TRADESMAN-PLUMBINGHYDRAULICS-TECHNICAL EDUCATION-kerala psc previous question paper
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175/2014
Maximum : 100 marks
Time : 1 hour and 15 minutes

1. Which valve is used to prevent back flow? 
(A) Gate valve 
(C ) Check valve
(B) Globe valve 
(D) Float valve

2.Anti-Siphon age pipes are provided to : 
(A) Carry cold water
(C ) Carry hot water
(B) Carry sewage
(D) Carry domestic water

3. Lead caulked joints arc generally provided 
(A) C.I. pipe 
(B) G.l. pipe 
(C ) S.W. pipe 
(D) A.C. pipe

4. The brick or stone used in corner masonry of a wall is called :
(A) King closer
(B) Queen closer
(C ) Quoin
(D) Bat

5. Ball test is used in a new sewer line to check 
(A) Leakage 
(B) Pressure 
(C ) Load 
(D) Alignment

6. Manholes are made over : 
(A) Open drain 
(B) Sewer line 
(C ) Water line 
(D) Gas line

7. Which device is used for tapping water from main for fire extinguishing? (A) Hydrant
(B) Water tap
(C ) Water meter
(D) Valve

8. Temporary hardness removed by :
(A) Freezing
(B) Aeration
(C ) Boiling
(D) Filtration

9. Which gas is used in gas welding?
(A)Oxy-nitrogen
(B)Oxy-hydrogen
(C )Oxy-carbon
(D)Oxy-acetylene

10.Water pump pliers are mostly used in :
(A)House plumping
(B)Pump repair
(C )Wire cutting
(D)Sheet cutting

11. For achieving self cleaning velocity 100 mm diameter drain pipes should have a slope of:
(A) 1: 10
(B)1:40
(C ) 1: 100
(D)1 : 400

12. The most important part of a trap :
(A) Cover
(B)Diameter
(C ) Material
(D)Water seal

18. Mortar pan is used for :
(A) Mixing of concrete
(B)Measuring cement
(C ) Carry excavated material
(D)Finish floor

14.In a brick work, which bond alternate course of header and stretcher arc laid? 
(A) English bond
(B) Flemish bond
(C ) Header bond
(D) Stretcher bond

15.When pipe vice handle is rotated in clockwise?
(A) Movable jaw rises
(B) Yoke also rotation
(C ) Fixed jaw low ers
(D) Movable jaw lowers

16.Use of asbestos cement is banned in many countries due to :
(A) Corrosion
(B) High cost
(C ) Health ground
(D) Brocken

17.Pipe wrench is used for pipes of diameter : 
(A) Less than 15 mm 
(B)15 mm to 50 mm
(C )50 mm to 150 mm
(D) More than 150 m

18.Spindle of Gate valve rotate without closing due to :
(A) Spindle is bend
(B) Defective packing
(C ) Gland nut loose
(D) Spindle thread badly worn out

19.In expansion joint socket end moves :
(A) Forward when contract 
(B) Forward when expand 
(C ) Backward when expand
(D) Side way when expand

20.Centrifugal casting is done by :
(A) Metal mould 
(B) Sand mould 
(C ) Static mould
(D) Coal tar mould

21.Bend (F + F) has :
(A) One end external thread 
(B) One end internal thread 
(C ) Both end internal thread
(D) Both end external thread

22.Dual system of dist ribution means :
(A) Gravity and pumping system 
(B) Pumping and intermittent system 
(C ) Gravity and continuous system
(D) Continuous supply system

23.The joining material of 8.W. pipe :
(A) Lead
(B) Cement mortar
(C ) Lead Wool
(D) Solvent cement.

21. Which side of mixing tap hot water line to be connected?
(A)Right side
(B)Bottom side
(C )Top side
(D)Left side

25. Which location booster pumps are fixed?
(A)Where pressure is high
(B)Where water meter fix
(C )Where pressure is low
(D)Where check valve fix

26. To remove accumulated air from pipe line :
(A)Provide pressure valve
(B)Provide gate valve
(C )Provide check valve
(D)Provide air valve

27. Reading accuracy of steel rule : 
(A)0.5 mm
(B)2 mm
(C )0.2 mm
(D)2.5 mm

28. Tap and wrench is used for cutting :
(A) External thread
(B) Internal thread
(C ) Groove
(D) Pipe

29. Material used for galvanizing M.S. pipe :
(A) Paint
(B) Tin
(C ) Lead
(D) Zinc

80. What is grain in wood?
(A) Direction of growth cell
(B) Knot  
(C ) Crack
(D) Hard wood

31. To protect C.L pipes from corrosion :
(A) Zinc
(B) Lead
(C ) Coal tar
(D) Primer

32. Which grade of G.l. pipe is used water supply?
(A) High
(B) Medium
(C ) Low
(D) Very high

38. Which types of Tongs are used for holding bar vertically?
(A) Hollow tong
(B) Flat tong
(C ) Square tong
(D) Round tong

