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PLTW Digital Electronics - Final Review Set
1, PLTW Digital Electronics - Final Review
Set 2, PLTW Digital Electronics - Final
Review Set 3, Digital Electronics - PLTW
Review Test
If an integrated circuit has been damaged and you smell smoke, you
should__________________. - CORRECT ANSWER>>Turn the
power off for a few minutes before pulling out the damaged integrated
circuit.
In scientific notation, which prefixes are used for values smaller than a
whole value? - CORRECT ANSWER>>Micro, nano, milli
What is the value of the resistor with colors blue, grey, red , gold ? -
CORRECT ANSWER>>6.8 K Ω ±5 %
What are the color bands for a 390 Ω (±10) resistor? - CORRECT
ANSWER>>ORANGE-WHITE-BROWN-SILVER
In a parallel circuit, you measure 1.5 mAmps flowing through a 600 Ω
resistor. What is the voltage drop across the resistor? Use Ohms law. -
CORRECT ANSWER>>900 m Volts
What is the decimal equivalent to the binary number 0101102? -
CORRECT ANSWER>>22 power of 10
In the eight-bit binary number shown below, which bit is the Least
Significant Bit
(LSB)?
b7b6 b5 b4 b3 b2 b1 b0
1 0 1 1 0 1 0 1 - CORRECT ANSWER>>B 0 (zero)
Which of the following is a rule of Boolean algebra?
1. AA • 0 = A
2. AB • 1= 1
3. A • A = A
4. AC • A = 1 - CORRECT ANSWER>>A • A = A
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What is the binary equivalent to the decimal number 1310? -
CORRECT ANSWER>>1101
What is the decimal equivalent to the binary number 0101102? -
CORRECT ANSWER>>22 base 10
What is the binary equivalent to the hexadecimal number CH -
CORRECT ANSWER>>11002
Which of the following equations is the un-simplified Sum-Of-Products
equation for the truth table shown below with F as the Output?
XYZF
0000
0011
0101
0110
1000
1010
1101
1 1 1 0 - CORRECT ANSWER>>F = X' Y' Z + X' Y Z' + X Y Z'
What is the letter symbol for current? - CORRECT ANSWER>>I
Which of the following is a correct DeMorgan's Identity?
1.. XY" = X'•Y'
2. XY" = X'•Y
3. XY" = X' + Y'
4. XY = X + Y - CORRECT ANSWER>>XY" = X' + Y'
. Which of the following is the simplified equivalent for the Boolean
equation shown?
F = Y' +XY'
1. F = X ''Y''
2. F = X
3. F = X Y'
4. F = Y' - CORRECT ANSWER>>F = Y'
Which Boolean equation is in Product-Of-Sums form?
1. F = X Y Z + X Y + X Y Z
2. F = X Y Z + Z (X + Y)
3. F = (X + Y)(X+ Z)(Y + Z)
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4. F = X Z(Y + Z)(Y + Z) - CORRECT ANSWER>>F = (X + Y)(X+ Z)(Y
+ Z)
Which of the following Boolean equation is in Sum-Of-Products form?
1. F = A B' C + A B C + A
2. F = (A')(B')(BC)(ABC)
3. F = (10010)11101001)
4. F = A' (B + C) A (B' + C) - CORRECT ANSWER>>F = A B' C + A B
C+A
What is the minimum number of flip-flops needed to build a Mod-10
Asynchronous counter?
1. 32
2. 64
3. 4
4. 10 - CORRECT ANSWER>>4
Which of the following statements applies to asynchronous counters?
1. Asynchronous counters are faster than synchronous counters.
2. Asynchronous counters require more power than synchronous
counters.
3. All the flip-flops in an Asynchronous counter are clocked at the same
time by a
common external clock.
4. Asynchronous counters are also called ripple counters. - CORRECT
ANSWER>>Asynchronous counters are also called ripple counters.
Propagation delay is _________________________.
1. A measure of the ability of a logic gate to drive further logic gates.
2. The difference in chip temperature from when the power is off to
when the power is on.
3. The difference between what a logic gate outputs as a valid logic
voltage and what the input of the next gates expects to see as a valid
logic voltage.
