preclass quizzes 73 & 75 & 19

Input elements and output elements may be shown relative to the PLC program, but they are not part of the PLC program.
True False

All symbols in a PLC prgram are programming statements, and they do not represent input or output elements
True False

A PLC ladder logic program shows diagrams of input elements and output elements.
True False

The LLCD, that electricians are so familiar with, looks just like a ladder logic PLC program, and it functions the same way.
True False

The purpose for the ladder logic circuit diagram (LLCD) is to simplify and organize a large number of loads and contacts (switches).
True False

When several rungs are combined the whole circuit diagram looks like a

The horizontal part from left to right is caled a

The vertical line from top to bottom on the right represents the

The vertical line from top to bottom on the left represents the

The symbol -||- represents an electrical ____ and is drawn on the ______.

The symbol -()- represents an electrical ____ and is drawn on the ______.

Any -|/|- input instruction will be true if the corresponding bit in memory is

Any -| |- input instruction will be true if the corresponding bit in memory is

The PLC program in Fig-2 is more efficient because it

In Figure-4, rung-1 is a _____ rung.

In Figure-4, the motor should not be energized if memory-M contains a ____.

In Figure-4, the motor should be energized if memory-M contains a ____.

In Figure-3, instruction-B will be _____ if a non-conventional NO-Stop-switch-B is not pressed, which makes memory-bit B=0.
True False

In Figure-3, instruction-B will be _____ if a non-conventional NO-Stop-switch-B is pressed, which makes memory-bit B=1.
True False

In Figure-4, instruction-B will be _____ if the Stop switch is not pressed.
True False

In Figure-4, instruction-B will be _____ if the Stop switch is pressed.
True False

In Figure-4, instruction-A will be _____ if the Start switch is not pressed
True False

In Figure-4, instruction-A will be _____ if the Start switch is pressed.
True False

In Figure-3, memory-B will contain a ____ if a non-conventional NO-Stop-switch-B is not pressed.

In Figure-3, memory-B will contain a ____ if a non-conventional NO-Stop-switch-B is pressed.

In Figure-4, memory-B will contain a ____ if the Stop switch is not pressed.

In Figure-4, memory-B will contain a ____ if the Stop switch is pressed.

In Figure 4, memory-A will contain a ____ if the Start switch is not pressed.

In Figure 4, memory-A will contain a ____ if the Start switch is pressed.

In Figure-4, the symbol "R" references:

In Figure-4, the symbol "M" references:

In Figure-4, the symbol "B" references:

In Figure-4, symbol "A" references:

The cooling of the power resistor (oven) is

The heat to the power resistor (oven) is

The current out of LabVIEW is [0-10V]/(10.820k Ohms).
True False

The 0-10V control signal that drives the Fan-Driver Circuits comes from

The primary circuit at the bottom is the

The voltage applied to the thermistor bridge is regulated to a constant value that is approximately

The opamp output voltage in the thermistor circuit is

The voltage across the 3.9k Ohm resistor is

The voltage across the thermistor is

The gain of the opamp in the Thermistor Circuit is

The opamp configuration in the Thermistor Circuit is a

The fixed resistors in the thermistor bridge were selected so that the opamp output voltage is in the range 0 to 10V.
True False

The thermistor temperature range is room temperature to 120 degF.
True False

The thermistor is a ______ resistor, which varies as a function of _____.

The thermistor is a resistor. When combined with three other resistors, the four resistors form a

The thermistor is shown as a ___ in a circle.

The output of the Thermistor circuit becomes input to

The output of the Thermistor circuit is a voltage signal [0-10]volts.
True False

The top circuit is the

Three circuits are shown:

The heat chamber is a power resistor (oven), and inside