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Test 1 Study for Final

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Nuclear Program Quiz on Test 1 Study for Final , created by Katrina Himes on 08/05/2018.
Katrina Himes
Quiz by Katrina Himes, updated more than 1 year ago
Katrina Himes
Created by Katrina Himes over 6 years ago
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Resource summary

Question 1

Question
A real voltage source has
Answer
  • Zero internal resistance
  • Infinite internal resistance
  • A small internal resistance
  • A large internal resistance

Question 2

Question
If a load resistance is 100 Ω, a stiff voltage source has a resistance of
Answer
  • Less than 1 Ω
  • At least 10 Ω
  • More than 10 kΩ
  • Less than 10 kΩ

Question 3

Question
The Thevenin voltage is the same as the
Answer
  • Shorted-load voltage
  • Open-load voltage
  • Ideal source voltage
  • Norton voltage

Question 4

Question
An open resistor has
Answer
  • Infinite current through it
  • Zero voltage across it
  • Infinite voltage across it
  • Zero current through it

Question 5

Question
A shorted resistor has
Answer
  • Infinite current through it
  • Zero voltage across it
  • Infinite voltage across it
  • Zero current through it

Question 6

Question
The voltage out of an ideal voltage source
Answer
  • Is zero
  • Is constant
  • Depends on the value of load resistance
  • Depends on the internal resistance

Question 7

Question
Assume the valence electron is removed from a copper atom. The net charge of the atom becomes
Answer
  • 0
  • +1
  • -1
  • +4

Question 8

Question
Which is the most widely used semiconductor?
Answer
  • Copper
  • Germanium
  • Silicon
  • None of the above

Question 9

Question
Silicon atoms combine into an orderly pattern called a
Answer
  • Covalent bond
  • Crystal
  • Semiconductor
  • Valence orbit

Question 10

Question
The flow of valence electrons to the right means that holes are flowing to the
Answer
  • Left
  • Right
  • Either way
  • None of the above

Question 11

Question
Trivalent atoms have how many valence electrons?
Answer
  • 1
  • 3
  • 4
  • 5

Question 12

Question
Negative ions are atoms that have
Answer
  • Gained a proton
  • Lost a proton
  • Gained an electron
  • Lost an electron

Question 13

Question
What is the barrier potential of a silicon diode at room temperature?
Answer
  • 0.3 V
  • 0.7 V
  • 1 V
  • 2 mV per degree Celsius

Question 14

Question
The voltage where avalanche occurs is called the
Answer
  • Barrier potential
  • Depletion layer
  • Knee voltage
  • Breakdown voltage

Question 15

Question
When the diode current is large, the bias is
Answer
  • Forward
  • Inverse
  • Poor
  • Reverse

Question 16

Question
The knee voltage of a diode is approximately equal to the
Answer
  • Applied voltage
  • Barrier potential
  • Breakdown voltage
  • Forward voltage

Question 17

Question
The ideal diode is usually adequate when
Answer
  • Troubleshooting
  • Doing precise calculations
  • The source voltage is low
  • The load resistance is low

Question 18

Question
The second approximation works well when
Answer
  • Troubleshooting
  • Load resistance is high
  • Source voltage is high
  • All of the above

Question 19

Question
If the line frequency is 60 Hz, the output frequency of a bridge rectifier is
Answer
  • 30 Hz
  • 60 Hz
  • 120 Hz
  • 240 Hz

Question 20

Question
With the same secondary voltage and filter, which has the most ripple?
Answer
  • Half-wave rectifier
  • Full-wave rectifier
  • Bridge rectifier
  • Impossible to say

Question 21

Question
If the secondary voltage increases in a bridge rectifier with a capacitor-input filter, the load voltage will
Answer
  • Decrease
  • Stay the same
  • Increase
  • None of these

Question 22

Question
If the filter capacitance is increased, the ripple will
Answer
  • Decrease
  • Stay the same
  • Increase
  • None of these

Question 23

Question
A circuit that removes positive or negative parts of a waveform is called a
Answer
  • Clamper
  • Clipper
  • Diode clamp
  • Limiter

Question 24

Question
With a half-wave rectified voltage across the load resistor load current flows for what part of a cycle?
Answer
  • 0°
  • 90°
  • 180°
  • 360°

Question 25

Question
A circuit that adds a positive or negative dc voltage to an input sine wave is called a
Answer
  • Clamper
  • Clipper
  • Diode clamp
  • Limiter
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