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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. An expression of variables and operators used to express the operation of a logic circuit
Branch
Boolean expression
Component
Charge- coupled device
2. A method for internally testing a PLD based on the JTAG standard (IEEE std.)
Bitstream
Duty cycle
Augend
Boundary scan
3. A stage of the DSP pipeline operation in which instructions are assigned to functional units and are decoded.
Decode
AHDL
Kirchoff's Voltage Law
Capacitance
4. An application program in development software packages that controls the design flow process and translates source code into object code in a format that can be logically tested or downloaded to a target device
Bode Plot
Analog- to- digital (A/D) conversion
Address
Compiler
5. Digital audio tape; a type of magnetic tape format
Counter
Boolean addition
Address
DAT
6. A semiconductor device that conducts current in only one direction
Capacitance Reactance
Demultiplexer
Diode
Augend
7. A complex programmable logic device that consists basically of muliple SPLD arrays with programmable interconnections.
Central processing unit
CPLD
Distributive Law
Clock
8. A digital circuit that compares the magnitudes of two quantiities and produces an output indicating the relationship of the quantities
Branch Current
Address
Complement
Comparator
9. Data Terminal equipment
DTE
Bit
Ammeter
Analog- to- digital converter(ADC)
10. A type of bistable multivibrator in which the output assumes the state of the D input on the triggering edge of a clock pulse.
Address Bus
Bus interface unit
D Flip-Flop
DIMM
11. A transformer in which the primary and secondary are in a single winding
Autotransformer
Bus contention
Attenuation
Carry generation
12. Having two values or states; describes a number system that has a base of two and utilizes 1 and 0 as its digits
Analog
Adjacency
Binary
Aliasing
13. A type of IC package whose leads must pass through holes to the other side of a PC board
Cascade
BJT
Dual in - line package
Access time
14. American wire gauge; a standardization based on wire diameter
AWG
DCE
DMA
Decade Counter
15. A unit of the cross - sectional area of a wire.
Circular Mil (CM)
Asynchronous counter
Diode
Counter
16. Sum of all currents entering a node is equal to the sum of all currents leaving the same node
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183
17. A resettable protective device used for interrupting execessive current in an electric circuit
DCE
Diode
Circuit Breaker
Ampere- hour(Ah) rating
18. Having two stable states. Flip- flops and latches are bistable multivibrators.
CLB (Configurable Logic Block)
Byte
Charge- coupled device
Bistable
19. The application of a dc voltage to an electronic device to produce a desired mode of operation
Address Bus
Choke
Bias
Component
20. 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.
Component
Dynamic Memory
Distributive Law
Aliasing
21. The mathematics of logic circuits
Duty cycle
Amplitude
Boolean algebra
ALU
22. An adverse condition that could occur if two or more devices try to communicate at the same time on a bus
Bus contention
Bode Plot
Combinational logic
Collector
23. 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
Atomic number
Amplitude
Collector
24. A class of integrated logic circuits that is implemented with a type of field effect transistor
Bit time
Ampere- hour(Ah) rating
CMOS Complementary Metal Oxide Semiconductor
Ammeter
25. A digital circuit capable of counting electronic events - such as pulses - by progressing through a sequence of binary states.
Counter
Carry
Decode
Bandwidth
26. The smallest particle of an element possessing the unique characteristics of that element.
Code
Atom
Apparent power
Alphanumeric
27. 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
Thevenin Equivalent Circuit
CLB (Configurable Logic Block)
Cross - assembler
Clock
28. 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.
Bipolar
Attenuation
Debug
Bus
29. The time from the application of a valid memory address to the appearance of valid output data
Admittance
Access time
BIOS
Branch Current
30. A circuit with a complete current path
CMOS Complementary Metal Oxide Semiconductor
Closed circuit
Combinational logic
Compiler
31. A basic logic operation in which a true(high) output occurs only when all the input conditions are true (high)
Battery
Ampere
Commutative Law
AND
32. The range of frequencies for which the current (or output voltage) is equal to or greater than 70.7% of its value at the resonant frequency that is considered to be passed by a filter.
Bus contention
Vx=(Vs * Rx) /RT
Thevenin Equivalent Circuit
Bandwidth
33. 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
Dependency notation
Address Bus
CLB (Configurable Logic Block)
Central processing unit
34. 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
ABEL(Advance Boolean Expression Language)
CMOS Complementary Metal Oxide Semiconductor
Diode
BJT
35. A set of interconnections that interface one or more devices based on a standardized specification
Carry generation
Bus
Circular Mil (CM)
ABEL(Advance Boolean Expression Language)
36. A combination of logic gates interconnected to produce a specified Boolean function with no storage or memory capability; sometimes called combinatorial logic
Combinational logic
Dual in - line package
Carry propagation
Bleeder Current
37. The action of a circuit in which it accepts current into its output from a load
Carry generation
Amplitude
Average value
Current sinking
38. A series of bits describing a final design that is sent to the target device during programming
Carry propagation
Amplitude
Bitstream
DCE
39. A condition where all the load currents are equal and the neutral current is zero
Admittance
Component
Balanced Load
Aliasing
40. A combined coder and decoder
Branch Current
Central processing unit
Code
Ampere
41. A circuit that prevents loading of an input or output
Boundary scan
Buffer
Bandwidth
BEDO DRAM
42. A code within DOS that allows various operations on files and includes a primitive assembler; to eliminate a problem in hardware or software.
Binary
Apparent power
Debug
Control Bus
43. Data Communications equipment
Decoder
Cross - assembler
DCE
Decade
44. The unit of electrical current
Ampere
Antifuse
Control Unit
Carry
45. An energy source that uses a chemical reaction to convert chemical energy into electrical energy.
Battery
Design flow
Amplitude
Autotransformer
46. Digital Signal Processor; a special type of microprocessor that processes data in real time
DSP
Ampere- hour(Ah) rating
D Flip-Flop
Dynamic Memory
47. In addition (Oring) and multiplication (ANDing) of three or more variables - the order in which the variables are grouped makes no difference
Associative law
DIMM
Branch
Atomic number
48. A connection at the midpoint of a winding in a transformer
Center Tap
AHDL
Acceptor
Buffer
49. A nominally continuous electrical signal that varies in amplitude or frequency in response to changes in sound - light - heat - position - or pressure.
Data bus
Ampere- hour(Ah) rating
Analog
Address Bus
50. A type of semiconductor memory that stores data in the form of charge packets and is serially accessed
Battery
Control Unit
Charge- coupled device
Central processing unit