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Discussion
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Digital Electronics
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Number Systems and Codes
See What Others Are Saying!
Question
The binary number 11101011000111010 can be written in hexadecimal as ________.
Options
A. DD63A
16
B. 1D63A
16
C. 1D33A
16
D. 1D631
16
Correct Answer
1D63A
16
More questions
1. A correct output is achieved from a master-slave
J-K
flip-flop only if its inputs are stable while the:
Options
A. clock is LOW
B. slave is transferring
C. flip-flop is reset
D. clock is HIGH
Show Answer
Scratch Pad
Discuss
Correct Answer: clock is HIGH
2. In VHDL, macrofunctions is/are:
Options
A. digital circuits.
B. analog circuits.
C. a set of bit vectors.
D. preprogrammed TTL devices.
Show Answer
Scratch Pad
Discuss
Correct Answer: preprogrammed TTL devices.
3. A J-K flip-flop is in a "no change" condition when ________.
Options
A. J = 1, K = 1
B. J = 1, K = 0
C. J = 0, K = 1
D. J = 0, K = 0
Show Answer
Scratch Pad
Discuss
Correct Answer: J = 0, K = 0
4. PMOS and NMOS circuits are used largely in ________.
Options
A. MSI functions
B. LSI functions
C. diode functions
D. TTL functions
Show Answer
Scratch Pad
Discuss
Correct Answer: LSI functions
5. ________ counters are often used whenever pulses are to be counted and the results displayed in decimal.
Options
A. Synchronous
B. Bean
C. Decade
D. BCD
Show Answer
Scratch Pad
Discuss
Correct Answer: BCD
6. Assume that in a certain 4-bit weighted ladder DAC, the input representing the most significant bit is applied to a 20 kΩ resistor. What is the size of the resistor that represents the least significant bit?
Options
A. 2.5 kΩ
B. 5 kΩ
C. 80 kΩ
D. 160 kΩ
Show Answer
Scratch Pad
Discuss
Correct Answer: 160 kΩ
7. In an AHDL BCD to binary coded converter, multiplication by 10 is performed by ________.
Options
A. a multiplication operator
B. shifting bits
C. a library function
D. a variable type
Show Answer
Scratch Pad
Discuss
Correct Answer: a multiplication operator
8. The PAL structure is able to perform any sum-of-products (SOP) operation.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
9. Which of the K-maps given below represents the expression
X
=
AC
+
BC
+
B
?
Options
A. a
B. b
C. c
D. d
Show Answer
Scratch Pad
Discuss
Correct Answer: c
10. What will a design engineer do after he/she is satisfied that the design will work?
Options
A. Put it in a flow chart
B. Program a chip and test it
C. Give the design to a technician to verify the design
D. Perform a vector test
Show Answer
Scratch Pad
Discuss
Correct Answer: Program a chip and test it
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Integrated Circuit Technologies
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