4. The time required for a signal to travel from
PLTW Digital Electronics - Final Review Set
1, PLTW Digital Electronics - Final Review
Set 2, PLTW Digital Electronics - Final
Review Set 3, Digital Electronics - PLTW
Review Test
If an integrated circuit has been damaged and you smell smoke, you
should__________________. - CORRECT ANSWER>>Turn the
power off for a few minutes before pulling out the damaged integrated
circuit.
In scientific notation, which prefixes are used for values smaller than a
whole value? - CORRECT ANSWER>>Micro, nano, milli
What is the value of the resistor with colors blue, grey, red , gold ? -
CORRECT ANSWER>>6.8 K Ω ±5 %
What are the color bands for a 390 Ω (±10) resistor? - CORRECT
ANSWER>>ORANGE-WHITE-BROWN-SILVER
In a parallel circuit, you measure 1.5 mAmps flowing through a 600 Ω
resistor. What is the voltage drop across the resistor? Use Ohms law. -
CORRECT ANSWER>>900 m Volts
What is the decimal equivalent to the binary number 0101102? -
CORRECT ANSWER>>22 power of 10
In the eight-bit binary number shown below, which bit is the Least
Significant Bit
(LSB)?
b7b6 b5 b4 b3 b2 b1 b0
1 0 1 1 0 1 0 1 - CORRECT ANSWER>>B 0 (zero)
Which of the following is a rule of Boolean algebra?
1. AA • 0 = A
2. AB • 1= 1
3. A • A = A
4. AC • A = 1 - CORRECT ANSWER>>A • A = A
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What is the binary equivalent to the decimal number 1310? -
CORRECT ANSWER>>1101
What is the decimal equivalent to the binary number 0101102? -
CORRECT ANSWER>>22 base 10
What is the binary equivalent to the hexadecimal number CH -
CORRECT ANSWER>>11002
Which of the following equations is the un-simplified Sum-Of-Products
equation for the truth table shown below with F as the Output?
XYZF
0000
0011
0101
0110
1000
1010
1101
1 1 1 0 - CORRECT ANSWER>>F = X' Y' Z + X' Y Z' + X Y Z'
What is the letter symbol for current? - CORRECT ANSWER>>I
Which of the following is a correct DeMorgan's Identity?
1.. XY" = X'•Y'
2. XY" = X'•Y
3. XY" = X' + Y'
4. XY = X + Y - CORRECT ANSWER>>XY" = X' + Y'
. Which of the following is the simplified equivalent for the Boolean
equation shown?
F = Y' +XY'
1. F = X ''Y''
2. F = X
3. F = X Y'
4. F = Y' - CORRECT ANSWER>>F = Y'
Which Boolean equation is in Product-Of-Sums form?
1. F = X Y Z + X Y + X Y Z
2. F = X Y Z + Z (X + Y)
3. F = (X + Y)(X+ Z)(Y + Z)
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4. F = X Z(Y + Z)(Y + Z) - CORRECT ANSWER>>F = (X + Y)(X+ Z)(Y
+ Z)
Which of the following Boolean equation is in Sum-Of-Products form?
1. F = A B' C + A B C + A
2. F = (A')(B')(BC)(ABC)
3. F = (10010)11101001)
4. F = A' (B + C) A (B' + C) - CORRECT ANSWER>>F = A B' C + A B
C+A
What is the minimum number of flip-flops needed to build a Mod-10
Asynchronous counter?
1. 32
2. 64
3. 4
4. 10 - CORRECT ANSWER>>4
Which of the following statements applies to asynchronous counters?
1. Asynchronous counters are faster than synchronous counters.
2. Asynchronous counters require more power than synchronous
counters.
3. All the flip-flops in an Asynchronous counter are clocked at the same
time by a
common external clock.
4. Asynchronous counters are also called ripple counters. - CORRECT
ANSWER>>Asynchronous counters are also called ripple counters.
Propagation delay is _________________________.
1. A measure of the ability of a logic gate to drive further logic gates.
2. The difference in chip temperature from when the power is off to
when the power is on.
3. The difference between what a logic gate outputs as a valid logic
voltage and what the input of the next gates expects to see as a valid
logic voltage.
4. The time required for a signal to travel from
