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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. Having two stable states. Flip- flops and latches are bistable multivibrators.
Bistable
Current sinking
Complement
Dual in - line package
2. A digital counter having ten states
Charge- coupled device
Access time
Decade Counter
AND array
3. 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
Atomic number
BJT
D Flip-Flop
Code
4. In Boolean algebra - the OR operation
Architecture
AHDL
Address Bus
Boolean addition
5. A transformer in which the primary and secondary are in a single winding
Comparator
Augend
Autotransformer
CMOS Complementary Metal Oxide Semiconductor
6. In Boolean algebra - the AND operation
Boolean multiplication
Compiler
Angular Velocity
Architecture
7. A circuit that prevents loading of an input or output
Buffer
Bus contention
Don't Care...
AND gate
8. In addition (Oring) and multiplication (ANDing) of three or more variables - the order in which the variables are grouped makes no difference
Circuit
Current sinking
Associative law
Address
9. 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.
Boolean algebra
Asynchronous counter
Aliasing
Data
10. A binary digit - which can be either 1 or 0
Bit
Binary
Balanced Load
Capacitance
11. The opposition of a capacitor to permit current; the reciprocal of capacitive reactance. The unit is the siemens.
Capacitance Reactance
Boolean algebra
Ampere- hour(Ah) rating
AND
12. A relatively small - high- speed memory that stores the most recently used instructions or data from the larger but slower main memory
Center Tap
Capacitor
Cache memory
Dynamic Memory
13. A circuit with a complete current path
Closed circuit
DAT
AND gate
Demultiplexer
14. Digital audio tape; a type of magnetic tape format
DAT
Average value
Decimal
Comparator
15. A method of analog- to- digital conversion using a 1- bit quantization process
Delta Modulation
Assembly language
bed- of- nails
Array
16. The beginning address of a segment of memory
Angular Velocity
Ampere- hour(Ah) rating
Buffer
Base address
17. The mathematics of logic circuits
Decade Counter
Boolean algebra
Charge- coupled device
Carry propagation
18. A connection at the midpoint of a winding in a transformer
TTL
AND gate
Atom
Center Tap
19. A class of integrated logic circuits that is implemented with a type of field effect transistor
CMOS Complementary Metal Oxide Semiconductor
Demultiplexer
Bit time
ANSI
20. Arithmetic Logic Unit; the key processing element of a microprocessor that perfoms arithmetic and logic operations.
Baseline
Asynchronous counter
Battery
ALU
21. A type of IC package whose leads must pass through holes to the other side of a PC board
Compiler
Decrement
Dual in - line package
Decade
22. 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.
Bit
Complement
Carry
Attenuation
23. A condition where all the load currents are equal and the neutral current is zero
Complement
Compiler
Collector
Balanced Load
24. In addition (ORing) and multiplication (ANDing) of two variables the order in which the variables are ORed or ANDed makes no difference
Delta Modulation
DTE
Control Unit
Commutative Law
25. 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
Bit time
Adjacency
CMOS
AWG
26. A unit of the cross - sectional area of a wire.
Clear
Circular Mil (CM)
CMOS
Design flow
27. A receiving device on a bus
ABEL(Advance Boolean Expression Language)
Acceptor
CLB (Configurable Logic Block)
Circular Mil (CM)
28. A bridge circuit that is in the balanced state as indicated by 0 V across the output.
Balanced Bridge
Ampere- hour(Ah) rating
Code
Duty cycle
29. The smallest particle of an element possessing the unique characteristics of that element.
Atom
DAT
Don't Care...
Decrement
30. 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
Complement
Collector
ALU
Cascade
31. The total number of data units(bits - nibbles - bytes - words) that a memory can store.
Battery
Capacity
Ampere
Address
32. A filter that passes a range of frequencies lying between two critical freqencies and rejects frequencies above and below that range.
Band- pass filter
DCE
Controller
Dependency notation
33. In addition - the number that is added to another number called the augend
Cross - assembler
Design flow
Addend
Clear
34. To decrease the binary state of a counter by one
Decrement
Decade
Commutative Law
Bitstream
35. A resettable protective device used for interrupting execessive current in an electric circuit
Debug
Circuit Breaker
Delta Modulation
Code
36. A programming language that uses English like words and has a one- to- one correspondence to machine language
Assembly language
CMOS Complementary Metal Oxide Semiconductor
Data
Analog- to- digital (A/D) conversion
37. The application of a dc voltage to an electronic device to produce a desired mode of operation
Bus contention
CMOS Complementary Metal Oxide Semiconductor
Analog- to- digital (A/D) conversion
Bias
38. One of the three regions in a bipolar Junction transistor(North junction of NpN)
Collector
ASCII
Bidirectional shift Register
Apparent power
39. An electrical device consisting of two conductive plates separated by an insulating material and possessing the property of capacitance.
Debug
Capacitor
Decoder
Carry
40. The actual current in a branch
Battery
Design flow
Branch Current
DCE
41. A document that specifies parameter values and operating conditions for an integrated circuits or other device
Data Sheet
CMOS
Don't Care...
Bipolar
42. The current left after the total load current is subtracted from the total current into the circuit
Data Sheet
Bidirectional shift Register
CMOS Complementary Metal Oxide Semiconductor
Bleeder Current
43. A one- way group of conductors from the to a memory - or other external device - on which the address code is sent
CLB (Configurable Logic Block)
Assembly language
Address Bus
Vx=(Vs * Rx) /RT
44. An adverse condition that could occur if two or more devices try to communicate at the same time on a bus
Bus contention
Augend
BEDO DRAM
Adjacency
45. A combined coder and decoder
Code
Addend
CMOS
Array
46. A combination of input literals that cannot occur and can be used as a 1 or 0 on a Karnaugh Map for simplification
47. Burst extended data output dynamic random- access memory
BEDO DRAM
Bitstream
Data Sheet
Charge- coupled device
48. An energy source that uses a chemical reaction to convert chemical energy into electrical energy.
Battery
Closed circuit
Control Bus
Concurrency
49. Describes a number system with a base of ten
Component
DRAM
Average value
Decimal
50. 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.
Architecture
CMOS
Analog- to- digital converter(ADC)
DAT