ITI Electroplater Questions and Answers

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ITI Electroplater Questions and Answers

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MCQ Objective Electroplater Questions and Answers

1. A chemical reaction will occur spontaneously at constant pressure and temperature, if the free energy is:
(A) Zero
(B) +vE
(C) -VE
(D) None of these

2. Entropy is a measure of the ___________ of a system.
(A) Temperature changes only
(B) Disorder
(C) Orderly behavior
(D) None of these

3. Fundamental principle of refrigeration is based on the __________ law of thermodynamics.
(A) Second
(B) Zeroth
(C) First
(D) Third

4. Heating of water under atmospheric pressure is an _________________ process.
(A) Isochoric
(B) Adiabatic
(C) Isobaric
(D) Isothermal

5. Molten soap mass is transported by a _________ pump.
(A) Diaphragm
(B) Reciprocating
(C) Gear
(D) Centrifugal

6. Most commonly used joint in the underground pipe line is the:
(A) Sleeve joint
(B) Flanged joint
(C) Coupling
(D) Expansion joint

7. The fluid property due to which, mercury does not wet the glass:
(A) Cohesion
(B) Surface tension
(C) Viscosity
(D) Adhesion

8. Check valves are used:
(A) At high pressure
(B) For unidirectional flow
(C) in bends
(D) For controlling water flow

9. The ratio of inertial forces to elastic forces is called the __________ number.
(A) Reynolds
(B) Euler
(C) Mach
(D) Weber

10. Which of the following has the minimum absorptivity?
(A) Aluminium foils
(B) Coal dust
(C) Refractory bricks
(D) Iron plates

11. Mode of heat transfer involved in the cooling of air cooled internal combustion engine is:
(A) Conduction
(B) Forced convection
(C) Radiation
(D) Natural convection

12. Which of the following has maximum thermal conductivity?
(A) Coal
(B) Iron
(C) Nitrogen
(D) Tar

13. Open pan evaporators are preferred to be used, when the solution to be concentrated is:
(A) Scaling
(B) Salty
(C) Highly viscous
(D) Corrosive

14. Which of the following is most suitable for cold viscous feed?
(A) Forward feed
(B) Backward feed
(C) Mixed feed
(D) Parallel feed

15. Heat transfer occurs by natural convection because change in temperature causes difference in
(A) Viscosity
(B) Density
(C) Thermal conductivity
(D) Heat capacity

16. Separation of two or more components of a liquid solution cannot be achieved by:
(A) Absorption
(B) Fractional crystallization
(C) Liquid extraction
(D) Evaporation

17. Which of the following provides maximum contact surface for a liquid-vapour system?
(A) Bubble-cap plate column
(B) Wetted wall column
(C) Packed tower
(D) Sieve-plate column

18. Which is the separation technique used for desalination of sea water?
(A) Reverse osmosis
(B) Adsorption
(C) Absorption
(D) Thermal diffusion

19. Rate of adsorption increases as the:
(A) Size of adsorbent increases
(B) Pressure decreases
(C) Temperature decreases
(D) Temperature increases

20. The number of gram moles of solute per kilogram of solvent is called:
(A) Normality
(B) Molarity
(C) Molecular weight
(D) Molality

Questions for ITI Jobs

Refrigeration and Air Conditioner Carpenter
Automobile Engineering Lineman
Printing Technology Wireman
Tool and Die Maker Electrician
Boiler Operator Electrical
Pump Operator Mechanic
Architectural Draftsman Surveyor
Draughtsman Civil Instrument Mechanic
Masonry Electronics Mechanic
Welder Information Technology
Fitter Computer Hardware
Turner Steel Fabricator
Plumber Electroplater

21. Separation of a mixture of two gases by absorption in the liquid solvent depends upon the difference in their:
(A) Viscosity
(B) Density
(C) Relative volatility
(D) Solubility

22. Use of packed towers for distillation is generally limited to the:
(A) Small sizes
(B) Multicomponent distillation
(C) High pressure operation
(D) Vacuum distillation

