IECEP COMPILATION GEAS

IECEP COMPILATION

Ans. steady flow

1.These are simple abstract computational devices intended to help investigate the extent and limitations of what can be computed.

10. If the process can be stopped at any stage and reverse so that the system and surroundings restored to their initial states, it is known as

Ans. Turing Machines Ans. energyless process 2. It is a search technique inspired by biological and evolutionary behavior utilizing a population of chromosomes that represents the search space and determining their fitness by a certain criterion.

11. During a throttling process Ans. enthalpy does not change 12. Internal energy of a perfect gas depends on

Ans. Genetic Algorithm Ans. temperature only 3. It recommends interference protection ratios (IPR) for both analog and digital television in co-channel operation.

13. When an object is in translational equilibrium, which of these statements in not true?

Ans. ITU-R BT.1368 Ans. the object must be stationary 4. A collision where both energy and momentum are conserved

14. A friction force is a

Ans. Inelastic collision

Ans. a contact force that acts parallel to contact surface

5. It is produced when a force is applied tangentially to a surface area.

15. A family of compounds produced commercially by chlorinating biphenyl.

Ans. Shear stress 6. What happens to the temperature and thermal energy of a substance during a change of state? Ans. The temperature of a substance remains constant, while the thermal energy changes 7. Who was the first to make a wireless telegraph using the technology? Ans. Guglielmo Marconi 8. The temperature at which the polymer experiences the transition from rubbers to rigid states. Ans. Glass transition temperature 9. If all the variables of a stream are independent of the time it is said to be in

Ans. Chemical structure of Polychlorinated Biphenyls (PCBS) 16. The most straightforward model to describe the disinfection process Ans. Chick’s Law 17. The relations between stresses that are compatible with the deformations produced by a specified load, plus the application of Hooke’s law called, Ans. Equations of compatibility 18. Principle expresses the relation between the external forces applied to a system of particles and the effective force of each particle of the system called, Ans. D’Alembert’s Principle

19. Experimental method of determining the approximate molecular mass of vapors, conveniently used in determining the molecular mass of volatile liquid. Ans. Victor Meyer’s method 20. What is equal to the change in angular momentum if the angular impulsemomentum for plane motion applies to the rotation effects caused by the impressed forces?

Ans. Hierarchy of Human Needs 27. It is a regenerative thermodynamic power cycle using two isothermal and two constant volume processes. Ans. Stirling cycle 28. The third law of thermodynamics is also known as: Ans. Nernst heat theorem

Ans. resultant angular

29. A closed system that operates in cycles and exchanges only heat and work with its surroundings is known as:

21. This effect is present whenever a body that rotates about one of its axes also rotates about another axis not parallel to the first one.

Ans. Heat engine or thermal engine

Ans. Gyroscope 22. What theorem states that the moment of a force is equivalent to the sum of the moments of the components? Ans. Varignon Theorem 23. Dynamic phenomenon that takes place in a molecule as a bonding occurs. Ans. Resonance 24. In Herzberg’s two-factor theory, what are the two factors being identified? Ans. Growth and Maintenance, Content and Context and Motivators or Hygiene Factors 25. Which of the following is not true about perfect competition? a. Assurance of complete freedom in the part of both buyer and seller. b. There is no restriction on additional suppliers entering the market. c. The buyer is at the complete mercy of the supplier in terms of availability and price of the product. d. both a and b

