Arduino Quiz #2: Hardware
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A quiz covering some of the Electronics Hardware issues relevant to Arduino users.
- 1.
The circuit show below is used for questions 1-4: A user has connected the circuits above. What is wrong with the circuit connected to pin D2?- A.
There is no current limiting resistor for the LED.
- B.
Nothing is wrong.
- C.
The LED is inserted backwards.
- D.
Pin D2 may not be used to drive LEDs.
- E.
You should not use an orange wire to connect a red LED.
- 2.Using the circuits show in Question 1, What is wrong with the circuits connected to pin D3?
- A.
The 5V output of an Arduino Uno is insufficient for a series connection of three LEDs
- B.
The resistor value is too high for this combination of LEDs.
- C.
The resistor value is too low for this combination of LEDs.
- D.
Nothing is wrong with the circuit.
- E.
None of the above
- 3.Using the circuits show in Question 1: What is wrong with the circuits connected to pin D4?
- A.
The switch needs a pull-down resistor.
- B.
Pin D4 can not be used as a switch input.
- C.
Nothing is wrong with the circuit.
- D.
Switches should have a current limiting resistor.
- E.
None of the above
- 4.Using the circuits show in Question 1 What is wrong with the circuits connected to pin D5?
- A.
The LED is shorted out.
- B.
The current-limited resistor for the LED has the wrong value.
- C.
Pin D5 should be reserved for Serial
- D.
Nothing is wrong with the circuit.
- E.
None of the above
- 5.
What is wrong with the circuit shown above? (check all that apply)
- A.
The LED is inserted backwards.
- B.
The Arduino cannot operate from a 9V battery.
- C.
The resistor value is wrong.
- D.
The Arduino is unpowered because the protoboard power rails are not fully connected.
- E.
Pin D8 can not be used to drive an LED.
- 6.
A user has wired up an Arduino Protoshield as shown above. Which of the schematics below match the wiring?
- A.
A
- B.
B
- C.
C
- D.
None of the above
- 7.
The image below is used for several questions. In the circuit shown above, what is the function of components R15 and R16?
- A.
Current Limiting Resistor.
- B.
Pull-up resistor.
- C.
Pull-down resistor.
- D.
None of the above
- 8.In the image from the question above, what is the function of D8 and D9?
- A.
Kickback prevention diode
- B.
Indicator LED
- C.
Current limiting device
- D.
Light Sensor
- E.
None of the above
- 9.In the image above, what is the function of R14?
- A.
Current limiting resistor
- B.
Pull-up resistor
- C.
Pull-down resistor
- D.
Light sensor
- E.
None of the above
- 10.
(This is the same image as before; it's repeated for better grouping with the questions) In the image above, what is the function of R17?
- A.
Current limiting resistor
- B.
Pull-up resistor
- C.
Pull-down resistor
- D.
Light Sensor
- E.
None of the above
- 11.In the image above, what is the function of D10?
- A.
Indicator LED
- B.
Kickback prevention diode
- C.
Pull-up resistor
- D.
Light sensor
- E.
None of the above
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