1) How many valence electrons are there in the element Silicon? a) 2 b) 3 c) 4 d) 5 e) 6 f) 7 2) The process of adding impurities to an intrinsic semiconductor is called a) atomic modification b) recombination c) ionization d) doping e) metallurgy f) isolation 3) It has free electrons on its surface which allow current to pass through easily is called a) Insulator b) semiconductor c) Conductor 4) A technique of joining metal parts together, which involves melting a metal called solder or lead into spaces between metal components. a) Doping b) Bonding c) Rewinding d) Soldering e) Joining 5) It is very useful to manipulate the small electronics components. Often used in tiny components which will hold during assembly or soldering process. a) Pliers b) Tweezers c) Multimeter d) Oscilloscope e) Voltage Power supply f) Wire stripper 6) It removes the insulation from electric cables to make contact. a) Pliers b) Tweezers c) Multimeter d) Oscilloscope e) Voltage power supply f) Wire stripper 7) It has a magnifying glass, clippers that can keep parts in place, and an adjustable jig. a) Wire stripper b) Voltage regulator c) Soldering iron d) Solder remover e) Helping hand tool f) Tweezer 8) Solder is usually made up of what metal? a) Aluminum b) Silver c) Lead d) Copper e) Gold f) Iron 9) what will be displayed in a multimeter if the measured value is higher or lower than the expected value? a) 0 b) 1 c) 2 d) 3 e) 4 f) 5 10) What type of chemical bonding is present between atoms in a semiconductor? a) Covalent Bonding b) Metallic Bonding c) Ionic Bonding

Bridging Learning Gap - Week 1 (Electronics)

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