Which of the following precautions should be taken when troubleshooting various power circuits using a common solenoid-type mechanical voltage tester (wiggins)? A. Never use this tester on circuits greater than 60 Hz, as the coil's resultant high impedance lowers current and magnetic pull. The tester may not register dangerous voltages. B. Always remember that the unit is polarity sensitive and if used on DC circuits reversing the leads may result in high temperatures within the tester. C. Never connect the device to circuits where potentials greater than 120 volts may be present, as the coil's extremely fine wire cannot withstand more than a few amps. D. Always pre-set the meter to the next higher range than the amount of voltage expected in the circuit in order to prevent damage from an

Which of the following precautions should be taken when troubleshooting various power circuits using a common solenoid-type mechanical voltage tester (wiggins)? A. Never use this tester on circuits greater than 60 Hz, as the coil's resultant high impedance lowers current and magnetic pull. The tester may not register dangerous voltages. B. Always remember that the unit is polarity sensitive and if used on DC circuits reversing the leads may result in high temperatures within the tester. C. Never connect the device to circuits where potentials greater than 120 volts may be present, as the coil's extremely fine wire cannot withstand more than a few amps. D. Always pre-set the meter to the next higher range than the amount of voltage expected in the circuit in order to prevent damage from an off-scale reading.  
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Answer: A
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