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