Q.1

Binary subtraction of a decimal 15 from 43 will utilize which two's complement?

  • 101011
  • 110000
  • 011100
  • 110001
Q.2

How many basic binary subtraction operations are possible?

  • 4
  • 3
  • 2
  • 1
Q.3

When multiplying in binary the decimal values 13 × 11, what is the third partial product?

  • 100000
  • 100001
  • 0000
  • 1011
Q.4

How many basic binary subtraction combinations are possible?

  • 4
  • 3
  • 2
  • 1
Q.5

Use the two's complement system to add the signed numbers 11110010 andDetermine, in decimal, the sign and value of each number and their sum.

  • –14 and –13; –27
  • –113 and –114; 227
  • –27 and –13; 40
  • –11 and –16; –27
Q.6

The range of an 8-bit two's complement word is from:

  • +12810 to –12810
  • –12810 to +12710
  • +12810 to –12710
  • +12710 to –12710
Q.7

The selector inputs to an arithmetic-logic unit (ALU) determine the:

  • selection of the IC
  • arithmetic or logic function
  • data word selection
  • clock frequency to be used
Q.8

Adding in binary, the decimal values 26 + 27 will produce a sum of:

  • 111010
  • 110110
  • 110101
  • 101011
Q.9

When 1100010 is divided by 0101, what will be the decimal remainder?

  • 2
  • 3
  • 4
  • 6
Q.10

A full adder adds three bits, a half adder adds 1-1/2 bits.

  • True
  • False
Q.11

What are the two types of basic adder circuits?

  • half adder and full adder
  • half adder and parallel adder
  • asynchronous and synchronous
  • one's complement and two's complement
Q.12

Using the two's complement number system we can add numbers with like signs and obtain the correct result.

  • True
  • False
Q.13

Signed binary numbers have one bit that represents the sign, with the remaining bits representing the magnitude.

  • True
  • False
Q.14

A full adder adds ____.

  • two 2-bit binary numbers
  • two 4-bit binary numbers
  • two single bits and one carry bit
  • two 2-bit numbers and one carry bit
Q.15

One advantage of using the 2's complement system to represent signed numbers is that you ___________.

  • can perform subtraction by performing addition
  • can perform addition by performing subtraction
  • can perform division through repeated subtraction
  • none of the above
Q.16

Adding the two's complement of –11 + (–2) will yield which two's complement answer?

  • 1110 1101
  • 1111 1001
  • 1111 0011
  • 1110 1001
Q.17

The two's complement system is to be used to add the signed numbers 11110010 andDetermine, in decimal, the sign and value of each number and their sum.

  • –14 and –13; –27
  • –113 and –114; 227
  • –27 and –13; 40
  • –11 and –16; –27
Q.18

Two half adders can be combined to form a full adder with no additional gates.

  • True
  • False
Q.19

The operands in a subtraction operation are the subend and the minuend.

  • True
  • False
Q.20

The bits of a number that tell how large the number is are called ____________________.

  • carry bits
  • magnitude bits
  • sign bits
  • most significant bits
0 h : 0 m : 1 s