BSNL TTA Online Mock 1

20 Questions | By Appliedjobz | Updated: Mar 21, 2022 | Attempts: 8867

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BSNL TTA Online Mock 1 The Questions give you a fair idea of the BSNL TTA Exam Question Paper Pattern and help you prepare better. The written examination consists of objective type paper including 3 parts that are as follows: General Ability Test 20 questions 20 marks Basic Engineering 90 questions 90 marks Professional Knowledge 90 questions 90 marks However Contemporary Test contains only 20 Question and Full Mock will available for Registered Users Total Question 20 &nbs

Questions and Answers

1.

Which one of the following is not a permanent magnetic material ?
- A.
  
  Chromium Steel
- B.
  
  Silicon Iron
- C.
  
  Cobalt Steel
- D.
  
  Alnico
2.

Fermi level in a P-type semiconductor lies to_______________.
- A.
  
  The top of the valance band
- B.
  
  The bottom of the valance band
- C.
  
  The top of the conduction band
- D.
  
  The bottom of the conduction band
3.

Above the Curie temperature ferromagnetic material behave like
- A.
  
  Paramagnetic
- B.
  
  Diamagnetic
- C.
  
  Antiferromagnetic
- D.
  
  Ferrimagnetic
4.

Metallic Copper is a _____________.
- A.
  
  Paramagnetic substance
- B.
  
  Diamagnetic substance
- C.
  
  Ferromagnetic substance
- D.
  
  Ferrimagnetic substance
5.

The Magnetic field required to reduce the residual magnetisation to zero is called ________.
- A.
  
  Retentivity
- B.
  
  Coercivity
- C.
  
  Hysteresis
- D.
  
  Saturation magnetisation
6.

The Circuit shown below act as a
- A.
  
  Low pass filter
- B.
  
  Band pass filter
- C.
  
  High pass filter
- D.
  
  Band rejection filter
7.

The low pass and high pass filter acts as respectively
- A.
  
  Differentiator (both)
- B.
  
  Integrator, differentiator
- C.
  
  Differentiator, Integrator
- D.
  
  Integrator (both)
8.

A delay equalizer is a
- A.
  
  High pass filter
- B.
  
  Low pass filter
- C.
  
  Band pass filter
- D.
  
  All pass filter
9.

A tank circuit is a ____________.
- A.
  
  Series RC circuit
- B.
  
  Parallel LC circuit
- C.
  
  Series LC circuit
- D.
  
  Parallel RC circuit
10.

In SSB transmitter ,one is most likely to find a
- A.
  
  Class c audio amplifier
- B.
  
  Class B RF amplifier
- C.
  
  Class A RF amplifier
- D.
  
  Tuned modulator
11.

The number of unattainable tone has a frequency of
- A.
  
  100 cps.
- B.
  
  400 cps.
- C.
  
  33 cps.
- D.
  
  50 cps.
12.

Modem is name for
- A.
  
  Demodulator in a communiaction line
- B.
  
  Modulator in a communiaction line
- C.
  
  Modulator and demodulator
- D.
  
  None of these
13.

Bridge Duplex works on the principle of
- A.
  
  Resistance balance
- B.
  
  Potential balance
- C.
  
  Current balance
- D.
  
  None of these
14.

Refraction of the radio waves in the atmosphere occurs because
- A.
  
  Density of air changes
- B.
  
  Dielectric constant changes
- C.
  
  Dielectric and refractive index changes
- D.
  
  None of these
15.

Dial tone has a frequency of
- A.
  
  33 cps.
- B.
  
  100 cps.
- C.
  
  400 cps.
- D.
  
  50 cps.
16.
Match List 1 and List II and select the correct answer List 1 List II
1. Ashoka's Son A. Brihadratha
2. Conqueror of Yarkand B. Ashvaghosha
3. Buddhist Monk C. Kanishka
4. Last Mauryan ruler D. Kunala
Code : 1 2 3 4
- A.
  
  A B C D
- B.
  
  D C B A
- C.
  
  C A D B
- D.
  
  B A C D
17.

The Author of the "The Periplus of the Erythraean Sea' was a
- A.
  
  Historian
- B.
  
  Poet
- C.
  
  Sailor
- D.
  
  Musician
18.

During Karikala's rule the important Chola port was
- A.
  
  Calicut
- B.
  
  Puhar
- C.
  
  Korkai
- D.
  
  Thondi
19.

(Direction 19-20.) Choose the correct Synonym for the word Given below Affluent
- A.
  
  Prosperous
- B.
  
  Poor
- C.
  
  Talkative
- D.
  
  Close
20.

(Direction 19-20.) Choose the correct Synonym for the word Given below Limp
- A.
  
  Kneel
- B.
  
  Bend
- C.
  
  Falter
- D.
  
  Stoop