Test Flashcards
(152 cards)
1
Q
This type of diagram is used where a set path is followed to its conclusion with intermediate decision steps that might be required.
A
Flow chart.
2
Q
A capacitor consists of:
A
Two conductors separated by an insulator.
3
Q
Section 3 of the MSDS is:
A
Physical and chemical properties.
4
Q
Digital circuit with three inputs for carry in and two bits with sum and carry outputs.
A
Full-adder.
5
Q
Which of the following shows functional units represented by blocks?
A
Block diagram.
6
Q
A document that provides a method of determining the empty weight and empty weight center of gravity of an aircraft.
A
Aircraft weight and balance.
7
Q
A device used to protect the components and wiring in a circuit in the event of a short circuit. It is constructed of a thin bimetallic strip that expands with heat.
A
Circuit breaker.
8
Q
A switch that is the most susceptible to shock and vibration in a plane.
A
Toggle switch.
9
Q
In the United States there are 5 common classifications of fires, which are?
A
a,b,c,d,k.
10
Q
This type of battery has the electrodes welded together and has been developed with a high degree of efficiency and dependability.
A
Nickel-cadmium cell.
11
Q
On the schematic symbol of a pnp transistor.
A
The arrow points in on the emitter lead.
12
Q
What type of meter can be used to measure ac currents without breaking open the circuit?
A
Amp-clamp probe.
13
Q
A fuel sensor probe operates as a large ______ while the fuel acts as a dielectric.
A
Capacitor.
14
Q
The manual that will help the technician locate the correct part needed to repair a system.
A
Illustrated parts catalog.
15
Q
An open coil has.
A
Infinite resistance and zero inductance.
16
Q
A mathematical quantity, usually correlated in electronics to a physical quantity such as voltage, current, or resistance.
A
Number.
17
Q
What is the biggest disadvantage of the common-base amplifier.
A
Its low input impedance.
18
Q
Condition of Xl=Xc in an LC circuit to favor the resonant frequency for a maximum in V, I, or Z.
A
Resonance.
19
Q
Who developed the Venturi Tube, which displays the properties of when you accelerate a fluid, the pressure of the fluid drops.
A
Mr. Venturi.
20
Q
What is the resistance for the following values:V= 24 Volts, I= 4 Amps?
A
6.
21
Q
If the secondary current in a step-down transformer increases, the primary current will.
A
Increase.
22
Q
What is the wavelength of a radio wave whose frequency is 15 MHZ?
A
20m.
23
Q
A condition of flight in which the nose of an airplane starts to move in the direction opposite of the intended turn.
A
Adverse yaw.
24
Q
Which of the following is considered one of the better type of conductors?
A
Silver.
25
Section 1 of the MSDS is?
Product and manufacturer identification.
26
Which transistor region is very thin and lightly doped?
The base region.
27
Which of the following does not affect inductance?
Length of the insulation.
28
Any HIGH in will output a LOW, all LOW's in will cause a HIGH?
NOR Gate.
29
An aircraft finish that consists of an acrylic resin base and certain volatile solvents.
Acrylic lacquer.
30
What are the three types of materials used in electronics?
Conductors, semi-conductors, insulators.
31
Which of the following is not a sleeving type?
Synthetic nylon.
32
One of the main applications of a capacitor is to:
Block DC and pass AC.
33
To apply the superposition theorem, all components must be.
Both linear and bilateral.
34
What is impedance?
The resistance of a component at a given frequency.
35
Which of the following cells is a secondary cell?
-Nickel-Cadmium (NiCd)
-Nickel-Metal Hydride (NiMH)
-Lithium-ion (Li-ion)
-Lithium-ion Polymer (LiPo)
36
What is the transistor called that is fabricated as two complementary SCRs in parallel with a common gate terminal?
Triac.
37
Which of the following is true when the audio output of a radio is reduced by 3 dB?
The power is reduced by half.
38
In electromagnets, the effect of magnetic induction lagging in time behind the applied magnetizing force.
Hysteresis.
39
This is between two conductors an could cause output signal amplitude to decrease. It is normally not a problem in audio amplifiers. Usually exists between circuit components and wiring.
Stray capacitance.
40
A temperature sensitive resistor that when it is heated its resistance will decrease.
Thermistor.
41
What is the minimum size an aluminum wire can be?
6 AWG.
42
The left-hand rule for solenoids states that:
if the fingers of the left hand encircle the coil in the same direction as electron flow, the thumb points in the direction of the north pole.
43
Permanently installed weight in an aircraft used to bring the center of gravity into the allowable range.
Ballast.
44
A constant-voltage source:
Has very low internal resistance.
45
Measures the integrity of fabric coverings on aircraft.
Bettsometer.
46
An expensive test instrument that can sample and store many channels of digital information.
Logic analyzer.
47
Which of the following is not one of the components that cause low frequency gain loss in a cascade amplifier?
