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Electronics Engineering Objective Questions { Digital Circuit and Microprocessor }

113. CMOS circuits are extensively used for onchip computers mainly because of their extremely
A. low power dissipation
B. large packing density
C. high noise immunity
D. low cost
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114. The main advantage of a CMOS logic family over the TTL family is its
A. much reduced power
B. increased spe:d of operation
C. extremely low cost
D. series base resistor
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115. CMOS logic family uses only
A. MOSFETs and resistors
B. NMOS circuits
D. bipolar transistors
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116.  Power is drawn by a CMOS circuit only when
A. its output is high
B. its output is low
C. it switches logic levels
D. in static state
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117.  The most obvious identifying feature of a TTL gate is its
A. large fan-out
B. high power dissipation
C. interconnected transistors
D. multiemetter input transistor
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118.  In digital circuits shottky transistors are preferred over normal transistor because of their
A. lower propagation delay
B. higher propagation delay
C. lower power dissipation
D. higher power dissipation
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119.  A unique operting feature of ECL circuit is its
A. very high speed
B. high power dissipation
C. series base resistor
D. compatibility with other logic series
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