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CETa Practice Test questions with verified answers
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CETa Practice Test questions with verified answers
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CETa Practice Test1.
What does the acronym ESD stand for?
A.
Electrostatic Discharge
B.
Electrostatic Device
C.
Electromagnetic Sensitivity Diac
D.
Electrostatic Damage - correct answer ✔✔A.
Electrostatic Discharge
Current amounts between ______ and _____ can be lethal.
A.
100mA, 200mA
B.
10mA, 33.3mA
C.
33.3, 75.6mA
D.
4mA, 10mA - correct answer ✔✔A.
100mA, 200mA
What is the number one concern in regards to electrical safety?
,A.
Proper grounding
B.
ESD
C.
Shock
D.
Faulty equipment - correct answer ✔✔C.
Shock
Bohr's Atomic Model consists of what three components?
A.
Neutrons, ion, neutrinos
B.
Protons, neutrons and cations
C.
Tachyons gravitons and electrons
D.
Protons, neutrons and electrons - correct answer ✔✔D.
Protons, neutrons and electrons
Electrons are arranged in _____ around a nucleus.
A.
orthogonal lattices
B.
shells
C.
loops
D.
,spheres - correct answer ✔✔B.
shells
What are three types of materials used in electronics?
A.
Conductors, semi-conductors and insulators
B.
Semi-conductors, insulators and semi-insulators
C.
Insulators, conductors and interions
D.
Conductors, insulators and regulators - correct answer ✔✔A.
Conductors, semi-conductors and insulators
In the United States there are five common classifications of fires, which are:
A.
A, C, D, K, M.
B.
A, B ,C, D, E.
C.
A, B, C, E, M.
D.
A, B, C, D, K. - correct answer ✔✔D.
A, B, C, D, K.
Coulomb's Law describes the forces of attraction or repulsion between electrical charges, which are
______________ to the product of the charges ______________ to the distance between them.
A.
directly proportional, inversely proportional
, B.
inversely proportional, directly proportional
C.
indirectly proportional, directly proportional
D.
inversely proportional, indirectly proportional - correct answer ✔✔A.
directly proportional, inversely proportional
The magnetic field that surrounds a magnet can best be described as invisible lines of force, and are
commonly referred to as:
A.
lines of flux.
B.
lines of density.
C.
lines of attraction.
D.
lines of flux proportionality. - correct answer ✔✔A.
lines of flux.
An analog multimeter (AMM) checks for:
A.
voltage, resistance and inductance.
B.
voltage, resistance and capacitance.
C.
current, resistance and capacitance.
D.
voltage, current and resistance. - correct answer ✔✔D.
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