The importance of use of electrical meters for service technicians.

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2.A. You can usually check for a leak in a vacuum system by looking at or feelingA. at the exhaust of the vacuum pump.B. at the vacuum gauge at the vacuum pump.C. for signs of dirt on the piping. 2.B. When you measure the voltage drop across a set of contacts, you'reA. checking the quality of the contact set.B. sensing how much current is flowing in the circuit.C. measuring the equivalent motor resistance. 2.C. A chain-drive system can be aligned easier than a belt-drive system since the chain-drive systemA. can have a string left on the sprockets after the alignment is complete.B. can have the chain removed while the final alignment is taking place.C. is less critical to misalignment.

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Chapter 4, Problem 2RQ

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The importance of use of electrical meters for service technicians.

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2.A. You can usually check for a leak in a vacuum system by looking at or feelingA. at the exhaust of the vacuum pump.B. at the vacuum gauge at the vacuum pump.C. for signs of dirt on the piping. 2.B. When you measure the voltage drop across a set of contacts, you'reA. checking the quality of the contact set.B. sensing how much current is flowing in the circuit.C. measuring the equivalent motor resistance. 2.C. A chain-drive system can be aligned easier than a belt-drive system since the chain-drive systemA. can have a string left on the sprockets after the alignment is complete.B. can have the chain removed while the final alignment is taking place.C. is less critical to misalignment.

H.b- When you're first starting a PM program, and you want to check motor starter and contactor contacts,how often should you perform a PM inspection on these devices?A. Every two monthsB. Every six monthsC. Every yearD. Every month c.b. Which one of the following isn’t a goal of a PM program?A. Limit downtimeB. Save a company money on maintenance so that the cost of its products stays competitiveC. Keep a machine running within its specificationsD. Use fewer repair parts and less time to install those parts c.c. Which of the following tasks is an uptime PM task that can be performed while the machine is runningduring production?A. Checking the motor starter contacts for burned and pitted areasB. Checking for excess noise or vibration on the machineC. Checking the condition of the couplingD. Tightening electrical connections

what would be the resistance of a circuit that is open