Flex Automation Chapter 4 Exam UPDATED
QUESTIONS AND CORRECT ANSWERS
A single-pole, single-throw (SPST) switch connected to a discrete input can send _____.
A. an ON or an OFF signal to the PLC
B. a logic 1 or a logic 0 to the PLC
C. only an ON signal to the PLC
D. Both A and B. - CORRECT ANSWER D. Both A and B.
The following electrical symbol is classified as a ____.
A. single-pole, single-throw, single-break
B. single-pole, double-throw, single-break
C. double-pole, double-throw, double-break
D. double-pole, single-throw, double-break - CORRECT ANSWER C. double-pole, double-
throw, double-break
The following electrical symbol is classified as a ____.
A. double-pole, double-throw, single-break
B. double-pole, double-throw, double-break
C. double-pole, single-throw, double-break
D. double-pole, single-throw, single-break - CORRECT ANSWER C. double-pole, single-
throw, double-break
A double-pole, double-throw (DPDT) switch has ____.
A. 3 terminals
B. 4 terminals
C. 5 terminals
D. 6 terminals - CORRECT ANSWER D. 6 terminals
The following symbol in an RLD represents a ____.
A. temperature switch
, B. flow switch
C. float switch
D. pressure switch - CORRECT ANSWER A. temperature switch
Which of the following statements is false?
A. A liquid level switch is sometimes called a float switch.
B. A proximity switch can be used instead of a limit switch.
C. A proximity switch can be used instead of a level switch.
D. A flow switch can replace a pressure switch. - CORRECT ANSWER D. A flow switch can
replace a pressure switch.
There are electronic sensors that can be used to mimic ____.
A. human sight and hearing
B. human touch and taste
C. human smell and hearing
D. All of the above. - CORRECT ANSWER D. All of the above.
An electronic proximity sensor can have a(n) ____.
A. LED and phototransistor
B. magnetic field and coil
C. transmitter and receiver
D. Both A and C. - CORRECT ANSWER D. Both A and C.
In a triangulation system, ____.
A. distance is measured
B. direction of the location of an object is detected
C. both distance (range) and direction of an object is detected
D. None of the above. - CORRECT ANSWER C. both distance (range) and direction of an
object is detected
There are ____.
QUESTIONS AND CORRECT ANSWERS
A single-pole, single-throw (SPST) switch connected to a discrete input can send _____.
A. an ON or an OFF signal to the PLC
B. a logic 1 or a logic 0 to the PLC
C. only an ON signal to the PLC
D. Both A and B. - CORRECT ANSWER D. Both A and B.
The following electrical symbol is classified as a ____.
A. single-pole, single-throw, single-break
B. single-pole, double-throw, single-break
C. double-pole, double-throw, double-break
D. double-pole, single-throw, double-break - CORRECT ANSWER C. double-pole, double-
throw, double-break
The following electrical symbol is classified as a ____.
A. double-pole, double-throw, single-break
B. double-pole, double-throw, double-break
C. double-pole, single-throw, double-break
D. double-pole, single-throw, single-break - CORRECT ANSWER C. double-pole, single-
throw, double-break
A double-pole, double-throw (DPDT) switch has ____.
A. 3 terminals
B. 4 terminals
C. 5 terminals
D. 6 terminals - CORRECT ANSWER D. 6 terminals
The following symbol in an RLD represents a ____.
A. temperature switch
, B. flow switch
C. float switch
D. pressure switch - CORRECT ANSWER A. temperature switch
Which of the following statements is false?
A. A liquid level switch is sometimes called a float switch.
B. A proximity switch can be used instead of a limit switch.
C. A proximity switch can be used instead of a level switch.
D. A flow switch can replace a pressure switch. - CORRECT ANSWER D. A flow switch can
replace a pressure switch.
There are electronic sensors that can be used to mimic ____.
A. human sight and hearing
B. human touch and taste
C. human smell and hearing
D. All of the above. - CORRECT ANSWER D. All of the above.
An electronic proximity sensor can have a(n) ____.
A. LED and phototransistor
B. magnetic field and coil
C. transmitter and receiver
D. Both A and C. - CORRECT ANSWER D. Both A and C.
In a triangulation system, ____.
A. distance is measured
B. direction of the location of an object is detected
C. both distance (range) and direction of an object is detected
D. None of the above. - CORRECT ANSWER C. both distance (range) and direction of an
object is detected
There are ____.
