The tool used to create internal threads is called a ____________________.
Fill in the blank(s) with the appropriate word(s).
tap
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Of the choices listed, which is the best method of troubleshooting an instrumentation problem?
A. Replace components starting with the sensor or sending unit until the instrumentation is working correctly. B. Short the wiring at the associated sensor or sending unit to ground to determine if the wiring is OK. C. Pierce the wire insulation at the sending unit with a test light to determine if voltage is present. D. Use OEM-provided information and procedures to troubleshoot the cause of the instrumentation problem.
Which of the following pull stations require the user to lift a cover or open a door before operating the pull station?
a. Single-action b. Glass-break c. Double-action d. Key-operated
When a new bearing is installed ________
A) Before touching the bearing, wash your hands and dip your fingers in clean motor oil B) Install a new grease seal C) Both A and B D) Neither A nor B
Explain what a resistor is and where you would find it in HVAC circuits
What will be an ideal response?