Title: M3L2 Quiz
Course: WIND 100WH Introduction to Wind Energy > Section: WIND 100WH Introduction to Wind Energy

Q: Referring to the image above, what causes output zero to become active?
- When input zero is active and input one is not active
- Only when input zero is active and input one is active
- When either or both input zero and input one are active
- none of the above
A: When either or both input zero and input one are active

Q: Output zero allows the second rung of the logic circuit to function.
- True
- False
A: True

Q: To make output one active, what must happen?
- Output zero must be active and inputs two and three must both be active
- Output two must be active and inputs zero and three must also be active
- Input zero and input three must both be active
- None of the above
A: Output zero must be active and inputs two and three must both be active

Q: The above rung-logic symbol and notation indicates an internal program input, which is controlled by ______________.
- output zero
- input zero
- a timer
- It is not a practical symbol.
A: output zero

Q: Inputs two and three act as a two-input OR function.
- True
- False
A: False

Q: Referring to the image above - Input field devices are attached to the input card
of the PLC with the program mentioned in questions one through five. SW 1 and SW 2
are normally-open switches. PSW 1 is a normally-open pressure switch, which closes
when the pressure reaches 200PSI. TSW 1 is a normally-open temperature switch, which
closes when the temperature reaches 150 degrees Fahrenheit. Output zero is connected
to a light bulb, which lights when output zero becomes active. When active, output one
turn a motor on.

When does the indicator lamp turn on?
- when output zero is inactive
- only when both SW 1 and SW 2 switches are closed
- if PSW 1 and TSW 1 are closed
- if either or both SW 1 or SW 2 switches are closed
A: if either or both SW 1 or SW 2 switches are closed

Q: Referring to the image above - Input field devices are attached to the input card
of the PLC with the program mentioned in questions one through five. SW 1 and SW 2
are normally-open switches. PSW 1 is a normally-open pressure switch, which closes
when the pressure reaches 200PSI. TSW 1 is a normally-open temperature switch, which
closes when the temperature reaches 150 degrees Fahrenheit. Output zero is connected
to a light bulb, which lights when output zero becomes active. When active, output one
turn a motor on.

The indicator lamp illuminates when _____________.
- output zero is active
- either or both SW 1 and SW 2 switches are closed
- the second rung is now ready
- all of the above
A: all of the above

Q: Referring to the image above - Input field devices are attached to the input card
of the PLC with the program mentioned in questions one through five. SW 1 and SW 2
are normally-open switches. PSW 1 is a normally-open pressure switch, which closes
when the pressure reaches 200PSI. TSW 1 is a normally-open temperature switch, which
closes when the temperature reaches 150 degrees Fahrenheit. Output zero is connected
to a light bulb, which lights when output zero becomes active. When active, output one
turn a motor on.

Switches PSW 1 and TSW 1 are both closed, but the motor does not run. Assuming the program is correct, what corrective step/s should be taken to fix this fault?
- Ensure indicator lamp is illuminated and not faulty.
- Check that either or both SW 1 and SW 2 are closed and working properly.
- Check the PSW and TSW switches for faults and make certain they are both closed.
- All of the above
A: All of the above

Q: Referring to the image above - Input field devices are attached to the input card
of the PLC with the program mentioned in questions one through five. SW 1 and SW 2
are normally-open switches. PSW 1 is a normally-open pressure switch, which closes
when the pressure reaches 200PSI. TSW 1 is a normally-open temperature switch, which
closes when the temperature reaches 150 degrees Fahrenheit. Output zero is connected
to a light bulb, which lights when output zero becomes active. When active, output one
turn a motor on.

What conditions must be met in order for the motor to run?
- Somewhere within the system a temperature of 150 degrees Fahrenheit and pressure of 200PSI must both be met.
- Either or both switches SW 1 and SW 2 must be closed.
- All of the above
- None of the above
A: All of the above

Q: Referring to the image above - Input field devices are attached to the input card
of the PLC with the program mentioned in questions one through five. SW 1 and SW 2
are normally-open switches. PSW 1 is a normally-open pressure switch, which closes
when the pressure reaches 200PSI. TSW 1 is a normally-open temperature switch, which
closes when the temperature reaches 150 degrees Fahrenheit. Output zero is connected
to a light bulb, which lights when output zero becomes active. When active, output one
turn a motor on.

Inputs become active when they receive a proper input voltage. When activated, outputs supply a voltage for field devices.
- True
- False
A: True