____ point to a part to identify it, show the location, and/or are the basis of a welding symbol.
A. Break lines
B. Extension lines
C. Leaders and arrows
D. Phantom lines
Answer: C
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When does the insect life cycle begin?
a. the larvae hatch c. at the pupa stage b. the female lays eggs d. adults eat the plant
Match the following:
1. Conductive path to metallic parts of equipment 2. Conducting object that makes direct contact with the earth 3. Connects the system neutral and the equipment to the grounding electrode 4. Referred to as the hot power line 5. Circuit conductor that is intentionally grounded 6. Interconnects electrodes at a building or structure 7. Accidental electrical connection 8. Earth ground A. Ground fault B. Grounded conductor C. Grounding electrode D. Grounding electrode conductor E. Grounding electrode systems F. Equipment grounding conductor G. Ungrounded conductor H. Ground
The heat of compression can be determined using:
A) The enthalpy difference from the beginning to end of the compressor line. B) The enthalpy difference from the beginning to end of the metering device line. C) The enthalpy difference from the beginning to end of the evaporator line. D) The enthalpy difference from the beginning to end of the condenser line.
When an AC voltage is supplied to an RC circuit, the AC's current and amplitude will be:
A) leading the voltage. B) varying in the same manner. C) similar in waveform. D) all of these.