# Radiation Pattern for 4-Isotropic Elements Online Exam Quiz

Options

A : 60

B : 30

C : 90

D : 150

Options

A : hr ? 4D

B : hr ? 4D

C : hr ? 2D

D : hr ? 2D

Options

A : 41.4?

B : 30?

C : 60?

D : 90?

### The necessary condition for maximum of the second side lobe of n element array is __

Options

A : \frac{N?}{2}=?\frac{5?}{2}

B : \frac{N?}{2}=?\frac{3?}{2}

C : \frac{N?}{2}=?\frac{?}{2}

D : \frac{N?}{2}=?\frac{4?}{2}

Options

A : 60?

B : 30?

C : 180?

D : 0?

Options

A : 0

B : 60

C : 30

D : 120

### What is the frequency of antennas used for Reflection range?

Options

A : 300MHz to 16GHz

B : 3 MHz to 16MHz

C : 16MHz to 300MHz

D : 3GHz to 30GHz

### Which of the following antenna range is used for small antennas?

Options

A : Indoor ranges

B : Outdoor ranges

C : Reflection range

D : Slant range

### Which of the following doesn't come under indoor ranges?

Options

A : Slant range

B : Anechoic chamber

C : Tampered chamber

D : Compact ranges

### Which of the following doesn't come under outdoor ranges?

Options

A : Reflection range

B : Anechoic chamber

C : Slant range

D : Elevation range

### Array of N-Isotropic Sources more Online Exam Quiz

End Fire Array

Factors

Introduction

N-element Linear Array

Pattern Multiplications