MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your GATE practice papers - Electronics & Communication knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What willbe the value of largest MOD ripple counter that can be implemented in order to operate upto 16 MHzusing J-K flipflops with t = 10 ns? (Marks : 02) |
| A. | 8 |
| B. | 10 |
| C. | 32 |
| D. | 64 |
| Answer» E. | |
| 2. |
Which is the correct chronological order of the steps adopted in Quine-Mc Cluskey Method ?A. Listing of primary implicantsB. Listing of all given minterms in binary equivalent formC. Arrangement of minterms in accordance to number of '1'sD.Selection of minimum number of primes which covers all the mintermsE. Comparison of each binary number with every term in higher next category at adjacent position. If the difference exists by one position,then check mark is assigned and written in the next column.F. Repetition ofstep E for resultant column & continuation of cycle until the occurrence of no further elimination in variables (Marks : 02) |
| A. | A, B, C, D, E, F |
| B. | C, A, B, F, A, D |
| C. | B , C , E, F, A, D |
| D. | B, A, C,D, E, F |
| Answer» D. B, A, C,D, E, F | |
| 3. |
What is the probability of output generation when the inputs are '1' &'0' respectively in S-R clocked flipflop? (Marks : 02) |
| A. | 1,1 & output remains undefined because outputs try to become '1' |
| B. | 1,0 & flip-flop is reset |
| C. | 0,1 & flip-flop is set |
| D. | 0,0 & output remains unchanged |
| Answer» D. 0,0 & output remains unchanged | |
| 4. |
Choose the incorrect statement(s) from the following:A. MROM does not allow the storage of user specified datato the manufacturer of the memoryB. PROM can be reprogrammed again and again at any number of timesC. EPROM allows to erase the stored content by direct exposure of chip to UV radiations every time before reprogramming D. E PROM allows erasing in an electrical manner despite the exposure of chip to UV rays. (Marks : 02) |
| A. | A & B |
| B. | C & D |
| C. | Only C |
| D. | B & D |
| Answer» B. C & D | |
| 5. |
What kind of current sources are applicable for replacing large resistors so as toprevent them from occupying copious areas on IC chip in the voltage regulator circuits? (Marks : 02) |
| A. | Simple Current Sources |
| B. | Widlar Current Sources |
| C. | Wilson Current Sources |
| D. | Mirror Current Sources |
| Answer» C. Wilson Current Sources | |
| 6. |
Which reasons prohibit /reduce the probability of recombining of charge carriers in the base region of bi-polar junction transistor amplifier? (Marks : 02) |
| A. | Increase in collector voltage increases the space charge width & decreases base width |
| B. | Increase in emitter voltage increases the space charge width & decreases base width |
| C. | Increase in emitter voltage decrease the space charge width & increases base width |
| D. | Increase in collector voltage decreases the space charge width & increases base width |
| Answer» B. Increase in emitter voltage increases the space charge width & decreases base width | |
| 7. |
Consider the following statements. Which of them represents the precise condition of clipper circuitsthat clips the input voltage above a reference voltage?A. If V> V , then diode is supposed to be reversed-biased & hence V= VB. If V> V , then diode is supposed to be forward-biased & hence V = V (Marks : 02) |
| A. | A is false and B is true |
| B. | A is true and B is false |
| C. | Both A & B are true |
| D. | Both A &B are false |
| Answer» C. Both A & B are true | |
| 8. |
What values of resistance are offered by an ideal diode in forward and reverse biased conditions respectively?(Marks : 01) |
| A. | zero & infinity |
| B. | infinity & zero |
| C. | zero & unity |
| D. | unity & infinity |
| Answer» B. infinity & zero | |
| 9. |
Which current acts as a constant form of current source in an active region of BJT amplifiers? (Marks : 01) |
| A. | Collector Current |
| B. | Emitter Current |
| C. | Base Current |
| D. | All of the above |
| Answer» B. Emitter Current | |
| 10. |
What is the possible form of output generation in the secondary by the centre-tapped primary of push-pull amplifier due to combination of two collector currents? (Marks : 01) |
| A. | sine wave |
| B. | square wave |
| C. | cosine wave wave |
| D. | triangular wave |
| Answer» B. square wave | |