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Test your basic knowledge |
Digital Fundamentals
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Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Sum of all currents entering a node is equal to the sum of all currents leaving the same node
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2. To connect 'end- to- end' as when several counters are connected from the terminal count output of one counter to the enable input of the next counter
Circuit Breaker
Vx=(Vs * Rx) /RT
ANSI
Cascade
3. A number given in ampere- hours determined by multiplying the current times the length of the time (h) a battery can deliver that current to a load
Circular Mil (CM)
Decoder
Ampere- hour(Ah) rating
Clock
4. A bridge circuit that is in the balanced state as indicated by 0 V across the output.
Analog- to- digital converter(ADC)
Array
Branch Current
Balanced Bridge
5. A VHDL feature that can be used to predefine the logic function for multiple use throughout a program or programs
Acceptor
Component
Capacitance
Thevenin Equivalent Circuit
6. A nominally continuous electrical signal that varies in amplitude or frequency in response to changes in sound - light - heat - position - or pressure.
Bus arbitration
CMOS Complementary Metal Oxide Semiconductor
Analog- to- digital converter(ADC)
Analog
7. The opposition of a capacitor to permit current; the reciprocal of capacitive reactance. The unit is the siemens.
Capacitance Reactance
Bandwidth
Design flow
CLB (Configurable Logic Block)
8. A type of counter in which each stage is clocked from the output of the preceding stage.
CMOS Complementary Metal Oxide Semiconductor
Asynchronous counter
Bus
Center Tap
9. The main part of a computer responsible for control and processing of data; the core of a DSP that processes the program instructions
DTE
Balanced Bridge
AND gate
Central processing unit
10. One of the three regions in a bipolar Junction transistor(North junction of NpN)
Decrement
Analog
Collector
Bit time
11. A unit of logic in an FPGA that is made up of multiple smaller logic modules and a local programmable interconnect that is used to connect logic modules within the CLB
AHDL
CLB (Configurable Logic Block)
Debug
Counter
12. A theorem that states that any amount of voltage sources and current sources can be combined into a single current source with a parallel resistor.
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13. The maximum value of a voltage or current
Boolean multiplication
Current sinking
Atomic number
Amplitude
14. The number of protons in a nucleus
Address
Atomic number
DRAM
Kirchoff's Current Law(KCL)
15. Digital audio tape; a type of magnetic tape format
Boundary scan
Analog- to- digital (A/D) conversion
DAT
Angular Velocity
16. The effect created when a signal is sampled at less than twice the signal frequency. Aliasing creates unwanted frequencies that interfere with the signal frequency.
ASCII
Component
Aliasing
Base
17. A set of conductive paths hat connects the CPU to other parts of the computer to coordinate its operations and to communicate with external devices
Analog
AWG
Control Bus
Decade Counter
18. A type of IC package whose leads must pass through holes to the other side of a PC board
Byte
Dual in - line package
BIOS
Binary
19. A logic gate that produces a High output only when all of the inputs are HIGH
Access time
AND gate
Binary coded decimal
Demultiplexer
20. In a PLD - a matrix formed by rows of product- term lines columns of input lines with a programmable cell at each junctions. In VHDL - an array is an ordered set of individual items called elements with a single identifier name.
Array
Data Selector
Choke
Capacitance Reactance
21. A method of analog- to- digital conversion using a 1- bit quantization process
Distributive Law
Delta Modulation
Analog- to- digital (A/D) conversion
Aliasing
22. A unit of the cross - sectional area of a wire.
Current sinking
ABEL(Advance Boolean Expression Language)
Circular Mil (CM)
Bistable
23. Consisting of numerals - letters - and other characters
Digital linear tape
Bode Plot
Alphanumeric
DSP
24. In addition (Oring) and multiplication (ANDing) of three or more variables - the order in which the variables are grouped makes no difference
Associative law
ANSI
DCE
Closed circuit
25. A digital code in which each of the decimal digits - 0 through 9 - is represented by a group of four bits
Buffer
BEDO DRAM
Binary coded decimal
Dual in - line package
26. A bidirectional set of conductive paths on which data or instruction codes are transferred into a microprocessor or on which the result of an operation is sent out from the microprocessor
BJT
DAT
Data bus
Concurrency
27. A type of PLD nonvolatile programmable link that can be left open or can be shorted once as directed by the program
Balanced Bridge
Antifuse
Branch
Charge- coupled device
28. A complex programmable logic device that consists basically of muliple SPLD arrays with programmable interconnections.
CPLD
Branch
Amplitude
DTE
29. A two terminal circuit containing voltage sources - current sources - and resistors can be modeled as a voltage source in series with a resistor
Adder
Distributive Law
Thevenin Equivalent Circuit
Carry propagation
30. Data Communications equipment
DCE
CMOS
Distributive Law
Digital linear tape
31. In a pulse waveform - the height or maximum value of the pulse as measured from its low level.
Buffer
ASCII
Choke
Amplitude
32. Basic input/output system; a set of programs in ROM that interfaces the I/) devices in a computer system
Boundary scan
CPLD
Decrement
BIOS
33. Bipolar junction transistor; a semiconductor device used for switching or amplification. A BJT has two junctions - the base- emitter junction and the base- collector junction
DTE
Boolean expression
BJT
Center Tap
34. In addition (ORing) and multiplication (ANDing) of two variables the order in which the variables are ORed or ANDed makes no difference
Bit
Central processing unit
Commutative Law
TTL
35. A digital counter having ten states
Decade Counter
CPLD
Carry generation
Controller
36. The ability of a capacitor to store electrical charge.
Admittance
Vx=(Vs * Rx) /RT
Dynamic Memory
Capacitance
37. One of the three regions in a bipolar junction transistor
Aliasing
Base
Decimal
CMOS
38. In relation to VHDL feature that permits operations to be processed in a parallel;that is operations that occur simultaneously
Concurrency
Kirchoff's Voltage Law
Carry propagation
Bus contention
39. A combined coder and decoder
Code
Bandwidth
Astable
DAT
40. A circuit that selects data from several inputs one at a time in a sequence and places them on the output; also called a multiplexer.
Decrement
Boolean addition
Clock
Data Selector
41. A programming language that uses English like words and has a one- to- one correspondence to machine language
Acceptor
Assembly language
Analog- to- digital (A/D) conversion
Balanced Load
42. Having two directions. the stored data can be shifted right or left
Dual in - line package
Base
Ampere
Bidirectional shift Register
43. In a division operation the quantity that is being divided
Combinational logic
Clear
Buffer
Dividend
44. Transistor-Transistor Logic and is implemented with bipolar junction transistors
Comparator
DRAM
TTL
Apparent power
45. A group of eight bits
DAT
Byte
DCE
Ampere
46. A digital circuit capable of counting electronic events - such as pulses - by progressing through a sequence of binary states.
Autotransformer
Counter
Balanced Load
Comparator
47. A series of bits describing a final design that is sent to the target device during programming
Bitstream
CMOS Complementary Metal Oxide Semiconductor
Demultiplexer
AHDL
48. A relatively small - high- speed memory that stores the most recently used instructions or data from the larger but slower main memory
Cache memory
Clock
Branch Current
Bistable
49. The phasor combination of resistive power (true power) and reactive power. The unit is the volt- amperes (VA).
Demultiplexer
Branch Current
Boolean algebra
Apparent power
50. The rotational rate of a phasor which is related to the frequency of the sine wave that the phasor represents
Choke
Angular Velocity
Balanced Load
Autotransformer
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