BSNL JTO Exam paper
Following Are Bharath Sanchar Nigam Limited (BSNL) Junior Telecom Officers (JTO) Exam Paper::–
If the voltage applied across a capacitance is triangular in waveform then the waveform of the current is-
a) Triangular
b) Trapezoidal
c) Sinusoidal
d) Rectangular
Answer is :- Rectangular
1. One of the following statement which is true for relative dielectric constant is -
a) It is dimensionless
b) It is not equal to unity for vacuum
c) It’s value for all substances is less than one
d) None
Answer is :- It is dimensionless
2. Pure metals generally have-
a) high conductivity and low temperature coefficient
b) high conductivity and large temperature coefficient
c) low conductivity and zero temperature coefficient
d) low conductivity and high temperature coefficient
Answer is :- high conductivity and large temperature coefficient
3. For small size, high frequency coils, the most common core material is
a) Air
b) Ferrite
c) Powdered ion
d) Steel
Answer is :- Air
4. For an abrupt junction Varactor diode, the dependence of device capacitance (C) on applied reverse bias (V) is given by-
a) C a V1/3
b) C a V-1/3
c) C a V1/2
d) C a V-1/2
Answer is :- C a V-1/3
5. A superconductor is a-
a) A material showing perfect conductivity and Meissner effect below a critical temperature
b) A conductor having zero resistance
c) A perfect conductor with highest dimagnetic susceptibility
d) A perfect conductor which becomes resistive when the current density through it exceeds a critical value
Answer is :-A material showing perfect conductivity and Meissner effect below a critical temperature
6. When a semiconductor based temperature transducer has a temperature coefficient of –2500 mV/0C then this transducer is indeed a-
a) Thermistor
b) Forward biased pn junction diode
c) Reverse biased pn junction diode
d) FET
Answer is :- Forward biased pn junction diode
7. The location of lightning arrestor is -
a) Near the transformer
b) Near the circuit breaker
c) Away from the transformer
d) None
Answer is :- Near the transformer
8. Time constant of an RC circuit increases if the value of the resistance is -
a) Increased
b) Decreased
c) Neither a nor b
d) Both a and b
Answer is :- Increased
9. Intrinsic semiconductors are those which -
a) Are available locally
b) Are made of the semiconductor material in its purest from
c) Have more electrons than holes
d) Have zero energy gaps
Answer is :- Are made of the semiconductor material in its purest from
10. The primary control on drain current in a JFET is exerted by -
a) Channel resistance
b) Size of depletion regions
c) Voltage drop across channel
d) Gate reverse bias
Answer is :- Gate reverse bias
11. The electrical conductivity of metals which is expressed in ohm-1 m-1 is of the order of -
a) 1010
b) 105
c) 10-4
d) 10-6
Answer is :- 105
12. When biased correctly, a zener diode –
a) acts as a fixed resistance
b) has a constant voltage across it
c) has a constant current passing through it
d) never overheats
Answer is :- has a constant voltage across it
13. The current amplification factor adc is given by –
a) IC/IE
b) IC/IB
c) IB/IC
d) IB/IC
Answer is :- IC/IE
14. Compared to bipolars, FETs have-
a) high input impedance
b) low input impedance
c) same input impedance
d) none
Answer is :- high input impedance
15. The source-drain channel of JFET is -
a) ohmic
b) bilateral
c) unilateral
d) both a and b
Answer is :- both a and b
16. diac is equivalent to a -
a) Pair of SCRs
b) Pair of four layer SCRs
c) Diode and two resistors
d) Triac width
Answer is :- Pair of four layer SCRs
17. When a sample of N type semiconductor has electron density of 6.25 ´ 1011 /cm3 at 300K and if the intrinsic concentration of carriers in this sample is 2.5 ´ 1013/cm3 then the hole density will be –
a) 106/cm3
b) 103/ cm3
c) 1010/ cm3
d) 1012/ cm3
Answer is :- 103/ cm3
18. The statement ‘In any network of linear impedances, the current flowing at any point is equal to the algebraic sum of the currents caused to flow at that point by each of the sources of emf taken separately with all other emf’s reduced to zero’ represents -
a) Kirchhoff’s law
b) Norton’s theorem
c) Thevenin’s theorem
d) Superposition theorem
Answer is :- Superposition theorem
