PROGRAMMABLE LOGIC CONTROLLERS FINAL
Study online at https://quizlet.com/_3f1onz
1. A normally open contact disconnects two conducting False
points upon pressing the button.
2. A normally closed switch moves away from the station- True
ary contact upon pressing the button.
3. In a normally open high temperature switch, when it is True
closed, the circuit send a signal that the temperature
is reached maximum limit.
4. When no power is going, the function of a spring in a Disengage two conduct-
normally open switch is to: ing points .
5. The 6-pin push button stainless steel switch's backside Both normally closed and
has 2 pins in the middle, they are? held closed.
6. The main reason to connect a normally open switch's True
pin to an LED light's positive terminal is to supply pow-
er when the button pressed.
7. The 6-pin push button stainless steel switch's backside False
has 2 pins in the middle, if they are normally closed,
they can be used to keep power supply to the escalator.
8. There are huge difference between manaual and au- False
tomatic transfer switches. Manual uses push and pull
relay logic, and the automatic uses plug and unplug
methods.
9. The selection of manual or automatic switch should be None of the above
based on all of the following expect:
10. The ______ coil causes the relay's contact to either close Magnetized or demagne-
or open. tized
1/6
, PROGRAMMABLE LOGIC CONTROLLERS FINAL
Study online at https://quizlet.com/_3f1onz
11. A _____ sensor uses visible, ultraviolet, infrared, or laser Optical
lights and requires both an emitter to generate the
light beam and a detector.
12. A ____ sensor detects an object through the change in Capacitive
the sensor's dielectric
13. A ____ sensor detects the presence of nearby metallic Inductive
objects by measuring changes in magnetic fields.
14. The ____ detects over current thorough the magnetiza- Magnetic overload relay
tion when the line current genrates.
15. A _____ is a control device that uses electromagnetism Solenoid
to convert electrical energy into mechanical motion.
16. A ____ relay is typically used in the control of low-power Control
circuits or other relays.
17. Light-emitting diode (LED) and laser diodes are used Optical
in____ sensor.
18. The two main sections of motor starters are ____ and Contactor
overload protection.
19. In general, a relay consists of a magnetic core and its Contacts
associated coil, ____ spring, armature, mounting, and
terminals.
20. _____ applications are useful where the motor is to Plugging
reverse its direction of rotation.
21. Soft Start
2/6
Study online at https://quizlet.com/_3f1onz
1. A normally open contact disconnects two conducting False
points upon pressing the button.
2. A normally closed switch moves away from the station- True
ary contact upon pressing the button.
3. In a normally open high temperature switch, when it is True
closed, the circuit send a signal that the temperature
is reached maximum limit.
4. When no power is going, the function of a spring in a Disengage two conduct-
normally open switch is to: ing points .
5. The 6-pin push button stainless steel switch's backside Both normally closed and
has 2 pins in the middle, they are? held closed.
6. The main reason to connect a normally open switch's True
pin to an LED light's positive terminal is to supply pow-
er when the button pressed.
7. The 6-pin push button stainless steel switch's backside False
has 2 pins in the middle, if they are normally closed,
they can be used to keep power supply to the escalator.
8. There are huge difference between manaual and au- False
tomatic transfer switches. Manual uses push and pull
relay logic, and the automatic uses plug and unplug
methods.
9. The selection of manual or automatic switch should be None of the above
based on all of the following expect:
10. The ______ coil causes the relay's contact to either close Magnetized or demagne-
or open. tized
1/6
, PROGRAMMABLE LOGIC CONTROLLERS FINAL
Study online at https://quizlet.com/_3f1onz
11. A _____ sensor uses visible, ultraviolet, infrared, or laser Optical
lights and requires both an emitter to generate the
light beam and a detector.
12. A ____ sensor detects an object through the change in Capacitive
the sensor's dielectric
13. A ____ sensor detects the presence of nearby metallic Inductive
objects by measuring changes in magnetic fields.
14. The ____ detects over current thorough the magnetiza- Magnetic overload relay
tion when the line current genrates.
15. A _____ is a control device that uses electromagnetism Solenoid
to convert electrical energy into mechanical motion.
16. A ____ relay is typically used in the control of low-power Control
circuits or other relays.
17. Light-emitting diode (LED) and laser diodes are used Optical
in____ sensor.
18. The two main sections of motor starters are ____ and Contactor
overload protection.
19. In general, a relay consists of a magnetic core and its Contacts
associated coil, ____ spring, armature, mounting, and
terminals.
20. _____ applications are useful where the motor is to Plugging
reverse its direction of rotation.
21. Soft Start
2/6
