⚡Electrical Engineering MCQs
Electrical Engineering MCQs
499 MCQs171
Positive logic in a logic circuit is one in which______________?
Alogic 0 and 1 are represented by 0 and positive voltage respectively
Blogic 0 and, -1 are represented by negative and positive voltages respectively
Clogic 0 voltage level is higher than logic 1 voltage level
Dlogic 0 voltage level is lower than logic 1 voltage level
172
The number of Boolean functions that can be generated by n variables is equal to_________________?
A2n
B22 n
C2n-1
D— 2n
173
The number 1000 would appear just immediately after__________________?
AFFFF (hex)
B1111 (binary)
C7777 (octal)
DAll of the above
174
What is the octal equivalent of the binary number : 10111101 ?
A675
B275
C572
D573
175
(1(10101)2 is_______________?
A(37)10
B( 69)10
C(41 )10
D— (5)10
176
Consider the representation of six-bit numbers by two’s complement, one’s complement, or by sign and magnitude: In which representation is there overflow from the addition of the integers 011000 and 011000 ?
ATwo’s complement only
BSign and magnitude and one’s complement only
CTwo’s complement and one’s complement only
DAll three representations
177
Digital computers are more widely used as compared to analog computers, because they are______________?
Aless expensive
Balways more accurate and faster
Cuseful over wider ranges of problem types
Deasier to maintain
178
The binary code of (21.125)10 is_______________?
A10101.001
B10100.001
C10101.010
D10100.111
179
In which of the following base systems is 123 not a valid number ?
ABase 10
BBase 16
CBase8
DBase 3
180
A class A power amplifier is sometimes called______________amplifier?
ASymmetrical
BSingle-ended
CReciprocating
DDifferential