PLUMBER- PAGE 2
PLUMBER-PAGE 2- MCQs
1. If water flowing through a tap or valve is suddenly arrested, it will produce a noise like hammering and it is known as (A) Knock (B) Sound (C) Arrest (D) Water hammer
Ans: D
2. The most commonly used dis-infectant for sterilization of water is _______. (A) Chlorine (B) Sodium (C) Calcium (D) Carbon
Ans: A
3. Ground water is usually free from (A) Dissolved impurities (B) Suspended impurities (C) Minerals (D) Gases
Ans: B
4. Closed impeller type of centrifugal pumps is largely used for pumping water supplies, because (A) Efficiency is high (B) Low head (C) High head (D) Low suction head
Ans: A
5. The driving motor is placed below the pump bowl in a (A) Centrifugal pump (B) Air lift pump (C) Submersible pump (D) Reciprocating pump
Ans: C
6. The pump suitable for lifting water from very deep tubewells of the order of 100 to 150 m deep is (A) Rotary pump (B) Centrifugal pump (C) Submersible pump (D) Air lift pump
Ans: D
7. The pump which is not a kinetic energy pump is (A) Rotary pump (B) Mono block pump (C) Single stage pump (D) Dual stage pump
Ans: A
8. At what frequency maintenance works are be carried in water heater ? (A) 3 months (B) 6 months (C) 1 year (D) 9 months
