NCTI Installer Tech Multiple Choice Part 1 correctly answered rated A+ 2023
20 milliamperes is the same as _________ amperes.
A 2
B 0.2
C 0.02
D 0.002 - correct answer C
The orbital shell that has a maximum capacity of 18 valence electrons is the ________ shell.
A First
B Second
C Third
...
The orbital shell that has a maximum capacity of 18 valence electrons is the ________ shell.
A First
B Second
C Third
D Fourth - correct answer C
A semiconductor material has ___ valence electron(s)
A1
B2
C3
D 4 - correct answer D
The major factor in determining whether a particular element is a conductor, semiconductor, or insulator
is
A The number of electrons in the valence shell
B The number of neutrons in the nucleus
C The number of positrons in the nucleus
D The number of electron shells filled - correct answer A
,Elements that are called conductors have
A No valence electrons
B Very few valence electrons
C Half of the maximum capacity of valence electrons
D Completely full valence electrons - correct answer B
The term voltage usually refers to
A Indicates how many coulombs pass a given point during the 1 second
B The measurement of electrical resistance
C The measurement of electromotive force
D The measurement of the difference in potential between two charges - correct answer D
The ampere
A Indicates how many coulombs pass a given point during the 1 second
B The measurement of electrical resistance
C The measurement of electromotive force
D The measurement of the difference in potential between two charges - correct answer A
Electrical current is actually produced by
A The transfer of energy from positrons to valence electrons as a result of applied charges
B The transfer of energy from valence electron to valence electron as a result of applied charges
C The transfer of energy from positrons to positrons as a result of withdrawn charges
D The transfer of energy from valence electron to valence electron as a result of withdrawn charges -
correct answer B
What prevents the electrons that orbit an atom's nucleus at high speeds from breaking away from the
nucleus due to centrifugal force?
A The repulsion between the positive nucleus and the negative electrons
B The repulsion between the neutral nucleus and the negative electrons
, C The attraction between the neutral nucleus and the negative electrons
D The attraction between the positive nucleus and the negative electrons - correct answer D
5 kilovolts is the same as
A 50 kV
B 5 kV
C 0.5 mV
D 5 MV - correct answer B
To create an electromagnet
A Wrap a coil of uninsulated wire around an iron bar and pass an electric current through the wire
B Wrap a coil of insulated wire around a copper bar and pass an electric current through the wire
C Wrap a coil of uninsulated wire around an iron bar and pass an electric current through the wire
D Wrap a coil of insulated wire around an iron bar and pass an electric current through the wire - correct
answer D
Magnetism
A Was discovered when the Greeks noticed that magnetite always aligned itself in a west and east
direction
B Was discovered when the Greeks noticed that magnetite always aligned itself in a north and south
direction
C Was discovered when the Romans noticed that magnetite always aligned itself in a north and south
direction
D Was discovered when the Romans noticed that magnetite always aligned itself in a west and east
direction - correct answer B
In a magnetic material
A Where all of the magnetic domains are pointing in the same direction, the magnetic field is weaker
B Where only some of the magnetic domains are pointing in the same direction, the magnetic field is
stronger
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller maxiscore. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
