Electrical Engineering MCQs

Page No. 29

(1(10101)2 is_______________?


a(37)10

✓


b( 69)10

✖


c(41 )10

✖


d— (5)10

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View Answer (37)10

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

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cTwo’s complement and one’s complement only

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dAll three representations

✓



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

✓


d easier to maintain

✖



The binary code of (21.125)10 is_______________?


a10101.001

✓


b10100.001

✖


c10101.010

✖


d10100.111

✖


View Answer 10101.001

In which of the following base systems is 123 not a valid number ?


aBase 10

✖


bBase 16

✖


cBase8

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dBase 3

✓


View Answer Base 3

A NAND gate is called a universal logic element because______________?


a it is used by everybody

✖


bany logic function can be realized by NAND gates alone

✓


call the minization techniques are applicable for optimum NAND gate realization

✖


dmany digital computers use NAND gates

✖



Most of the digital computers do not have floating point hardware because_____________?


afloating point hardware is costly

✓


bit is slower than software

✖


cit is not possible to perform floating point addition by hardware

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dof no specific reason.

✖



In the above question (Q38.) , what is the collector voltage ?


a3 V

✓


b8 V

✖


c6 V

✖


d7 V

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View Answer 3 V

The purpose of resistance in the emitter circuit of a transistor amplifier is to _________________?


aLimit the maximum emitter current

✖


bProvide base-emitter bias

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cLimit the change in emitter current

✓


dNone of the above

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The base resistor method is generally used in ________________?


aAmplifier circuits

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bSwitching circuits

✓


cRectifier circuits

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dNone of the above

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View Answer Switching circuits

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