23. Calcium Ammonium Nitrate (CAN) is:
(A) A complex fertilizer
(B) A mixed fertilizer
(C) An explosive
(D) A straight fertilizer

24. Ammonia synthesis gas is produced from natural gas by:
(A) Partial oxidation
(B) Thermal cracking
(C) Hydrogenation
(D) Steam reforming

25. Catalyst used in Haber’s process for ammonia production is:
(A) Nickel
(B) Reduced iron oxide
(C) Vanadium Pentoxide
(D) Silica gel

26. Triple superphosphate is made by reacting phosphate rock with __________ acid
(A) Sulphuric
(B) Phosphoric
(C) Nitric
(D) Hydrochloric

27. Urea is produced from carbon dioxide and:
(A) Nitric Oxide
(B) Ammonium Nitrate
(C) Ammonia
(D) Nitric acid

28. A solution with reasonably permanent pH is called a/an __________ solution.
(A) Colloidal
(B) Buffer
(C) Non-ideal
(D) Ideal

29. Isotonic solutions must have the same:
(A) Normality
(B) Viscosity
(C) Critical temperature
(D) Molar concentration

30. With increase in temperature, the surface tension of water:
(A) Decreases
(B) Increases linearly
(C) Increases
(D) Remains constant

31. Poly Vinyl Chloride (PVC) is a _____________ material.
(A) Thermoplastic
(B) Thermosetting
(C) Fibrous
(D) Chemically active

32. Out of the following, the joint produced by __________ ha the lower strength.
(A) Soldering
(B) Welding
(C) Brazing
(D) Rivetting

33. Heating of an ore below its melting point in presence of excess of air is called:
(A) Calcination
(B) Roasting
(C) Smelting
(D) Sublimation

34. Psychrometer determines the:
(A) Humidity of gases
(B) Moisture content of the solids
(C) Water of crystallization
(D) Hygroscopie nature of solids

35. What is the absorptivity of a black body?
(A) 0
(B) 0.78
(C) 1
(D) 0. 95

36. Which of the following has the highest flash point of all?
(A) Diesel
(B) Kerosene
(C) Furnace oil
(D) Petrol

37. Octane number of gasoline is a measure of its:
(A) Knocking tendency
(B) Ignition delay
(C) Ignition temperature
(D) Smoke point

38. Flash point of an oil is determined by the:
(A) Ramsbottom apparatus
(B) Pensky Martens apparatus
(C) Redwood viscometer
(D) Conradson apparatus

39. Glycerin is a by- product of the __________industry.
(A) Paint
(B) Oil hydrogenation
(C) Soap
(D) Detergent

40. CaO is called:
(A) Slaked lime
(B) Quick lime
(C) Limestone
(D) Calcite

41. A device used to remove condensate from steam heated equipment is:
(A) Coils
(B) Kettles
(C) Condensers
(D) Traps

42. Centistokes is unit of:
(A) Absolute viscosity
(B) Kinematic viscosity
(C) Pressure
(D) Surface tension

43. Joule Thomson co-efficient for an ideal gas is:
(A) 1
(B) -1
(C) 0
(D) ∞

44. Which is an example of reciprocating pump?
(A) Gear pump
(B) Screw pump
(C) Lobe pump
(D) Diaphragm pump

45. Manometers are used to measure:
(A) Flow rate
(B) Viscosity
(C) Pressure difference
(D) Atmospheric pressure

46. Which of the following enzymes helps breaking down of starch into maltose?
(A) Amylase
(B) Zymase
(C) Invertase
(D) Pepsin

47. In a dry cell, the cathode used is:
(A) Iron
(B) Zinc
(C) Aluminium
(D) Graphite

48. The activation energy of a reaction can be lowered by:
(A) Raising temperature
(B) Lowering temperature
(C) Removing products
(D) Adding a catalyst

