ESE EC 2018 Achiever Study Plan: Digital Circuits Quiz 1

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Question 1

The minterm expansion of is

• Am₂ + m₄ + m₆ + m₁
• Bm₀ + m₁ + m₃ + m₅
• Cm₇ + m₆ + m₂ + m₄
• Dm₂ + m₃ + m₄ + m₅

Question 2

How would a binary number 0010 be represented by a 4-bit binary word, if the range of voltage is 0 to 10 V?

• A0.666 V
• B1.333 V
• C0.333 V
• D2.000 V

Question 3

The main disadvantage of DTL logic circuits is

• AMedium speed
• BVery large power supply voltage
• CHigh cost
• DVery large gate propagation delay.

Question 4

In serial port interrupt, program which takes care of serial data communication should be reset to enable next data communication operation using:

• ARI = 0
• BTI = 0
• CRI or TI = 0
• DAll of above

Question 5

When a large number of analog signals is to be converted to digital form, an analog multiplexer is used. The A-to-D converter most suitable in this case will be

• AForward counter type
• BUp-down counter type
• CSuccessive approximation type
• DDual slope type

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