**Hello Aspirants.**

Welcome to **Online Computer Aptitude Quiz **Section based on New Pattern in AffairsCloud.com. Here we are creating quiz based on Number System conversion for SBI/IBPS Exams.

**If ∆ represents ‘0’ and ○ represents ‘1’. What will be the one’s complement of ∆○∆∆○○?**

1.101100

2.010011

3.100110

4.001100

5.None of these

Answer –**1.101100**

**Explanation :**

∆○∆∆○○ => 010011

010011 1’s complement is 101100

**represents which of the following logic gate ?**

1.AND

2.OR

3.NOT

4.NOR

5.None of these

Answer –**1.AND**

**Explanation :**

AND Gate is a Boolean operator which gives the value one if and only if all the operands are one, and otherwise has a value of zero.

**Which Boolean operator will operate with only one variable ?**

1.NOT

2.NAND

3.NOR

4.Exclusive NOR

5.None of these

Answer –**1.NOT**

**Explanation :**

NOT is a Boolean operator with only one variable that has the value one when the variable is zero and vice versa.

**represent ________________**

1.AND Gate

2.OR Gate

3.NOT Gate

4.NOR Gate

5.None of these

Answer –**2.OR Gate**

**Explanation :**

A Logic OR Gate or Inclusive-OR gate is a type of digital logic gate that has an output which is normally at logic level “0” and only goes “HIGH” to a logic level “1”

**Triangle represents ∆ (0) and circle represents****o****(1). If triangle appears in unit’s plac****e then its value is 1. If it appears in 10’s place its value is doubled to 2 like that it continues. Using the given terminology answer the following questions. For example:**

**How will you represent ‘102’ in this code language?**

1.oo∆∆ooo

2.oo∆∆o∆∆

3.∆o∆oo∆o

4.oo∆∆oo∆

5.None of these

Answer –**4.oo∆∆oo∆**

**Explanation :**128 64 32 16 8 4 2 1 1 1 0 0 1 1 0 **The code****∆∆o∆o∆∆ represents**

1.26

2.12

3.20

4.16

5.None of these

Answer –**3.20**

**Explanation :**

∆∆o∆o∆∆ => 0010100

16+0+4+0+0=20

**Hexadecimal is a positional numeral system with a radix**

1.8

2.2

3.10

4.16

5.None of these

Answer –**4.16**

**Explanation :**

In mathematics and computing, hexadecimal (also base 16, or hex) is a positional numeral system with a radix, or base, of 16. It uses sixteen distinct symbols, most often the symbols 0–9 to represent values zero to nine, and A, B, C, D, E, F (or alternatively a, b, c, d, e, f) to represent values ten to fifteen.

**Which among the following is an appropriate Octal conversion for 10101001 ?**1.125

2.152

3.251

4.521

5.None of these

Answer –**3.251**

**Explanation :**

010 = 2

101 = 5

001 =1

10101001 = 251

**If P and Q are the inputs, then output X = P+Q is the output of**

1.NOR

2.NAND

3.AND

4.OR

5.None of these

Answer –**4.OR**

**Explanation :**

A =1, B= 0

Then y =1+0 = 1

**If A and B are the inputs, then output Y = A.B is the output of which logical operator ?**

1.NOT

2.NAND

3.NOR

4.AND

5.None of these

Answer –**4.AND**

**Explanation :**

A =1, B= 0

Then y =1.0 = 0

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