Ans: B
9. The distance between manhole and gully chambers should not exceed (A) 15 m (B) 10 m (C) 6 m (D) 7 m
Ans: C
10. Waste fittings for wash basine shall be of nominal side (A) 32 mm (B) 40 mm (C) 50 mm (D) 63 mm
Ans: A
11. Main part of trap
A) Shape B) Out let
C) Water seal D) Inlet
Ans: C
12. Tap is used in wash basin
A) P trap B) Pillar cock
C) S trap D) Bib cock
Ans: B
13. Which valve is used in Flushing Cistern ?
A) Float B) Sluice
C) Non return D) Needle
Ans: A
14. Which dissolved impurities causes mottled enamel of teeth ?
A) Sodium flurides B) Sodium carbonate
C) Sodium bi carbonate D) Sodium chloride
Ans: A
15. Striking tool is
A) Divider B) Hacksaw
C) Hammer D) Ratchet Brace
Ans: C
16. Plumb bob is to verify the level of
A) Vertical B) Surface
C) Parallel D) Horizontal
Ans: A
17. Which is the velocity pump ?
A) Reciprocating B) India mark
C) Centrifugal D) Rotary
Ans: C
18. Horizontal pipe lines of sewer line and water supply line should have a distance of
A) 4 m B) 3 m
C) 2 m D) 5 m
Ans: B
19. Angle of single cut file teeth arrangement
A) 50° B) 55°
C) 60° D) 75°
Ans: C
20. Which material is used in soldering iron ?
A) Iron B) Lead
C) Copper D) Aluminium
Ans: C
21. Fixing height of sink
A) 80 cm B) 90 cm
C) 70 cm D) 100 cm
Ans: A
22. Domestic water supply system of Bathrooms and Lavatories _________ mm diameter pipes are used.
A) 6 B) 12
C) 18 D) 24
Ans: B
23. The system is suitable for towns growing irregularly
A) Radial B) Circle or Ring
C) Tree or Dead end D) Grid iron
Ans: C
24. Co-polymer vinyl chloride to be used temperature up to
A) 145°F B) 150°F
C) 190°F D) 200°F
Ans: C
25. Hyper filtration is also known as
A) Reverse osmosis process B) Lime-soda process
C) Zeolite process D) Demineralisation process
Ans: A
26. The flux of soldering stainless steel
A) Resin B) Phosphoric
C) Tallow D) Zinc chloride
Ans: B
27. Unplasticized polyvinyl chloride are
A) Type A B) Type B
C) Both of these D) None of these
Ans: C
28. Maximum holding capacity of chain pipe vice
A) 50 mm B) 100 mm
C) 150 mm D) 200 mm
Ans: D
29. Naturally available zeolite colour is
A) Green B) Yellow
C) Red D) Blue
Ans: A
30. Ratio of R.C.C. pipes
A) 1 : 1 : 1 B) 1 : 1 : 2
C) 1 : 2 : 2 D) 1 : 2 : 3
Ans: C
31. To carry mortar while pointing or plastering
A) Pointing trowel B) Hawk
C) Wooden float D) Plastering trowel
Ans: B
32. Resin melts at about
A) 80° to 100°C B) 50° to 70°C
C) 100° to 150°C D) 150° to 170°C
Ans: A
33. The top surface of thread
A) Thread angle B) Root
C) Crest D) Flank
Ans: C
34. Soakage trench is also known as
A) Leaching cess pool B) Dispersion
C) Soak pit D) Septik tank
Ans: B
35. Pick axe is made of
A) High carbon steel B) High speed steel
C) Tool steel D) Drop forged steel
Ans: C
36. Water filtration is to remove
A) Colour B) Odour
C) Turbidity D) Pathogenic Bacteria
Ans: C
37. Maso's scaffolding is also known as
A) Dependent B) Independent
C) Needle D) Suspended
Ans: B
38. Towel rail fixing height
A) 800 mm B) 1100 mm
C) 1000 mm D) 1200 mm
Ans: B
39. Air valves are generally provided
A) Pipe junctions B) Low points
C) Near service pipe lines D) Summits
Ans: D
40. Frequent adjustment required nut is
A) Wing nut B) Castle nut
C) Knurled nut D) T- nuts
Ans: C
41. Discharge from wash basin is called
A) Sullage B) Waste
C) Sewage D) Drainage
Ans: B
42. How to expressed the water turbidity ?
A) Colour code B) pH value
C) P.S. I. D) P.P.M.
Ans: D
43. Average thickness of plaster shall not less than
A) 12 mm B) 10 mm
C) 15 mm D) 18 mm
Ans: A
44. Most commonly used section in grade aqueducts is
A) Circular B) Rectangular
C) Parabolic D) Horseshoe
Ans: B
45. I.S. code of squatting type water closet
A) IS 2556 B) IS 2557
C) IS 2558 D) IS 2559
Ans: A
46. Water may not contain much impurities if its source is
A) Lakes in lower regions B) Reservoirs
C) Spring along hill slopes D) Stream flowing in plaines
Ans: C
47. Which Hammer is used for spreading metal in one direction ?
A) Ball peen B) Cross peen
C) Straight peen D) Claw hammer
Ans: B
48. Try square's measurement accuracy
A) 0.002 mm/10 mm B) 0.02 mm/10 mm
C) 0.0002 mm/10 mm D) 0.2 mm/10 mm
Ans: A
49. Which vice is used for holding small diameter jobs ?
A) Tool maker's vice B) Pin vice
C) Hand vice D) Quick releasing vice
Ans: B
50. Centrifugal casting is a manufacturing method of
A) G.I. B) C.I.
C) P.V.C. D) A.C.
Ans: B
Ans: D
2. The most commonly used dis-infectant for sterilization of water is _______. (A) Chlorine (B) Sodium (C) Calcium (D) Carbon
Ans: A
3. Ground water is usually free from (A) Dissolved impurities (B) Suspended impurities (C) Minerals (D) Gases
Ans: B
4. Closed impeller type of centrifugal pumps is largely used for pumping water supplies, because (A) Efficiency is high (B) Low head (C) High head (D) Low suction head
Ans: A
5. The driving motor is placed below the pump bowl in a (A) Centrifugal pump (B) Air lift pump (C) Submersible pump (D) Reciprocating pump
Ans: C
6. The pump suitable for lifting water from very deep tubewells of the order of 100 to 150 m deep is (A) Rotary pump (B) Centrifugal pump (C) Submersible pump (D) Air lift pump
Ans: D
7. The pump which is not a kinetic energy pump is (A) Rotary pump (B) Mono block pump (C) Single stage pump (D) Dual stage pump
Ans: A
8. At what frequency maintenance works are be carried in water heater ? (A) 3 months (B) 6 months (C) 1 year (D) 9 months
