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Test your basic knowledge |
Digital Fundamentals
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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. The normal level of a pulse waveform; the voltage level in the absence of a pulse.
Combinational logic
CLB (Configurable Logic Block)
Baseline
Decrement
2. Information in numeric - alphabetic - or other form.
Norton's Theorem
Data
Carry propagation
Autotransformer
3. 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.
Boolean multiplication
DRAM
Attenuation
CPLD
4. A group of eight bits
Current sinking
Asynchronous counter
Carry
Byte
5. A one- way group of conductors from the to a memory - or other external device - on which the address code is sent
Boolean addition
Circuit Breaker
Address Bus
AND
6. The current left after the total load current is subtracted from the total current into the circuit
BJT
Charge- coupled device
Bleeder Current
Data Selector
7. An array of AND gates consisting of a matrix of programmable interconnection
AND array
Decimal
Charge
Delta Modulation
8. Sum of all currents entering a node is equal to the sum of all currents leaving the same node
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9. The actual current in a branch
Bias
Thevenin Equivalent Circuit
Branch Current
Bitstream
10. 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
Analog
BJT
CMOS
Adder
11. 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
Bleeder Current
Carry propagation
Baseline
Capacitor
12. The phasor combination of resistive power (true power) and reactive power. The unit is the volt- amperes (VA).
Address
Base address
Apparent power
Central processing unit
13. 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
Autotransformer
Alphanumeric
bed- of- nails
ALU
14. A program that translates an assembly language program for one type of microprocessor to an assembly language for another type of microprocessor
Clock
Duty cycle
Cross - assembler
Don't Care...
15. 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.
Acceptor
Bandwidth
CLB (Configurable Logic Block)
Bus interface unit
16. In a division operation the quantity that is being divided
Control Unit
Bleeder Current
Dividend
Decode
17. Dynamic random- access memory; a type of semiconductor memory that uses capacitors as the storage elements and is a volatile - read/write memory
BIOS
DRAM
Circuit
Choke
18. 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
Address Bus
Adjacency
Band- stop filter
Demultiplexer
19. The process that prevents two sources from using a bus at the same time
Attenuation
Circuit
Boolean algebra
Bus arbitration
20. 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.
Cross - assembler
Asynchronous counter
Architecture
Boolean addition
21. A electrical property of matter that exist because of an excess or a deficiency of electrons. Can be either positive or negative
Charge
Decrement
Collector
Augend
22. A measure of the ability of a reactive circuit to permit current; the reciprocal of impedance. the unit is the siemens
Bit
Band- pass filter
Antifuse
Admittance
23. To decrease the binary state of a counter by one
Decrement
Adder
Dual in - line package
Closed circuit
24. A two terminal circuit containing voltage sources - current sources - and resistors can be modeled as a voltage source in series with a resistor
Boolean expression
Alphanumeric
Thevenin Equivalent Circuit
Decoder
25. The portion of the CPU that interfaces with the system buses and fetches instructions - reads operands - and writes results.
Autotransformer
DIMM
Bus interface unit
Data Selector
26. In relation to VHDL feature that permits operations to be processed in a parallel;that is operations that occur simultaneously
Concurrency
Battery
Combinational logic
Cache memory
27. A software compiler language for SPLD programming; a type of hardware description language (HDL)
Bipolar
CPLD
ABEL(Advance Boolean Expression Language)
Cross - assembler
28. A method for internally testing a PLD based on the JTAG standard (IEEE std.)
Bistable
Bus
BEDO DRAM
Boundary scan
29. 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.
DIMM
Control Unit
Choke
Aliasing
30. The number of protons in a nucleus
Central processing unit
Circular Mil (CM)
Binary coded decimal
Atomic number
31. The process of producing an output carry in full- adder when both input bits are 1s.
Delta Modulation
Amplitude
Carry generation
Carry
32. A combined coder and decoder
Code
Concurrency
Capacity
Bus arbitration
33. A stage of the DSP pipeline operation in which instructions are assigned to functional units and are decoded.
Decode
Boolean algebra
Capacitance Reactance
Bidirectional shift Register
34. The rotational rate of a phasor which is related to the frequency of the sine wave that the phasor represents
Circuit
AHDL
Angular Velocity
Diode
35. 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.
Dependency notation
Data Selector
Base address
Kirchoff's Voltage Law
36. American National Standards Institute
ANSI
Dependency notation
Charge
Control Unit
37. A type of IC package whose leads must pass through holes to the other side of a PC board
Address
Charge- coupled device
Dual in - line package
Decoder
38. A digital counter having ten states
Capacitance Reactance
Decade Counter
Band- pass filter
Balanced Bridge
39. In addition (Oring) and multiplication (ANDing) of three or more variables - the order in which the variables are grouped makes no difference
Base address
CMOS
Associative law
Autotransformer
40. Sum of all the voltage drops in series equals to the source voltage
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41. A document that specifies parameter values and operating conditions for an integrated circuits or other device
Distributive Law
Data Sheet
Acceptor
AHDL
42. An asynchronous input used to reset a flip- flop (make the Q output 0); to place a register or counter in the state in which it contains all 0's
Clear
Assembler
Acceptor
AND
43. A semiconductor device that conducts current in only one direction
Diode
Bandwidth
Amplitude
Bistable
44. A condition where all the load currents are equal and the neutral current is zero
Bitstream
Balanced Load
Control Bus
Angular Velocity
45. Basic input/output system; a set of programs in ROM that interfaces the I/) devices in a computer system
BIOS
Bias
ALU
AHDL
46. Transistor-Transistor Logic and is implemented with bipolar junction transistors
Norton's Theorem
TTL
Analog
Delta Modulation
47. A programming language that uses English like words and has a one- to- one correspondence to machine language
Decoder
Acceptor
Assembly language
TTL
48. 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
Compiler
Address Bus
ASCII
Balanced Bridge
49. A type of semiconductor memory that stores data in the form of charge packets and is serially accessed
Bit time
Dependency notation
Charge- coupled device
Boolean algebra
50. In a pulse waveform - the height or maximum value of the pulse as measured from its low level.
Demultiplexer
Amplitude
Decode
Kirchoff's Current Law(KCL)
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