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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. Data Terminal equipment
Bias
Decade Counter
Alphanumeric
DTE
2. A filter that passes a range of frequencies lying between two critical freqencies and rejects frequencies above and below that range.
DAT
Dependency notation
Component
Band- pass filter
3. Arithmetic Logic Unit; the key processing element of a microprocessor that perfoms arithmetic and logic operations.
ALU
Control Unit
Asynchronous counter
Amplitude
4. A measure of the ability of a reactive circuit to permit current; the reciprocal of impedance. the unit is the siemens
Carry generation
Admittance
bed- of- nails
Concurrency
5. The number of protons in a nucleus
Carry generation
Alphanumeric
ABEL(Advance Boolean Expression Language)
Atomic number
6. A type of bistable multivibrator in which the output assumes the state of the D input on the triggering edge of a clock pulse.
Adder
Bus arbitration
D Flip-Flop
Charge- coupled device
7. A combined coder and decoder
Boundary scan
Baseline
Code
Digital linear tape
8. 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.
Analog- to- digital converter(ADC)
Array
Address Bus
Admittance
9. An electrical instrument used to measure current
Bipolar
Base address
Amplitude
Ammeter
10. A series of bits describing a final design that is sent to the target device during programming
Clear
Band- pass filter
Autotransformer
Bitstream
11. The law that states ORing several variables and then ANDing the single variable with each of the several variables and the ORing the product
bed- of- nails
Distributive Law
Astable
Attenuation
12. Digital audio tape; a type of magnetic tape format
Bandwidth
Demultiplexer
DAT
Component
13. In Boolean algebra - the AND operation
Byte
Boolean multiplication
Complement
Average value
14. Information in numeric - alphabetic - or other form.
Data
BJT
DCE
Bipolar
15. A digital circuit device that converts coded information into another (familiar) or noncoded form
Bus interface unit
bed- of- nails
Decoder
CMOS
16. A digital counter having ten states
Decode
Decade Counter
DCE
Choke
17. 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.
Data
Adder
Data Selector
Charge- coupled device
18. The current left after the total load current is subtracted from the total current into the circuit
Bus contention
Assembler
Bleeder Current
CPLD
19. The mathematics of logic circuits
Boolean algebra
DRAM
Assembly language
TTL
20. 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.
Astable
D Flip-Flop
Architecture
Circuit
21. A combination of input literals that cannot occur and can be used as a 1 or 0 on a Karnaugh Map for simplification
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22. 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.
Band- pass filter
Boolean multiplication
Carry generation
Aliasing
23. Sum of all currents entering a node is equal to the sum of all currents leaving the same node
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24. 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
Decade Counter
Bleeder Current
Bit time
Bode Plot
25. The normal level of a pulse waveform; the voltage level in the absence of a pulse.
Baseline
Apparent power
Distributive Law
CLB (Configurable Logic Block)
26. Describes a number system with a base of ten
Decimal
Capacitance
Choke
Demultiplexer
27. The unit of electrical current
Duty cycle
Circular Mil (CM)
Amplitude
Ampere
28. A relatively small - high- speed memory that stores the most recently used instructions or data from the larger but slower main memory
Kirchoff's Current Law(KCL)
Clock
Circuit
Cache memory
29. A binary digit - which can be either 1 or 0
Bit
Branch
Data
Adder
30. A condition where all the load currents are equal and the neutral current is zero
Balanced Load
Decoder
Binary
DRAM
31. The application of a dc voltage to an electronic device to produce a desired mode of operation
Control Bus
Address Bus
Bias
Dual in - line package
32. The maximum value of a voltage or current
BIOS
Amplitude
Atom
Cascade
33. American National Standards Institute
Circuit Breaker
ANSI
Don't Care...
Kirchoff's Current Law(KCL)
34. 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.
Decoder
Attenuation
Duty cycle
Choke
35. A unit of the cross - sectional area of a wire.
Attenuation
AND gate
Circular Mil (CM)
Data Sheet
36. 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
Architecture
Don't Care...
Byte
37. A logic gate that produces a High output only when all of the inputs are HIGH
Assembly language
Admittance
AND gate
Dividend
38. A circuit that prevents loading of an input or output
Address
Combinational logic
Buffer
Ammeter
39. A digital circuit capable of counting electronic events - such as pulses - by progressing through a sequence of binary states.
DAT
Counter
Circuit Breaker
Don't Care...
40. Digital Signal Processor; a special type of microprocessor that processes data in real time
Digital linear tape
DMA
Boolean multiplication
DSP
41. 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.
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42. A one- way group of conductors from the to a memory - or other external device - on which the address code is sent
Bipolar
Address Bus
CLB (Configurable Logic Block)
Control Bus
43. The ratio of pulse width to period expressed as a percentage
Bit
Duty cycle
Demultiplexer
Apparent power
44. The opposition of a capacitor to permit current; the reciprocal of capacitive reactance. The unit is the siemens.
bed- of- nails
Capacitance Reactance
DAT
CLB (Configurable Logic Block)
45. A programming language that uses English like words and has a one- to- one correspondence to machine language
Bit time
Buffer
Assembly language
AWG
46. The beginning address of a segment of memory
Closed circuit
Center Tap
Average value
Base address
47. 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
Cascade
Data bus
Boundary scan
ABEL(Advance Boolean Expression Language)
48. Having two directions. the stored data can be shifted right or left
Data
Thevenin Equivalent Circuit
Cascade
Bidirectional shift Register
49. One of the three regions in a bipolar junction transistor
bed- of- nails
Average value
Base
Alphanumeric
50. An expression of variables and operators used to express the operation of a logic circuit
Boolean expression
Design flow
Bistable
Cross - assembler