Ans: B
9. The distance between manhole and gully chambers should not exceed (A) 15 m (B) 10 m (C) 6 m (D) 7 m
Ans: C
10. Waste fittings for wash basine shall be of nominal side (A) 32 mm (B) 40 mm (C) 50 mm (D) 63 mm
Ans: A
11. Main part of trap
A) Shape B) Out let
C) Water seal D) Inlet
Ans: C
12. Tap is used in wash basin
A) P trap B) Pillar cock
C) S trap D) Bib cock
Ans: B
13. Which valve is used in Flushing Cistern ?
A) Float B) Sluice
C) Non return D) Needle
Ans: A
14. Which dissolved impurities causes mottled enamel of teeth ?
A) Sodium flurides B) Sodium carbonate
C) Sodium bi carbonate D) Sodium chloride
Ans: A
15. Striking tool is
A) Divider B) Hacksaw
C) Hammer D) Ratchet Brace
Ans: C
16. Plumb bob is to verify the level of
A) Vertical B) Surface
C) Parallel D) Horizontal
Ans: A
17. Which is the velocity pump ?
A) Reciprocating B) India mark
C) Centrifugal D) Rotary
Ans: C
18. Horizontal pipe lines of sewer line and water supply line should have a distance of
A) 4 m B) 3 m
C) 2 m D) 5 m
Ans: B
19. Angle of single cut file teeth arrangement
A) 50° B) 55°
C) 60° D) 75°
Ans: C
20. Which material is used in soldering iron ?
A) Iron B) Lead
C) Copper D) Aluminium
Ans: C
21. Fixing height of sink
A) 80 cm B) 90 cm
C) 70 cm D) 100 cm
Ans: A
22. Domestic water supply system of Bathrooms and Lavatories _________ mm diameter pipes are used.
A) 6 B) 12
C) 18 D) 24
Ans: B
23. The system is suitable for towns growing irregularly
A) Radial B) Circle or Ring
C) Tree or Dead end D) Grid iron
Ans: C
24. Co-polymer vinyl chloride to be used temperature up to
A) 145°F B) 150°F
C) 190°F D) 200°F
Ans: C
25. Hyper filtration is also known as
A) Reverse osmosis process B) Lime-soda process
C) Zeolite process D) Demineralisation process
Ans: A
26. The flux of soldering stainless steel
A) Resin B) Phosphoric
C) Tallow D) Zinc chloride
Ans: B
27. Unplasticized polyvinyl chloride are
A) Type A B) Type B
C) Both of these D) None of these
Ans: C
28. Maximum holding capacity of chain pipe vice
A) 50 mm B) 100 mm
C) 150 mm D) 200 mm
Ans: D
29. Naturally available zeolite colour is
A) Green B) Yellow
C) Red D) Blue
Ans: A
30. Ratio of R.C.C. pipes
A) 1 : 1 : 1 B) 1 : 1 : 2
C) 1 : 2 : 2 D) 1 : 2 : 3
Ans: C
31. To carry mortar while pointing or plastering
A) Pointing trowel B) Hawk
C) Wooden float D) Plastering trowel
Ans: B
32. Resin melts at about
A) 80° to 100°C B) 50° to 70°C
C) 100° to 150°C D) 150° to 170°C
Ans: A
33. The top surface of thread
A) Thread angle B) Root
C) Crest D) Flank
Ans: C
34. Soakage trench is also known as
A) Leaching cess pool B) Dispersion
C) Soak pit D) Septik tank
Ans: B
35. Pick axe is made of
A) High carbon steel B) High speed steel
C) Tool steel D) Drop forged steel
Ans: C
36. Water filtration is to remove
A) Colour B) Odour
C) Turbidity D) Pathogenic Bacteria
Ans: C
37. Maso's scaffolding is also known as
A) Dependent B) Independent
C) Needle D) Suspended
Ans: B
38. Towel rail fixing height
A) 800 mm B) 1100 mm
C) 1000 mm D) 1200 mm
Ans: B
39. Air valves are generally provided
A) Pipe junctions B) Low points
C) Near service pipe lines D) Summits
Ans: D
40. Frequent adjustment required nut is
A) Wing nut B) Castle nut
C) Knurled nut D) T- nuts
Ans: C
41. Discharge from wash basin is called
A) Sullage B) Waste
C) Sewage D) Drainage
Ans: B
42. How to expressed the water turbidity ?
A) Colour code B) pH value
C) P.S. I. D) P.P.M.