49. Sodium salts of fatty acids are known as:
(A) Vegetable oils
(B) Gasoline
(C) Soaps
(D) Detergents

50. Alkyl halides on treatment with aqueous KOH gives:
(A) Acids
(B) Aldehydes
(C) Alcohols
(D) Alkanes

51. Chloroform is used as:
(A) Fertilizer
(B) Detergent
(C) Fuel
(D) Anaesthetic

52. Formalin is an aqueous solution of:
(A) Formyl Chloride
(B) Formaldehyde
(C) Formamide
(D) Formic acid

53. Which of the following has highest solubility in water?
(A) Acetic acid
(B) Benzoic acid
(C) Propionic acid
(D) n-butyric acid

54. Aniline is purified by:
(A) Simple distillation
(B) Vacuum distillation
(C) Steam distillation
(D) Extraction with a solvent

55. The oxidation number of Sulphur in SO2 is:
(A) +2
(B) -2
(C) +4
(D) -4

56. The most radioactive element is:
(A) Uranium
(B) Polonium
(C) Radium Thorium

57. The basic principle used in hydrogen bomb is:
(A) Nuclear fission
(B) Nuclear fusion
(C) Nuclear disintegration
(D) Neutron splitting

58. The process of vulcanization makes rubber:
(A) Soluble in water
(B) Less elastic
(C) Soft
(D) Hard

59. Which of the following is an addition polymer?
(A) Glucose
(B) Ethylene
(C) Terylene
(D) Polyethylene

60. Biochemical reactions which can take place in the absence of oxygen are called:
(A) Metabolic
(B) Aerobic
(C) Anaerobic
(D) Glycolysis

61. Turbidity of water is an indication of the presence of:
(A) Suspended inorganic matter
(B) Dissolved solids
(C) Floating solids
(D) Dissolved gases

62. Which of the following is not categorized as a” mechanical Operation”?
(A) Agitation
(B) Filtration
(C) Size reduction
(D) Humidification

63. Invar used in thermocouples is an alloy of nickel and:
(A) Iron
(B) Copper
(C) Chromium
(D) Lead

64. A good lubricant should have high:
(A) Viscosity index
(B) Volatility
(C) Pour point
(D) None of these

65. When vaporization takes place directly at the heating surface, it is called?
(A) Film boiling
(B) Vapour binding
(C) Nucleate boiling
(D) None of these

66. The number of kilogram of water vapourized per kilogram of steam fed to the evaporator is defined as:
(A) Capacity
(B) Rate of evaporation
(C) Rate of vapourization
(D) Economy

67. Pascal is the unit for:
(A) Temperature
(B) Pressure
(C) Frequency
(D) Conductivity

68. Radio carbon dating technique is used to estimate the age of:
(A) Rocks
(B) Monuments
(C) Soil
(D) Fossils

69. Which of the following contains the least percentage of carbon?
(A) Pig iron
(B) Wrought iron
(C) Cast iron
(D) Malleable iron

70. The material used for coating the welding electrode is termed as:
(A) Flux
(B) Slag
(C) Protective layer
(D) Binder

71. Chlorine acts as a bleaching agent only in the presence of:
(A) Dry air
(B) Pure oxygen
(C) Moisture
(D) Sun light

72. Which is the only metal that exist in liquid state at room temperature?
(A) Sodium
(B) Lithium
(C) Strontium
(D) Mercury

73. The refrigerant Freon-12 is chemically:
(A) CCI2F2
(B) CCl3F
(D) CCl4F

74. Heat flux is the time rate of heat transfer per unit:
(A) Length
(B) Volume
(C) Area
(D) None of these

75. The most efficient cooling tower out of the following is:
(A) Atmospheric
(B) Forced draft
(C) Natural draft
(D) Induced draft

76. Milk is dried usually in a ___________ dryer.
(A) Freeze
(B) Spray
(C) Tray
(D) Rotary

77. Diaphragm pumps are used to transport:
(A) Solids
(B) Liquids
(C) Fluids
(D) Slurries

78. Cavitation in a centrifugal pump can be avoided by keeping the:
(A) Inlet pressure high
(B) Outlet pressure low
(C) Inlet pressure low
(D) Outlet pressure high

79. An oil is converted into fat by its:
(A) Hydrolysis
(B) Hydrocracking
(C) Hydration
(D) Hydrogenation