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Directions to Solve

In the following questions choose the word which is the exact OPPOSITE of the given words.

Q1: ESSENTIAL

A Minors

B Trivial

C Noughts

D Extra

Q2:
Which of the following sentences are correct about a for loop in a C program?
1: for loop works faster than a while loop.
2: All things that can be done using a for loop can also be done using a while loop.
3: for(;;); implements an infinite loop.
4: for loop can be used if we want statements in a loop get executed at least once.

A 1, 2

B 2, 3, 4

C 2, 3

D 1

Q3: An eight-line multiplexer must have as inputs ________.

A eight data inputs and four select inputs

B eight data inputs and two select inputs

C four data inputs and three select inputs

D eight data inputs and three select inputs

Q4: In order to select data input I5 of a 74151 eight-line multiplexer, the select inputs must be ________.

A

B

C

D

Q5: The ________ circuit overcomes the problem of switching caused by jitter on the inputs.

A astable multivibrator

B Schmitt trigger

C monostable multivibrator

D bistable multivibrator

Q6: Why would a delay gate be needed for a digital circuit?

A to provide for hold times

B A delay gate is never needed.

C to provide for setup times

D to provide for setup times and hold times

Q7: An optocoupler is an integrated circuit with an LED and a zener diode encased in the same package.

A False

B True

Q8: A Schmitt trigger has VT+ = 2.0 V and VT– = 1.2 V. What is the hysteresis voltage of the Schmitt trigger?

A 0.6 volt

B 0.8 volt

C 0.4 volt

D 1.2 volts

Q9: Which of the following circuit parameters would be most likely to limit the maximum operating frequency of a flip-flop?

A propagation delay time

B setup and hold time

C clock pulse HIGH and LOW time

D clock transition time

Q10: A 0.01-F capacitor is recommended by TTL manufacturers for ________ the power supply.

A rectifying

B decoupling

C grounding

D filtering