19. One of the following modes which has the characteristics of attenuation becoming less as the frequency is increased and is attractive at icrowave frequencies of circular cylindrical wave guides is –
a) TE1 mode
b) TM01 mode
c) TE01 mode
d) Higher order mode
Answer is :- TE01 mode
20. A two-port network is symmetrical if –
a) z11z22 – z12z21 = 1
b) h11h22 – h12h21 = 1
c) AD – BC = 1
d) y11y22 – y12y21 = 1
Answer is :-AD – BC = 1
21. For transmission line load matching over a range of frequencies, it is best to use a-
a) balun
b) broad band directional coupler
c) double stub
d) single stub of adjustable position
Answer is :- double stub
22. The poles and zeros of a driving point function of a network are simple and interlace on the negative real axis with a pole closest to the origin. It can be realised -
a) by an LC network
b) as an RC driving point impedance
c) as an RC driving point admittance
d) only by an RLC network
Answer is:- only by an RLC network
23. Poles and zeros of a driving point function of a network are simple and interlace on the jw axis. The network consists of elements –
a) R and C
b) L and C
c) R and L
d) R, L and C
Answer is :- L and C
24. For a two port reciprocal network, the output open circuit voltage divided by the input current is equal to –
a) B
b) Z12
c) —
d) h12
Answer is :- Z12
25. In a short electric doublet the radiation properties are so that-
a) The induction field diminishes as the square root of the distance and is only appreciable in the vicinity of the conductor.
b) In the radiation, magnetic field is minimum when the current is maximum.
c) The radiation resistance of a short doublet antenna is extremely high.
d) Mean rate of power through a unit area of spherical sphere surrounding this doublet is proportional to the square of the elemental length, other factors remaining constant.
Answer is :-Mean rate of power through a unit area of spherical sphere surrounding this doublet is proportional to the square of the elemental length, other factors remaining constant.
26. The frequency modulated (FM) radio frequency range is nearly -
a) 250 –300 MHz
b) 150 – 200 MHz
c) 90 – 105 MHz
d) 30-70 MHz
Answer is :-90 – 105 MHz
27. In an underground cable the distortion in the transmission of carrier frequency can be eliminated by using -
a) Inductive loading
b) Resistive loading
c) Capacitive loading
d) Shielding
Answer is :- Inductive loading
28. The characteristic impedance of a transmission line with inductance 0.294 mH /m and capacitance 60 pF/m is -
a) 49 W
b) 60 W
c) 70 W
d) 140 W
Answer is :- 70 W
30. For a quarter wavelength ideal transmission line of characteristic impedance 50 ohms and load impedance 100 ohms, the input impedance will be –
a) 25W
b) 50W
c) 100W
d) 150W
Answer is :- 25W
31. The depth of penetration or skin depth for an electromagnetic field of frequency ‘f’ in a conductor of resistivity r and permeability m is-
a) inversely proportional to r and f and directly proportional to m
b) directly proportional to r and inversely proportional to f and m
c) directly proportional to f and inversely proportional to r and m
d) inversely proportional to r and m and directly proportional to f
Answer is :- directly proportional to r and inversely proportional to f and m
32. When an antenna has a gain of 44dB then assuming that the main beam of the antenna is circular in cross-section the beam width will be -
a) 0.4456 0
b) 1.44560
c) 2.44560
d) 3.44560
Answer is :- 2.44560
33. Lens antennas used for microwaves are usually made of -
a) Polystyrene
b) Glass of low refractive index
c) Paraboloid surfaces
d) Dielectric media having large refractive index
Answer is :- Polystyrene
From Placement Papers, post BSNL JTO Exam paper
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sir,
please send me the next exam date for jto exam.
and please send me the previous exam papers with solutions.
also suggest me any textbook & e-book for prepration of jto exam
Dear sir i am preparing for the BSNL JTO Exam 2009.
i have completed computer sci & engg diploma & appearing the last year (BE)of degree course.
sir want to know all information about jto exam & when exam is conducted for year 2009.
dear sir,
please inform me when will be the result for the exam which held on feb 15 for the post of junior telecom officers 2008
hello sir
I am preparing for the bsnl jto exam 2009.
