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CIE-10 Quiz 3

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1: The NUCLEUS of an atom contains

protons only
neutrons only
protons & neutrons only
protons, neutrons & electrons

2: The transistor was invented at

Intel
Bell Labs
General Electric Labs
Edison Labs

3: The first microprocessor based computer was introduced by

Bill Gates
IBM
Robert Noyce
Steve Jobs

4: The first LEDs were associated with

RCA, 1955, gallium arsenide
GE, 1962, silicon dioxide
Intel, 1952, germanium nitride
National Semiconductor, 1957, tungsten

5: Electronic solder generally has a core of

eutectic tin
pine sap
elemental silicon
dihydrogen monoxide

6: To enter 37,000 on a hand calculator, you would push these buttons (neglect the commas):

3700
3,7,ENG,3
3,.,7.SIN,4
3,.,7,EXP,4

7: The unit of electromagnetic force or pressure is named after

Luigi Galvani
Andre Ampere
Allesandro Volta
Georg Ohm

8: A very large amount of electrons flowing by a point in an electric circuit is named after

Luigi Galvani
Andre Ampere
Allesandro Volta
Georg Ohm

9: The relationship of voltage to current in a circuit is named after

Luigi Galvani
Andre Ampere
Allesandro Volta
Georg Ohm

10: Resistor: gray-red-orange-gold

82K ohm 5%
823 ohm 5%
8200 ohm 5%
820 ohm 5%

11: A light bulb consumes 20 watts when connected across a 12 volt battery. How much does the light bulb consume when in series with a 5 ohm resistor?

3.3w
6.7w
13.4w
20w

12: You have 150, 330, and 470 ohm resistors in series across a 9 volt battery. The current draw from the battery is

947 mA
94.7 mA
9.47 mA
9.47 A

13: The colors on the trainer power supply connectors for the +5, +(5-15 variable),-(5-15 variable), and common or ground are (respectively)

blue, red, yellow, black
red, yellow, black, blue
yellow, blue, black, red
red, yellow, blue, black

14: A resistor made out of any material (carbon, wire, etc.) will have LESS resistance if it is

short and thin
short and fat
long and skinny
long and fat

15: One of the forms of Ohm's/Watt's law is that

P= I * (R squared)
I= R / E
E= (squareroot of (P * R))
R= (P squared) / I

16: An 18K ohm 5% resistor could be anywhere between ________ and _________ and still be within tolerance

17100, 18900
16k, 20k
18K +/- 1.8k
0 and 90k

17: How much error is there in a resistor marked 470 k ohms if a multimeter reads it as 461 k ohms (plus/minus percent)

1%
2%
5%
10%

18: Plus and minus how many ohms can a 680 ohm 5% resistor have

6.8
13.6
34
68

19: To be a good conductor, the atom must

be a metal
hav an equal number of protons and neutrons in the nucleus
be a noble gas
have its outer electron shell nearly empty

20: The very best conductor at room temperature is

gold
silver
copper
mercury

21: You have a piece of copper wire that measures 4 ohms from end to end. A steel wire of the same length and gauge would measure

4 ohms
18 ohms
36 ohms
264 ohms

22: According to wirecalc.xls spreadsheet, if you run 10 amperes through #34 wire it will

glow
fuse/melt
become a superconductor
become a high value resistor

23: Barium titanite is a(n)

insulator
conductor
semiconductor
LED material

24: A 4.7 ohm 5% quarter watt resistor connected across a car battery will

conduct about 4 amperes of continuous current
transmogrify
burn up
obey Oersted"s Law

25: An SCR is

a high gain transistor
a switch with an on-off lead
a triggered ("latching") switch
another name for a piezo buzzer

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