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WorksheetsM3B163MTPLTP
Total questions: 91
Worksheet time: 13hrs 57mins
In semiconductor, the material used for the amount of electrons that must be assured
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9
10
7
high peak voltage is produced when supplying dc to an inductive load then removed. What do you call the voltage?
Electrical charge of electrons protons and ions is referred to as what?
Electrical charge of electrons protons and ions is referred to as what?
the unit of electric charge
Voltage is the difference in energy between electrical charges and this difference is called what?
Where do ions flow?
Through Vacuum, gas and fluid
Through light waves and fluid
Through sound waves and heat waves
The smallest charge existing in an electron & proton.
ELECTRONS
ELEMENTARY CHARGE
THERMIONIC EMISSION
VOLTAGE GENERATED
This is characterized by a flow of charges in a certain direction.
INDUCTION OF MOTION
WAVELENGTH
ELECTRIC CURRENT
PIEZOELECTRIC EFFECT
Principle of all generators.
INDUCTION OF MOTION
COIL ROTATION
STATIC ELECTRICITY
Why do we need to connect batteries in parallel?
TO WITHSTAND HEAT
TO FLOW EFFICIENTLY
TO INCREASE CAPACITY
Thermocouple consists of?
2 DIFFERENT SEMI CONDUCTOR
2 DIFFERENT METAL ALLOYS
THERMOSTATIC ELECTRODES
Formula for power?
VOLTAGE * CURRENT
CURRENT * AREA
VOLTAGE * AMPERES
It is a distance that electrical current travels in the cycle time.
WAVELENGTH
CURRENT FLOW
METERING
Generators & motors are what type of machine?
ROTATION ELECTRICAL MACHINE
ELECTRICITY PRODUCING MACHINE
SELF POWERED ELECTRICITY MACHINE
It is a process of chemical effect in current in electrolysis that can be used for what?
GALVANIZING
DISTILLATION
IONIZATION
In charging batteries, where do electrical charged atoms (ions) flow?
FLUID & SOLID
GAS & LIQUID OR GAS & FLUID
LIQUID & SOLID
It is a conducting liquid.
ELECTRODES
LIQUID
ELECTROLYTE
It is a constant flow of charge carriers in one direction.
DC
AC
BOTH AC AND DC
It is generated by a separation of charges.
VOLTAGE
AMPERE
CURRENT
Electrons move in a few meters per second.
VOLTS PER SECOND
AMPERES PER SECOND
VELOCITY
It is invisible and only its effect is perceptible.
ELECTRICITY
AIR
VIRUS
It has better mechanical resistance, has a longer life and is less sensitive to short circuits.
LITHIUM ION
NICKEL CADIUM BATTERY
LITHIUM
Unlike/dissimilar terminals of power sources are connected will create a?.
Series connection
Methods to produce conductivity of semiconductors.
By doping, heat, and light
It is a separation of electrons from a metal bonding through heating.
It is a device/instrument to measure voltage, and how to use it?
barometer
hydrometer
voltmeter
What will happen if 2 different metals are immersed into an electrically conductive/conducting liquid?
The metals will generate voltage
It is a voltage generation in which a crystal is deformed by using pressure.
It consists of electrolyte and electrodes made of 2 different conductive materials.
Galvanic cell
It is a generation of high voltages by friction but no current will flow.
Type of battery used in aircraft.
If 2 power sources are connected in parallel, what will happen to the voltage, current and resistance?
The voltage will remain the same, the current will sum all individual current, and the resistance will lower than the lowest individual resistance
The current along the series circuit is constant, therefore?
The current carrying capacity must be the same
It is an energy converter that converts electrical charge.
Photocell
EGT (Exhaust Gas Temperature) measurement is using the principle voltage generation. What do you call this principle?
Thermionic Electron Emission or Electron Thermionic Emission
It converts mechanical energy into electrical energy.
Flow of a charged carrier that changes its direction magnitude repeatedly in a period of time.
What happens to the temperature of metal when heated?
Peak value of a wave in an AC Voltage.
Type of signal/output produced by the generator.
AC
What instrument to measure current and how to use it?
Use an ammeter cut/disconnect the line/wire and connect the probes of the ammeter in series (on both ends cutted wire) considering the polarity of the ammeter.