Oscillators.
48
Section 2 of the MSDS is:
Chemical and common name of hazardous ingredients.
49
A fundamental binary storage device, sometimes called flip-flop.
Latch.
50
Electrons are arranged in ____ around a nucleus.
Shells.
51
A differentiator is a circuit whose.
Output is proportional to the change in applied voltage.
52
When the collector current in a transistor is zero, the transistor is?
Cut off.
53
Which of the following is not a basic part of the relay?
Switch.
54
A function expressing a relationship between variable input(s) to a system device and the resultant output.
Logic function.
55
Which theorem provides a shortcut for finding the common voltage across any number of parallel branches with different voltage sources.
Millman's theorem.
56
With bar magnets:
Unlike poles attract each other and like poles repel each other.
57
Electronic component that does not amplify or rectify.
Passive component.
58
Which of these will be most useful for insulation at UHF frequencies?
Mica.
59
Current amounts between ____ and _____ can be lethal.
100 mA, 200 mA.
60
This treatment consists of boiling magnesium in a solution of sodium dichromate. It provides good paint base and protective qualities on all standard wrought magnesium alloys except the magnesium-thorium alloys.
Dichromate treatment.
61
ESD Class 1 has a voltage range of?
200-1,900.
62
Section 4 of the MSDS contains:
Physical hazards.
63
Which is not a requirement that MIL SPEC crimpers must meet?
Calibration.
64
Which of the following does not need a temperature sensor?
Waveguide pressure temp.
65
A ______ is two inductors separated by a core.
Transformer.
66
In a high-pass filter, the shunt component does what?
Attenuates all frequencies below the cut off.
67
A series of partitions inside an aircraft fuel tank.
Baffle.
68
What type of wave is made up of sine waves of the fundamental frequency and all the odd harmonics.
Square wave.
69
Connection devices that connect circuits together.
Buffers.
70
A mentally or emotionally disruptive or upsetting condition occurring in response to adverse external influences and capable of affecting physical health.
Stress.
71
The Shel Model is another human factors tool, the goal is to determine not only what the problem is, but also?
Where and why it exists.
72
This is a line that directs the reader from a note to a corresponding detail.
Leader line.
73
The movement of an aircraft about its longitudinal axis.
Roll.
74
The current that flows through all resistors in a loaded voltage divider.
Bleeder current.
75
The opposition to the creation of magnetic lines of force in a magnetic circuit is known as:
Reluctance.
76
This is the stability about the vertical axis.
Yaw stability.
77
What is the term used to express the amount of electrical energy stored in an electrostatic field?
Joules.
78
Which of the following is not a lead of a bipolar transistor?
Source.
79
A feeling of contentment or self-satisfaction, especially when coupled with an unawareness of danger, trouble, or controversy.
Complacency.
80
A record containing the operational or maintenance history of the aircraft.
Aircraft log.
81
The flow of electrons in one direction throughout a circuit with a constant voltage and current.
Direct current.
82
When towing an aircraft ensure all of the following are done properly, except:
Ensure all entrance doors are open and ladders are retracted.
83
A relay coil has 500 ohms resistance, and operates on 125 mA. What value of resistance should be connected in series with it to operate from 110 VDC.
380 ohms.
84
A bipolar junction transistor has?
Two p-n junctions.
85
What is the name of the nonmetallic material that has the ferromagnetic properties of iron?
Ferrite.
86
What is the term for the out of phase power associated with inductors and capacitors?
Reactive power.
87
Which of the following is not a common wave found on an oscilloscope?
Periodic octal wave.
88
An analog multimeter (AMM) checks for:
Voltage, current, and resistance.
89
A patented form of cowling fastener in which the actual locking is done by turning a steel cross-pin in a spring steel receptacle.
Airloc fastener.
90
This drawing contains all subassemblies shown in their relative position in an exploded view. They do not show all the individual parts in each item in the drawing.
Installation drawing.
91
Electronic components such as diodes and transistors that can rectify or amplify.
Active components.
92
A semiconductor element used for transistors and diodes.
Germanium.
93
Walking across a carpet can create voltage in the range of _______.
1,500-35,000 volts.
94
All HIGHs in will output a LOW, any LOW in will cause a HIGH output.
NAND Gate.
95
The dividing line for a coupling capacitor at a specific frequency can be taken as?
Xc one-tenth or less the series resistance.
96
The only type of coupling the can amplify DC voltages as well as AC signals.
Direct coupling.
97
What is the description of a square wave?
A wave that abruptly changes back and forth between two voltage levels and stays at these levels for equal amounts of time.
98
Current loss due to heating of the core that alters the overall distribution of current flowing through the conductor is __________.
Eddy current
99
What is the range of voltage ratings available in Zener diodes?
2.4 volts to 200 volts and above.
100
Which of the following is best suited for controlling power in an AC circuits?
