D. Insulation resistance test set
 32 Kilo equals :
 A. Mega / 1000
 B. Giga / 100
 C. Deca x 10
 D. Mili x 1000
 33 A two winding transformer that has a lower primary voltage than its secondary is known as:
 A. A low voltage transformer
 B. A high voltage transformer
 C. A step up transformer
 D. A step down transformer
 E. An autotransformer
 34 Low resistance ohmmeters typically include ____ test connection terminals
 A. 2
 B. 3
 C. 4
 D. 5
 E. 6
 35 The RMS value of a sinusoidal wave is equal to the peak value times:
 A. 2
 B. 1.732
 C. 0.8
 D. 0.707
 E. 1.414
 36 Reactive power is measured in:
 A. Watts
 B. Vars
 C. Voltamps
 D. Ohms
 E. Joules
 37 If a specified value is 120.00 , and the measured value is 124.56, the % error is:
 A. 6.39%
 B. 4.56%
 C. 45.6%
 D. 3.8%
 38 In a series ac circuit that  contains only capacative reactance and resistance, the current :
 A. Leads the voltage by 90 degrees
 B. Lags the voltage by 90 degrees
 C. Is in phase with the voltage
 D. Leads the voltage by less than 90 degrees
 E. Lags the voltage by less than 90 degrees
 39 Voltage in an electrical system:
 A. Is a measurement of power flow
 B. Is always measured to ground
 C. Is equivelent to the pressure of a water system
 D. Varies with ampere flow
 E. Is a result of resistance
 40 Measuring instruments with graduated scales and pointers are referred to as __________ type instruments
 A. Analog
 B. Digital
 C. LED
 D. Averaging
 E. Recording
 41 An insulation resistance test set has 3 scales on its meter face. The top scale is 3 to 3k gigohms. The center scale is 30 to 30k megohms. The bottom scale is 3 to 30k kilohms. After selecting the center scale and connecting the leads to a 2300 volt , 500 HP motor, the instrument indicates the lowest reading. You have determined that :
 A. There are shorted turns in the windings
 B. The motor insulation is weak
 C. The value measured should be reported
 D. The test set is on the wrong scale
 E. B and D are correct
 42 The batteries in a typical analog multimeter are required for:
 A. Dc voltage measurements
 B. Ac voltage measurements
 C. Ampere measurements
 D. Resistance measurements
 E. All meter measurements
 43 What test equipment is used to test the RTD inputs of a motor protective relay?
 B. High current test set
 C. Relay test set
 D. Multi-meter
 E. Megohmmeter
 44 What is indicated when the turns ratio test set is hard to crank and the correct exciting voltage cannot be reached ?
 A. Incorrect polarity
 B. Shorted specimen windings
 C. Open windings
 D. KVa rating is too large
 E. A or B
 45 If 4000 was the specified value, and 3850 was the mesured value, what is the percent error?
 A. -0.096
 B. -3.75
 C. 3.9
 D. 1.04
 46 A polorization index  test typically requires the use of :
 A. Voltmeter
 B. Megohhmeter
 C. Low resistance ohmmeter
 D. Power factor test set
 E. Watt or phase angle meter
 47 What is the total circuit resistance?
 A. 100 ohms
 B. 50 ohms
 C. 10 ohms
 D. 1 ohm
 48 Which instrument or test set is LEAST likely to be used during the testing of medium voltage cables
 A. Megohmmeter
 B. Ohmmeter
 C. DC high potential test set
 D. Voltage detector
 E. Turns ratio test set
 49 How would you use a VOM rated at 10 amperes maximum to measure a 100 amp load?
 A. Use the 10A scale
 B. Use the ohm scale
 C. Use the volt scale
 D. Use the mA scale
 E. Use a current transformer
 50 Properly adjusting to the null point of a transformer turns ratio test set :
 A. Is accomplished by changing the test set's adjustment dial unil the test set impedence matches the specimen transformer's impedance
 B. None of the above
 C. Measures the difference between the test set's internal fixed ratio reference transformer and the specimen transformer
 D. Assures correct test current flow and test voltage
 E. Is accomplished by changing the adjustable ratio of the test set's reference transformer
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