CuriousTab
CuriousTab
Home
Aptitude
Computer
C Programming
C# Programming
C++ Programming
Database
Java Programming
Networking
Engineering
Biochemical Engineering
Biochemistry
Biotechnology
Chemical Engineering
Civil Engineering
Computer Science
Digital Electronics
Electrical Engineering
Electronics
Electronics and Communication Engineering
Mechanical Engineering
Microbiology
Technical Drawing
GK
Current Affairs
General Knowledge
Reasoning
Data Interpretation
Logical Reasoning
Non Verbal Reasoning
Verbal Ability
Verbal Reasoning
Exams
AIEEE
Bank Exams
CAT
GATE
IIT JEE
TOEFL
Jobs
Analyst
Bank Clerk
Bank PO
Database Administrator
IT Trainer
Network Engineer
Project Manager
Software Architect
Discussion
Home
‣
Digital Electronics
‣
Digital System Projects Using HDL
See What Others Are Saying!
Question
In a frequency counter, what happens at high frequencies when the sampling interval is too long?
Options
A. The counter works fine.
B. The counter undercounts the frequency.
C. The measurement is less precise.
D. The counter overflows.
Correct Answer
The counter overflows.
More questions
1. The problem of interfacing IC logic families that have different supply voltages (
V
CC
's) can be solved by using a:
Options
A. level-shifter
B. tristate shifter
C. decoupling capacitor
D. pull-down resistor
Show Answer
Scratch Pad
Discuss
Correct Answer: level-shifter
2. Hexadecimal 12 is ________in binary.
Options
A. 00010111
B. 00010100
C. 00010010
D. 00100001
Show Answer
Scratch Pad
Discuss
Correct Answer: 00010010
3. A NAND gate has:
Options
A. active-LOW inputs and an active-HIGH output.
B. active-LOW inputs and an active-LOW output.
C. active-HIGH inputs and an active-HIGH output.
D. active-HIGH inputs and an active-LOW output.
Show Answer
Scratch Pad
Discuss
Correct Answer: active-HIGH inputs and an active-LOW output.
4. The 8051 is a 40-pin IC. Twenty-two pins are needed for the four I/O ports.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: False
5. What gives a GAL its flexibility?
Options
A. Its speed
B. Its reprogrammable EPROM
C. Its large logic arrays
D. Its programmable OLMCs
Show Answer
Scratch Pad
Discuss
Correct Answer: Its programmable OLMCs
6. FPGA is the acronym for ________.
Options
A. Flexible Programming [of] Generic Assemblies
B. Field Programmable Generic Array
C. Field Programmable Gate Array
D. Field Programmer's Gate Assembly
Show Answer
Scratch Pad
Discuss
Correct Answer: Field Programmable Gate Array
7. The binary adder circuit is designed to add ________ binary numbers at the same time.
Options
A. 2
B. 4
C. 6
D. 8
Show Answer
Scratch Pad
Discuss
Correct Answer: 2
8. When using edge-triggered flip-flops, the data is entered into the flip-flop on the leading edge of the clock, but the output does not change until the trailing edge of the clock.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: False
9. The 74LS382 ALU is a 24-pin arithmetic/logic unit.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: False
10. A look-up table is simply a truth table with all the possible output connections listed with their desired input response.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: False
Comments
There are no comments.
Enter a new Comment
Save
More in Digital Electronics:
Boolean Algebra and Logic Simplification
Code Converters and Multiplexers
Combinational Logic Analysis
Combinational Logic Circuits
Computers
Counters
Describing Logic Circuits
Digital Arithmetic Operations and Circuits
Digital Concepts
Digital Design
Digital Signal Processing
Digital System Projects Using HDL
Ex-OR and Ex-NOR Gates
Flip-Flops
Integrated-Circuit Logic Families
Integrated Circuit Technologies
Interfacing to the Analog World
Logic Families and Their Characteristics
Logic Gates
Memory and Storage
Microprocessor Fundamentals
MSI Logic Circuits
Multivibrators and 555 Timer
Number Systems and Codes
Programmable Logic Device
Shift Registers
Signals and Switches
The 8051 Microcontroller