Triac.
101
An adaptable amplifier with inverting and non-inverting inputs featuring high input and low output impedance, and very high gain.
Operational amplifier.
102
The ability of a material to concentrate magnetic flux.
Relative permeability.
103
A semiconductor device, commonly used in amplifier circuits or as a switch of electronic signals.
Transistor.
104
In a parallel circuit, the individual branch currents are:
Inversely proportional to the branch resistance values.
105
In mathematics, the two sides of a triangle that have a common angle.
Adjacent.
106
The region of a bipolar transistor that receives the flow of current carriers.
Collector
107
Where grain layers are lifted away, is an advanced for of intergranular corrasion.
Exfoliation corrosion.
108
Given a power supply with a no load voltage of 12 volts and a full load voltage of 10 volts, what is the percentage of voltage regulation?
20%
109
The numerical code published to standardize the manual subjects into a common place.
Airline Transport Association.
110
The unit of real power is the?
Watt
111
Section 3 of the MSDS contains what information?
Physical and chemical properties.
112
An error inherent in magnetic compasses, caused by the force of acceleration acting on the dip compensating weight when the aircraft accelerates or decelerates on an easterly or westerly heading.
Acceleration error.
113
Cells are connected in series to:
Increase the voltage output.
114
The vast majority of screws are what number?
2
115
A human's perception and cognitive reaction to a condition or event.
Awareness.
116
A semiconductor condition of operation in which a high-resistance state exists.
Reverse bias.
117
The forming of a tight bond, usually in reference to surface coatings and adhesives.
Adhesion.
118
This drawing depicts the relationship between two or more parts. These drawings reference individual parts by their part number and specify the type and number of fasteners needed to join them.
Assembly drawing.
119
A piece of test equipment used to identify FOD.
Borescope.
120
Electrical accidents are caused by a combination of three factors, which is not one of those factors?
Unsafe amount of current.
121
Which of the following provide increased lift, drag, and wing area for takeoff and landing?
Flaps.
122
This type of coupling is used to amplify much higher frequencies. The gain resistor is replaced with an inductor.
LC coupling.
123
The output frequency is determined by the resonant frequency of the piezoelectric crystal in the oscillator:
Crystal-controlled oscillator.
124
FAR ____ certification is used for aircraft less than 12,500 pounds.
23.
125
The allowable level for a hazardous substance in the breathing air in which employees are exposed.
Permissible exposure levels.
126
The current at resonance in a series LC circuit is?
Maximum.
127
A pure semiconductor is often referred to as?
Intrinsic semiconductor.
128
Attached to the vertical stabilizer this device allows the pilot to control the aircraft around the vertical axis.
Rudder.
129
Any HIGH in will output a LOW, All LOW's will cause a HIGH.
NOR Gate.
130
The impedance of a series LC circuit at resonance is?
Minimum.
131
A fine-toothed wood cutting saw that has a stiff lip along its upper edge.
Back saw.
132
What is the typical size range of safety wire?
.020 to .041 inch.
133
What FAA regulation has requirements for maintenance, preventive maintenance, rebuilding, and alterations?
14 CFR Part 43.
134
A nut riveted or welded to a structure in such away that a screw or bolt can be screwed into it.
Anchor nut.
135
This type of lead-acid battery is more powerful and require less maintenance than the old style. There is also no need to add water for this type. What type is being considered?
Sealed cell.
136
How would you calculate the total capacitance of three capacitors in parallel?
CT= C1 + C2 + C3.
137
A spring-loaded clip with long, narrow jaws and meshing teeth. It is used on the end of an electrical wire to make temporary connections in an electrical circuit.
Alligator clip.
138
Bohr's atomic model consists of what three components?
Protons, neutrons, and electrons.
139
Which of the following is not a configuration for filters?
I.
140
Which of the following is not a characteristic of digital numerical representation:
Infinitely divisible.
141
These injuries are caused by the heat produced by the flow of electricity in the body.
Burn.
142
(1110) is binary for which number?
14.
143
A chemical substance that contains hydrogen, has a characteristically sour taste, and is prone to react with a base or an alkali to form a salt and to accept electrons from the alkali.
Acid.
144
An electronic component whose current is proportional to the applied voltage?
Linear component.
145
A Maintenance instruction that, if not complied with, could result in an accident or total loss of the aircraft.
Airworthiness directives.
146
(1001) is binary for which number?
9.
147
Zinc chromate primer, enamels, chlorinated rubber compounds are organic coatings commonly used to protect ____.
Metals.
148
A substance that cleans commercial and industrial parts that are often flammable and toxic.
Degreasers/strippers.
149
A magnet that requires an electric current flowing in the turns of a coil to create a magnetic field.
Electromagnetic.
150
What numerical value does violet have on a resistor?
7.
151
Thyristors are used extensively in?
High-power switching applications.
152