Ans: D
43. Average thickness of plaster shall not less than
A) 12 mm B) 10 mm
C) 15 mm D) 18 mm
Ans: A
44. Most commonly used section in grade aqueducts is
A) Circular B) Rectangular
C) Parabolic D) Horseshoe
Ans: B
45. I.S. code of squatting type water closet
A) IS 2556 B) IS 2557
C) IS 2558 D) IS 2559
Ans: A
46. Water may not contain much impurities if its source is
A) Lakes in lower regions B) Reservoirs
C) Spring along hill slopes D) Stream flowing in plaines
Ans: C
47. Which Hammer is used for spreading metal in one direction ?
A) Ball peen B) Cross peen
C) Straight peen D) Claw hammer
Ans: B
48. Try square's measurement accuracy
A) 0.002 mm/10 mm B) 0.02 mm/10 mm
C) 0.0002 mm/10 mm D) 0.2 mm/10 mm
Ans: A
49. Which vice is used for holding small diameter jobs ?
A) Tool maker's vice B) Pin vice
C) Hand vice D) Quick releasing vice
Ans: B
50. Centrifugal casting is a manufacturing method of
A) G.I. B) C.I.
C) P.V.C. D) A.C.
Ans: B
51. ________ are defined as fitting at the end of soil pipes of waste pipes to prevent foul gases coming out of waste pipes. (A) Vent (B) Trap (C) Leakage (D) Ventilation
Ans: B
52. _______ is caused by a fault in the trap or plumbing installation and water on the floor would be apparent. (A) Leakage (B) Joint (C) Die (D) Tap
Ans: A
53. The length along the centre of the pipe and fitting : (A) Development length (B) Span (C) Embedment length (D) Developed length
Ans: D
54. The lowest portion of the inside of any pipe or conduit that is not vertical (A) Span (B) Fitting (C) Invert (D) Elbow
Ans: C
55. A valve permitted a liquid or gas to flow in one direction : (A) Float valve (B) Gate valve (C) Globe valve (D) Check valve
Ans: D
56. What are the two sub systems in your home plumbing .....
A:-incoming fresh water and outgoing waste water B:-|ow pressure water and high pressure
C:-hot and cold water D:-none of the above
Ans: A
57. Which welding process preferred by weld thick plate ? (A) Tig welding (B) Thermit welding (C) Oxy-acetylene gas welding (D) Submerged arc welding
Ans: D
58. Solder for potable water pipe shall be ________ free. (A) Copper (B) Lead (C) Zinc (D) Metal
Ans: B
59. The liquid waste from Kitchens, Bath rooms and Wash basins, is not called (A) Liquid waste (B) Sewage (C) Sullage (D) None of these
Ans: B
60. A pipe installed in the house or building drainage to preserve that water seal of a trap (A) Soil pipe (B) Vent pipe (C) Waste pipe (D) Anti-Syphonage pipe
Ans: D
61. The disposal of sewage into natural water courses such as streams, rivers, sea and lake is known as (A) Chemical privy (B) Disposal by dilution (C) Dry privy (D) Septic tank
Ans: B
62. The bacterias which exist under dark and stagnate conditions in the absence of oxygen are known as (A) Self purification (B) Aerobic bacterias (C) Sewage treatment (D) Anaerobic bacterias
Ans: D
63. Soft solder are used for soldering, whose melting point is (A) less than 300 deg C (B) less than 350 deg C (C) less than 400 deg C (D) less than 450 deg C
Ans: D
64. ________ is a form of ball valve use to control the flow of a liquid or gas. (A) Tap (B) Pipe (C) Stop cock (D) Drainage
Ans: C
65. ______ is an inspection chamber in a drainage system. (A) Septic tank (B) Manhole (C) Gully trap (D) All of these
Ans: B
66. Which of the following is used in toilet under water closet ? (A) Nahini trap (B) Strap (C) Q trap (D) Bottle trap
Ans: B
67. Effluent quality control is typically aimed at (A) Public health protection (B) Prevention of Eutrophication (C) Promotion of water reuse (D) All of these
Ans: D
68. ______ forces non-toxic artificially created smoke through waste and drain pipes under a slight pressure to find leak. (A) Leak test (B) Water test (C) Smoke test (D) Pressure test
