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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. American wire gauge; a standardization based on wire diameter
Bitstream
Closed circuit
Address Bus
AWG
2. In a pulse waveform - the height or maximum value of the pulse as measured from its low level.
D Flip-Flop
Decoder
Amplitude
Dynamic Memory
3. 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.
ALU
Commutative Law
Circular Mil (CM)
Architecture
4. A set of interconnections that interface one or more devices based on a standardized specification
Bus
Debug
Carry generation
DTE
5. A filter that rejects a range of frequencies lying between two critical frequencies and passes frequencies above and below that range.
Cache memory
Vx=(Vs * Rx) /RT
Data Selector
Band- stop filter
6. A type of counter in which each stage is clocked from the output of the preceding stage.
Asynchronous counter
DCE
Apparent power
Charge- coupled device
7. The average of a sine wave over one half- cycle. It is 0.637 times the peak value.
Combinational logic
Average value
Center Tap
Capacitance
8. The main part of a computer responsible for control and processing of data; the core of a DSP that processes the program instructions
Central processing unit
Component
Current sinking
Boolean multiplication
9. A transformer in which the primary and secondary are in a single winding
TTL
Associative law
Kirchoff's Voltage Law
Autotransformer
10. Digital Signal Processor; a special type of microprocessor that processes data in real time
Analog- to- digital (A/D) conversion
Bias
DSP
AND array
11. In Boolean algebra - the OR operation
Component
Capacitance Reactance
Boolean addition
Ampere
12. A digital counter having ten states
Decade Counter
Component
Boolean multiplication
Apparent power
13. A combined coder and decoder
Ammeter
Code
Capacitance Reactance
Carry propagation
14. In addition (Oring) and multiplication (ANDing) of three or more variables - the order in which the variables are grouped makes no difference
Dual in - line package
Ammeter
Associative law
Boundary scan
15. Information in numeric - alphabetic - or other form.
Thevenin Equivalent Circuit
Decoder
Data
Norton's Theorem
16. The opposition of a capacitor to permit current; the reciprocal of capacitive reactance. The unit is the siemens.
Capacitance Reactance
Average value
Kirchoff's Voltage Law
Diode
17. The ability of a capacitor to store electrical charge.
TTL
Capacitance
Design flow
Distributive Law
18. The actual current in a branch
Associative law
Branch Current
Boolean algebra
Circular Mil (CM)
19. A type of inductor used to block or choke off high frequencies
Decade
Choke
DMA
Circuit Breaker
20. A digital circuit capable of counting electronic events - such as pulses - by progressing through a sequence of binary states.
Circuit Breaker
Addend
Counter
Address
21. A circuit (digital service) that switches digital data from one input line to several output lines in a specified time sequence
Bit
ANSI
Bit time
Demultiplexer
22. Describes a number system with a base of ten
Decimal
Demultiplexer
Ammeter
Compiler
23. 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
Bus contention
Band- pass filter
Address Bus
Ampere- hour(Ah) rating
24. An electrical device consisting of two conductive plates separated by an insulating material and possessing the property of capacitance.
Boundary scan
Charge- coupled device
Kirchoff's Voltage Law
Capacitor
25. An energy source that uses a chemical reaction to convert chemical energy into electrical energy.
Data
Dynamic Memory
Associative law
Battery
26. The interval of time occupied by a single bit in a sequence of bits; the period of the clock
Adder
Kirchoff's Current Law(KCL)
Bit time
Dynamic Memory
27. A digital code in which each of the decimal digits - 0 through 9 - is represented by a group of four bits
Binary coded decimal
Bus interface unit
Analog- to- digital (A/D) conversion
CPLD
28. A type of PLD nonvolatile programmable link that can be left open or can be shorted once as directed by the program
Atomic number
DSP
Antifuse
bed- of- nails
29. Dual in - line memory module
Admittance
Vx=(Vs * Rx) /RT
DIMM
Choke
30. A class of integrated logic circuits that is implemented with a type of field effect transistor
CMOS Complementary Metal Oxide Semiconductor
Cascade
AWG
Vx=(Vs * Rx) /RT
31. An electrical instrument used to measure current
Charge
Concurrency
Ammeter
Amplitude
32. Dynamic random- access memory; a type of semiconductor memory that uses capacitors as the storage elements and is a volatile - read/write memory
Astable
Closed circuit
DRAM
Baseline
33. Altera HDL; a nonstandard HDL
AHDL
Binary
Balanced Bridge
TTL
34. In Boolean algebra - the AND operation
Compiler
Boolean multiplication
Dynamic Memory
ALU
35. In addition - the number to which the addend is added
Boolean algebra
DAT
Augend
Bode Plot
36. 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
Adjacency
Boolean expression
ABEL(Advance Boolean Expression Language)
Byte
37. A device used to convert an analog signal to a sequence of digital codes
Baseline
Data Sheet
Attenuation
Analog- to- digital converter(ADC)
38. A type of bistable multivibrator in which the output assumes the state of the D input on the triggering edge of a clock pulse.
Boolean algebra
ANSI
Decrement
D Flip-Flop
39. 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.
Controller
Control Bus
Don't Care...
Charge
40. 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.
Bias
Average value
Aliasing
Band- stop filter
41. Having two opposites charge carriers within the transistor structure
Dynamic Memory
Boundary scan
Bus
Bipolar
42. 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
BJT
Current sinking
Comparator
Base address
43. The current left after the total load current is subtracted from the total current into the circuit
Duty cycle
Decimal
Bleeder Current
Demultiplexer
44. A resettable protective device used for interrupting execessive current in an electric circuit
Circuit Breaker
Analog- to- digital converter(ADC)
Atom
Charge- coupled device
45. The process that prevents two sources from using a bus at the same time
Bus arbitration
Closed circuit
Adjacency
DTE
46. A digital circuit that compares the magnitudes of two quantiities and produces an output indicating the relationship of the quantities
Cache memory
Comparator
Boolean addition
Boolean multiplication
47. A nominally continuous electrical signal that varies in amplitude or frequency in response to changes in sound - light - heat - position - or pressure.
Address Bus
Analog
Controller
Addend
48. A combination of logic gates interconnected to produce a specified Boolean function with no storage or memory capability; sometimes called combinatorial logic
Address Bus
Bandwidth
Base address
Combinational logic
49. The graph of a filter's frequency response showing the change in the output voltage to input voltage ratio expressed in dB as a function of frequency for a constant input voltage
Vx=(Vs * Rx) /RT
Data Sheet
Dependency notation
Bode Plot
50. The application of a dc voltage to an electronic device to produce a desired mode of operation
Closed circuit
Bias
Combinational logic
Vx=(Vs * Rx) /RT