Skip to main content

Computing & Informatics - true/false type questions from AMIE exams

Yes/No type questions.
  1. A variable of type char can be used to store the integer 101.
  2. A variable defined within a function is visible to all functions onwards from its point of definition.
  3. The element referred to by array Example [5] is the sixth element of the array.
  4. The binary representation of the decimal number 45.25 is 101101.1101.
  5. The hard disk is also known as the main memory of a computer system.
  6. A minimum of four computers is required to establish a LAN.
  7. The secondary memory of a computer is also known as volatile memory.
  8. A management information system is an example of a system program.
  9. Application programs are easier to write compared to system programs.
  10. MS-DOS is an example of a virtual memory op crating system.
Answers
  1. Yes. In a variable of type char up to 256 (unsigned) can be stored as 1-byte memory space is allocated for char type variable.
  2. No. A variable defined within a function is visible only within the function (local variable). If a variable is to be visible for all functions (Global variable), it must be defined at the top of the programs.
  3. Yes. Example [5] is the sixth element because array numbering starts from 0. There are five elements ahead of Example [5]. They are Example [0], Example [1].............Example [4].
  4. False. It is (101101.01)2
  5. No. The Main memory of a computer refers to the semiconductor primary memory which is generally a DRAM. 
  6. No. A LAN can be established even using two computers.
  7. No. Volatile memory refers to the memory whose contents are lost upon power-off condition. Secondary memories are permanent storage devices and do not lose data when power is off.
  8. No. MIS is application software. System software helps users use the computer in a friendly manner. They include compiler. assembler, linker, loader, operating system etc.
  9. Yes. To write an application program hardware knowledge is not essential. To write system software-hardware knowledge is essential.
  10. No DOS does not support virtual memory UNIX support virtual memory.
---
The study material for AMIE/B Tech/Junior Engineer exams is available at https://amiestudycircle.com

Labels:

Comments

Post a Comment

Popular posts from this blog

Mechanics of Fluids (Solved Numerical Problems)

Numerical The surface Tension of water in contact with air at 20°C is 0.0725 N/m. The pressure inside a droplet of water is to be 0.02 N/cm² greater than the outside pressure. Calculate the diameter of the droplet of water. (7 marks) (AMIE Summer 2023) Solution Surface tension, σ = 0.0725 N/m Pressure intensity, P = 0.02 N/m 2 P = 4σ/d Hence, the Diameter of the dropd = 4 x 0.0725/200 = 1.45 mm Numerical Find the surface tension in a soap bubble of 40 mm diameter when the inside pressure is 2.5 N/m² above atmospheric pressure. (7 marks) (AMIE Summer 2023) Answer: 0.0125 N/m Numerical The pressure outside the droplet of water of diameter 0.04 mm is 10.32 N/cm² (atmospheric pressure). Calculate the pressure within the droplet if surface tension is given as 0.0725 N/m of water. (AMIE Summer 2023, 7 marks) Answer: 0.725 N/cm 2   Numerical An open lank contains water up to a depth of 2 m and above it an oil of specific gravity 0.9 for a depth of 1 m. Find the pressure intensity (i) at t...
Post a Comment
Read more

Design of Electrical Systems (Solved Numerical Problems)

Important note There is something wrong with this question paper. It seems that instead of "Design of Electrical Systems" the IEI has given problems from "Electrical Machines". You should raise a complaint to director_eea@ieindia.org in this regard. Numerical A 120 V DC shunt motor draws a current of 200A. The armature resistance is 0.02 ohms and the shunt field resistance is 30 ohms. Find back emf. If the lap wound armature has 90 slots with 4 conductors per slots, at what speed will the motor run when flux per pole is 0.04 Wb?​ (AMIE Summer 2023, 8 marks) Solution The back EMF (E b ) of a DC motor can be calculated using the formula: E b = V - I a R a   Given: V = 120 V I a = 200 A R a = 0.02 ohms Substituting the values into the formula: E b = 120 − 200 × 0.02 = 120 − 4​ = 116 V Now, let's calculate the speed (N) at which the motor will run using the given flux per pole (φ p ). The formula to calculate the speed of a DC motor is: N = 60×E b /(P×φ p ) Wh...
Post a Comment
Read more

Energy Systems (Solved Numerical Problems)

Wind at 1 standard atmospheric pressure and \({15^0}C\) has velocity of 15 m/s, calculate (i) the total power density in the wind stream (ii) the maximum obtainable power density (iii) a reasonably obtainable power density (iv) total power (v) torque and axial thrust Given: turbine diameter = 120 m, and turbine operating speed = 40 rpm at maximum efficiency. Propeller type wind turbine is considered. (AMIE Winter 2023) Solution For air, the value of gas constant is R = 0.287 kJ/kg.K 1 atm = 1.01325 x 105 Pa Air density \(\rho  = \frac{P}{{RT}} = \frac{{1.01325x{{10}^5}}}{{287}}(288) = 1.226\,kg/{m^3}\) Total Power \({P_{total}} = \rho A{V_1}^3/2\) Power density \(\begin{array}{l}\frac{{{P_{total}}}}{A} = \frac{1}{2}\rho {V_1}^3\\ = \frac{1}{2}(1.226){(15)^3}\\ = 2068.87{\mkern 1mu} W/{m^2}\end{array}\) Maximum power density \(\begin{array}{l}\frac{{{P_{\max }}}}{A} = \frac{8}{{27}}\rho A{V^3}_1\\ = \frac{8}{{27}}(1.226){(15)^3}\\ = 1226{\mkern 1mu} W/{m^2}\end{array}\) Assuming eff...
Post a Comment
Read more