Ans: C
69. Melting point of zinc is
A) 327°C B) 420°C
C) 983°C D) 1083°C
Ans: B
70. Which type of fire extinguisher is used in welding shop ?
A) Halon B) Foam type
C) Dry powder D) Carbon di oxide
Ans: D
71. Self cleaning material is
A) Vitrous B) Concrete
C) S.W. D) C.I.
Ans: A
72. Angle of Mason's square
A) 45° B) 70° C) 90° D) 100°
Ans: C
73. Another form of coupling called
A) Shorten piece B) Long piece
C) Extension piece D) Small piece
Ans: C
74. Sanitary sewage is also known as
A) Plumbing waste B) Pipe sewage
C) Soil D) Domestic sewage
Ans: D
75. Which one is used to remove drill and sockets from the machine spindle ?
A) Drift B) Screw driver
C) Drill chuck D) Sleeve
Ans: A
76. Bronze is an alloy of
A) Copper and lead B) Lead and tin
C) Copper and tin D) Copper and zinc
Ans: C
77. Loading device is
A) Nuts B) Guide
C) Rivets D) Wedges
Ans: A
78. Clearance angle of a drill
A) 8° to 12° B) 12° to 20° C) 3° to 5° D) 15° to 25°
Ans: A
79:-Why mono block pumps are more popular .....
A:-|arge in size B:-sma|| in size C:-no valves D:-no priming Ans: B
80:-How many pipes are there in a one pipe system .....
A:-one B:-three C:-four D:-two Ans: D
81:-What are the materials required for flanged joint .....
A:-cement and hemp yarn B:-screw and washer C:-nut and bolt D:-|ead and tin Ans: C
82:-How much clearance from wall to be kept whi|e laying G.|. pipe internally
A:-1.5 cm B:-2.5 cm C:-3.5 cm D:-4.5 cm Ans: A
83:-What is the general fixing height of wash basin from floor level .....
A:-80 cm B:-70 cm C:-60 cm D:-65 cm Ans: A
84:-What is height of fixing of automatic cistern for urinal .....
A:-1800 mm B:-1900 mm C:-1600 mm D:-1500 mm Ans: B
85:-How many types of flushing cisterns are available based on operation .....
A:-5 types B:-3 types C:-4 types D:-2 types Ans: D
86:-What is the size of waste coupling for kitchen sink
A:-32 mm B:-50 mm C:-38 mm D:-40 mm Ans: B
87:-the brick or stone used in corner masonry of a wall is called .....
A:-king closer
B:-b|ank space
C:-quoin closer
D:-mortar
Ans: C
88:-Which part ensures uniform pressure on the measuring faces in a micrometer .....
A:-ratchet stop B:-thimb|e C:-spind|e D:-barre| Ans: A
89:-What is plate with a short handle and is used mainly to hold mortar. What is this tool .....
A:-spade B:-shove| C:-hawk D:-joint filler Ans: C
90:-Rust is formed from iron and which other element ..... A:-oxygen B:-hydrogen C:-nitrogen D:-su|pher Ans: A
91:-|n the context of water purification R0; stands for ..... A:-reverse osmosis B:-re|ative osmosis C:-reduced osmosis D:-refreshed osmosis Ans: A
92:-The use of asbestos cement is banned in some countries because ..... A:-it cannot be repaired easily B:-it leads to health problems C:-it is highly corrosive D:-it is too costly Ans: B
93:-Metals possess physical and mechanical properties. Which one of the following is a physical property of metals? A:-Tenacity B:-Ma||eabi|ity C:-Fusibi|ity D:-Ducti|ity Ans: C
94:-Which one of the following is the resistance of a metal to elastic deformation ..... A:-stiffness B:-toughness C:-strength D:-ducti|ity Ans: A
95:-Displacement pumps are of two types ..... A:-reciprocating and ram B:-reciprocating and rotary C:-reciprocating and centrifugal D:-reciprocating and jet Ans: B
96:-A portion of the plumbing system that receives discharges of soil and waste stacks within the building and conveys the same to the house sewer is ..... A:-main drain B:-soi| drain C:-waste drain D:-house drain Ans: D
97:-A plumbing fixture used for washing the middle private part of the body especially the Genitals is .....
