Bharat Sanchar Nigam Limited is an Indian state-owned telecommunications company headquartered in New Delhi, India.

Every year Bharat Sanchar Nigam (BSNL) thousands of TTA candidates from allover the country

BSNL TTA Exam Syllabus ;

Mode of selection and nature of question paper

There shall be only one paper of multiple choice objective type of three hours duration as per the following details

Part- I
General Ability Test 20-Marks

Part-II
Basic Engineering 90-Marks

Part-III
Specialisation 90-Marks

The total number of questions in the paper shall be 200 and each question shall carry one marks.

S.No Type of Exam Subjects No. of Questions Marks Time Duration
1. Written Test General Ability 20 20 3 Hrs
Basic Engineering 90 90
Specialization 90 90
Total 200 200


Here I am Providing Previous year BSNL TTA Exam Paper :

Question 1. A rectangle has width a and length b. If the width is decreased by 20% and the length is increased by 10%, what is the new area of the rectangle?

a) 0.9 ab

b) 0.92 ab

c) 0.74 ab

d) None of the above

Answer: None of the above

Question 2. Two men, Mohit and Neerej started walking towards each other, simultaneously from places P and Q respectively, which are 72 miles apart. They met after 6 hours. After their meeting, Mohit reduced his speed by 1 mile/h and Neerej increased by 1 mile/h. They arrived at Q and P respectively at the same time. Find their initial speeds :

a) 6 ½ miles/h and 7½ miles/h

b) 6 miles/h and 7 miles/h

c) 6.5 miles/h and 5.5 miles/h

d) 15 ½ miles/h and 9 miles/h

Answer: 6.5 miles/h and 5.5 miles/h

Question 3. Answer the questions on the basis of information giver below. Six persons A, B, C, D, E and F are photographer, engineer, lawyer, housewife, waiter and journalist, not necessarily in that order. There are two married couples in the group who stay together
A is married and his wife is a housewife.
B, the lawyer is married to the photographer sister of A.
D is the brother of C, who is not the housewife.
E, the journalist has taken a vow of never getting married.
The waiter is engaged to his girlfriend.

Who is the wife of B?

a) E

b) F

c) D

d) C

Answer: C

Question 4. By which of these nicknames is Nagpur also known as?

a) Diamond City

b) Orange City

c) Pink City
d) City of Lakes

Answer: Orange City

Question 5. Which of these is a traditional Sikh Maritial Art named after a stick used to practice sword fighting?

a) Gatka

b) Hola Mohalla

c) Shakhl

d) Kakaar

Answer: Gatka

Question 6. Maulana Abul Kalam Azad’s Birthday on 11 November is celebrated in India as what?

a) National Education Day

b) National Integration Day

c) National Minority Day

d) National Sports Day

Answer: National Education Day
Question 7. When lines intersect on a drawing at angles of this many degrees, it is customary not to dimension the angle:

a) 360

b) 180

c) 90

d) 45

Answer: 90

Question 8. At which of the following places Diesel Component Works is established?

a) Jamshedpur

b) Patiala

c) Perambur

d) Varanasi

Answer: Patiala

Question 9. The All Women Expedition Team of the Indian Air Force which scaled the Mount Everest some time back was headed by

a) Sqn. Ldr. D. Panda

b) Sqn. Ldr. Nirupama Pandey

c) Flt. Lt. Nivedita Choudhary

d) Flt. Lt. Rajika Sharma

Answer: Sqn. Ldr. Nirupama Pandey

Question 10. When was the Indian Constitution adopted?

a) 15th August, 1947

b) 26th November, 1949

c) 26th January, 1950

d) 2nd October, 1952

Answer: 26th November, 1949

Question 11. If the Prime Minister of India submits his resignation to the President, it will mean the resignation of the

a) Prime Minister only

b) Prime Minister and the Cabinet Ministers

c) Entire Council of Ministers

d) Prime Minister, Cabinet Ministers and the Speaker

Answer: Entire Council of Ministers

Question 12. A man standing at a point P is watching the top of a tower, which makes an angle of elevation of 30º with the man’s eye. The man walks some distance towards the tower to watch its top and the angle of the elevation becomes 60º. What is the distance between the base of the tower and the point P?