26. A general theory of human motivation investigated by Morshow which identifies the levels of human needs.

30. ___ is the process by which the carbon content of the steel is increased Ans. .Carburising 31. Hardening is always followed by _____ in order relieve the residual stresses an improve the ductility and toughness of the hardened steel Ans. Tempering 32. It is used for calculating the amount phases in any two phase region of a binary phase diagram? Ans. Lever Rule 33. The major effect of the Copper as an alloying element in steel is Ans. It improves its corrosion resistance 34. It is a process used to eliminate cored structure in an alloy? Ans. Homogenisation 35. A hardness test that measured based on the depth of indention and not on the surface area that lies on the principle that hardness varies inversely to the depth of the penetration Ans. Rockwell Hardness Test 36. Hardness of a material may be defined based on the hardness testing method. The hardness

that is indicated by the measure of the resistance offered by a material to plastic deformation is _______ Ans. Indention Hardness 37. ______ involves heating to a predetermined temperature, holding at that temperature and then cooling at a very slow rate. Ans. Annealing 38. The principal source of information in the actual process of autenite under non-equilibrium condition as a ______

b. To improve high temperature properties c. To increase wear resistance d. To improve malleability 45. The intermetallic compound iron carbide is called ________ Ans. Cementite 46. The purpose of tempering is ________ Ans. relieves residual stresses and improves ductility and toughness of the hardened steel

Ans. TTT Diagram

47. In the Iron-Iron carbide diagram, the alloys containing solid phase with more that 2% carbon are known as ______

39. Any steel heated to a particular temperature above the critical temperature results in the formation of ______

Ans. Cast iron

Ans. Austenite 40. Additives are compounds which are added to a polymer to modify and improve certain properties. Plasticizers are added to polymers in order to ___________. Ans. Improve its softness and flexibility 41. _____ is the combination of operation involving the heating of metal/alloy in solid state and cooling it to obtain the desired properties Ans. Heat Treatment 42. The molecular chain structure is another factor responsible for the strength and rigidity of polymers. The chain structure where mer units are joined together end to end in a single chain is called _______ Ans. Liners polymers 43. Cast iron that contains more than 4.3%C is known as ________ Ans. Hypereutectiod Cast Iron 44. The following are the reasons why alloying elements are added to carbon steel except:

a. Increase hardenability

48. In Quenching process, heat is removed in three stages, in the first stage, the surface of the work piece comes into contact with the quenchant. This stage is called ________. Ans. Vapour Blanket Stage 49. Liquid iron starts solidifying at ___degC. Ans. 1540degC 50. What theorem relates the line integral of a vector field around a simple closed curve C is in IR3 to an integral over surface S for w/c C is the boundary? Ans. Stokes Theorem 51. It states that two images are just resoluable when the center of diffraction disk of one is directly over the first minimum in the diffraction pattern of the other Ans. Rayleigh criterion 52. What is the expression of the magnitude and direction of the lattice distortion associated with dislocation? Ans. Burgers Vector 53. What is an impulse commutated inverter which relies on LC circuit and on auxilary thyristor for commutation in the load circuit?

Ans. Auxiliary commutated inverter

Ans. Class C

54. What is formed on the screen of cathode ray oscilloscope when two sine wave voltages are simultaneously applied to the two sets of deflection plates?

63. _____ are nuclei with the same number of neutrons N but different numbers of protons Z.

Ans. Lissajous pattern 55. It is a graph of a sample values plotted on the x-y plane. Ans. Scatter diagram 56. A theorem which states that under very general conditions, the distribution of the sum of a large number of independent random variables is assymptotically normal, regardless of the distribution of the individual variables. Ans. Central Limit Theorem 57. What is the unit of radiation which takes into account its biological effects? Ans. Millirem 58. How many million tons of hydrogen are converted into helium every second at the sun? Ans. 700 million tons 59. Who is called the father of modern science precisely because he initiated the comparison between theory and experiment? Ans. Galileo 60. According to ________________, all objects radiate energy, no matter what their temperature happens to be. Ans. Stefan – Boltzmann Law 61. Which of the following element does not belong to the same group / family? A. Carbon (C) B. Copper (Cu) C. Tin (Sn) D. Lead (Pb) 62. Electrical fires are referred to as Class ____ fires

Ans. Isotones 64. Which of the following ionising radiation has no mass and charge? Ans. Gamma 65. In passive solar heating, longwave infrared radiation Ans. comes from the sun, passes through the window glass, and is changed to shortwave infrared when it is absorbed by lightcolored walls and furniture.