Flex Automation Questions With All Correct
& Verified Answers
You can only place one output device per rung; therefore, you cannot place any output devices in
____.
A. parallel
B. series
C. junction
D. None of the above. Correct answer-B. Series
The device that must be placed on the right corner of a rung in a relay logic diagram is a(n) ____
device.
A. output
B. input
C. discrete
D. indiscrete Correct answer-A. output
A motor can operate in continuous run mode or in temporary run mode, also called ____ mode.
A. run
B. jog
C. skip
D. stall Correct answer-B. jog
In a relay logic diagram (RLD), the following symbol is used for a ____.
A. resistor heater
B. motor
C. solenoid
D. limit switch Correct answer-C. solenoid
In a relay logic diagram (RLD), the following symbol is used for a ____.
A. pressure switch
B. flow switch
C. proximity switch
D. limit switch Correct answer-C. proximity switch
How many standard rules are there for an RLD diagram?
A. 10
B. 9
C. 8
D. 7 Correct answer-B. 9
In the following relay logic diagram, ____.
A. closing the stop switch will turn on the red light and the motor
B. closing the stop switch and the pressure pushbutton will start the motor, turn on the red light, and
turn off the green light
C. closing the stop switch and pressure the pushbutton will start the motor and turn on the red light
D. opening the stop switch while the motor is running will turn off the motor and turn on the red
light Correct answer-B. closing the stop switch and the pressure pushbutton will start the motor,
turn on the red light, and turn off the green light
, Which of the following statements is false?
A. The input device can be the first on a rung in an RLD.
B. Current in an RLD flows from left to right.
C. The output device can be in the middle of a rung in an RLD.
D. The output device is the last device on a rung in an RLD. Correct answer-C. The output device
can be in the middle of a rung in an RLD.
In the RLD diagram shown, the motor turns on if ____.
A. SW1 and SW2 are closed
B. SW1 and LS are closed
C. SW2 is closed and PB is pressed
D. All of the above. Correct answer-B. SW1 and LS are closed
In the RLD diagram shown, the voltage level between lines L1 and L2 can be ____.
A. 12 VDC
B. 24 VDC
C. 120 VAC
D. All of the above. Correct answer-D. All of the above.
Which of the following statements is false?
A. Current in an RLD flows from rail L1 to rail L2.
B. Current on a rung in an RLD can flow through two switches connected in series.
C. Current on a rung in an RLD can flow through two motors connected in series.
D. Current on a rung in an RLD can flow through three solenoids connected in parallel. Correct
answer-C. Current on a rung in an RLD can flow through two motors connected in series.
You can place as many input devices as desired in series or in parallel in one rung in a relay logic
diagram. Correct answer-T
You can only place one output device per rung, so you cannot place any output devices in series.
Correct answer-T
Input devices can be represented multiple times in a relay logic diagram. Correct answer-T
According to rule nine, the location of each contact associated with a coil can be recorded by the left-
hand rail near the coil. Correct answer-F
Each output device can only be represented once in a relay logic diagram. Correct answer-T
Input devices are placed near the right corner of the rung. Correct answer-F
Output devices can be connected in series. Correct answer-F
All the input and output devices must be placed vertically. Correct answer-F
Current in the relay logic diagram must flow from left to right. Correct answer-T
A(n) ______________________________ logic diagram is created to show the logical relationship
between devices. Correct answer-relay
& Verified Answers
You can only place one output device per rung; therefore, you cannot place any output devices in
____.
A. parallel
B. series
C. junction
D. None of the above. Correct answer-B. Series
The device that must be placed on the right corner of a rung in a relay logic diagram is a(n) ____
device.
A. output
B. input
C. discrete
D. indiscrete Correct answer-A. output
A motor can operate in continuous run mode or in temporary run mode, also called ____ mode.
A. run
B. jog
C. skip
D. stall Correct answer-B. jog
In a relay logic diagram (RLD), the following symbol is used for a ____.
A. resistor heater
B. motor
C. solenoid
D. limit switch Correct answer-C. solenoid
In a relay logic diagram (RLD), the following symbol is used for a ____.
A. pressure switch
B. flow switch
C. proximity switch
D. limit switch Correct answer-C. proximity switch
How many standard rules are there for an RLD diagram?
A. 10
B. 9
C. 8
D. 7 Correct answer-B. 9
In the following relay logic diagram, ____.
A. closing the stop switch will turn on the red light and the motor
B. closing the stop switch and the pressure pushbutton will start the motor, turn on the red light, and
turn off the green light
C. closing the stop switch and pressure the pushbutton will start the motor and turn on the red light
D. opening the stop switch while the motor is running will turn off the motor and turn on the red
light Correct answer-B. closing the stop switch and the pressure pushbutton will start the motor,
turn on the red light, and turn off the green light
, Which of the following statements is false?
A. The input device can be the first on a rung in an RLD.
B. Current in an RLD flows from left to right.
C. The output device can be in the middle of a rung in an RLD.
D. The output device is the last device on a rung in an RLD. Correct answer-C. The output device
can be in the middle of a rung in an RLD.
In the RLD diagram shown, the motor turns on if ____.
A. SW1 and SW2 are closed
B. SW1 and LS are closed
C. SW2 is closed and PB is pressed
D. All of the above. Correct answer-B. SW1 and LS are closed
In the RLD diagram shown, the voltage level between lines L1 and L2 can be ____.
A. 12 VDC
B. 24 VDC
C. 120 VAC
D. All of the above. Correct answer-D. All of the above.
Which of the following statements is false?
A. Current in an RLD flows from rail L1 to rail L2.
B. Current on a rung in an RLD can flow through two switches connected in series.
C. Current on a rung in an RLD can flow through two motors connected in series.
D. Current on a rung in an RLD can flow through three solenoids connected in parallel. Correct
answer-C. Current on a rung in an RLD can flow through two motors connected in series.
You can place as many input devices as desired in series or in parallel in one rung in a relay logic
diagram. Correct answer-T
You can only place one output device per rung, so you cannot place any output devices in series.
Correct answer-T
Input devices can be represented multiple times in a relay logic diagram. Correct answer-T
According to rule nine, the location of each contact associated with a coil can be recorded by the left-
hand rail near the coil. Correct answer-F
Each output device can only be represented once in a relay logic diagram. Correct answer-T
Input devices are placed near the right corner of the rung. Correct answer-F
Output devices can be connected in series. Correct answer-F
All the input and output devices must be placed vertically. Correct answer-F
Current in the relay logic diagram must flow from left to right. Correct answer-T
A(n) ______________________________ logic diagram is created to show the logical relationship
between devices. Correct answer-relay
