ASVAB ELECTRONICS EXAM QUESTIONS

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ASVAB ELECTRONICS EXAM QUESTIONS

Actual Qs and Ans - Expert-Verified Explanation -Guaranteed passing score -27 Questions and Answers

-Format: Multiple-choice / Flashcard

Question 1: A watt is the power that gives rise to the production of energy at a rate of (A) 1 joule per minute (B) 1 volt per second (C) 1 amp per second (D) 1 joules per second

Answer:

D

Question 2: Electricity is defined as the flow of ___ along a ___

(A) electrons, resistor (B) electrons, conductor (C) positrons, conductor (D) neutrons, pathway

Answer:

B Question 3: What is the total resistance in this circuit if all resistors are 300 ohms?(A) 900 watts (B) 1,200 ohms (C) 900 ohms (D) 600 ohms

Answer:

C

Question 4: A capacitor of 100 microfarads has a capacity of

(A) 100 picofarads (B) 10 picofarads (C) 100,000,000 picofarads (D) 10,000 picofarads

Answer:

C

Question 5: A 12-volt battery contains how many cells

(A) 1 (B) 6 (C) 8 (D) 9

Answer:

C

Question 6: A signal's frequency is inversely proportional to its

(A) Amplitude (B) Phase (C) Period (D) Oscillation

Answer:

C

Question 7: The property of a circuit that opposes the flow of electrons is

(A) Reactance (B) Capacitance (C) Resistance (D) Inductance

Answer:

C

Question 8: An ampere (or "amp" for short) is defined as

(A) An electrical flow of 100 volts per second (B) An electrical flow of one coulomb per second (C) The strength of a magnetic field through a capacitor (D) A measurement of the ion flow from a power source

Answer:

B

Question 9: A junction diode is used for

(A) Rectifying power-line frequencies and lower currents (B) Rectifying power-line frequencies and higher currents (C) Rectifying higher frequencies at lower currents (D) Rectifying higher frequencies at higher currents

Answer:

B Question 10: The parallel circuit with resistors of 10 ohms, 10 ohms, and 5 ohms has a total resistance of (A) 10 ohms (B) 5 ohms (C) 25 ohms (D) 2.5 ohms

Answer:

D

Question 11: The best reason to use a filter in a power supply is to

(A) Convert alternating current to direct current (B) Change direct current to alternating current (C) Even out voltage variations (D) Smooth out power surges

Answer:

C

Question 12: Capacitors connected in series obtain a resulting value

(A) Greater than the sum of the individual capacitor values (B) Equal to the sum of the individual capacitor values (C) Less than that of the smallest capacitance (D) Produces neutral change in capacitance values

Answer:

C Question 13: A 120-volt circuit has resistance 6 ohms. How much current is present in the circuit?(A) 0.2 amperes (B) 20 amperes (C) 40 amperes (D) 720 amperes

Answer:

B

Question 14: Conventional current flow is from

(A) + to + (B) - to + (C) + to - (D) - to -

Answer:

C Question 15: Resistance in a circuit is changed from 50 ohms to 25 ohms. If the voltage in the circuit remains the same, what will happen to the current?(A) The current will stay the same (B) The current will double (C) The current will decrease by half (D) Not enough information to tell

Answer:

B

Question 16: The Greek letter phi (?) is used to

(A) Indicate ohms (B) Indicate volts (C) Indicate angles or phases (D) Indicate dielectric flux

Answer:

C

Question 17: An oscillator is

(A) A device that measures the waves of varying electrical signals (B) An electronic circuit that produces a regularly varying electrical signal from a direct current (C) A device that performs mathematical operations using an analog signal (D) A device that keeps output voltage from oscillating beyond a desired level

Answer:

B

Question 18: The instrument used to measure electrical resistance is called

(A) An ohmmeter (B) An ammeter (C) A voltmeter (D) A wattmeter