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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. The unit of electrical current
Ampere
Bleeder Current
Charge
bed- of- nails
2. The current left after the total load current is subtracted from the total current into the circuit
ALU
DRAM
Kirchoff's Voltage Law
Bleeder Current
3. The digit generated when the sum of two binary digits exceeds 1
Carry
Diode
Adjacency
BJT
4. The normal level of a pulse waveform; the voltage level in the absence of a pulse.
Bias
Base address
DSP
Baseline
5. 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
Comparator
Bitstream
Carry propagation
6. A digital code in which each of the decimal digits - 0 through 9 - is represented by a group of four bits
Kirchoff's Voltage Law
Analog
Capacitance Reactance
Binary coded decimal
7. An arrangement of electrical and/or electronic components interconnected in such a way as to perform a specified function
Base
Autotransformer
CMOS
Circuit
8. Digital Signal Processor; a special type of microprocessor that processes data in real time
Adjacency
DSP
Bandwidth
Ammeter
9. A measure of the ability of a reactive circuit to permit current; the reciprocal of impedance. the unit is the siemens
Admittance
Code
Acceptor
Bidirectional shift Register
10. Dynamic random- access memory; a type of semiconductor memory that uses capacitors as the storage elements and is a volatile - read/write memory
DRAM
Cross - assembler
Thevenin Equivalent Circuit
TTL
11. Data Terminal equipment
DTE
Boolean expression
Combinational logic
Norton's Theorem
12. 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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13. In Boolean algebra - the AND operation
Bleeder Current
DAT
Boolean multiplication
Charge- coupled device
14. 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
Adder
Clock
Decade Counter
AND array
15. 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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16. 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
Atomic number
Associative law
Control Bus
AHDL
17. An adverse condition that could occur if two or more devices try to communicate at the same time on a bus
Architecture
AND
Bus contention
Access time
18. In addition - the number that is added to another number called the augend
Address
Byte
Addend
Binary coded decimal
19. A digital counter having ten states
Decade Counter
Apparent power
Access time
Don't Care...
20. A type of semiconductor memory having capacitive storage cells that lose stored data over a period of time and therefore must be refreshed.
Boolean expression
Dynamic Memory
Commutative Law
Control Bus
21. A group of eight bits
Binary coded decimal
Base address
Byte
Code
22. A type of bistable multivibrator in which the output assumes the state of the D input on the triggering edge of a clock pulse.
D Flip-Flop
Bit time
Addend
DAT
23. To decrease the binary state of a counter by one
DIMM
Decrement
ABEL(Advance Boolean Expression Language)
Bandwidth
24. The process that prevents two sources from using a bus at the same time
Cache memory
Analog- to- digital converter(ADC)
Bus arbitration
Carry propagation
25. A semiconductor device that conducts current in only one direction
AHDL
Circuit
Angular Velocity
Diode
26. 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
DMA
Carry propagation
Counter
Distributive Law
27. The mathematics of logic circuits
Bias
Boolean algebra
Kirchoff's Voltage Law
Distributive Law
28. A transformer in which the primary and secondary are in a single winding
AHDL
Carry propagation
Distributive Law
Autotransformer
29. A filter that rejects a range of frequencies lying between two critical frequencies and passes frequencies above and below that range.
Bipolar
Circular Mil (CM)
Band- stop filter
Decoder
30. A complex programmable logic device that consists basically of muliple SPLD arrays with programmable interconnections.
Collector
DMA
Attenuation
CPLD
31. A electrical property of matter that exist because of an excess or a deficiency of electrons. Can be either positive or negative
Capacitance Reactance
Charge
AWG
Branch Current
32. A type of semiconductor memory that stores data in the form of charge packets and is serially accessed
Charge- coupled device
Atomic number
Attenuation
Ampere- hour(Ah) rating
33. The ratio of pulse width to period expressed as a percentage
AHDL
Bus contention
Duty cycle
Carry
34. A programming language that uses English like words and has a one- to- one correspondence to machine language
Dual in - line package
Assembly language
Current sinking
Binary
35. The location of a given storage cell or group of cells in a memory; a unique memory location containing on byte
Array
Attenuation
Bit time
Address
36. Digital audio tape; a type of magnetic tape format
DAT
Dependency notation
Code
Data Selector
37. 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
ANSI
Battery
Analog
38. A basic logic operation in which a true(high) output occurs only when all the input conditions are true (high)
Byte
Collector
AND
BJT
39. American National Standards Institute
Bias
ANSI
Adder
Bus interface unit
40. A type of inductor used to block or choke off high frequencies
Component
Boundary scan
Byte
Choke
41. 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.
Byte
Architecture
Clear
Aliasing
42. A document that specifies parameter values and operating conditions for an integrated circuits or other device
Data Sheet
Decade Counter
Branch
Center Tap
43. In addition (ORing) and multiplication (ANDing) of two variables the order in which the variables are ORed or ANDed makes no difference
Commutative Law
Cache memory
Amplitude
Boundary scan
44. A stage of the DSP pipeline operation in which instructions are assigned to functional units and are decoded.
Data Sheet
Adder
Band- pass filter
Decode
45. 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
Debug
Complement
Circuit
Access time
46. Sum of all currents entering a node is equal to the sum of all currents leaving the same node
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47. In a division operation the quantity that is being divided
Dividend
bed- of- nails
Distributive Law
CMOS
48. Having no stable state. An astable multivibrator oscillates between two quasi- stable states.
Bus interface unit
Concurrency
Astable
AND gate
49. The phasor combination of resistive power (true power) and reactive power. The unit is the volt- amperes (VA).
Architecture
Dividend
Charge
Apparent power
50. An electrical device consisting of two conductive plates separated by an insulating material and possessing the property of capacitance.
Capacitor
ALU
AWG
Debug