In this article we will see latest 25 questions that are important for AFCAT technical branch applicants from Btech/B.E of electronics communication (and related) or electrical electronics (and related) streams.
Top 25 AFCAT EKT 2 2017 MCQs for ECE/EC/EE/EEE Branch
| (1) The top, front, and bottom views align in this manner: |
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a. Horizontally |
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b. Vertically |
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c. According to the planar views |
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d. Parallel to the frontal plane |
| (2) Which of the following projection methods does not use projectors perpendicular to the projection plane? |
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a. isometric |
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b. orthographic |
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c. oblique |
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d. axonometric |
| (3) What is the relation between wavelength, frequency and velocity ? |
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a. velocity of wave = frequency * wavelength |
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b. velocity of wave = frequency/wavelength |
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c. velocity of wave = wavelength/frequency |
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d. None of above |
| (4) What are audible sound waves ? |
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a. Having frequency less than 20 Hz |
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b. Having frequency between 20 Hz to 20000 Hz |
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c. Having frequency more than 20000 Hz |
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d. None of above |
| (5) Which are the primary Colours ? |
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a. Yellow, Green, Blue |
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b. Red, Magenta, Blue |
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c. Red, Green, White |
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d. Red, Green, Blue |
| (6) Device used to measure potential difference between two points in a circuit is______ |
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a. Ammeter |
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b. Galvanometer |
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c. Voltmeter |
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d. None of above |
| (7) The area bounded by the parabola 2y=x2 and the lines x=y-4 is equal to ____. |
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a. 6 |
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b. 18 |
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c. Infinity |
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d. None of the above |
| (8) If at every point of a certain curve, the slope of the tangent equals -2x/y, the curve is ____. |
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a. A straight line |
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b. A parabola |
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c. A circle |
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d. An ellipse |
| (9) What is the average value of the function g(x) = (2x+3)2 on the interval from x = -3 to x = -1? |
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a. 7/3 |
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b. -4 |
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c. 5 |
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d. 3 |
| (10) If a function is continuous at a point its first derivative |
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a. May or may not exist |
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b. Exist always |
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c. Exists at infinity |
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d. Exist at unique value |
| (11) The function f(x) = ex is ___. |
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a. Even |
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b. Odd |
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c. Neither even or odd |
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d. None of the above |
| (12) The area enclosed between the parabola y=x2 and the straight line y=x is ___. |
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a. 1/8 |
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b. 1/6 |
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c. 1/3 |
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d. 1/2 |
| (13) A noiseless 3 KHz Channel transmits bits with binary level signals. What is the maximum data rate? |
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a. 3 Kbps |
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b. 6 Kbps |
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c. 12 Kbps |
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d. 24 Kbps |
| (14) What can greatly reduce TCP/IP configuration problems? |
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a. WINS Server |
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b. WINS Proxy |
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c. DHCP Server |
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d. PDC |
| (15) Usually, it takes 10-bits to represent one character. How many characters can be transmitted at a speed of 1200 BPS? |
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a. 10 |
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b. 12 |
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c. 120 |
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d. 1200 |
| (16) To connect a computer with a device in the same room, you might be likely to use |
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a. coaxial cable |
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b. dedicated line |
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c. ground station |
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d. All of the above |
| (17) Which of the following types of channels moves data relatively slowly? |
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a. wideband channel |
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b. voiceband channel |
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c. narrowband channel |
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d. broadband channel |
| (18) The geostationary satellite used for communication systems |
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a. rotates with the earth |
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b. remains stationary relative to the earth |
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c. is positioned over equator |
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d. All of the above |
| (19) What device separates a single network into two segments but lets the two segments appear as one to higher protocols? |
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a. Switch |
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b. Bridge |
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c. Gateway |
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d. Router |
| (20) An error-detecting code inserted as a field in a block of data to be transmitted is known as |
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a. Frame check sequence |
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b. Error detecting code |
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c. Checksum |
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d. flow control |
| (21) Sending a file from your personal computer’s primary memory or disk to another computer is called |
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a. uploading |
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b. downloading |
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c. logging on |
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d. hang on |
| (22) Transmission of computerised data from one location to another is called |
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a. data transfer |
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b. data flow |
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c. data communication |
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d. data management |
| (23) A central computer surrounded by one or more satellite computers is called a |
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a. bus network |
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b. ring network |
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c. star network |
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d. All of the above |
| (24) Slope overload” occurs in delta modulation when the |
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a. frequency of the clock pulses is too low |
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b. rate of change of analog waveform is too large |
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c. step size is too small |
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d. analog signal varies very slowly with time |
| (25) In frequency modulation |
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a. the frequency of the carrier remains constant |
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b. the amplitude of carrier remains constant |
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c. the amplitude of the carrier wave is varied |
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d. the frequency of the signal is made equal to the carrier frequency |
