A(n) ___ operates by sending sound waves toward a target and measuring the time it takes for the pulses to bounce back.
A) pressure sensor
B) bar code scanner
C) ultrasonic sensor
D) flowmeter
Correct Answer:
Verified
Q37: The abbreviations NO (normally open) and NC
Q38: The device represented by the symbol is
Q39: Any overload current is sensed by the:
Q40: A contactor:
A)is another name for a relay.
B)is
Q41: The symbol shown is that for a:
Q43: The symbol shown is that for a:
Q44: Capacitor proximity sensors:
A)are actuated by both conductive
Q45: An inductive proximity sensor is actuated by:
A)a
Q46: The resistor shown in the circuit:
Q47: The light source used in most industrial
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