Most lasers range from ____ watts in power.
A. 200 to 800
B. 400 to 1200
C. 400 to 1500
D. 800 to 1500
Answer: C
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Las líneas en los dibujos que se utilizan para mostrar el contorno principal de una estructura, incluso paredes exteriores, divisiones internas, aceras y autopistas se llaman líneas _____.
a. de objetos b. de referencia c. de extensión d. de dimensión
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Which of the following cable types in commonly used in residential construction?
A) AC B) NM C) FC
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Contactor contacts that are badly pitted can cause the motor to burn out.
Answer the following statement true (T) or false (F)
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Rough spots or looseness encountered when rotating the motor shaft may indicate _____
A) excessive leakage B) worn out bellows C) bearing problems D) sealing problems
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