Q1. How many bits are needed to locate 128k memory locations?
(A) 32
(B) 17
(C) 8
(D) 32

Q2. EX-OR Gate can work as NOT Gate provided
(A) one input is fixed at logic level 1
(B) one input is fixed at logic level 0
(C) by shorting both inputs
(D) none of the above

Q3. diode is a
(A) passive device
(B) active device
(C) literal
(D) none of these

Q4. CMOS has ________ power consumption
(A) high
(B) medium
(C) low
(D) none of the above

Q5. a 64 bit word consist of ________ bytes
(A) 8
(B) 16
(C) 4
(D) 32

Q6. dynamic memory cells store a data bit in a
(A) flip flop
(B) diode
(C) resistor
(D) capacitor

Q7. fan-out is specifies in terms of
(A) voltage
(B) current
(D) wattages

Q8. 00 represents a pixel they pixel is known as
(A) light grey
(B) black pixel
(C) dark grey pixel
(D) white pixel

Q9. Minimum NAND gates required for a FULL ADDER is
(A) 7
(B) 9
(C) 8
(D) 6

Q10. Rom programmed during manufacturing process itself is called as
(A) PROM
(B) EPROM
(C) EEPROM
(D) MROM

Q11. what is Boolean algebra known as
(A) gate algebra
(B) transistor algebra
(C) switching algebra
(D) counting algebra

Q12. In digital system 1 byte is equal to how many bits
(A) 1
(B) 4
(C) 8
(D) 2

Q13. a nibble is equal to how many bits ?
(A) 2
(B) 4
(C) 8
(D) 16

Q14. A digital circuit that can store on a bit is a ?
(A) Xor gate
(B) Flip flop
(C) Gate
(D) Register

Q15. Binary number system has how many digits ?
(A) 0
(B) 1
(C) 4
(D) 2

Q16. which of the following is digital device ?
(A) Regulator of a fan
(B) microphone
(C) resistance of a material
(D) light switch

Q17. A three state buffer gives output as ?
(A) set reset halt
(B) high low float
(C) Both of these
(D) None

Q18. which is a vectored interrupt from following ?
(A) TRAP
(B) RST 7.5
(C) RST 6.5
(D) INTR

Q19. In digital techniques which are said to be universal gate ?
(A) Nor Nand
(B) Or Nor Exor
(C) Nand And
(D) And Nand Xor

Q20. D flip flop is said transparent when
(A) output is low
(B) output is high
(C) output follows clock
(D) output follows input

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