I am EcE student,please suggest me some standard book for bsnl preparation. please send to my mail.mail id is hema_snow3@yahoo.com
hi my name is anubhav saxena.i am vendor in bsnl.i am joining in bsnl.please help me.please leave amessage my email id.i appearing graduation kanpur university.this is my last year.
thank you
anubhav saxena
559kha/299,shri nagar
alambagh lucknow
sir, I am BE in electronics & telecommunication branch. i missed last date of form submission of jto exam 2008. please can you tell me is there will be this exam in 2009, propable month? Is their any other exam related with goverment or semigoverment jobs like this. I am awaiting of your responce.
please send me the syllabus for B.Tech Information technology student
Plz send me the pld papers of BSNL TTA Exam.
I will be thankful to you.
Dear sir i am B.E final year student.My Branch is E and C.
i want to prepare for bsnl jto exam 2009.sir can u sent me exam date and which me referred the book name which will help me the best and can u sugest me how to get through d exam and
BSNL JTO 2008 Question paper send my mail Id
Thanks u sir
hello sir, please send me the book namewhich will help me to get the job surely.
sir,my kind request is that plzzz send me the jto old question papers and some important questions which are required for jto examination
plz seend me whole procedure of jto exam its syllabus around how much seats are allocated for gujarat old papers etc ur responce means a lot to me
Sir I am an ECE student,going to passout in 2009.Would you kindly inform me about the probable dates of notification of jto2009 at altiger07@gmail.com,where would I find the detailed information or ad like whether on net or in the dailies,also do suggest me some good books available in the market for the preparation.
Dear sir i am preparing for bsnl jto exam 2008.
Iam B.Tech in Information Technology.Iam confused which book to consult.Please send me the book name which will help me the best.please send the book name to my mail.
plz reply
sir plz i need to know when is the next exam going to be conducted…
Dear sir,
I am D.Chandra kumar chakma and i ve passed out in the year 2008 may-june.I was waiting to know if there is JTO exam in 2009.pls kindly inform me..
Thank you sir.
Dear sir i am preparing for the bsnl jto exam 2008
sir iam ece student,sir can u send me the previous question papers ,and can u sugeest me how to get through the exam …………..
thanking u sir,
you providing these papers
its good
please any one can tell me which book should i refer for JTO preparation . if you know any side for model paper please send on my e-mail id…
thank you..
Dear sir i am preparing for the bsnl jto exam 2007
sir iam ece student,sir can u send me the previous question papers ,and can u sugeest me how to get through the exam …………..
thanking u sir,
Sir , I am B.Tech in E.C.E. , I am appearing for BSNL JTO 2009 ,can u please help me which books shold follow for Power Electronics & Microwave .Please mail to me , i would always be thankful of u ….
Please Help me By sending jto old questions with answers
with out answers how i can test my self sir put answers
Dear sir i am preparing for the BSNL JTO Exam 2009
Sir Iam a B.E Passout Student in 2006 i am confused which book to cosult.
please send me the book name which will help me the best.
BSNL JTO(telicom)2009 Question paper send my mail Id
Thanking in Anticipation
Dear sir i am preparing for the BSNL JTO Exam 2009.
Sir Iam a B.E Passout student(computer).
please sugest
hi sir
please can u send me Exact Syllabus for Computer Science student ..and if u provide me also old paper
thanks in Advance
hi sir
please can u send me Exact Syllabus for Computer Science student ..and if u provide me also old paper om following address yash.porwal@gmail.com
thanks in Advance