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Engineering ETA Exam Questions and Answers
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Engineering ETA Exam Questions andAnswers.
Electrostatic Discharge Answer- 1. What does the acronym ESD stand for?
100mA, 200mA -Explanation: Though currents between 100mA and 200mA can kill a
human being, if resuscitation is available, chances for survival are 80- 90%. Answer- 2.
Current amounts between ______ and _____ can be lethal.
Shock Answer- 3. What is the number one concern in regards to electrical safety?
Protons, neutrons and electrons Answer- 4. Bohr's Atomic Model consists of what three
components?
shells Answer- 5. Electrons are arranged in _____ around a nucleus.
Conductors, semi-conductors and insulators Answer- 6. What are three types of
materials used in electronics?
A, B, C, D, K. Answer- 7. In the United States there are five common classifications of
fires, which are:
directly proportional, inversely proportional Answer- 8. 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.
lines of flux. Answer- 9. The magnetic field that surrounds a magnet can best be
described as invisible lines of force, and are commonly referred to as:
voltage, current and resistance. Answer- 10. An analog multimeter (AMM) checks for:
dual-trace Answer- 11. An oscilloscope with two vertical inputs, is commonly referred to
as a _______ oscilloscope.
voltage drop. Answer- 12. Voltage or potential difference is the measure of potential
energy between two points in a circuit and is commonly referred to as:
The resistance of a component at a given frequency Answer- 13. What is impedance?
, 210 Ohms Answer- 14. A resistor has three color bands of red, brown and brown. What
is the ohmic value of this resistor?
Inductor Answer- 15. What components value is measured in millihenries?
power, resistance, current and voltage. Answer- 16. Ohm's Law characterizes the
relationship between:
Voltage times current Answer- 17. Ohm's Law states that resistance is calculated by
voltage divided by current. Using Ohms law, how do you determine power?
3.3 * 10^3. Answer- 18. Using a scientific calculator, a 3300 ohm resistor can be
entered with scientific notation as:
the sum of all the resistor values within the circuit. Answer- 19. Total resistance in a
series circuit equals:
333.33uA Answer- 20. If a series circuit has three resistors valued at 10k Ohms, 15k
Ohms and 20k Ohms, with a voltage source of 15V, the total current will be_____.
inversely proportional to the circuits resistance. Answer- 21. Current in a parallel circuit
is:
669.29 Ohms Answer- 22. With three 2.5k resistors and one 3.4k resistor in parallel, the
total resistance is:
20 Ohms Answer- 23. With one series 8 Ohm resistor connected to two in-parallel
resistors, 20 and 30 ohms respectively, what is the total resistance (Rt)?
50 Answer- 24. Given a battery rated at 350 ampere-hours how many hours will the
battery be able to provide 7 amperes?
frequency, period, wavelength and amplitude.
Ex:Amplitude is the max displacement of the wave's oscillation; voltage level
· Period is when one cycle is measured in a unit of time, most often seconds or fractions
of a second. When expressed as a measurement, this is often called the period of a
wave. The period of a wave in degrees is always 360, but the amount of time one period
occupies depends on the rate voltage oscillates back and forth; negative and positive
alternations
· Wavelength is the distance a waveform covers during a set period.
· Frequency is the number of cycles of ac per second. AC frequency is measured in
hertz. Answer- 25.
The basic properties associated with alternating voltage and current are:
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