It is a particle that surrounds the center of an atom.
It is a junction between wire/s, power sources can reduce voltage available for the load as the current has to transfer from 1 device to another.
RESISTANCE
CONTACT RESISTANCE
CONTACT
Lowest voltage that is hazardous to humans?
120V DC/ 50V AC
130V DC/ 50V AC
120V DC/ 60V AC
Electrical machines, like motor & generator, operate on?
ELECTRICITY
SOLAR
MAGNETISM
It is a type of signal in which the current varies in the polarity and quantity in the circuit over a period of time.
DC
AC
BOTH AC AND DC
It is a process of decomposition when passing an electric current through a lithium.
It is the opposition of the flow of electrons.
It is the pure substance made up of at least 2 different elements which have been joined together by a chemical reaction.
This material has a molecular structure with high mobility on the valence shell.
Conductor
Non-conductor
It is the intensity of current into the body in a given period of time.
Charge
Type of battery that the electrochemical has a constant current and a variable voltage.
Primary Cell
Secondary Cell
German symbol of voltage
What type of current is allowable to flow in a liquid?
Ion Current
It is the ability of a medium to conduct electric fields.
Armature is also called what?
Power source for the armature is provided by what?
Commutator
Process of voltage generation that involves the movement of conductor and the influence of the magnetic field.
Induction
It is made of several hard copper segments that are separated from each other.
In brushless motors, a motor that has a high RPM but low torque is controlled by the external electronic.
Inrunner
Outrunner
Depends on the type of motor
international symbol of voltage
A brushless motor that is low RPM but high torque.
An Outrunner
Voltage generation method used to measure EGT of an aircraft
Heat
Piezoelectric
Electromagnetic
Optical
In DC machine, it is used when the starting port of the shunt motor is too low and where the speed drop of the series wound motor is high.
Compound Control
Shunt-Series DC Machine
What part of the circuit is with the Thermocouple?
Hot Junction
What is RMS?
Realistic Machine Skills
Root Mean Square
It is identified as the reciprocal of resistance.
If current in a voltage step-up transformer with a Ratio of 1 is to 4, what is the ratio in a current step down?
4:1
1:4
Formula for RMS Power
P = I^2*R
Generators are referred to as ______ at the rated voltage?
Both generator and ampere
Generator
Ampere
How to rate the generators?
Resistance rated voltage
Ampere rated voltage
It is electrically charged atoms
Frequency of an alternator dependent upon what?
RPM
Turns ratio between primary coil and secondary coil of transformer design to triple its input voltage.
PRIMARY COIL WILL HAVE 1/5 AS MANY TURNS AS A SECONDARY COIL
PRIMARY COIL WILL HAVE 1/2 AS MANY TURNS AS A SECONDARY COIL
PRIMARY COIL WILL HAVE 1/4 AS MANY TURNS AS A SECONDARY COIL
PRIMARY COIL WILL HAVE 1/3 AS MANY TURNS AS A SECONDARY COIL
Static electricity is produced by what?
The relationship between the generators and frequency of the AC signal?
The frequency of the AC signal is DIRECTLY PROPORTIONAL to the number of generators
The frequency of the AC signal is INVERSELY PROPORTIONAL to the number of generators
Why do we need to connect batteries in series?
To increase the voltage
Voltage can be generated if the circuit is in series.
TRUE
FALSE
Voltage can be generated with the presence of EMF.
TRUE
FALSE
The amount of voltage that can be generated depends on separation of charges.
TRUE
FALSE
Parallel connection has a constant current and a variable voltage
TRUE
FALSE
Symbol for charge
· Rated voltage of a lead battery cell
It refers to the flow of current from the positive pole to the negative pole
CONVENTIONAL CURRENT FLOW
ELECTRON FLOW
· It is a small series-wound motor which can be either operated by a DC or by a single phase current at a normal power frequency
It is a combination of DC generators and DC motors
Starter Generators
Electric Motor
Universal Motor
Is used to measure the frequency or cycle per second of the voltage
Various orbits that the electron orbits?
Valence Electron
Shell
Atom
Parallel connection has a constant voltage and the current value is the sum of all individual current.
TRUE
FALSE
· It provides visualizationof rapidly varying processes in electrical engineering, electronics and other sciences
