Top 25 AFCAT EKT 2 2017 MCQs for CSE IT Branch

In this article we will see latest 25 questions that are important for AFCAT technical branch applicants from Btech/B.E of computer science (and related) or information technology (and related) streams.


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Top 25 AFCAT EKT 2 2017 MCQs for CSE IT Branch

(1) All of the following alloying elements of steel increase hardness but sacrifice ductility, except
a. nickel
b. vanadium
c. molybdenum
d. chromium
(2) To make antenna more directional, either its size must be increased or
a. the number of its feed horns must be increased
b. the frequency of its transmission must be increased
c. its effective isotropic radiated power (eirp) must be increased
d. its footprint must be increased
(3) A transponder is a satellite equipment which
a. receives a signal from earth station and amplifies
b. changes the frequency of the received signal
c. retransmits the received signal
d. does all of the above-mentioned functions
(4) If the resistance in a circuit with constant voltage increases, the current will
a. increase
b. decrease
c. stay the same
d. Not enough information
(5) If doubling the voltage across a resistor doubles the current through the resistor then
a. the resistor value decreased
b. the resistor value did not change
c. the resistor value increased
d. it is impossible to determine the change in the resistor value
(6) A voltage will influence current only if the circuit is
a. open
b. insulated
c. high resistance
d. closed
(7) The most abundant rare gas in the atmosphere is
a. He
b. Ne
c. Ar
d. Xe
(8) The most electro-negative element among the following is
a. sodium
b. bromine
c. fluorine
d. oxygen
(9) Sound produced at a point is heard by a person after 5 seconds, while the same sound is heard by another person after 6 seconds. If the speed of sound is 300 m/s, what could be the maximum and minimum distances between the two persons?
a. 1.8 km, 0.15 km
b. 2.2 km, 0.20 km
c. 2.8 km, 0.25 km
d. 3.3 km, 0.30 km
(10) Out of the following pairs, choose the pair in which the physical quantities do not have identical dimension?
a. Pressure and Young’s modules
b. Planck’s constant and Angular momentum
c. Impulse and moment of force
d. Force and rate of change of linear Momentum
(11) A hard disk is divided into tracks which are further subdivided into
a. clusters
b. sectors
c. vectors
d. heads
(12) Which of the following is used to hold ROM, RAM, CPU and expansion cards?
a. computer bus
b. motherboard
c. cache memory
d. all of the above
(13) The register which contains the instruction that is to be executed is known as
a. Index register
b. Instruction register
c. Memory address register
d. Memory data register
(14) An adder in which the bits of the operands are added one after another is
a. half-adder
b. full-adder
c. serial adder
d. all of the above
(15) Which of the following memories must be refreshed many times per second?
a. static RAM
b. dynamic RAM
d. ROM
(16) Which of the following services use TCP?
(i) DHCP (ii) SMTP (iii) HTTP (iv) TFTP (v) FTP
a. (i) and (ii)
b. (ii), (iii) and (v)
c. (i),(ii) and (iv)
d. (i), (iii) and (iv)
(17) A combinational logic circuit which is used when it is desired to send data from two or more source through a single transmission line is known as
a. encoder
b. decoder
c. multiplexer
d. demultiplexer
(18) Which is the computer memory that does not forget?
a. ROM
b. RAM
d. All of the above
(19) A computer program consists of
a. system flowchart
b. program flowchart
c. algorithms written in computer’s language
d. discrete logical steps
(20) What is the name of the technique in which the operating system of a computer executes several programs concurrently by switching back and forth between them?
a. Partitioning
b. Multitasking
c. Windowing
d. Paging
(21) What logic function is obtained by adding an inverter to the inputs of an AND gate?
a. OR
c. XOR
d. NOR
(22) Which of the following is not a logical data-base structure?
a. tree
b. relational
c. network
d. chain
(23) Frames from one LAN can be transmitted to another LAN via the device
a. Router
b. Bridge
c. Repeater
d. Modem
(24) The function of CPU is
a. to provide a hard copy
b. to read, interpret and process the information and instruction
c. to communicate with the operator
d. to provide external storage of text
(25) A program that converts computer data into some code system other than the normal one is known as
a. Encoder
b. Simulation
c. Emulator
d. Coding


1 Comment

  1. neelima

    hello sir/ mam its nice questions but what about key pleasa....

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