Sierra College CIE Jim Weir

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CIE-1 Quiz 2

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1: Electrical pressure between two points of a circuit is measured in: amperes
watts
volts
ohms
2: Quantities (numbers) of electrons is measured in: coulombs
ohms
watts
volts
3: Electrical current (number of electrons passing by any point in a circuit) is measured in: volts
amperes
coulombs
watts
4: The resistance of a substance is measured in: coulombs
watts
volts
ohms
5: The instantaneous power used in a circuit is measured in: volts
coulombs
watts
amperes
6: You go on vacation for two weeks and leave a 75 watt bulb burning. Your power company charges you 18 cents per kilowatt-hour for energy. How much did this cost you?: $45.40
$4.54
45 cents
19 cents
7: The relationship between "milli" and "kilo" is: one thousand
ten thousand
one million
one billion
8: The graphical (as opposed to "picture") drawing of a circuit is called a: schematic
template
pictorial
sketch
9: A component with a reference designator of Q302 is a: quartz crystal
transistor
relay
diode
10: A pointer-style current meter may be moving: magnet or spring
coil or spring
spring or pointer
magnet or coil
11: Convert 0.0003 amperes to microamperes: 3
30
300
3000
12: An ammeter measures in __________ with the circuit and the voltmeter measures in _____________ with the circuit.: series, parallel
parallel, series
parallel, parallel
series, series
13: In electronics, the positive lead is generally color coded ______ while the negative lead is __________: black, green
red, green
red, black
green, black
14: A handy computer program for repetitive calculations is: Access
Excel
Word
Acrobat
15: You installed a light into your 12 volt automoble that has a 5 watt rating. It will draw about ____________ of current: about 12 volts
about 60 watts
about 30 ohms
about half an ampere
16: Digital multimeters are _________ expensive than a "pointer" style analog multimeter and generally _______ easy to read: less, less
less, more
more, less
more, more
17: The fuse in the multimeter in the lecture notes should be replaced with one of: 250 mA
250 amperes
R21 mA
A chewing gum wrapper
18: The "trainer" is: a truly evil machine
a convenient way of interconnecting and powering experimental circuits
a complex device that is very confusing
not used in this class
19: On the trainer relative to the black terminal, the _______ terminal is a constant +5 volts, the ___________ terminal may be adjusted for voltages between -5 and -15 volts and the ____________ terminal may be adjusted for voltages between +5 and +15 volts: yellow, blue, red
red, yellow, blue
blue, yellow, red
red, blue, yellow
20: The two leads of an LED are the: anode and the heptode
cathode and the diode
anode and the cathode
diode and the anode
21: For an LED to emit light it must be "forward biased" with the __________ positive with respect to the ___________: anode, cathode
cathode, anode
anode, diode
diode, anode
22: A 470 ohm 5% resistor is color coded: yellow-violet-red-gold
violet-yellow-brown-gold
yellow-violet-brown-gold
yellow-violet-black-gold
23: The LED emits light: from a point source at the center of the diode chip
over the whole body of the diode chip
over the whole surface of the outside package
only when reverse biased
24: An LED with a deeply colored plastic housing is said to be in a _________ package: water clear
commercial
transparent
diffused
25: In order to clearly see the "chip" itself inside the package glow the current through the LED must be: very low
20 mA
very high
zero