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ESE-2018 Electrical Engineering Quiz 20
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Question 1
Consider the following statements regarding registers and latches:
1). Registers are made of edge triggered flip- flops whereas latches are made from level triggered flip-flops.
2). Registers are temporary storage devices whereas latches are not.
3). A latch employs cross-coupled feedback connections.
4). A register stores a binary word whereas a latch does not.
Which of the above statements is/are correct?
1). Registers are made of edge triggered flip- flops whereas latches are made from level triggered flip-flops.
2). Registers are temporary storage devices whereas latches are not.
3). A latch employs cross-coupled feedback connections.
4). A register stores a binary word whereas a latch does not.
Which of the above statements is/are correct?
Question 2
A circuit consists of two clocked JK flip-flops connected as follows 
and 
. Each flip-flop receives the clock input simultaneously. The circuit acts as a
and . Each flip-flop receives the clock input simultaneously. The circuit acts as a Question 3
The shift register shown in the figure is initially loaded with the bit pattern 1010. Subsequently the shift register is clocked, and with each clock pulse the pattern gets shifted by one bit position to the right. With each shift, the bit at the serial input is pushed to the left most position (msb). After how many clock pulses will the content of the shift register become 1010 again?
Question 4
Assertion (A): To obtain high switching speed in BJT based logic circuits, transistor are operated in active region.
Reason (R): In active region, a transistor works as a linear element.
Reason (R): In active region, a transistor works as a linear element.
Question 5
Match List-I (TTL Numbers) with List-II (Significance) and select the correct answer using the code given below the lists:
List-I
A). 74 LS 00
B). 74 H00
C). 7400
D). 74 L 00
List-II
1). Low power/low speed
2). High speed/high power
3). Basic NAND GATE
4). Low power Schottky
List-I
A). 74 LS 00
B). 74 H00
C). 7400
D). 74 L 00
List-II
1). Low power/low speed
2). High speed/high power
3). Basic NAND GATE
4). Low power Schottky
Question 6
In which one of the following types of analog to digital converters the conversion time is practically independent of the amplitude of the analog signal?
Question 7
Which one of the following is the correct sequence of the numbers represented in the series given below?
Question 8
A 10-bit A/D converter is used to digitilize an analog signal in the 0 to 5 V range. The maximum peak to peak ripple voltage that can be allowed in the DC supply voltage is, nearly.
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Feb 23ESE & GATE EE
