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NPP Number System, Boolean Algebra and Logic Circuits 331

Q.14. The following gate can be used as a parity checker:
n¡[aQ>r MoH$ hoVw {ZåZ JoQ> H$m à¶moJ {H$¶m OmVm h¡…
(a) AND (b) NOT (c) XOR (d) OR
Q.15. The fundamental product corresponding to a one in the output is called:

AmCQ>nwQ> ‘| EH$ Ho$ gmnoj Ho$ ~mX H$m ’§$S>m‘|Q>b àmoS>³Q> h¡…
(a) Maxterm / ‘¡³gQ>‘© (b) Mintern / {‘ZQ>‘©
(c) Output / AmCQ>nwQ> (d) None of these / BZ‘| go H$moB© Zht
Q.16. A bubbled AND gate is equivalent to:
~~ëS> AND JoQ> ...... Ho$ g‘H$j h¡:
(a) AND (b) NOT (c) NOR (d) OR
Q.17. A bubbled OR gate is equivalent to:
~~ëS> OR JoQ> ....... Ho$ g‘H$j h¡:
(a) NAND (b) NOT (c) XOR (d) XNOR
Q.18. Shorted NAND and shorted NOR gates are equivalent to:
em°Q>}S> NAND VWm em°Q>}S> NOR JoQ²>g ........ Ho$ g‘H$j h¡:
(a) AND (b) NOT (c) NOR (d) OR
Q.19. The group of four in a K-map is called:
K-‘¡n ‘| Mma Ho$ g‘yh H$mo H$hVo h¢…
(a) octet / Amo³Q>oQ> (b) pair / no¶a (c) single / qgJb (d) quad / ³dmS>
Q.20. The group of eight in a K-map is called:
K-‘¡n ‘| AmR> Ho$ g‘yh H$mo H$hVo h¢…
(a) octet / Amo³Q>oQ> (b) pair / no¶a (c) single / qgJb (d) quad / ³dmS>

Answer Keys..... 20. (a) 19. (d) 18. (b) 17. (a) 16. (c) 15. (b)

11. (b)
12. (c)
10. (c)
9. (b)
8. (b)
13. (b)
14. (c)
1. (c)
2. (c)
7. (b)
4. (c)
5. (c)
6. (b)
3. (b)
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