A:-bidet
B:-ba|| faucet
C:-mini shower
D:-water house
Ans: A
98:-What is boiling point of water in Fahrenheit (F) sca|e .....
A:-112°f B:-212°f C:-312°f D:-100°f Ans: B
99:-Which test is applied in underground drains for soundness.....
A:-hydrau|ic test B:-pneumatic test C:-water test D:-sound test
Ans: C
Ans: B
52. _______ is caused by a fault in the trap or plumbing installation and water on the floor would be apparent. (A) Leakage (B) Joint (C) Die (D) Tap
Ans: A
53. The length along the centre of the pipe and fitting : (A) Development length (B) Span (C) Embedment length (D) Developed length
Ans: D
54. The lowest portion of the inside of any pipe or conduit that is not vertical (A) Span (B) Fitting (C) Invert (D) Elbow
Ans: C
55. A valve permitted a liquid or gas to flow in one direction : (A) Float valve (B) Gate valve (C) Globe valve (D) Check valve
Ans: D
56. What are the two sub systems in your home plumbing .....
A:-incoming fresh water and outgoing waste water B:-|ow pressure water and high pressure
C:-hot and cold water D:-none of the above
Ans: A
57. Which welding process preferred by weld thick plate ? (A) Tig welding (B) Thermit welding (C) Oxy-acetylene gas welding (D) Submerged arc welding
Ans: D
58. Solder for potable water pipe shall be ________ free. (A) Copper (B) Lead (C) Zinc (D) Metal
Ans: B
59. The liquid waste from Kitchens, Bath rooms and Wash basins, is not called (A) Liquid waste (B) Sewage (C) Sullage (D) None of these
Ans: B
60. A pipe installed in the house or building drainage to preserve that water seal of a trap (A) Soil pipe (B) Vent pipe (C) Waste pipe (D) Anti-Syphonage pipe
Ans: D
61. The disposal of sewage into natural water courses such as streams, rivers, sea and lake is known as (A) Chemical privy (B) Disposal by dilution (C) Dry privy (D) Septic tank
Ans: B
62. The bacterias which exist under dark and stagnate conditions in the absence of oxygen are known as (A) Self purification (B) Aerobic bacterias (C) Sewage treatment (D) Anaerobic bacterias
Ans: D
63. Soft solder are used for soldering, whose melting point is (A) less than 300 deg C (B) less than 350 deg C (C) less than 400 deg C (D) less than 450 deg C
Ans: D
64. ________ is a form of ball valve use to control the flow of a liquid or gas. (A) Tap (B) Pipe (C) Stop cock (D) Drainage
Ans: C
65. ______ is an inspection chamber in a drainage system. (A) Septic tank (B) Manhole (C) Gully trap (D) All of these
Ans: B
66. Which of the following is used in toilet under water closet ? (A) Nahini trap (B) Strap (C) Q trap (D) Bottle trap
Ans: B
67. Effluent quality control is typically aimed at (A) Public health protection (B) Prevention of Eutrophication (C) Promotion of water reuse (D) All of these
Ans: D
68. ______ forces non-toxic artificially created smoke through waste and drain pipes under a slight pressure to find leak. (A) Leak test (B) Water test (C) Smoke test (D) Pressure test
Ans: C
69. Melting point of zinc is
A) 327°C B) 420°C
C) 983°C D) 1083°C
Ans: B
70. Which type of fire extinguisher is used in welding shop ?
A) Halon B) Foam type
C) Dry powder D) Carbon di oxide
Ans: D
71. Self cleaning material is
A) Vitrous B) Concrete
C) S.W. D) C.I.
