Quiz
2W151: Fundamentals of Electricity and Circuits - Quiz 10
Perguntas do quiz (33)
1The negatively charged particles in an atom are called:
- AIons
- BProtons
- CNeutrons
- DElectrons
2The positively charged particles in an atom are called:
- AIons
- BProtons
- CNeutrons
- DElectrons
3the neutrally charged particles in an atom are called:
- AIons
- BProtons
- CNeutrons
- DElectrons
4Which of the following choices correctly reflects basic atomic particle placement in an atom?
- AProtons in the nucleus with the neutrons and electrons in orbit
- BNeutrons and electrons in the nucleus with the protons in orbit
- CProtons and neutrons in the nucleus with the electron in orbit
- DProtons and electrons in the nucleus with neutrons in orbit
5An electrically unbalanced atom is called:
- AAn Ion
- BA proton
- CA neutron
- DAn electron
6Magnetism is defined as an invisible force with the ability to do:
- AElectrical work
- BPneumatic work
- CMechanical work
- DForward and revers biases
7Haphazard alignment of the individual molecules causes the effects of their magnetic poles to:
- ACancel out
- BBecome stronger
- CGenerate current
- DCreate a static charge
8Magnetic lines of force never
- ARepel; they attract
- BAttract; they join
- CBend; they cross
- DCross; they bend
9Which of the following substances is an insulator:
- AIron
- BGold
- CGlass
- DSilver
10What is the unit of measurement for movement of electrons through a conductor?
- AVolt
- BAmp
- CWatt
- DOhm
11What does the term current refer to?
- ATotal resistance present in a circuit
- BAmount of electrical pressure in the circuit
- CAmount of power being transmitted through a conductor in 1 second
- DQuantity of electrons flowing past a given point during 1 second
12What is the unit of measurement for resistance to current flow?
- AVolt
- BWatt
- CAmp
- DOhm
13What effect will increasing the current have on an electromagnet?
- AStrengthens the magnetic field
- BRaises the temperature of the coefficient
- CLowers the temperature of the coefficient
- DRaises the resistance offered by the conductor
14Which component of a battery generates the negative charge during operation?
- ACathode
- BAnode
- CDiode
- DElectrolyte
15Which component of a battery generates the positive charge during operation?
- ACathode
- BAnode
- CDiode
- DElectrolyte
16The flow of electrons in a battery is always from the:
- ACathode to the anode
- BAnode to the cathode
- CDiode to the anode
- DAnode to the diode
17If a conductor is passed through a magnetic field so that it will pass through the magnetic lines of force, it will generate:
- AElectrical current
- BElectrical resistance
- CMagnetic resistance
- DThermal coefficient changes
18In a generator, the electrons in the conductor nearest the south pole will be drawn towards the side of the coil that is closest to the
- AMagnetic dipole
- BSource of current
- CNorth pole of the magnetic field
- DSouth pole of the magnetic field
19Static charges tend to remain in the localized area of a contact for long periods in
- AResistors
- BInsulators
- CCapacitors
- DConductors
20The conductivity of some insulating material is increased by the absorption of
- AAir under low-humidity conditions
- BHeat under high-humidity conditions
- CMoisture under high-humidity conditions
- DMoisture under low-humidy conditions
21What electrical component is designed to offer a predetermined amount of opposition to current flow in a circuit?
- AFilter
- BDiode
- CCapacitor
- DResistor
22What is the most common type of resistor used in electronics?
- AMica
- BBakelite
- CWire-wound
- DCarbon-composite
23Wire-wound resistors are normally used in circuits where power requirements exceed:
- A2 watts
- B3 watts
- C4 watts
- D5 watts
24Wire-wound resistors are more accurate than carbon-composition resistors because of their
- ALarge size
- BExtreme cost
- CLarge current carrying capacity
- DAdjustable wire length capability during manufacture
25A two-terminal variable resistor is a
- ARheostat
- BAnanomiter
- CPotentiometer
- DTapped resistor
26A three-temrinal variable resistor is a
- ARheostat
- BFixed resistor
- CPotentiometer
- DTapped resistor
27Insulators are substances with tightly bound orbiting electrons held firmly in place by the nucleus.
- AVerdadeiro
- BFalso
28Select which of the following material that make good conductors:
- APlatinum
- BPlastic
- CGold
- DGlass
- ESilver
- FCopper
29Which substance has electrons bound loosely to the nucleus and easily freed by a suitable force?
- AConductor
- BInsulator
- CElectrical force
- DSemi-conductor
30Semi-Conductors are used in solid-state devices; their resistance and conductivity fall between insulators and conductors.
- AVerdadeiro
- BFalso
31What is the unit of measure of electrical pressure?
- AAmp
- BCurrent
- CVolt
- DOhm
32Chemical batteries generally consist of three parts: an anode, cathode, and electrolyte.
- AVerdadeiro
- BFalso
33When an object gains or loses a large amount of __________________, it develops a "static" charge.
- AElectrons
- BIons
- CProtons
- DNeutrons
Informações
- Descrição
- Quiz 10
- Autor
- Joseph Whilden J
- Idioma
- English
- Visualizações
- 53
- Etiquetas
- Avaliação
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