Lokring® fittings are best assembled using the appropriate pipe sealant with Teflon®when _____.

a. piping is misaligned
b. the pipe must be forced into the fitting body
c. the piping will be subjected to extreme pressure
d. using Schedule 10 or lighter piping


d. using Schedule 10 or lighter piping

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Why is a smart card needed in GSM, while it is not required in AMPS? Explain the logic behind this.

What will be an ideal response?

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Cuando escuche el motor para detectar ruidos inusuales, debe intentar distinguir:

a. pérdida de espesamiento de la grasa. b. un zumbido uniforme. c. contacto entre metales. d. la rotación del rotor.

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MAF sensor electrical connectors should be checked for all of these, EXCEPT ________

A) Frayed wiring B) Corrosion C) Terminals bent or pushed out of the plastic connector D) Tight connectors

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Refrigerant oil flow through the liquid line is not a problem because:

A) The liquid line is always piped downhill. B) There is no oil present in the liquid line. C) The oil and refrigerant do not mix, so the refrigerant does not interfere with oil flow. D) The oil mixes with the liquid refrigerant.

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