Electronic applications with Raspberry Pi

1. How many USB connectors are fitted to a Model A Raspberry Pi?

a) none
b) 1
c) 2
d) 4.

2. At what frequency does the Model B Raspberry Pi’s ARM processor operate?

a) 500 MHz
b) 700 MHz
c) 1 GHz
d) 1.2 GHz.

3. Which one of the connectors is used for GPIO?

a) A
b) B
c) C
d) D.

4. The logic levels used to represent the digital signals on the GPIO connector are:

a) Low (logic 0) = 0V, High (logc 1) = +3.3V
b) Low (logic 0) = 0V, High (logc 1) = +5V
c) Low (logic 0) = +3.3V, High (logc 1) = 0V
d) Low (logic 0) = +3.3V, High (logc 1) = +5V.

5. The Model B+ Raspberry Pi’s GPIO connector (P1) has:

a) 16 pins
b) 26 pins
c) 34 pins
d) 40 pins.

6. The supply voltages available from the Raspberry Pi’s GPIO connector (P1) are:

a) +3.3V only
b) +3.3V and +5V
c) +5V and +12V
d) +3.3V, +5V and +12V.

7. How much RAM is available in a Model A Raspberry Pi?

a) 256 MB
b) 512 MB
c) 1 GB
d) 2 GB.

8. Which one of the following commands will enable you to start the Raspberry Pi’s graphical user interface (GUI)?

a) gui
b) python
c) startx
d) system.

9. Short sections of Python code can be called and re-used many times in a program when they are written as:

a) The amplifier has good low-frequency and good high-frequency initialisation routines
b) user-defined functions
c) exception handlers
d) startup routines.

10. On the Raspberry Pi’s SPI bus, the signal referred to as MOSI is:

a) an output from the master and an input to the slave
b) an input to the master and an output from the slave
c) an input to both the master and the slave
d) an output from both the master and the slave.

11. How many chip select lines are provided on the Raspberry Pi’s SPI bus?

a) none
b) 1
c) 2
d) 4.

12. Which one of the following gives the maximum number of devices supported by the Raspberry Pi’s I2C bus?

a) 32
b) 64
c) 127
d) 255.

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