34. Which chisel used for separating metal after chain drilling?
(A) flat chisel
(B) web chisel
(C ) diamond point chisel
(D) cross cut chisel

35. Gate valve is :
(A) One way valve 
(B) Air valve
(C ) Full way valve 
(D) Reflex valve

36. Which pipe fitting is used to connect two pipe with deferent diameter?
(A) Reducer
(B) Elbow
(C ) T-ee
(D) Union

37.Drain board to be fixed near :
(A) Sink 
(B) Wash basin 
(C ) Bath tub
(D) Urinal

38.The pitch of a coarse blade :
(A) 1mm
(B)0.8 mm
(C )1.4 mm
(D)1.8 mm

39.The point angle of center punch :
(A)60°
(B)30°
(C )90°
(D)45°

40.The diameter range of G.I pipe used in water distribution :
(A) 100 mm to 200 mm
(B) 50 mm to 150 mm
(C ) 300 mm to 400 mm
(D) 400 mm to 500 mm

41.Which vice is mostly used by plumber? 
(A) Hand Vise 
(B) Pipe Vice 
(C ) Pin Vice 
(D) Bench Vice

42.The distance between two adjacent tooth of hack saw blade is known as :
(A)Pitch
(B)Depth
(C )Length
(D)Width

43.In brazing filler material is Commercially known as :
(A)Filter
(B)Smelter
(C )Setter
(D)Spelter

44.Metal which contain iron substance is called as 
(A) Non-Ferrous Metal
(B) Non-Ferrous Alloy Metal 
(C ) Ferrous Metal
(D) Non-Metal

45.The Tool used to check the vertical level of a wall
(A) Spirit Level
(B)Plumb-bob
(C ) L-Square
(D)Try-Square

46.The Portion of the brick cut across its length :
(A) Bat
(B)King Closer
(C ) Perpends
(D)Queen Closer

47.Minimum Diameter of the G.I Pipe :
(A) 20 mm
(B)25 mm
(C ) 50 mm
(D)15 mm

48.Which type of pipe can be cut easily by pipe cutter?
(A) A.C. Pipe
(B)C.I. Pipe
(C ) Copper Pipe
(D)S.W. Pipe

49.Lead Caulked joints are Provided :
(A) PVC Pipe
(B)G.I. Pipe
(C ) Copper Pipe
(D)C.I. Pipe

50.Which Tool is used to Clean and Sharpen the jaw of wrench?
(A) Flat file
(B)Round file
(C ) Triangular file
(D)Half Round file

51.The pipe fittings make an angle of 90° between adjacent Pipe :
(A) Elbow
(B)Tee
(C ) Reducer
(D)Socket

52.Ferrules are made out of:
(A) P.V.C
(B)Brass
(C ) Lead
(D)Tin

53.The Instrument used for measuring the water pressure :
(A) Pressure Gauge
(B)Water Meter
(C ) Hydrant
(D)Marking Gauge

54. Filling up of water in the Suction pipe before starting centrifugal pump is known as :
(A) Pumping
(B)Filling
(C ) Boostening
(D)Priming

55.Water having pH less than ‘7’ is :
(A) Alkaline
(B)Neutral
(C ) Acidic
(D)More Alkaline

56.The Suitable lay out for a water supply distribution system for an irregular grown town is :
(A) Ring System
(B)Tree System
(C ) Radial System
(D)Grid Iron System

57.The Process which removes Pathogenic bacteriain water:
(A) Screening
(B)Sedimentation
(C ) Aeration
(D)Disinfection

58.A hood on the top of vent pipe :
(A) Cowl
(B)Tee
(C ) Cap
(D)Plug

59.The pipe which conveys to a drain the dischargefroma water closet or urinals :
(A) Waste Pipe
(B)Soil Pipe
(C ) Vent Pipe
(D)Siphon Pipe

60.The tap used in wash hand basin :
(A) Bib tap
(B)Plug tap
(C ) Pillar tap
(D)Self Closing tap

61.The pipe which carries liquid waste that does not include human excreta :
(A) Soil pipe
(B)Waste pipe
(C ) Siphon pipe
(D)Vent pipe

62.The pipe which is installed in the house draining to calledTonguereserve the water seal of the trap is
(A) Anti-siphonage pipe
(B)Soil pipe
(C ) Waste pipe
(D)Rain water pipe

68. The Low grade of G.I pipe is marked as : 
(A) Red hand 
(B) Blue hand
(C ) Yellow hand
(D) Green hand
 
64. Pinning in file is removed by :
(A) Triangular file 
(B) Chisal
(C ) Hack saw blade
(D) File Card

66. Which material is used to manufacture S.W pipe?
(A) Grey C.I.
(B) Asbestose fiber
(C ) Quality Clay
(D) Concrete

66. Which device is used for measuring quantity of water flowing through pipe? 
(A) Water metre
(B) Ammeter
(C ) Pressure gauge
(D) Multimetre

