This is the Section 5 Module 9 of the compiled Electronics Coaching Materials taken from different sources including but not limited to Electronics books, past Board Exams Questions, Journals and other Electronics References. This particular Coaching Notes in Electronics Engineering has random Questions and Answers in random topics. Make sure to familiarize each questions to increase the chance of passing the ECE Board Exam.
Electronics Engineering Coaching: Section 5 Module 9
Kismet – robot which resembles human expression.
Pleo – robot dinosaur
Anthropomorphic Robot – can move much like person’s arm.
Strobotac – measure rapid speed.
Domain theory – electron spin theory
DC motor resistance – 0.05 to 0.5 ohms
Electrolytic capacitor – 500 v
High Frequency resistance welding – 100000 Hz to 5000000 Hz.
Electric motor – widely used actuator and most common actuator
Prime Mover – driving force of generators.
Elementary Generator – type of generator consists of a single coil rotated in the magnetic field.
Compensating windings and interpoles – counter act the effects of armature reaction.
Salient-Pole rotor – low speed alternators
Slip – difference in speed between the rotors which is less than the speed of the rotating field.
Automated inspection – the used of anyone of several techniques to determined the presence or absence of features.
Automation – automatically controlled operation.
Axis – traveled path in space.
Bangbang robot – motion are controlled by driving each axis or degree of freedom against a mechanical limit stop.
Base – platform or structure which robot arm is attached.
Cycle – automatic work for robot.
Fixed-stop robot – a robot with stop point control but no trajectory control
Floor mounted Robot – base is attached to the floor or bench.
Gripper – grasping hand of robot.
Gantry robot – minimum of 3gedrees of freedom and normally not exceeding 6
Payload – maximum weight that robot can handle.
Yaw – angular displacement.
0.1% – stray capacitance of a DC motor.
Barrater – bolometer which increase resistance which dissipated power increase.
Thermistor – bolometer which decrease resistance when dissipated power increase.
Air Muscle – simple yet powerful that provides pull force and resembles human muscle.
Load Action – current flow when no load condition.
Advantage of aluminum on long distance transmission lines – light and reduces chroma.
Perception – 0 -1 mA 60Hz AC, 1 – 4 mA DC
Surprise – 1 -4 mA 60Hz AC, 4 – 15 mA DC
Reflex Action – 4 -21 mA 60Hz AC, 15 – 80 mA DC
Muscular Inhibition – 21 -40 mA 60Hz AC, 80 – 160 mA DC
Respiratory Failure – 40 -100 mA 60Hz AC, 160 -300mA DC
Fatal – 100 mA and above 60Hz AC, over 300 mA
IN368 – orange blue and gray color bands
300 ohms – resistance of human body
100 ohms – resistance of human from temple to temple with broken skin
Induction bridge – measures unknown inductance
Capacitance bridge – measure unknown capacitance
Wheatstone bridge – measures unknown resistance
CO2 – extinguisher of electrical equipment with fire
GaAs – compound
Pentode – three grids vacuum tube
Welding – combination of two metals or thermoplastic
Elbow – connection between forearm and upper arm
SCARA robots – Used in Assembly
Bobbin – aluminum case of the woundwire
Oscilloscope – can show time domain
Phase angle of 45 degrees – when Xc/R equals 1
Lead Acid Cell – anode is lead peroxide, cathode is sponge lead
Silver-Zinc – anode is silver oxide, cathode is Zinc
NiCad cell – anode is hydroxide, cathode is cadmium hydroxide
Silver-Cadmium – anode is silver-oxide, cathode is cadmium hydroxide
Generator – produces electricity with used of magnetic
Battery – produce electricity with use of chemical
Selenium – used commonly in solar cell
Flash memory – fastest memory
Cable – are braid to prevent interference
Oxidation – is the process of destroying the structures of metal in the form of rust.
