06 - Unit review

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Multiple choice

1. This chip is sold in a TO-92 _________

   A) Package; B) casing; C) housing

2. A power supply provides direct current. If a device is meant to work in the range from 2.7V to 5.5V and you choose to power it with 5 volts…
   • A) It will work.
   • B) It will not work.
   • C) You will fry it.

3. This (above) is a RAM module.
   • A) RAM memory is not volatile. Written data remains after shutdown.
   • B) It has a notch to prevent people from connecting it the other way around.
   • C) It will work forever.

4. The chip in the picture above is:
   • A) A GPU
   • B) A 5G modem.
   • C) A GPS receiver.
   • D) Many chips integrated in the same package, this is, a SoC.

5. The parts highlighted in the picture above are called:

   A) Castellations; B) pins; C) jumpers

6. You screw the screws using a

   A) rework station; B) screwdriver; C) wrench

7. A syringe is used to apply solder paste (used in hot air soldering), typically in SMT (surface mounted technology). (T/F?)
8. A microcontroller (MCU) has a _________ CPU than your computer (microprocessor, MPU).

   A) slower B) faster C) stronger

9. The thing in the picture above is called:

   A) Fan; B) radiator/heatsink; C) Thermal paste.

10. People think memory is the same as storage. But it is not. You use memory to keep the information that is currently in use, while storage is more ________, and does NOT erase itself after shutdown.

    A) Volatile B) fast C) permanent

11. USB is used for _________ peripherals like flash drives.

    A) Internal B) external C) THT

Fill in the gaps

• iron
• better
• speed
• rechargeable
• practical
• display
• learn
• soldered
• common
• solder wire
• temperature

Old consoles have some special charm (*encanto) for the electronics enthusiast. Last month the teacher showed us a modded Game Boy.

Since the original image is so dark, he added a new _________ (1) with _________ (2) quality. Then he added _________ (3) batteries. This made the console more _________ (4). Then he _________ (5) an LED. For this last modification, he showed us the two, most _________ (6) soldering techniques. The soldering _________ (7) is a hot metal stick that melts the _________ (8) using physical contact. Then he showed us the hot air technique. In this technique not only you have to control _________ (9) but also the air _________ (10).

I am afraid of getting burnt when soldering, but if I don’t try, I will never _________ (11).

Listening

Answers 1-5:

• minutes
• issues
• answer
• internal
• work

Oh my god! The teacher is going to be mad at me. The Internet doesn’t _________ (1). Not in my computer. I don’t know what I did. Everything worked five _________ (2) ago but now…

It’s all Martin’s fault. His computer had no Internet and he asked me to explain him how to fix his connection _________ (3). So I looked up the flow chart in chapter five. I showed him how to check the link in the ethernet cable. I just unplugged and plugged again my ethernet cable and then my connection failed. I had no ping to the Internet or the _________ (4) network. I tried pinging the router but I had no _________ (5). I was stuck (*atascado). I had no idea what to do.

Then Martin’s network connection started to work. I was angry but Martin felt bad and came to _________ (6) me. He started the _________ (7) and typed ipconfig. The results showed I didn’t have any IP. So Martin replaced my network cable and tried ipconfig again… _________ (8)! I had recovered my IP, netmask and gateway addresses.

Then, he pinged some IP’s to _________ (9) the connection. First the router, then 8.8.8.8, and lastly, google.com. My connection was _________ (10) at last.

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