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Test your basic knowledge |
Digital Fundamentals
Start Test
Study First
Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
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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. A two terminal circuit containing voltage sources - current sources - and resistors can be modeled as a voltage source in series with a resistor
Kirchoff's Voltage Law
Thevenin Equivalent Circuit
Assembler
DRAM
2. An electrical device consisting of two conductive plates separated by an insulating material and possessing the property of capacitance.
Battery
Capacitor
Apparent power
Admittance
3. A binary digit - which can be either 1 or 0
Bit
Astable
Carry
ANSI
4. 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
bed- of- nails
DRAM
Collector
BJT
5. In a division operation the quantity that is being divided
Dividend
AND gate
Don't Care...
Diode
6. In Boolean algebra - the OR operation
Alphanumeric
Astable
Debug
Boolean addition
7. A logic gate that produces a High output only when all of the inputs are HIGH
Delta Modulation
AND gate
Boolean addition
Access time
8. A VHDL feature that can be used to predefine the logic function for multiple use throughout a program or programs
Component
Amplitude
Capacitance
Admittance
9. The time from the application of a valid memory address to the appearance of valid output data
Asynchronous counter
DSP
Access time
DCE
10. 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
Base address
Control Bus
Base
Debug
11. A filter that rejects a range of frequencies lying between two critical frequencies and passes frequencies above and below that range.
Amplitude
Design flow
Band- stop filter
Bleeder Current
12. A receiving device on a bus
Data Selector
Acceptor
DMA
Data
13. 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
Amplitude
Data bus
Delta Modulation
Admittance
14. In addition - the number that is added to another number called the augend
Component
Counter
Addend
Bus interface unit
15. A device used to convert an analog signal to a sequence of digital codes
Center Tap
CMOS
Dependency notation
Analog- to- digital converter(ADC)
16. The application of a dc voltage to an electronic device to produce a desired mode of operation
ANSI
Circuit
Bias
Carry propagation
17. A method for the automated testing of printed circuit boards in which the board is mounted on a fixture that resembles a bed of nails that makes contact with test points
Augend
Clock
Kirchoff's Current Law(KCL)
bed- of- nails
18. The VHDL unit that describes the internal operation of a logic function; the internal functional arrangement of the elements that give a device its particular operating characteristics.
DCE
Bleeder Current
Architecture
Analog- to- digital converter(ADC)
19. A combined coder and decoder
Ammeter
Bit time
Dividend
Code
20. A reduction of the output signal compared to the input signal - resulting in a ratio with a value of less than 1 for the output voltage to the input voltage of a circuit.
Current sinking
Counter
Attenuation
Combinational logic
21. A group of eight bits
AND
Ampere- hour(Ah) rating
Byte
Analog
22. An electrical instrument used to measure current
Ammeter
Ampere- hour(Ah) rating
CMOS
Byte
23. A type of PLD nonvolatile programmable link that can be left open or can be shorted once as directed by the program
Center Tap
Duty cycle
Decimal
Antifuse
24. The unit of electrical current
Battery
Ampere
Circuit
Central processing unit
25. A connection at the midpoint of a winding in a transformer
Center Tap
Address
AND array
Comparator
26. A type of bistable multivibrator in which the output assumes the state of the D input on the triggering edge of a clock pulse.
D Flip-Flop
Address Bus
AWG
Dividend
27. A transformer in which the primary and secondary are in a single winding
Ampere
Kirchoff's Voltage Law
Autotransformer
Charge
28. The actual current in a branch
Counter
ASCII
Amplitude
Branch Current
29. A complex programmable logic device that consists basically of muliple SPLD arrays with programmable interconnections.
AWG
CPLD
ABEL(Advance Boolean Expression Language)
BIOS
30. A circuit (digital service) that switches digital data from one input line to several output lines in a specified time sequence
Base address
Demultiplexer
Boolean algebra
Decode
31. A basic logic operation in which a true(high) output occurs only when all the input conditions are true (high)
Bipolar
Ammeter
AND
Combinational logic
32. Basic input/output system; a set of programs in ROM that interfaces the I/) devices in a computer system
BIOS
Angular Velocity
Decade Counter
Compiler
33. Voltage Divider Rule in determining TEC Thevenin Equivalence Circuit
Base address
Vx=(Vs * Rx) /RT
Decoder
Antifuse
34. Altera HDL; a nonstandard HDL
Astable
DMA
Component
AHDL
35. The process of producing an output carry in full- adder when both input bits are 1s.
Control Bus
Carry generation
Carry propagation
Ammeter
36. A measure of the ability of a reactive circuit to permit current; the reciprocal of impedance. the unit is the siemens
ALU
AWG
Array
Admittance
37. The portion within the microprocessor that provides the timing and control signals for getting data into and out of the microprocessor and for synchronizing the execution of instructions.
Controller
Control Unit
Binary coded decimal
Balanced Load
38. One of the three regions in a bipolar Junction transistor(North junction of NpN)
Data Selector
Decoder
Collector
Adder
39. The mathematics of logic circuits
TTL
Assembler
Boolean algebra
Addend
40. A relatively small - high- speed memory that stores the most recently used instructions or data from the larger but slower main memory
Cache memory
DRAM
Base address
DSP
41. A code within DOS that allows various operations on files and includes a primitive assembler; to eliminate a problem in hardware or software.
Debug
Analog- to- digital converter(ADC)
Bipolar
DMA
42. A programming language that uses English like words and has a one- to- one correspondence to machine language
Baseline
Decode
Center Tap
Assembly language
43. A type of IC package whose leads must pass through holes to the other side of a PC board
bed- of- nails
Kirchoff's Voltage Law
Dual in - line package
Base address
44. In a pulse waveform - the height or maximum value of the pulse as measured from its low level.
Commutative Law
Dependency notation
Amplitude
Address
45. Consisting of numerals - letters - and other characters
Component
Compiler
Bipolar
Alphanumeric
46. Characterized by ten states or values
Code
Band- stop filter
Decade
Bidirectional shift Register
47. The maximum value of a voltage or current
Bandwidth
Addend
Dividend
Amplitude
48. Describes a number system with a base of ten
Base
D Flip-Flop
Decrement
Decimal
49. 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.
Antifuse
Array
AND
Circuit
50. The rotational rate of a phasor which is related to the frequency of the sine wave that the phasor represents
Comparator
Circuit
AND array
Angular Velocity
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