A servo valve is used in a(n) __________ closed-loop system.
A. electrical
B. pneumatic
C. hydraulic
Answer: C
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Ground-fault circuit breakers break only the ____ conductor.
a. grounded b. ungrounded c. tested d. untested
El elemento de sujeción que se debe utilizar para sujetar una ventana a la estructura es un _____.
a. clavo para contramarcos b. tirafondo c. clavo para madera d. clavo sin cabeza
Which of the following is a correct interpretation of the acronym PLC when it is used in the context of trailer wiring?
A. power line carrier B. protocol language communications C. priority line communication D. positive linear corollary
State the primary difference between a detector and a meter
A) Detectors are calibrated in standard units and meters are calibrated in metric units. B) A meter simply detects the presence of a contaminant. A detector measures the amount of the contaminant. C) They are two words for the same instruments. D) A detector simply detects the presence of a contaminant. A meter measures the amount of the contaminant.