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MCQ Problems / Explanations



Conceptual level is also know as ____________

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__________ helps in reflecting, measuring, assessing and creating new goals.

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Which is the purpose of negotiation from the following?

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The expression (A + B)(A bar . B bar) is equivalent to

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Typically IC 7400 contains _______ .

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How many truth table entries are necessary for a four-input circuit?

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A single transistor can be used to build which of the following digital logic gates?

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The expression A(A + B) is equivalent to _____

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Which from the following two input gate is also know as equality gate.

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In a three input gate if one of the input is made low, the output remains high irrespective of logic level of other...

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If a 3-input NOR gate has eight input possibilities, how many of those possibilities will result in a HIGH output?

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How many AND gates are required to realize output Y= f(C,D,E,F,G) = CD + EF + G?

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Which of the following is true as per De Morgan's law (i) (A + B)bar = A bar + B bar (ii) (A + B)bar = A bar . B ba...

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Minimum number of NOR gates required to design OR gate will be __________ .

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Minimum NAND gates required to design an OR gate will be ___________

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Output of XOR gate is high if _____________.

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The output of NOR gate is high if __________.

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The output of NAND gate is low if __________.

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From the following which of the logic family has maximum fan out ?

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Recommended fan out TTL is around __________.

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Which of the following logic families offers better noise immunity ?

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In a stable logic state TTL devices consume substantially ______ power than equivalent CMOS.

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Basic gate realized in TTL is ________

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Because of its operation ECL is also be named as __________

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The full form of ECL is __________

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From the logic families listed below which one is better for the applications requiring low power consumption?

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From the logic families mentioned below which can be specifically adopted for high speed applications?

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Which type of output current flows towards or into the output terminal in a logic circuit?

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What should be the value of input voltage for an efficient operation of a logic circuit by avoiding the conditions ...

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Suppose that the digital IC family has a fan out of 6. It implies that the gate can supply the current to _______ o...

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In the two-transistor voltage regulator, the output voltage

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The Zener current in a Zener follower is

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A common-base amplifier can be used when

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An application of a common-base amplifier is when

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A common-base amplifier has a voltage gain that is

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If a CE stage is direct coupled to an emitter follower, how many coupled capacitors are there between the two stage...

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Usually, the distortion in an emitter follower is

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If R1 is open in an emitter follower, which of these is true?

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If the load resistor of fig.11-1a is shorted, which of the following are different from their normal values:

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If the generator voltage is 5 mV in an emitter follower, the output voltage across the load is closest to

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A Darlington transistor has

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If an emitter follower circuit always makes the source resistance

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If the load resistance of an emitter follower is very large, the external AC emitter resistance equals

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If a CE stage is directly coupled to an emitter follower

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For maximum power transfer, a CC amplifier is designed so

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An emitter-follower buffer is generally used when

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The output voltage of an emitter follower is approximately

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The AC emitter current is closest to

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The input voltage to an emitter follower is usually

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The output voltage of an emitter follower is across the

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The AC base voltage of the emitter follower is across the

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The input impedance of the base of an emitter follower is usually

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The total AC emitter resistance of an emitter follower equals

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An emitter follower has a voltage gain that is

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CC configuration is used for impedance matching because its ________

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For highest power gain, one would use _______ configuration

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A transistor amplifier has high output impedance because ________

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A transistor converts _________

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The output power of a transistor amplifier is more than the input power because the additional power I supplied by ...

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In transistor amplifiers, we generally use _______ capacitors

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The value of collector load RC in a transistor amplifier is _____ the output impedance of the transistor

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The DC load of a transistor amplifier is generally ______ that of AC load

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A CE amplifier is also called ______ circuit

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The radio wave picked up by the receiving antenna is amplified about ______ times to have reasonable sound output

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If the input capacitor of a transistor amplifier is short-circuited, then ______

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If a transistor amplifier feeds a load of low resistance (e.g. speaker), then voltage gain will be _____

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The ratio of output to input impedance of a CE amplifier is _______

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The purpose of emitter capacitor (i.e. capacitor across RE) is to _______

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The purpose of coupling capacitor in a transistor amplifier is to ________

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In order to get more voltage gain from a transistor amplifier, the transistor used should have ____

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An amplifier has a power gain of 100. Its db gain is_______

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In the AC equivalent circuit of a transistor amplifier, the capacitors are considered ________

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If the power and current gains of a transistor amplifier are 16500 and 100 respectively, then voltage gain is _____...

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In practice, the voltage gain of an amplifier is expressed ______

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If the load resistance of the second stage opens, the voltage gain of the firsts stage will

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If the BE diode of the second stage opens, the output voltage gain of the first stage will

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If the input impedance of the second stage decreases, the voltage gain of the first stage will

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If the emitter-bypass capacitor is shorted, the AC input voltage at the base will

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If the collector resistance is open, the AC input voltage at the base will

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If the emitter resistance is open, the AC input voltage at the base will

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If output coupling capacitor is open, the AC input voltage will

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If the bypass capacitor is open, the AC input voltage at the base will

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If input-coupling capacitor is open, the AC input voltage will

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If any capacitor is open, the AC output voltage will

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If the load resistance is open, the AC output voltage will

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If the collector resistor is shorted, the AC output voltage will

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If the emitter-bypass capacitor opens, the AC output voltage will

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The feedback resistor

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A swamped amplifier uses

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To reduce the distortion of an amplifier signal, you can increase the

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If the emitter-bypass capacitor shorts, the base DC voltage will

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The AC collector resistance of the first stage includes

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In a swamped amplifier, the effects of the emitter diode become

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The emitter of swamped amplifier

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Compared to a CE stage, a swamped amplifier has an input impedance that is

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Compared to the AC resistance of the emitter diode, the feedback resistance of a swamped amplifier should be

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Thee output voltage of an emitter-bypassed CE stage is usually

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When the emitter resistance RE doubles, the AC emitter resistance

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The AC emitter current times the AC emitter resistance equals the

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The voltage gain equals the output voltage divided by the

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