CETA PRACTICE TEST
80+ (Fully Updated 2025-2026) Exam
Questions + Verified & Rationalized
Answers | A+ Graded
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✓ This Exam contains: CETa Practice Test
✓ 100% Accurate Questions and Answers
✓ 100% Guarantee Pass - Verified by Experts
✓ Each Question Includes The Correct Answer
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,Question 1
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
Rationale:
The term "Electrostatic Discharge" accurately represents the common phenomenon of a sudden flow of electricity between two objects
at different electrical potentials, caused by a buildup of static electricity. This definition aligns with the term "ESD" being widely used in
electronics and industries to describe the protection of sensitive components from damage due to static electricity.
Question 2
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
Rationale:
The correct answer is based on the fact that electrical currents above 100mA can cause cardiac arrest by disrupting the heart's
electrical impulses, while currents below 10mA are generally not considered lethal. This is because the human body's response to
electrical shock changes significantly at the 10mA threshold, with higher currents posing a greater risk of serious harm or death.
Trusted by thousands of students and professionals worldwide Page 2 of 42
,Question 3
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
Rationale:
Electrical shock is the primary concern in electrical safety because it poses a direct threat to human life by causing cardiac arrest,
burns, or even death. This risk is amplified by the fact that electrical shock can occur without any visible injury, making it a silent and
unpredictable hazard that demands proper precautions and safety measures.
Question 4
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
Rationale:
Bohr's Atomic Model primarily focuses on the arrangement of electrons in energy levels around the nucleus, which consists of protons
and neutrons. The inclusion of electrons in the model is crucial as they are the particles responsible for the chemical properties of an
atom and occupy specific energy levels, making option D the correct choice.
Trusted by thousands of students and professionals worldwide Page 3 of 42
, Question 5
Electrons are arranged in _____ around a nucleus.
A.
orthogonal lattices
B.
shells
C.
loops
D.
spheres
Correct Answer
B.
shells
Rationale:
The correct answer is "B. shells" because the term "shell" refers to a region around the nucleus where electrons with similar energy
levels are located, which is a fundamental concept in atomic structure. This arrangement of electrons in shells allows for an efficient
and organized distribution of electrons within the atom, making it easier to understand and predict their behavior.
Question 6
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
Rationale:
This answer is correct because conductors, semi-conductors, and insulators are fundamental categories of materials based on their
ability to conduct or resist electricity, which is crucial in electronics. These categories accurately reflect the distinct properties of
materials used in electronic devices and circuits, making them essential for understanding electronic concepts and design.
Trusted by thousands of students and professionals worldwide Page 4 of 42
80+ (Fully Updated 2025-2026) Exam
Questions + Verified & Rationalized
Answers | A+ Graded
100% Guarantee Pass
✓ This Exam contains: CETa Practice Test
✓ 100% Accurate Questions and Answers
✓ 100% Guarantee Pass - Verified by Experts
✓ Each Question Includes The Correct Answer
✓ Expert-Verified
Trusted by thousands of students and professionals worldwide Page 1 of 42
,Question 1
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
Rationale:
The term "Electrostatic Discharge" accurately represents the common phenomenon of a sudden flow of electricity between two objects
at different electrical potentials, caused by a buildup of static electricity. This definition aligns with the term "ESD" being widely used in
electronics and industries to describe the protection of sensitive components from damage due to static electricity.
Question 2
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
Rationale:
The correct answer is based on the fact that electrical currents above 100mA can cause cardiac arrest by disrupting the heart's
electrical impulses, while currents below 10mA are generally not considered lethal. This is because the human body's response to
electrical shock changes significantly at the 10mA threshold, with higher currents posing a greater risk of serious harm or death.
Trusted by thousands of students and professionals worldwide Page 2 of 42
,Question 3
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
Rationale:
Electrical shock is the primary concern in electrical safety because it poses a direct threat to human life by causing cardiac arrest,
burns, or even death. This risk is amplified by the fact that electrical shock can occur without any visible injury, making it a silent and
unpredictable hazard that demands proper precautions and safety measures.
Question 4
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
Rationale:
Bohr's Atomic Model primarily focuses on the arrangement of electrons in energy levels around the nucleus, which consists of protons
and neutrons. The inclusion of electrons in the model is crucial as they are the particles responsible for the chemical properties of an
atom and occupy specific energy levels, making option D the correct choice.
Trusted by thousands of students and professionals worldwide Page 3 of 42
, Question 5
Electrons are arranged in _____ around a nucleus.
A.
orthogonal lattices
B.
shells
C.
loops
D.
spheres
Correct Answer
B.
shells
Rationale:
The correct answer is "B. shells" because the term "shell" refers to a region around the nucleus where electrons with similar energy
levels are located, which is a fundamental concept in atomic structure. This arrangement of electrons in shells allows for an efficient
and organized distribution of electrons within the atom, making it easier to understand and predict their behavior.
Question 6
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
Rationale:
This answer is correct because conductors, semi-conductors, and insulators are fundamental categories of materials based on their
ability to conduct or resist electricity, which is crucial in electronics. These categories accurately reflect the distinct properties of
materials used in electronic devices and circuits, making them essential for understanding electronic concepts and design.
Trusted by thousands of students and professionals worldwide Page 4 of 42
