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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
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.
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 resettable protective device used for interrupting execessive current in an electric circuit
Angular Velocity
Circuit Breaker
Diode
Bit
2. In Boolean algebra - the AND operation
Binary coded decimal
DRAM
Boolean multiplication
Astable
3. Dynamic random- access memory; a type of semiconductor memory that uses capacitors as the storage elements and is a volatile - read/write memory
DRAM
Alphanumeric
Bit
Battery
4. In addition (ORing) and multiplication (ANDing) of two variables the order in which the variables are ORed or ANDed makes no difference
Commutative Law
Cascade
CLB (Configurable Logic Block)
Buffer
5. A two terminal circuit containing voltage sources - current sources - and resistors can be modeled as a voltage source in series with a resistor
Distributive Law
Choke
Thevenin Equivalent Circuit
Charge- coupled device
6. The portion of the CPU that interfaces with the system buses and fetches instructions - reads operands - and writes results.
Closed circuit
Band- pass filter
Bistable
Bus interface unit
7. 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.
Acceptor
Closed circuit
Don't Care...
Array
8. A type of PLD nonvolatile programmable link that can be left open or can be shorted once as directed by the program
DAT
AND gate
Kirchoff's Voltage Law
Antifuse
9. Information in numeric - alphabetic - or other form.
Counter
Decode
Data
Autotransformer
10. A one- way group of conductors from the to a memory - or other external device - on which the address code is sent
Combinational logic
Ampere- hour(Ah) rating
BIOS
Address Bus
11. Dual in - line memory module
AHDL
DIMM
Bistable
Boolean expression
12. One of the three regions in a bipolar junction transistor
Admittance
Comparator
Base
Bleeder Current
13. 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
Angular Velocity
DSP
Decade
Control Bus
14. 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.
Bistable
Data bus
Bandwidth
Center Tap
15. A combination of logic gates interconnected to produce a specified Boolean function with no storage or memory capability; sometimes called combinatorial logic
Combinational logic
Collector
Average value
Thevenin Equivalent Circuit
16. In Boolean algebra - the OR operation
Bus
Closed circuit
Boolean addition
Address
17. The unit of electrical current
Carry propagation
Boolean algebra
Analog
Ampere
18. Transistor-Transistor Logic and is implemented with bipolar junction transistors
Astable
TTL
Ammeter
Decode
19. Consisting of numerals - letters - and other characters
ANSI
Band- pass filter
Analog- to- digital converter(ADC)
Alphanumeric
20. To connect 'end- to- end' as when several counters are connected from the terminal count output of one counter to the enable input of the next counter
Charge
Cascade
Amplitude
Diode
21. An adverse condition that could occur if two or more devices try to communicate at the same time on a bus
Bias
Bandwidth
Bitstream
Bus contention
22. One of the three regions in a bipolar Junction transistor(North junction of NpN)
Collector
Distributive Law
Analog
bed- of- nails
23. Having two stable states. Flip- flops and latches are bistable multivibrators.
Alphanumeric
AHDL
Bistable
Bus
24. In addition - the number that is added to another number called the augend
Base
Decade Counter
CMOS Complementary Metal Oxide Semiconductor
Addend
25. 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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26. The main part of a computer responsible for control and processing of data; the core of a DSP that processes the program instructions
Kirchoff's Voltage Law
Central processing unit
Address Bus
Augend
27. The law that states ORing several variables and then ANDing the single variable with each of the several variables and the ORing the product
Design flow
Distributive Law
Binary
Buffer
28. One current path in a parallel circuit; a current path that connects two nodes
Branch
Addend
Atomic number
Carry generation
29. A combined coder and decoder
Decrement
Demultiplexer
Code
Vx=(Vs * Rx) /RT
30. A notational system for logic symbols that specifies input and output relationships thus fully defining a given function
Adjacency
DAT
Dependency notation
CLB (Configurable Logic Block)
31. A type of IC package whose leads must pass through holes to the other side of a PC board
Dual in - line package
Balanced Bridge
Battery
Control Bus
32. A stage of the DSP pipeline operation in which instructions are assigned to functional units and are decoded.
Bit
Decode
Augend
Amplitude
33. A logic circuit used to add two binary numbers
Adder
Base address
Adjacency
Bode Plot
34. The opposition of a capacitor to permit current; the reciprocal of capacitive reactance. The unit is the siemens.
Capacitance Reactance
Address
Collector
Cascade
35. Having two opposites charge carriers within the transistor structure
Circuit
Data Selector
Debug
Bipolar
36. 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.
Atom
Carry propagation
Circuit
Data
37. An electrical instrument used to measure current
DRAM
Ampere- hour(Ah) rating
Boolean addition
Ammeter
38. The process that prevents two sources from using a bus at the same time
Bandwidth
Bus arbitration
AHDL
Balanced Bridge
39. The phasor combination of resistive power (true power) and reactive power. The unit is the volt- amperes (VA).
Central processing unit
Circuit
Bode Plot
Apparent power
40. Sum of all currents entering a node is equal to the sum of all currents leaving the same node
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41. Digital audio tape; a type of magnetic tape format
Address Bus
DAT
BIOS
Decoder
42. The interval of time occupied by a single bit in a sequence of bits; the period of the clock
Bit time
Compiler
Assembler
Kirchoff's Voltage Law
43. The normal level of a pulse waveform; the voltage level in the absence of a pulse.
Carry
D Flip-Flop
Baseline
Data Sheet
44. Sum of all the voltage drops in series equals to the source voltage
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45. The total number of data units(bits - nibbles - bytes - words) that a memory can store.
Capacity
Architecture
Decoder
Collector
46. The rotational rate of a phasor which is related to the frequency of the sine wave that the phasor represents
Angular Velocity
Band- stop filter
Branch
Amplitude
47. 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
Carry propagation
Architecture
ABEL(Advance Boolean Expression Language)
Adder
48. 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
Boolean addition
Bus interface unit
Bistable
Clear
49. In a division operation the quantity that is being divided
Norton's Theorem
Attenuation
Boolean expression
Dividend
50. 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.
Data Selector
Architecture
Delta Modulation
D Flip-Flop
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