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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 logic gate that produces a High output only when all of the inputs are HIGH
Binary
AND gate
Bus interface unit
Band- pass filter
2. The number of protons in a nucleus
Byte
Atomic number
Decrement
AND
3. Having no stable state. An astable multivibrator oscillates between two quasi- stable states.
Ampere- hour(Ah) rating
Bidirectional shift Register
Astable
Demultiplexer
4. 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
Band- stop filter
Ampere- hour(Ah) rating
CMOS Complementary Metal Oxide Semiconductor
5. A connection at the midpoint of a winding in a transformer
Center Tap
AND array
Collector
Decade
6. 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
Ammeter
Compiler
Vx=(Vs * Rx) /RT
Base address
7. Data Communications equipment
Address Bus
DCE
Decoder
Asynchronous counter
8. A filter that passes a range of frequencies lying between two critical freqencies and rejects frequencies above and below that range.
Debug
Band- pass filter
Closed circuit
Band- stop filter
9. 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
Base address
CLB (Configurable Logic Block)
Bode Plot
Control Bus
10. The normal level of a pulse waveform; the voltage level in the absence of a pulse.
Cross - assembler
Baseline
Base address
Clear
11. Having two directions. the stored data can be shifted right or left
Choke
bed- of- nails
Circular Mil (CM)
Bidirectional shift Register
12. Having two opposites charge carriers within the transistor structure
Bipolar
Charge
Controller
Access time
13. A semiconductor device that conducts current in only one direction
Demultiplexer
Bit
Diode
Comparator
14. A type of counter in which each stage is clocked from the output of the preceding stage.
Dual in - line package
Asynchronous counter
Control Unit
Capacitor
15. The ratio of pulse width to period expressed as a percentage
Duty cycle
Bitstream
Autotransformer
Carry propagation
16. An expression of variables and operators used to express the operation of a logic circuit
CMOS Complementary Metal Oxide Semiconductor
Boolean expression
Atom
Norton's Theorem
17. 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
Binary
Adjacency
Don't Care...
Cross - assembler
18. 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
bed- of- nails
Antifuse
Attenuation
Boolean addition
19. 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 bus
Cache memory
Clock
Data Selector
20. The digit generated when the sum of two binary digits exceeds 1
Acceptor
Carry generation
Carry
Bias
21. American Standard Code for Information Interchange; the most widely used alphanumeric code.
Boundary scan
Distributive Law
Boolean expression
ASCII
22. One of the three regions in a bipolar Junction transistor(North junction of NpN)
Bode Plot
Collector
Decode
AND array
23. 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
Concurrency
Carry propagation
Data
Balanced Bridge
24. The location of a given storage cell or group of cells in a memory; a unique memory location containing on byte
Address
DCE
Diode
DAT
25. The average of a sine wave over one half- cycle. It is 0.637 times the peak value.
Decode
Bias
Component
Average value
26. The action of a circuit in which it accepts current into its output from a load
Cascade
Current sinking
Acceptor
Combinational logic
27. The smallest particle of an element possessing the unique characteristics of that element.
Associative law
Autotransformer
Atom
Bleeder Current
28. The inverse of opposite of a number - in Boolean algebra - the inverse function - expressed with a bar over the variable. The complement of a 1 is a 0 - and vice versa
Cache memory
Decode
Complement
DRAM
29. 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
DMA
Decimal
Base
30. The process of converting an analog signal to digital form
Capacitance
Circuit
Analog- to- digital (A/D) conversion
Charge
31. 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
Branch Current
Kirchoff's Voltage Law
BJT
Atom
32. The current left after the total load current is subtracted from the total current into the circuit
Circular Mil (CM)
AND array
Access time
Bleeder Current
33. Dynamic random- access memory; a type of semiconductor memory that uses capacitors as the storage elements and is a volatile - read/write memory
Compiler
AND
DIMM
DRAM
34. An electrical device consisting of two conductive plates separated by an insulating material and possessing the property of capacitance.
TTL
Dual in - line package
Boolean algebra
Capacitor
35. In addition - the number to which the addend is added
Ampere- hour(Ah) rating
Data bus
D Flip-Flop
Augend
36. A digital circuit device that converts coded information into another (familiar) or noncoded form
Decoder
Binary
Don't Care...
Alphanumeric
37. A transformer in which the primary and secondary are in a single winding
Choke
Comparator
Autotransformer
Aliasing
38. In addition - the number that is added to another number called the augend
Addend
BEDO DRAM
Angular Velocity
Decade
39. The phasor combination of resistive power (true power) and reactive power. The unit is the volt- amperes (VA).
Clear
Apparent power
AWG
BIOS
40. An energy source that uses a chemical reaction to convert chemical energy into electrical energy.
Battery
Boolean multiplication
CMOS
Choke
41. A two terminal circuit containing voltage sources - current sources - and resistors can be modeled as a voltage source in series with a resistor
Thevenin Equivalent Circuit
Charge
Boolean expression
Band- pass filter
42. A series of bits describing a final design that is sent to the target device during programming
Center Tap
Data Sheet
Bitstream
Boundary scan
43. A type of semiconductor memory that stores data in the form of charge packets and is serially accessed
Charge- coupled device
Controller
Current sinking
Circuit Breaker
44. A notational system for logic symbols that specifies input and output relationships thus fully defining a given function
Augend
CMOS
Balanced Load
Dependency notation
45. A program that translates an assembly language program for one type of microprocessor to an assembly language for another type of microprocessor
Cross - assembler
Vx=(Vs * Rx) /RT
Concurrency
Combinational logic
46. One current path in a parallel circuit; a current path that connects two nodes
Branch
Compiler
Ammeter
Charge- coupled device
47. 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.
Addend
Adder
Decade Counter
Aliasing
48. In Boolean algebra - the OR operation
Acceptor
Boolean addition
ANSI
DTE
49. 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
Closed circuit
Clock
Decode
Bus contention
50. The opposition of a capacitor to permit current; the reciprocal of capacitive reactance. The unit is the siemens.
Capacitance Reactance
Addend
Access time
Data bus