Deck 5: Sequential Circuits and Logic Gat

Question 1

A basic S-R flip-flop can be constructed by cross-coupling of which basic logic gates?

A)and or or gates
B)xor or xnor gates
C)nor or nand gates
D)and or nor gates

Answer 1

nor or nand gates

Question 2

The logic circuits whose outputs at any instant of time depends only on the present input but also on the past outputs are called

A)combinational circuits
B)sequential circuits
C)latches
D)flip-flops

Answer 2

sequential circuits

Question 3

Whose operations are more faster among the following?

A)combinational circuits
B)sequential circuits
C)latches
D)flip-flops

Answer 3

combinational circuits

Question 4

How many types of sequential circuits are?

A)2
B)3
C)4
D)5

Question 5

The sequential circuit is also called                        

A)flip-flop
B)latch
C)strobe
D)adder

Question 6

The basic latch consists of                        

A)two inverters
B)two comparators
C)two amplifiers
D)two adders

Question 7

In S-R flip-flop, if Q = 0 the output is said to be                        

A)set
B)reset
C)previous state
D)current state

Question 8

The output of latches will remain in set/reset untill                        

A)the trigger pulse is given to change the state
B)any pulse given to go into previous state
C)they don't get any pulse more
D)the pulse is edge-triggered

Question 9

What is a trigger pulse?

A)a pulse that starts a cycle of operation
B)a pulse that reverses the cycle of operation
C)a pulse that prevents a cycle of operation
D)a pulse that enhances a cycle of operation

Question 10

A latch is an example of a                        

A)monostable multivibrator
B)astable multivibrator
C)bistable multivibrator
D)555 timer

Question 11

Latch is a device with                        

A)one stable state
B)two stable state
C)three stable state
D)infinite stable states

Question 12

Why latches are called a memory devices?

A)it has capability to stare 8 bits of data
B)it has internal memory of 4 bit
C)it can store one bit of data
D)it can store infinite amount of data

Question 13

Two stable states of latches are                        

A)astable & monostable
B)low input & high output
C)high output & low output
D)low output & high input

Question 14

How many types of latches are __

A)4
B)3
C)2
D)5

Question 15

The full form of SR is                        

A)system rated
B)set reset
C)set ready
D)set rated

Question 16

The SR latch consists of                        

A)1 input
B)2 inputs
C)3 inputs
D)4 inputs

Question 17

The outputs of SR latch are                        

A)x and y
B)a and b
C)s and r
D)q and q'

Question 18

The first step of analysis procedure of SR latch is to                        

A)label inputs
B)label outputs
C)label states
D)label tables

Question 19

The inputs of SR latch are                        

A)x and y
B)a and b
C)s and r
D)j and k

Question 20

When a high is applied to the Set line of an SR latch, then                        

A)q output goes high
B)q' output goes high
C)q output goes low
D)both q and q' go high

Question 21

When both inputs of SR latches are low, the latch                        

A)q output goes high
B)q' output goes high
C)it remains in its previously set or reset state
D)it goes to its next set or reset state

Question 22

When both inputs of SR latches are high, the latch goes                        

A)unstable
B)stable
C)metastable
D)bistable

Question 23

The full form of MOS is                        

A)metal oxide semiconductor
B)metal oxygen semiconductor
C)metallic oxide semiconductor
D)metallic oxygen semiconductor

Question 24

What are the types of MOSFET devices available?

A)p-type enhancement type mosfet
B)n-type enhancement type mosfet
C)depletion type mosfet
D)all of the mentioned

Question 25

Which insulating layer used in the fabrication of MOSFET?

A)aluminium oxide
B)silicon nitride
C)silicon dioxide
D)aluminium nitrate