Ans: A
72. Angle of Mason's square
A) 45° B) 70° C) 90° D) 100°
Ans: C
73. Another form of coupling called
A) Shorten piece B) Long piece
C) Extension piece D) Small piece
Ans: C
74. Sanitary sewage is also known as
A) Plumbing waste B) Pipe sewage
C) Soil D) Domestic sewage
Ans: D
75. Which one is used to remove drill and sockets from the machine spindle ?
A) Drift B) Screw driver
C) Drill chuck D) Sleeve
Ans: A
76. Bronze is an alloy of
A) Copper and lead B) Lead and tin
C) Copper and tin D) Copper and zinc
Ans: C
77. Loading device is
A) Nuts B) Guide
C) Rivets D) Wedges
Ans: A
78. Clearance angle of a drill
A) 8° to 12° B) 12° to 20° C) 3° to 5° D) 15° to 25°
Ans: A
79:-Why mono block pumps are more popular .....
A:-|arge in size B:-sma|| in size C:-no valves D:-no priming Ans: B
80:-How many pipes are there in a one pipe system .....
A:-one B:-three C:-four D:-two Ans: D
81:-What are the materials required for flanged joint .....
A:-cement and hemp yarn B:-screw and washer C:-nut and bolt D:-|ead and tin Ans: C
82:-How much clearance from wall to be kept whi|e laying G.|. pipe internally
A:-1.5 cm B:-2.5 cm C:-3.5 cm D:-4.5 cm Ans: A
83:-What is the general fixing height of wash basin from floor level .....
A:-80 cm B:-70 cm C:-60 cm D:-65 cm Ans: A
84:-What is height of fixing of automatic cistern for urinal .....
A:-1800 mm B:-1900 mm C:-1600 mm D:-1500 mm Ans: B
85:-How many types of flushing cisterns are available based on operation .....
A:-5 types B:-3 types C:-4 types D:-2 types Ans: D
86:-What is the size of waste coupling for kitchen sink
A:-32 mm B:-50 mm C:-38 mm D:-40 mm Ans: B
87:-the brick or stone used in corner masonry of a wall is called .....
A:-king closer
B:-b|ank space
C:-quoin closer
D:-mortar
Ans: C
88:-Which part ensures uniform pressure on the measuring faces in a micrometer .....
A:-ratchet stop B:-thimb|e C:-spind|e D:-barre| Ans: A
89:-What is plate with a short handle and is used mainly to hold mortar. What is this tool .....
A:-spade B:-shove| C:-hawk D:-joint filler Ans: C
90:-Rust is formed from iron and which other element ..... A:-oxygen B:-hydrogen C:-nitrogen D:-su|pher Ans: A
91:-|n the context of water purification R0; stands for ..... A:-reverse osmosis B:-re|ative osmosis C:-reduced osmosis D:-refreshed osmosis Ans: A
92:-The use of asbestos cement is banned in some countries because ..... A:-it cannot be repaired easily B:-it leads to health problems C:-it is highly corrosive D:-it is too costly Ans: B
93:-Metals possess physical and mechanical properties. Which one of the following is a physical property of metals? A:-Tenacity B:-Ma||eabi|ity C:-Fusibi|ity D:-Ducti|ity Ans: C
94:-Which one of the following is the resistance of a metal to elastic deformation ..... A:-stiffness B:-toughness C:-strength D:-ducti|ity Ans: A
95:-Displacement pumps are of two types ..... A:-reciprocating and ram B:-reciprocating and rotary C:-reciprocating and centrifugal D:-reciprocating and jet Ans: B
96:-A portion of the plumbing system that receives discharges of soil and waste stacks within the building and conveys the same to the house sewer is ..... A:-main drain B:-soi| drain C:-waste drain D:-house drain Ans: D
97:-A plumbing fixture used for washing the middle private part of the body especially the Genitals is .....
A:-bidet
B:-ba|| faucet
C:-mini shower
D:-water house
Ans: A
98:-What is boiling point of water in Fahrenheit (F) sca|e .....
A:-112°f B:-212°f C:-312°f D:-100°f Ans: B
99:-Which test is applied in underground drains for soundness.....
A:-hydrau|ic test B:-pneumatic test C:-water test D:-sound test
Ans: C