67. State the ablution fixture : 
(A) Water closet 
(B) Urinal
(C ) Slope sink 
(D) Wash basin

68. Floor trap also known as : 
(A) Running trap 
(B) Nahni trap 
(C ) Gully trap 
(D) S-trap

69.Which tool is used to assembling and dismantling of pipe?
(A)Spanner
(B)Hacksaw
(C ) Tap and wrench
(D) Pipe wrench

70.The normal length of G.I pipe available in market:
(A)6 m
(B)8 m
(C )5 m
(D)7 m

71. Engineer’s Hammer is used for :
(A) Cutting
(B) Filing
(C ) Striking
(D) Holding

72. The Trap which Prevent the Siphonnge : 
(A) P-Trap 
(B) Anti-D-Trap 
(C ) S-Trap 
(D) Floor trap

73.Which caliper is used for External measurement?
(A) Out side Caliper
(B)Inside Caliper
(C ) Jenny Caliper
(D)Odd leg Caliper

74. Which chisel is used for cutting C.I pipe? 
(A) Cross cut chisel 
(B) Hound chisel 
(C ) Diamond point chisel 
(D) Flat chisel

75. Aluminium is extracted from : 
(A) Zinc sulphate 
(B) Tin stone 
(C ) Hematite
(D) Bauxite

76. Presence of calcium and magnesium in water cause :
(A) Softening
(B) Hardening
(C )Poisoning
(D)Turbidity

77. The available length of a S.W pipe :
(A)600 mm
(B)500 mm
(C )100 mm
(D)750 mm

78.Which valve is used for automatic closing of water to flush tank? 
(A) Foot valve 
(B) Gate Valve  
(C ) Globe Valve
(D) Float Valve

79. Zeolite process is used to remove : 
(A) Water Hammer 
(B) Colour 
(C ) Water hardness 
(D) Taste

80. The size of w aste fitting for wash basin : 
(A)40 mm
(B)32 mm
(C )50 mm
(D) 20 mm

81. The standard Meridian of India is :
(A)82-1/2o East
(B)23 '/2°South
(C )23-1/2° North
(D)82-1/2° North

82.The river known as sorrow of Bihar :
(A)Damodar
(B)Mahanadi
(C )Kosi
(D)Brahmaputra

83.Oldest mountain of India :
(A)Himalaya
(B)Aravalli
(C )Kanjhan Janga
(D)Mt. K2

84.Development of a country can generally be determined by :
(A)Its average literary level
(B)Its national income l
(C )Its per capita income
(D)Its health status

85.N.R.E.G.A. 2005 stands for :
(A)Right to minimum wage
(B)Right to work
(C )Right, to education
(D)Right to association

86.The statewhich has the lowest Infant Mortality Rate :
(A)Punjab
(B)Bihar
(C )Hariyana
(D)Kerala

87.Who was known as Rani of Nagas?
(A)Rani Lakshmi Rni
(B)Rani Gaidiliu
(C )Rani Roopmati
(D)Rani Padmini

88. The author of “Prabudha Baratha” 
(A) Swami Vivekananda
(B)Sri Ramakrishna Paramahamsa
(C ) Raja Ram Mohan RaiAnnie Besant

89.“ANUSILANSAMITI” is a :
(A) Newspaper
(B)Political party
(C ) Social Reform Society
(D)Revolutionary society

90.The end of British East India Company’s Rulein India:
(A) 1773
(B)1858
(C ) 1935
(D)1947

91.“Poorna Swaraj” was accepted in which congress session?
(A) Calcutta
(B)Nagpur
(C ) Allahabad
(D)Lahore

92.Present chief Election Commissioner of India :
(A) R.V.S. Porisaatri
(B)V.S. Remadevi
(C ) S.S. Dhanova
(D)V.S. Sambath

93.The venue of World Cup Football 2014:
(A) Spain
(B)Brazil
(C ) England
(D)Italy

94.“Mudhgal Committee” related with :
(A) Western Ghat Protection
(B)2 G spectrum
(C ) IPL corruption
(D)Social Backwardness

95.The Satellite “Mangalyaan” launched by India was made with
engine.
(A)Raptor
(B)Gasoline
(C )Viking 5 C
(D)Cryogenic

96.The smallest river in Kerala :
(A)Valapattanam
(B)Nileswaram
(C )Manjeswaram
(D)Ramapuram

97.Largest area nut producing district in Kerala :
(A)Kottayam
(B)Wynad
(C )Kasargod
(D)Pattanamtitta

98.Who was known as ‘Pulaya Raja”?
(A)Dr. Ambedkar
(B)Kumara Guru
(C )Ayyankali
(D)Phule

99.V.T. Battathiripad stood for :
(A)Political reform
(B)Social reform
(C )Literary field
(D)Educational service

100.Founder of"Sahodara Sangam :
(A)Vagbatananda
(B)Mannattu 
(C )Dr. Palpu
(D)K. Ayyappan
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