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Electronics Information Test 2
26. The pressure of current is called? 34. To cause a current of 10 amps to flow through 20 ohms
(A) voltage resistance, the voltage needs to be?
(B) ohms (A) 10
(C) amperes (B) 20
(D) none of the above (C) 2
(D) 200
27. AC refers to what?
(A) ampere current 35. Which is NOT an insulator of electricity?
(B) ampere component (A) plastic
(C) alternating current (B) water
(D) alternating component (C) paper
(D) glass
28. DC refers to what?
(A) diode charge 36. Microwave ovens operate by
(B) direct current (A) thermal expansion
(C) direct charge (B) convection heating
(D) diode current (C) dielectric heating
(D) trielectric heating
29. The process used in electroplating is known as
(A) electrochemistry 37. Which of the following is a diode that is used to
(B) electrocoating regulate voltage?
(C) electrolysis (A) zener diode
(D) electrodeposition (B) photodiode
(C) capacitor
30. What does this schematic symbol represent? (D) light emitting diode
38. What does this schematic symbol represent?
(A) a bell
(B) a motor
(C) a lamp
(D) a buzzer
(A) a cell
31. What does RMS mean? (B) an antenna
(A) resistance motor system (C) a wire
(B) real matrix standard (D) a ground
(C) range motion symbol
(D) root mean square 39. The ground wire is always what color in 120-volt
wiring in the United States?
32. What does this schematic symbol represents? (A) white
(B) black
(C) green
(D) orange
(A) a fuse 40. A 120-volt current is protected by a 30-amp circuit
(B) a battery breaker. What is the largest watt appliance that can be
(C) a transformer used safely?
(D) a cell (A) 36
(B) 3,600
33. What is the speed of radio radiated into free space? (C) 360
(A) 300,000,000 meters per second (D) 4
(B) 300,000,000 meters per minute
(C) 343 meters per second 41. Sources of electromagnetic interference (EMI) can
(D) 343 meters per minute include
(A) An electrical power supply located too close to an
audio transmission source.
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