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Test your basic knowledge |
Digital Fundamentals
Start Test
Study First
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. A circuit that prevents loading of an input or output
ABEL(Advance Boolean Expression Language)
Bus interface unit
Buffer
ASCII
2. In addition - the number to which the addend is added
Counter
Access time
Augend
Carry
3. The phasor combination of resistive power (true power) and reactive power. The unit is the volt- amperes (VA).
Attenuation
Addend
Ampere- hour(Ah) rating
Apparent power
4. The opposition of a capacitor to permit current; the reciprocal of capacitive reactance. The unit is the siemens.
Branch Current
Capacitance Reactance
Collector
Charge- coupled device
5. An arrangement of electrical and/or electronic components interconnected in such a way as to perform a specified function
Closed circuit
Circuit
Assembler
Antifuse
6. A complex programmable logic device that consists basically of muliple SPLD arrays with programmable interconnections.
Bus interface unit
CPLD
Circuit Breaker
Battery
7. A device used to convert an analog signal to a sequence of digital codes
Analog- to- digital converter(ADC)
BJT
Balanced Load
DIMM
8. A type of IC package whose leads must pass through holes to the other side of a PC board
Acceptor
Choke
Dual in - line package
Ammeter
9. Basic input/output system; a set of programs in ROM that interfaces the I/) devices in a computer system
Duty cycle
Amplitude
BIOS
Atom
10. In addition (ORing) and multiplication (ANDing) of two variables the order in which the variables are ORed or ANDed makes no difference
Commutative Law
ANSI
Baseline
Astable
11. A basic logic operation in which a true(high) output occurs only when all the input conditions are true (high)
Bleeder Current
Demultiplexer
DAT
AND
12. A circuit (digital service) that switches digital data from one input line to several output lines in a specified time sequence
DSP
Decade
Demultiplexer
Analog- to- digital (A/D) conversion
13. American wire gauge; a standardization based on wire diameter
AWG
Baseline
Capacitor
Counter
14. The total number of data units(bits - nibbles - bytes - words) that a memory can store.
Boolean expression
Capacity
Associative law
Control Bus
15. The application of a dc voltage to an electronic device to produce a desired mode of operation
DCE
Thevenin Equivalent Circuit
Current sinking
Bias
16. Sum of all currents entering a node is equal to the sum of all currents leaving the same node
17. A stage of the DSP pipeline operation in which instructions are assigned to functional units and are decoded.
Access time
Capacitor
Decade
Decode
18. A receiving device on a bus
Decoder
Acceptor
Concurrency
Balanced Load
19. 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.
20. The time from the application of a valid memory address to the appearance of valid output data
Bipolar
Component
Access time
ASCII
21. The process of rippling an input carry to become the output carry in a full- adder when either or both of the input bits are 1's and the input carry is a 1
D Flip-Flop
Branch Current
Carry propagation
Atomic number
22. An instrument that can specify each of the other instruments on the bus as either a talker or a listener for the purpose of data transfer.
DCE
Controller
Decrement
Bipolar
23. The rotational rate of a phasor which is related to the frequency of the sine wave that the phasor represents
Decade
Angular Velocity
Analog
Circuit
24. An electrical instrument used to measure current
Vx=(Vs * Rx) /RT
Ammeter
Decade Counter
Amplitude
25. A software compiler language for SPLD programming; a type of hardware description language (HDL)
Aliasing
ABEL(Advance Boolean Expression Language)
Dependency notation
Duty cycle
26. A interconnection of electrical components designed to produce a desired result. A basic circuits consists of a source - a load and an interconnecting current path.
Circuit
Carry propagation
ALU
Ammeter
27. Consisting of numerals - letters - and other characters
Data
Alphanumeric
Bitstream
Center Tap
28. A type of inductor used to block or choke off high frequencies
Attenuation
Current sinking
Choke
Bidirectional shift Register
29. In addition (Oring) and multiplication (ANDing) of three or more variables - the order in which the variables are grouped makes no difference
Combinational logic
Associative law
Band- stop filter
Dual in - line package
30. A type of semiconductor memory that stores data in the form of charge packets and is serially accessed
DSP
Atom
Charge- coupled device
DRAM
31. A one- way group of conductors from the to a memory - or other external device - on which the address code is sent
Address Bus
Data
Carry
Antifuse
32. 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.
Don't Care...
Aliasing
Capacitance Reactance
Kirchoff's Voltage Law
33. An array of AND gates consisting of a matrix of programmable interconnection
Bus arbitration
BEDO DRAM
AND array
Branch
34. 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
Bitstream
bed- of- nails
Concurrency
CMOS Complementary Metal Oxide Semiconductor
35. A bridge circuit that is in the balanced state as indicated by 0 V across the output.
Balanced Bridge
Autotransformer
Cache memory
Charge
36. A code within DOS that allows various operations on files and includes a primitive assembler; to eliminate a problem in hardware or software.
DSP
Debug
Control Unit
Ampere
37. The basic timing signal in a digital system; a periodic waveform in which the interval between pulses equals the time for one bit; the triggering input of a flip- flop
Boolean multiplication
Cache memory
Clock
Norton's Theorem
38. Arithmetic Logic Unit; the key processing element of a microprocessor that perfoms arithmetic and logic operations.
Adder
Thevenin Equivalent Circuit
ALU
Angular Velocity
39. A electrical property of matter that exist because of an excess or a deficiency of electrons. Can be either positive or negative
Dependency notation
Charge
Amplitude
Attenuation
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.
Combinational logic
Cross - assembler
Data Selector
Assembler
41. In addition - the number that is added to another number called the augend
AND gate
Addend
DCE
Base
42. Characteristic of cells in a Karnaugh map in which there is a single- variable change from one cell to another cell next to it on any of its four sides
Collector
Adjacency
Combinational logic
Commutative Law
43. A notational system for logic symbols that specifies input and output relationships thus fully defining a given function
Cache memory
Dependency notation
Design flow
Cascade
44. The unit of electrical current
Autotransformer
DRAM
DSP
Ampere
45. 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.
Band- stop filter
Ammeter
Balanced Bridge
Architecture
46. A two terminal circuit containing voltage sources - current sources - and resistors can be modeled as a voltage source in series with a resistor
Counter
Bus arbitration
Thevenin Equivalent Circuit
Decade
47. 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
Control Bus
Bode Plot
Data Sheet
Adjacency
48. A resettable protective device used for interrupting execessive current in an electric circuit
Collector
Base address
Circuit Breaker
Attenuation
49. A method for internally testing a PLD based on the JTAG standard (IEEE std.)
Cascade
Boundary scan
Bit time
ALU
50. A circuit with a complete current path
DAT
Thevenin Equivalent Circuit
Closed circuit
Bus contention