FLEX AUTOMATION CHAPTERS 5, 6, 7 QUESTIONS
WITH COMPLETE SOLUTIONS.
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. 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 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 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 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 Answer - C. proximity switch
How many standard rules are there for an RLD diagram?
A. 10
B. 9
C. 8
D. 7 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 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. 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. 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. 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.
WITH COMPLETE SOLUTIONS.
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. 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 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 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 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 Answer - C. proximity switch
How many standard rules are there for an RLD diagram?
A. 10
B. 9
C. 8
D. 7 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 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. 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. 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. 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.
