976
.i,
Octob6 2(}15
Time - Three hours
(Maximum Marks:75)
_,".
tN.B:
(7) Answer any fifteen guestions in
of eoch guestion in PART - B.
(21 Each.question car/ies 7
PART - B.]
PART
-A
and division (A)
or
division (B)
bne) mark in PiRr - A and 72 (twelvel morks in
.PA8T_A
1.
Whot is on ottenuqtor?
2.
Whot is constont resistonce equctiser?
3.
Whqt is on ontenne?
4.
Mention the types of propogqtion.
5.
Mention ony one:need for modutqtion.
6.
List the types of AM signol.
7.
Whqt is meqnt by
8.
Mention the types of AGC.
9.
'' ' '"'
compore Al,l ona FM.''''=-
10.
Expond DPIM.
11.
Defi ne
lF?
1-_ . r!+_::,
' ...-' Irr
:'
frequency modulqtion.
72. Whqt is meont by:quontising
13.
:t
noise?
'
Compore piezo-eLectric ond moving coit microphones.
14. Whot is o surround sound system?
15.
Whot is o stereophonic system?
L6.
Whot is Dotby system?
77. Define ospect rotio.
18.
Mention the types of sconning.
19.
Whqt is pLosmo dispLoy?
20.
Whot is the use of coble TV?
[Turn over.....
185t94-1
-1;f , FfiRT -..8'
27.
(A)
"
ExpLoin qbout yogi ontenno witfr o neqt diogrom.
(or)
22'
(B)
Exptoin qbout spoce wove propogotion with diogrom.
(A)
ExpLoin qbout phose shift method of SSB generqtion.
(or)
(B)
23. . (A)
Exptoin SSB receiver with b{ock diogrom.
Expl.oin obout vqrqctor diode FM modulqtor with o diogrom.
(Or)
(B)
24. (A)
Exptoin generotion ond detection of pAM signoL.
Exploin
diogrom.
(B)
25. (A)
the working of piezo-etectric
ExpLoin the working of crossover network.
Exptoin the'bLock diogrom of pAL colour TV receiver.
(Or)
s'.
k,.:,
(B)
1
i:'r1. ii-,:
:
Write notes on: (i) ptqsmA,"dirytoy{ii},Ftondy com:
. ii
185t94-2
microphone with o
l
. ;: