Top 550+ Solved Digital Principles and System Design MCQ Questions Answer
Q. In a multiplexer, the selection of a particular input line is controlled by
a. data controller
b. selected lines
c. logic gates
d. both data controller and selected lines
Q. How many select lines would be required for an 8- line-to-1-line multiplexer?
a. 2
b. 4
c. 8
d. 3
Q. A basic multiplexer principle can be demonstrated through the use of a
a. single-pole relay
b. dpdt switch
c. rotary switch
d. linear stepper
Q. How many NOT gates are required for the construction of a 4-to-1 multiplexer?
a. 3
b. 4
c. 2
d. 5
Q. In the given 4-to-1 multiplexer, if c1 = 0 and c0 = 1 then the output M is
a. x0
b. x1
c. x2
d. x3
Q. The full form of HDL is
a. higher descriptive language
b. higher definition language
c. hardware description language
d. high descriptive language
Q. The full form of VHDL is
a. very high descriptive language
b. verilog hardware description language
c. variable definition language
d. none of the mentioned
Q. VHSIC stands for
a. very high speed integrated circuits
b. very higher speed integration circuits
c. variable high speed integrated circuits
d. variable higher speed integration circuits
Q. VHDL is being used for
a. documentation
b. verification
c. synthesis of large digital design
d. all of the mentioned
Q. At high frequencies when the sampling interval is too long in a frequency counter
a. the counter works fine
b. the counter undercounts the frequency
c. the measurement is less precise
d. the counter overflows
Q. The output frequency related to the sampling interval of a frequency counter as
a. directly with the sampling interval
b. inversely with the sampling interval
c. more precision with longer sampling interval
d. less precision with longer sampling interval
Q. In an HDL application of a stepper motor, what is done next after an up/down counter is built?
a. build the sequencer
b. test it on a simulator
c. test the decoder
d. design an intermediate integer variable