UNIT 4 : RADARS


 UNIT 4 

RADARS


SHORT ANSWER QUESTIONS :

1) Principal and advantages of RADAR?

2) Radar range equation ? factors effect on radar range?

3) Types of radars?

4) Advantages and Disadvantages of pulse radar ?

5) State the need of Duplexer ?

6) What is Doppler effect in radar?

7) Functions of Duplexer?

8) Types of Radar displays?

9) Concept of Blind speed?

10) Applications of various radar systems ?


ESSAY QUESTIONS :

1) Block diagram and working of C.W. radar ? 

2) Block diagram and working of Pulse radar ? 

3) Block diagram and working of MTI radar ?


Comments

Post a Comment

Popular posts from this blog

UNIT 3 : MICROWAVE COMPONENTS AND DEVICES

 UNIT 3  MICROWAVE COMPONENTS AND DEVICES  SHORT ANSWER QUESTIONS : 1) Define microwave ? state different microwave frequency bands ? 2) Advantages and applications of microwave? 3) Define wave guide? 4) Advantages and applications of wave guide ? 5) State the functions of wave guides and classify them ? 6) Short notes on T-junctions (H plane T ,E plane T ,Hybrid T ) ? 7) Define TE & TM modes in wave guide ? 8) Different microwave passive components? 9) Define a) dominant mode b) cutoff freq c) wave guide length d) phase velocity e) group velocity 10) Wave guide junctions / different T-junctions? 11) Define MW-Bends, Tapers? 12) What are different types of solid state devices in Micro waves? ESSAY QUESTIONS : 1) Construction and working of a) Gunn diode b) impatt diode 3) trapatt diode ? 2) Working principals of a) Meflex klystron b) Magnetron  3) Working principals of  T.W.T?
Read more

UNIT 1 : RADIO WAVE PROPAGATION

UNIT 1 RADIO WAVE PROPAGATION  SHORT ANSWER QUESTIONS : 1) Which layers of ionosphere exists in day time and night time? 2) Define EM wave ? effects of environment on EM wave (reflection, refraction,diffraction and                  interference) 3) Limitations of ground wave? 3) Factors affect space wave propagation ? 4) Define refractive index , phase velocity? 5) Define reflection coefficient , actual height ? ESSAY QUESTIONS : 1) Explain ground wave propagation with applications ? effects on ground wave propagation? 2) Explain sky wave propagation? short notes on layers of sky wave ? 3) Space wave propagation with applications ?  4) Define a) Skip distance b) field strength c) virtual height d) MUF e) critical frequency 5) Short notes on i) DUCT propagation   ii) Tropospheric scatter propagation
Read more