Question 1

When gates are used, their inputs must be connected to a definite high or low.

Accepted Answer

A) True 
 B)False  True

Question 2

What happens when a basic stop-start, push-button circuit is used with an electronic control system?

Accepted Answer

When the START button is pushed, current flows through the relay coil and normally closed overload contact to the power source. When current flows through relay coil M, the contacts connected parallel to the START button close. These contacts maintain the circuit to coil M when the START button releases and returns to its open position. The circuit will continue to operate until the STOP button is pushed and breaks the circuit to the coil.

Question 3

When the input of the INVERTER becomes low, its output becomes ____________________.

Accepted Answer

high

Question 4

The programming terminal, or ____________________ terminal, is used to program the CPU.

Accepted Answer

The answer of The programming terminal, or ____________________ terminal, is...

Question 5

The number of internal relays and timers contained in a PLC is determined by the physical size of the computer.

Accepted Answer

A) True 
 B)False

Question 6

The push button can be adapted to produce a high at the input instead of a low by adding a(n) ____.

Accepted Answer

A)  OR 
B)  NOR 
C)  NAND 
D)  INVERTER 
A)  OR 
B)  NOR 
C)  NAND 
D)  INVERTER

Question 7

What are the four primary parts of programmable logic controllers?

Accepted Answer

Programmable logic controllers can be di

Question 8

A circuit that can be turned on with one push button and turned off with another can be constructed with ____ gate(s).

Accepted Answer

A)  an AND and an OR 
B)  two AND 
C)  an INVERTER and a NAND 
D)  two NAND 
A)  an AND and an OR 
B)  two AND 
C)  an INVERTER and a NAND 
D)  two NAND

Question 9

Discuss I/O capacity.

Accepted Answer

One factor that determines the size and

Question 10

What will happen if the motor is overloaded in a basic stop-start, push-button circuit with overload protection?

Accepted Answer

If the motor is overloaded, it will caus

Question 11

Line isolation is generally provided in one of two ways. The most popular is with ____________________ isolation.

Accepted Answer

The answer of Line isolation is generally provided in one...

Question 12

The ____ is the "brains" of the programmable logic controller.

Accepted Answer

A)  power supply 
B)  program loader 
C)  CPU 
D)  I/O 
A)  power supply 
B)  program loader 
C)  CPU 
D)  I/O

Question 13

The overload contact must be connected in such a manner that it will cause the output of the circuit to turn off if it opens.

Accepted Answer

A) True 
 B)False

Question 14

The PLC is a special type of computer designed to perform a special function.

Accepted Answer

A) True 
 B)False

When gates are used, their inputs must be connected to a definite high or low.

What happens when a basic stop-start, push-button circuit is used with an electronic control system?

When the input of the INVERTER becomes low, its output becomes ____________________.

The programming terminal, or ____________________ terminal, is used to program the CPU.

The number of internal relays and timers contained in a PLC is determined by the physical size of the computer.

The push button can be adapted to produce a high at the input instead of a low by adding a(n) ____.

What are the four primary parts of programmable logic controllers?

A circuit that can be turned on with one push button and turned off with another can be constructed with ____ gate(s).

Discuss I/O capacity.

What will happen if the motor is overloaded in a basic stop-start, push-button circuit with overload protection?

Line isolation is generally provided in one of two ways. The most popular is with ____________________ isolation.

The ____ is the "brains" of the programmable logic controller.

The overload contact must be connected in such a manner that it will cause the output of the circuit to turn off if it opens.

The PLC is a special type of computer designed to perform a special function.

General Principles of Motor Control, Symbols and Schematic Diagrams

Manual Starters and Overload Relays

The Control Transformer, Relays, Contactors, and Motor Starters

Timing Relays, Pressure Switches and Sensors

Float Switches, Flow Switches and Sensors

Limit Switches and Phase Failure Relays

Temperature Sensing, Devices M Solenoid and Motor Operated Valves

Hall Effect Sensors and Proximity Detectors

Basic Control Circuits and Photodetectors

Schematics, Wiring Diagrams Circuit (1), Timed Starting for Three Motors Circuit (2)

Float Switch Control of a Pump and Pilot Lights Circuit (3), Developing a Wiring Diagram Circuit (1)

Developing a Wiring Diagram Circuit (2) and Developing a Wiring Diagram Circuit (3)

Installing Control Systems and Reading Large Schematic Diagrams

Multiple Push Button Stations and Hand-Off-Automatic Controls

Forward-Reverse Control, Jogging and Inching

Dc Motors and Sequence Control

Solid-State Dc Drives and Starting Methods for DC Motors

Stepping Motors, the Motor and Starting Methods

Autotransformer Starting , Resistor and Reactor Starting for Ac Motors

Wye-Delta Starting, Part Winding Starters

Braking , Consequent Pole Motors, Variable Voltage and Magnetic Clutches

Variable Frequency Control

Troubleshooting, Motor Installation and Developing Control Circuits

Digital Logic and the Bounceless Switch

Programming a PLC and Analog Sensing for Programmable Controllers

Filters

Exam 25: Programmable Logic Controllers and Start-Stop Push Button Control

When gates are used, their inputs must be connected to a definite high or low.

What happens when a basic stop-start, push-button circuit is used with an electronic control system?

When the input of the INVERTER becomes low, its output becomes ____________________.

The programming terminal, or ____________________ terminal, is used to program the CPU.

The number of internal relays and timers contained in a PLC is determined by the physical size of the computer.

The push button can be adapted to produce a high at the input instead of a low by adding a(n) ____.

What are the four primary parts of programmable logic controllers?

A circuit that can be turned on with one push button and turned off with another can be constructed with ____ gate(s).

Discuss I/O capacity.

What will happen if the motor is overloaded in a basic stop-start, push-button circuit with overload protection?

Line isolation is generally provided in one of two ways. The most popular is with ____________________ isolation.

The ____ is the "brains" of the programmable logic controller.

The overload contact must be connected in such a manner that it will cause the output of the circuit to turn off if it opens.

The PLC is a special type of computer designed to perform a special function.

General Principles of Motor Control, Symbols and Schematic Diagrams

Manual Starters and Overload Relays

The Control Transformer, Relays, Contactors, and Motor Starters

Timing Relays, Pressure Switches and Sensors

Float Switches, Flow Switches and Sensors

Limit Switches and Phase Failure Relays

Temperature Sensing, Devices M Solenoid and Motor Operated Valves

Hall Effect Sensors and Proximity Detectors

Basic Control Circuits and Photodetectors

Schematics, Wiring Diagrams Circuit (1), Timed Starting for Three Motors Circuit (2)

Float Switch Control of a Pump and Pilot Lights Circuit (3), Developing a Wiring Diagram Circuit (1)

Developing a Wiring Diagram Circuit (2) and Developing a Wiring Diagram Circuit (3)

Installing Control Systems and Reading Large Schematic Diagrams

Multiple Push Button Stations and Hand-Off-Automatic Controls

Forward-Reverse Control, Jogging and Inching

Dc Motors and Sequence Control

Solid-State Dc Drives and Starting Methods for DC Motors

Stepping Motors, the Motor and Starting Methods

Autotransformer Starting , Resistor and Reactor Starting for Ac Motors

Wye-Delta Starting, Part Winding Starters

Braking , Consequent Pole Motors, Variable Voltage and Magnetic Clutches

Variable Frequency Control

Troubleshooting, Motor Installation and Developing Control Circuits

Digital Logic and the Bounceless Switch

Programming a PLC and Analog Sensing for Programmable Controllers

Filters