WorksheetsBoolean expressions, Data converters and semiconductor memories
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
What is the 2’s complement of binary number 011010?
a)
100110
b)
100101
c)
011011
d)
101010
2.
The Boolean expression A+A′B simplifies to:
a)
A+B
b)
A
c)
B
d)
AB
3.
According to the Complement Law:
a)
A+A′=0
b)
A⋅A′=1
c)
A+A′=1
d)
A⋅A′=A
4.
Which of the following is true by DeMorgan’s theorem?
a)
(A+B)′=A′+B′
b)
(A⋅B)′=A′⋅B′
c)
(A+B)′=A′⋅B′
d)
(A⋅B)′=A′+B′
5.
The absorption law states:
a)
A+AB=A
b)
A(A+B)=A
c)
Both (a) and (b)
d)
None of the above
6.
An 8-bit DAC has a full-scale output voltage of 10.24 V. What is its resolution?
a)
20 mV
b)
40 mV
c)
10 mV
d)
80 mV
7.
Which type of ADC is the fastest?
a)
Successive Approximation
b)
Flash ADC
c)
Dual Slope
d)
Counter Type
8.
Which memory is volatile?
a)
ROM
b)
EPROM
c)
SRAM
d)
Flash
9.
DRAM stores data using:
a)
Flip-flops
b)
Capacitors
c)
Magnetic cells
d)
Floating gates
10.
Which memory is programmed once and cannot be erased?
a)
PROM
b)
EPROM
c)
EEPROM
d)
Flash
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