Electronics Engineering Coaching Materials: Section 5 Module 9

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

Weld Interval

Hold Interval

Release Interval

Standby 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

Complete List of Electronics Engineering Coaching Materials