a) 4√3 units

b) 8 units

c) 12 units

d) Data inadequate

e) None of these

Answer: Data inadequate

Question 13. For safety, the fuse wire used in the mains for household supply of electricity must be made of metal having

a) Low Melting Point

b) High Resistance

c) High Melting Point

d) Low Specific Heat

Answer: Low Melting Point

Question 14. Durand Cup is associated with the game of

a) Cricket

b) Football

c) Hockey

d) Volleyball

Answer: Football

Question 15. Hamid Karzai was chosen president of Afghanistan in

a) 2000

b) 2001

c) 2002

d) 2003

Answer: 2002

16. The centre of the circle x2 + 6x - 4y + y2 + 12 = 0 will be at
(a) (-3, 2)
(b) (3, -2)
(c) (-2, 3)
(d) (2, -3)

17. The product of (3 + 4j) and its conjugate is
(a) 7
(b) 25
(c) 12
(d) 21

18. During charging of a lead acid cell, the specific gravity of electrolyte will
(a) Increase
(b) Decrease
(c) Remain constant
(d) Increase then Decrease

19. The decimal number '12' is represented in binary system as
(a) 1100
(b) 0110
(c) 1010
(d) 1110

20. What is the value of current that will flow when a p. d. 200 V is applied across a circuit of 50 O resistance?
(a) 4 A
(b) 0.4 A
(c) 10 A
(d) 1 A

21. If both the inputs to a Nand Gate are '1', the output would be
(a) 1
(b) 0

22. If input 'A' is 1 and input 'B' is 0, then output X will be
<image>
(a) 0
(b) 1

23. The truth-table of a Nand Gate is
(a)
A B X
0 0 1
0 1 1
1 0 1
1 1 0
(b)
A B X
0 0 0
0 1 0
1 0 0
1 1 1
(c)
A B X
0 0 0
0 1 1
1 0 0
1 1 1
(d) None of these

24. IC chip is usually made of
(a) Lead
(b) Silicon
(c) Chromium.
(d) None of these.

25. Below given network is connected to a 16 V battery with internal resistance of 1 O. What will be current drawn from the battery?
<image>
(a) 2 A
(b) 3 A
(c) 12/7 A
(d) 7/12 A

26.Determine the equivalent resistance of the following network:
<image>
(a) 6 O
(b) 12 O
(c) 3 O
(d) 9 O.

27. A Zener diode is
(a) Forward biased heavily doped silicon p-n junction
(b) Reversed biased heavily doped silicon p-n junction
(c) Forward biased diode operating at breakdown point
(d) Is used as rectifying device

28. Crystal oscillator is used when frequency required is
(a) High
(b) Low
(c) Constant
(d) Varying.

29. What is the energy in a quantum of radiation having a wave length of 5000 A?
(a) 3.98 x 10-19 J
(b) 3.98 x 10-9 J
(c) 2.9 x 10-19 J
(d) 7.9 x 10-19 J.

30. Which of these cannot store energy?
(a) Capacitor
(b) Inductor
(c) Resistance
(d) LC circuit.

31. A short bar of magnet placed with its axis at 300 with a uniform external magnetic field of 0.16 T experiences a torque of magnitude 0.032 J. What is the magnetic moment of the magnet?
(a) 0.40 JT-1
(b) 4.0 JT-1
(c) 0.04 JT-1
(d) 0.2 JT-1

32. The total force on a charge 'q' with velocity "V" in an electric field 'E' and magnetic field 'B' will be
(a) q (E + V x B)
(b) q(E + V.B)
(c) qE + VxB
(d) q(B + V x E)

33. The magnetic field B at the centre of a circular current loop of radius 'a' is given by
(a) B =µ0 I/2a
(b) B = µ0 I/a
(c) B = 2µ0 I/a
(d)B = µ0 a/2I

34. If f = x2 + 4xy + y2 + 9, then which of the following is not true:
(a) ?f/?x = 2x + 4y
(b) ?f/?y = 4x + 2y
(c) ?2f/?x2 = 2
(d) ?2f/?x?y = 4

35. A hollow metal ball 8 cm in diameter is given a charge of - 4 x 10-8 C. The potential on the surface of the ball is
(a) - 9000 V
(b) - 900 V
(c) - 90 V
(d) Zero.

36. The effective capacitance between X and Y is
<image>
(a) 8/3 µF
(b) 7/6 µF
(c) 5/6 µF
(d) 2 µF.

37. The amount of work done is joules in carrying a charge + Q alongwith path ABCD and back to A between two oppositely charged plates is:
<image>
(a) Q
(b) 4Q
(c)Q/2
(d) Zero.

38. How many electrons are contained in 1C?
(a) 6.25 x 1018
(b) 6.25 x 1019
(c) 6.25 x 1020
(d) 6.25 x 1021

39. The phase angle between voltage and current in an a. c. circuit through a pure capacitance is
(a) 180°
(b) 90°
(c) 60°
(d) 0°

40. The permeability of a material is 0.998. It is:
(a) Diamagnetic
(b) Paramagnetic
(c) Ferromagnetic
(d) Anti ferromagnetic.