Most _____ are difficult to identify, have scales coving their bodies, forked tails, and lack scales on their heads
a. gar
b. bass
c. shad
d. minnow
a
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Which of these is NOT one of the basic styles of pressure plates?
A) Marcel B) Diaphragm C) Long D) Borg and Beck
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Los dispositivos de soporte que se ajustan en forma vertical utilizados en la reparación o fabricación de tubería se llaman:
a. horquillas.
b. envolturas.
c. trípodes niveladores.
d. soportes niveladores.
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Which of the following protect the motor and control devices against overheating?
a. Solid-state overload relays b. Solid-state relays c. Timing relays d. Thyristors
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Metric bolt strength is indicated by _________
A) Lines on the head B) Numbers on the head C) Both A and B D) Neither A nor B
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