With each visit of this Digital Electronics online Quiz / Practice Test, the list of MCQs / Objective Questions presented will be different, offering you a diverse set of practice opportunities. This variability encourages you to practice extensively, refining the accuracy of your answers and your overall grasp of the content. By utilizing this resource, you can hone your skills and become more adept at managing time constraints during actual exams.
Test Instructions Question type Randomized MCQs.Changes every time you visit the test Total Number of Questions 30 Time Limit 20 Minutes Points 1 Point for each Question
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Question 1 of 30
Q-1.Symbol: F = A.B, where ‘.’ implies ________________ operation.
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Question 2 of 30
Q-2.The switching function f(A,B,C,D)= ∑(5,9,11,14) can be written as equal to
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Question 3 of 30
Q-3.In this logic, output depends not only on the current inputs but also on the past
input values. It needs some type of memory to remember the past input values
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Question 4 of 30
Q-4.A ________________ command signal is applied to the write-control input
terminal
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Question 5 of 30
Q-5.Which is a 8 bit Microprocessor __________
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Question 6 of 30
Q-6.Why the decimal number system is also called as positional number system?
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Question 7 of 30
Q-7.In a DAC, the possible number of digital input is __________.
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Question 8 of 30
Q-8.The 2’s complement of 10002 is
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Question 9 of 30
Q-9.An stable time base generator is also known as
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Question 10 of 30
Q-10.The O/P of Half adder is in the form of.
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Question 11 of 30
Q-11.For getting an output from an XNOR gate, its both inputs must be
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Question 12 of 30
Q-12.In which of the following types of counters, the flip-flops do not change states
at exactly the same time?
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Question 13 of 30
Q-13.In ________________ circuit, the output depends on both the present and the
past inputs.
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Question 14 of 30
Q-14.The main disadvantage of a dual slope integrator A/D converter is its
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Question 15 of 30
Q-15.In a five bit binary ladder D/A converter ,if the value of R is 1Kohm,2R is 2Kohm and voltage levels are 0=0V and 1=+6V, then the current ,which each digital input voltage source can supply is
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Question 16 of 30
Q-16.________________ organization is essentially an array of selectively open
and closed unidirectional contacts.
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Question 17 of 30
Q-17.In straight binary code, N-bits or N binary digits can represent ______________
different values.
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Question 18 of 30
Q-18.A___________ is a semiconductor memory device used to store information,
which is permanent in nature.
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Question 19 of 30
Q-19.The 8085 is based in a _____ pin DIP
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Question 20 of 30
Q-20.When more than one input can be active, the priority ____________ must be
used.
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Question 21 of 30
Q-21.What does a decimal number represents?
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Question 22 of 30
Q-22.Full adder can realized using
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Question 23 of 30
Q-23.Which of the following logic family dissipates minimum power?
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Question 24 of 30
Q-24.A _________________ is a circuit, which can remember values for a long
time or change values when required
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Question 25 of 30
Q-25.When one of the inputs of two-input a XOR gate is Logic High, the output will
be ________ of the other input
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Question 26 of 30
Q-26. ___________ and Clear should not be 0 at the same time; otherwise, both the
outputs will be 1, which is known as invalid state.
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Question 27 of 30
Q-27.The characteristic equation of any flip-flop describes the
__________________ of the next state in terms of the present state and inputs.
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Question 28 of 30
Q-28.the number of flip flops required for a mod 16 ring counter are
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Question 29 of 30
Q-29.the table which shows the necessary levels at J and K input to produce every possible flip flop state transition is called
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Question 30 of 30
Q-30.There are _____________ Minterms for 3 variables (a, b, c).
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