# Practice Test: Question Set - 03

**1. How many bytes are there in 1011 1001 0110 1110 numbers?**

- (A) 1

- (B) 2

- (C) 4

- (D) 8

**2. The 2-input XOR gate has a high output only when the input bits are ________**

- (A) Even

- (B) Different

- (C) Low

- (D) High

**3. What is the 1's complement of 0000 1111 0010 1101 number?**

- (A) 1111 0000
0010 1101

- (B) 1111 0000
1101 0010

- (C) 1111 1100
1010 1100

- (D) 1001 0010
1010 1100

**4. Conversion of an octal number 134**

_{8}to a binary number is- (A) 001011011

_{2}

- (B) 001101100

_{2}

- (C) 001011100

_{2}

- (D) 110011

_{2}

**5. Small-scale integration, abbreviated _______ refers to fewer than 12 gates on the same chip. Medium-scale integration (MSI) means 12 to 100 gates per chip. And large-scale integration (LSI) refers to more than _______ gates per chip.**

- (A) SSI, 75

- (B) SSI, 100

- (C) SSI, 1000

- (D) SSI, 10000

**6. Resistor Ratio design is used in linear ICs because**

- (A) Ratios
increase input resistance

- (B) Ratios
increase amplifier gain

- (C) Precise
resistor values are not possible with IC processes

- (D) None of the
above

**7. What is the ASCII code for T?**

- (A) 1010100

- (B) 1011010

- (C) 1011100

- (D) 1011111

**8. A shift register can be used for:**

- (A) Parallel
to serial conversion

- (B) Serial to
parallel conversion

- (C) Digital
delay line

- (D) All
of the above

**9. For what logic gate the outputs in complement of the input?**

- (A) NOT

- (B) AND

- (C) OR

- (D) XOR

**10. Conversion of hexadecimal number 1D7F**

_{16}to a decimal number is- (A) 7551

_{10}

- (B) 8771

_{10}

- (C) 5557

_{10}

- (D) 7781

_{10}

**11. The hexadecimal number system is widely used in analyzing and programming ________**

- (A) Registers

- (B) Chips

- (C) Microprocessors

- (D) Vacuum tube

**12. Conversion of an octal number 3137**

_{8}to it's decimal equivalent is- (A) 1631

_{10}

- (B) 1632

_{10}

- (C) 1531

_{10}

- (D) 1931

_{10}

**13. Multiplication of 47**

_{8}by 52_{8}is- (A) (3144)

_{8}

- (B) (4147)

_{8}

- (C) (3146)

_{8}

- (D) (3184)

_{8}

**14. A gate is a logic circuit with one or more input signals but ________ output signal.**

- (A) Two

- (B) Double

- (C) One

- (D) More than
one

**15. A microprocessor has memory locations from 0000 to 3FFF. Each memory location stores 1 byte. How bytes can the memory store? Express this in kilobytes?**

- (A) 4,095, 4K

- (B) 16,384, 16K

- (C) 32,740, 32K

- (D) 46,040, 46K

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