ETA Game Cert Flashcards

1
Q

What device is an AC semiconductor switching device?

A

Triac

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2
Q

When using a digital voltmeter, which polarity is the read lead?

A

Positive

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3
Q

Identify the movement of electrons in terms of force

A

Voltage

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4
Q

What device channels money to the hopper or drop?

A

Coin Guide

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5
Q

Which device is used to increase, decrease and isolate AC voltage?

A

Transformer

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6
Q

What minimum voltage is needed to make a (SCR)silicon semiconductor conduct electricity?

A

0.7 VDC

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7
Q

What type of memory chip holds game configuration data?

A

EPROM, PROM, ROM

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8
Q

What is the section between the bill validator head and the cassette?

A

Transport

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9
Q

Which electronic device is used in a filter?

A

Capacitor

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10
Q

Identify the movement of electrons in terms of volume

A

Current

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11
Q

Coins that are accepted by the coin comparator come out

A

Bottom Right

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12
Q

Identify the unit of measure for Voltage

A

Volts

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13
Q

What type of transformer has a primary of 110V AC coming in and 50V AC coming out of secondary?

A

Step Down

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14
Q

What type of circuit allows current to flow through multiple pathways?

A

Parallel Circuit

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15
Q

What is a coil of wire with a fixed iron core called?

A

Relay

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16
Q

Electrons have what type of electrical charge

A

Negative

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17
Q

When using a schematic to analyze a circuit, what do 2 lines crossing at right angles with a dot in the middle illustrate?

A

The wires cross and electrically touch

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18
Q

When using an Ohmmeter, a technician should always ensure the equipment being tested is

A

Off

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19
Q

Which one of the following would be changed in a coin comparator to convert it from a nickel to a quarter?

A

Coin

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20
Q

If the total current in a circuit is 2 Amps and the total resistance is 200 Ohms, what is the total voltage?

A

400 Volts

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21
Q

What is the tolerance of a resistor that has no 4th band?

A

20%

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22
Q

If a resistor has the color bands red, blue, black, gold. What is the value?

A

26 Ohms +/- 5%

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23
Q

A resistor with 5 bands violet, yellow, red, red, and brown. Has a value of what?

A

74.2k Ohms +/- 1%

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24
Q

What is the most common type of resistor?

A

Carbon

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25
What device is an electrical one-way valve?
Diod
26
What does a coin comparator use to determine the validity of a coin?
Eddy Currents
27
What device has terminals called anode, cathode, and gate?
SCR - Selective Catalytic Reduction
28
When viewing a schematic with a diode symbol, a technician must be aware that ____ flow ____ the arrow
Electrons .......... With
29
An LED is a ____ junction device that when ____ biased emits visible light.
PN .......... Forward
30
A Zener diode
Regulates voltage
31
A TRIAC is a ____ terminal device that is similar to a ____.
Three .......... SCR
32
What is the predominant input signal for an AND gate?
Low
33
What are the 2 value ratings found on an electrolytic capacitor?
Voltage and MicroFarads
34
What device is used to change AC to DC in a power supply?
Rectifier
35
Which of the following is a DC semiconductor switching device
Transistor
36
What type of transistor is used for high current devices and has a built-in protective diode?
None of the above
37
Which component has a main terminal 1, main terminal 2, and a gate?
Triac
38
The cassette head in the bill validator head checks for what in a bill?
Metal
39
Which device is used to compare 2 voltage signals?
Op Amp
40
When using a multi-meter, what should the meter be set to when checking a transistor?
Diode
41
An R/C time constant is made up of what 2 components?
Resistor and Capacitor
42
A schematic showing a bipolar transistor symbol with the arrow pointing toward the base, is constructed with which 3 substrates?
PNP
43
What device, if you apply a plus voltage to it to turn on, will stay on when you remove the voltage?
SCR (0.7 VDC)
44
When a bill validator decides that a bill is acceptable, it sends a signal to the slot machine or vending machine. It stacks the bill only when...
the machine sends the signal back to the validator saying it is ok.
45
What voltage range represents a high signal in digital logic circuits?
0 VDC to 5 VDC
46
What is a resistor called, that is not in series and has a positive voltage supplied to it, which in turn supplies a small positive voltage to a distinct part of the circuit?
Pull up resistor
47
What is the name of the device that conducts when the circuit gets to 0.7 V
Diac
48
What device is an electrical latch?
R/S Flip Flop
49
Which device contains an LED and a Triac?
Optically Isolated Triac Driver
50
Which device contains a drain, source, and gate?
FET
51
what is an adjustable resistor called?
Potentiometer
52
The printer in a slot machine uses _____ to produce print on the paper.
Heat (Thermal printer)
53
What is the term used for the amount of electrical flow?
Current
54
What device is used to restrict the amount of flow of electricity?
Resistor
55
Which device stores small amounts of electrical charge?
Capacitor
56
What is the +5 VDC hook up on a 74 series IC chip?
Pin 14
57
What device is made up of 4 diodes
Full-wave rectifier
58
what device is used in a clock circuit to synchronize the clock signal?
Crystal
59
What are the 2 types of electrolytic capacitors?
Axial lead & Radial lead
60
Name the 2 terminals of the transistor that act as a single-pole switch.
Emitter & Collector
61
What is the name of a transistor that turns on with light?
Optic Sensor
62
What is the name of the device which has an LED and a transistor that turns on with light, built into an IC chip?
Opto-coupler
63
What component do we put across a solenoid, to protect a transistor or Triac from being damaged from the coils magnetic field collapsing?
Diode
64
If 15 VDC is the source of the circuit and the total resistance is 3 ohms, what is the current value of the circuit?
5 Amps
65
What type of memory chip is volatile?
RAM (Random Access Memory)
66
Where is money held when a bill gets to its final destination?
Dropbox
67
What is the decimal equivalent for binary 11111
31
68
What is the decimal equivalent for the hex number 123
291
69
What is the name of the standard code that uses binary numbers, letters, symbols, and instructions?
ASCII
70
How many times can a PROM chip be programmed?
Once
71
What terminal is used to clear all functions on the MPU?
Reset
72
What lines are used to identify memory locations?
Address Lines
73
When working with an electronics board and semiconductor devices, what safety device should be utilized when handling CMOS components?
Wrist Strap
74
What kind of interference may occur if an RJ45 cable is run over a fluorescent light fixture?
Electromagnetic Interference
75
When it comes to electrical fires, what should be used to put out a fire?
Class C Fire Extinguisher