EPROM – must be removed to erase the memory
ROM – easy to read but hard to store
RAM – easy to read and store
Step-down Transformer – when the primary winding is greater than the secondary winding
Pure Argon – TIG
Carl Zener – Zener Diode
Leo Esaki – Tunnel Diode
Heptode – 1 tube, 5 grids
Electroactive Polymer – class of plastic that change shape when stimulated by electric current
Forearm – elbow to wrist
Enamel Insulated Wire – magnet wire
Horse shoe magnet – measuring circuit
Ring Magnet – computer memory
Translation – movement – parallel
2/3 heat – positive electrode
Zero Temperature Coefficient – term describe a material whose resistant remain constant with change in temperature
Domain Theory – electron spin in one direction than in the other
Voltage Divider – bleeder current is usually 10% rule of thumb
Braid – weaving of metal of cloth material
Corona – the discharge of electricity from a conductor with a high potential
Flux – material that removes oxides from surfaces to be joined by welding
Thermal Inertia – the capacity of a soldering iron to maintain satisfactory soldering temperature while giving up heat to the material being soldered
Self Healing – Oil will tend to reseal the hole caused by arcing
Electric Shock – shaking sensation from contact with electricity
Polarization – effect of hydrogen surrounding the anode of a cell which increases the interval resistance of the cell
Hydrometer – provides the mean to check the specific gravity of electrolyte
20 years – shelf life of lithium organic cell of lithium inorganic cell
Floating Charge – sometimes referred to as trickle charge
Floating Charge – accomplished by low current
Fast charge – used when a battery must be recharge in the shortest possible time
High efficiency – is achieved when the resistance of the load is high with respect to the resistance of the source
0.1 A – a fatal shock can occur
30 V – sufficient voltage which causing current to be fatal
Coulomb’s Law – law of electric charges or the law of electrostatic attraction.
Shielding – metallic covering used to prevent magnetic or electromagnetic field from affecting an object
Band Reject – block narrow band allow above of below
Colpitts – oscillator using tapped capacitor
Hartley – oscillator using tapped inductor
Armstrong – oscillator using tickler coil for feedback
Frequency Stability – is measure of the degree to which a constant frequency output is approached
Amplitude stability – of transistor oscillator indicates the amount by which actual amplitude varies from the desired output
Split capacitors – features of colpitts oscillator
Leading Edge – left side of the pulse
Trailing edge – right side of the pulse
Windage Loss – no load loss
1/64 – lamination thickness of the core
An increase in frequency of magnetron – achievable power output is decrease
Klystron – high power
Vidicon – high sensitivity
Frequency Synthesizer – uses divider
Tone control – graphic equalizer
JFET biased beyond pinch off in power amplifiers
Zener Voltage – Avalanche voltage
TTL – least propagation delay
Diode detector – found in RF radio receivers
JFET in different triode – JFET needs more voltage
Comparator – checks for input level difference
In RS flip flop, R = 0, S = 0 output is the same
In RS flip flop, R = 1, S = 1 output is the absurd
Zero moment point – used by Honda, used in balancing
In EXX00, the first two or first three number is the tensile strength expressed in thousand of pounds per squared inch
E7018 – Hydrogen….
E6010 – supply came from DCSP
EXX1X – in all direction
EXX2X – horizontal and flat
EXX3X – Flat
Carbon arc welding – oldest and first in arc welding
MIG – GMAW, inactive component, Metal inert Gas
MAG – metal active Gas
Gantry Robot – rectilinear
5 Intervals – Squeeze Interval
Heat sub interval – when there is current produced in weld interval
Cool sub interval – when there is no current produced in weld interval
IMPATT – diode found in radio transmitter
Amplidyne – DC motor amplifier, gain is 10,000
Soldering – below 450 degrees Celsius
Magnetic Audio – parallel
Advantage of Submerged Arc Welding – soft beads, deep penetration, high current
Lower left of ohmmeter – function
Lower center of ohmmeter – range
MIG – ac cannot be used
Saw – either AC or DC
Salient pole – slower speed alternator
Contact – produces DC to alternator
Initial charge – low long charge
Forge welding – oldest welding
Solid State Welding – below at melting temperature
Resistance spot welding – one spot
Resistance Projection welding – metal
Kuka spot – 6 degrees of freedom
1 mil – thickness of magnetic tape
Reversed bias PN junction – independent from frequency
Manganin – shunts are usually made of
Fidelity – faithful reproduction of signal in an amplifier