What is the best tool for determining if an electrical wire running through a space where you are working is energized?
A) A clamp-on voltmeter B) A multimeter
C) A digital voltmeter D) A noncontact voltage detector
D
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How does a thermoelectric device (TED) work?
A) Uses an electric current passed through coolant B) When electrical current flows through the module, one side is heated and the other side is cooled C) A type of resistance heating D) Using a temperature-controlled thermostat in the cooling system to control coolant temperature
Use of the term natural on petfood labels indicates that no ingredient other than vitamins and minerals has been synthesized chemically
A. True B. False
When using a light beam alignment system to check axle tracking on a highway semi-trailer, how should the kingpin flag assembly be mounted to the trailer?
A. on the kingpin perpendicular to the vehicle centerline B. on the kingpin aligned longitudinally to the vehicle centerline C. on axle extensions D. clamped to the foremost part of the upper coupler plate
Which of the following measures is a perfect vacuum if absolute measurement is used?
A) 0 in Hg absolute B) 29.92 in Hg absolute C) 9.92 in Hg absolute D) 20 in Hg absolute