Mod 3 - Final Flashcards
Which one of these statements about electrostatic lines of force is FALSE ?
The tighter the lines of force are together, the stronger the field force is.
The lines always leave positive charges and enter negative ones.
Electrical field force lines can cross over one another.
Electrical field force lines can cross over one another.
The create greater charge levels on substances within the Triboelectric Series, the should be?
As close to one another on the Triboelectric table.
It doesn’t matter where they are on the Triboelectric table.
As far away from each other on the Triboelectric table.
As far away from each other on the Triboelectric table.
When 2 items on the the Triboelectric Series are rubbed together, the one HIGHEST UP gains?
No Charge
A negative Charge
A positive Charge
A positive Charge
The ordered list of insulators in relation to their effect on generating static electricity is called the:
The Fourier Transform List
The Triboelectric Series
The conductivity Index
The Triboelectric Series
Electrostatic lines of force are drawn in which of the following manners?
Leaving negative charge, entering positive charge
Entering negative charge, entering positive charge
Entering negative charge, leaving positive charge
Leaving negative charge, entering positive charge
A coulomb is
one second per ampere
one ampere x second
one ampere per second
one ampere x second
Remember: Q = I * T
The LETTER symbol used in circuit diagrams to denote ELECTROMOTIVE FORCE is the letter ?
I
G
V
R
E or U
E or U
Which one of the following generators of electricity can only ever produce a DC Current?
a magnetism and motion generator
a thermocouple
a piezoelectric crystal
a thermocouple
You can produce a voltage in quarts crystal system by ?
By placing a compressive load on it.
Heating the quartz crystal up to 500°C
Placing it in a very strong magnetic field.
By placing a compressive load on it.
Which one of the following generators of electricity can only ever produce a DC Current?
a photoelectric cell
a piezoelectric crystal
a magnetism and motion generator
a photoelectric cell
A pilot’s crystal microphone in a boom headset uses which form of energy to create electricity?
Chemical
Magnetism and conductor motion
Frictional
Optical
Pressure
Thermal
Pressure
You can generated a voltage directly by using the following :
Magnetism, Water, wind, Chemical, Light and Heat.
Friction, heat, light Chemical, Pressure and Magnetism,
Heat, centrifugal force, friction, kinetic force and Wind.
Friction, heat, light Chemical, Pressure and Magnetism,
If a battery has got an appreciable internal resistance, then …..
no load voltage will be greater than on load voltage
on load voltage will be greater than no load voltage
no load voltage will be the same as on load voltage
no load voltage will be greater than on load voltage
Which of the following actions will recharge a secondary cell ?
Connecting the negative terminal of a voltage source to the anode of the cell and the positive terminal of the voltage source to the cathode of the cell
Connecting the negative terminal of a voltage source to the cathode of the cell and the positive terminal of the voltage source to the anode of the cell
Adding more water to the electrolyte
Connecting the negative terminal of a voltage source to the anode of the cell and the positive terminal of the voltage source to the cathode of the cell
In a voltaic cell, what is the (salt) build-up on the cathode called?
Sulphation
Hydration
Polarization
Sulphation
How many NiCad cells are needed to make a 24VDC aircraft battery?
20
1
12
20
NiCad SG = 1.2
Aiding each other
Opposing Each other
Neither aiding or opposing
Opposing Each other
