Plumber PVC pipe fitting | प्लम्बर पीवीसी पाइप फिटिंग

September 25, 2024 ITI Exam

START QUIZ पर क्लिक करें और अपना Test पूरा करें

Q1. What is the name of portion marked as ‘X’?

(A) Weep holes

(B) Infiltration gallery

(D) River

Q2. What is the name of joint that has threads on both sides of the central piece?

(A) Barrel nipple

(B) Double nipple

(D) Reducer

Q3. What is the name of part marked as ‘X’ in PVC flanged joint?

(A) Metal flange

(B) Rubber gasket

(D) PVC vane

Q4. What is the use of collar joint?

(A) Joining big dia concrete and asbestos pipes

(B) Used for connecting small dia GI pipes

(D) Used for laying pipe on curved surface

Q5. What is the size of trench width for PVC pipes?

(A) O.D of pipe + 30 cm

(B) O.D of pipe + 28 cm

(D) O.D of pipe + 26 cm

Q6. Why the space is left between the socket base and spigot end in the expansion joint?

(A) Permit the rubber gasket to seat properly

(B) Allow free movement under temperature variation

(D) Permit lubrication media to pass through

Q7. Which ‘time parameter’ for joint to get cooled and free from physical stresses in poly fusion welding?

(A) Hardening time

(B) Connection time

(D) Adoption time

Q8. Which bicarbonates are the reason for temporary hardness of water?

(A) Sulphates

(B) Calcium and magnesium

(D) Chlorides

Q9. What is the name of component used in boring tube wells?

(A) Blind pipe

(B) Strainer pipe

(D) Auger

Q10. What is the name of arrangement in water supply system?

(A) Pumping system

(B) Gravity system

(C)Continuous system

(D) Dual system

Q11. Identify the method of drilling tube wells?

(A) Rotary drilling

(B) Core drilling

(D) Percussion drilling

Q12. Identify the method of drilling tube wells?

(A) Rotary drilling

(B) Core drilling

(D) Percussion drilling

Q13. What is done prior to fixing the PVC pipes on wall with wooden plugs and clamps?

(A) Check for proper size

(B) Clean the pipes internally

(D) Check the accessories

Q14. What is the purpose of reducer in the pipe line?

(A) Connect two pipes of same dia

(B) Connect two pipes of different dia

(D) Connect one length to another

Q15. Which process works on the principle of diffusion in water softening treatment?

(A) Demineralisation process

(B) Reverse osmosis process

(D) Lime soda process

Q16. Which process is used to remove the calcium and magnesium in hard water?

(A) Lime soda process

(B) Zeolite process

(D) Demineralisation process

Q17. What is the name of part marked as ‘X’ in gas heated operated type welding?

(A) Gas supply

(B) Heat exchanger coil

(D) Hot gas nozzle

Q18. What is the name of pipe special fitting?

(A) Nipple

(B) Socket

(D) Socket/spigot

Q19. Which gas is used to heat the torches in gas heated operated type welding?

(A) Butane

(B) Acetylene

(D) Methylene

Q20. Which meter is used to measure the colour of water?

(A) Thermometer

(B) Tinto meter

(D) Monometer

Q21. What is the temperature range of heating tools used in plastic welding process?

(A) 400 to 470°C

(B) 200 to 370°C

(D) 600 to 670°C

Q22. What is the name of pipe special fitting?

(A) Nipple

(B) Elbow

(D) Socket

Q23. Which is the system of water distribution?

(A) Radial system

(B) Circle or ring system

(D) Tree or dead end system

Q24. Which is back filling material shall used for frenches to lay on PVC pipes?

(A) Sand

(B) Clay

(D) Cement

Q25. What is the main criteria for fixing a booster pump?

(A) Excess pressure

(B) Insufficient pressure

(D) High suction head

Q26. How much gap is allowed from the end of pipe after 15° chamfering in ring seal joint?

(A) 10 mm

(B) 15 mm

(D) 12 mm

Q27. What is the desirable temperature of portable water?

(A) 6°C

(B) 5°C

(D) 10°C

Q28. Which pipe is used for carrying cold water?

(A) PVC pipe

(B) Steel pipe

(D) Copper pipe

Q29. Name the method of drilling tube wells?

(A) Rotary drilling

(B) Core drilling

(D) Percussion drilling

Q30. What is the size of waste fitting in a bath tub?

(A) 40 mm

(B) 50 mm

(D) 60 mm

Q31. What is the use of CI traps?

(A) Discharge the cleaning water

(B) Prevent foul air passing in to building

(D) Permit the water to flow freely

Q32. Which is the advantage of water supply in intermittent system?

(A) Water can be supplied to high level areas

(B) Size of the pipes are required to be larger

(D) Size of the pipes are not required to be larger

Q33. What is the function of water hammer arrester?

(A) Release excess pressure

(B) Provide cushioning of air to absorb momentum

(D) Regulate water flow

Q34. What is the size of concrete weep holes constructed in the infiltration galleries?

(A) Size 3x10 cm

(B) Size 5x10 cm

(D) Size 7x10 cm

Q35. What is the name of trap?

(A) S trap

(B) P trap

(D) Q trap

Q36. Which is the process of water softening treatment works based on ion-exchange process?

(A) Lime soda process

(B) Reverse osmosis process

(D) Demineralization process

Q37. What is the length of pipe projection required from the vice while threading GI pipes?

(A) 125-150 mm

(B) 100-125 mm

(D) 150-250 mm

Q38. Which material is used to make ferrules in dual system of treated water supply?

(A) Lead

(B) Steel

(D) Bronze

Q39. What is the name of component?

(A) Water hammer arrester

(B) Air valve

(D) Poppet valve

Q40, Which type of joint is suitable for joining large size of PVC pipes with valve?

(A) Flare joint

(B) Flanged joint

(D) Brazed joint

Q41. What is the natural colour of zeolite?

(A) Red

(B) Green

(D) Blue

Q42. What is the cause of permanent hardness in the water?

(A) Clay, silt

(B) Bicarbonates of calcium

(D) Garbage

Q43. Which has an exterior pipe thread end and used for fitting in the socket?

(A) Elbow

(B) Bend

(D) Plug

Q44.What is the name of part marked as ʺXʺ?

(A) River

(B) infiltration wells

(D) Shallow well

Q45. Which fitting is used to connect one length to another for continuation of the pipe?

(A) Reducer

(B) Tee

(D) Elbow

Q46. Which is the process of water softening treatment works based on ion-exchange process?

(A) Reverse osmosis process

(B) Lime soda process

(D) Demineralization process

Q47. What is the minimum depth for deposit of sand and porous material above the river bed to get filtered water?

(A) 3 meters

(B) 5 meters

(D) 6 meters

Q48, Where the water hammer arresters are required?

(A) Near air valve

(B) Near pressure release valve

(D) Near NRV

Q49. What is the maximum temperature CPVC pipes can withstand heat?

(A) 160°F

(B) 140°F

(D) 190°F

Q50. What is the name of pipe fitting?

(A) Bend

(B) Offset

(D) Double bend

Plumber 1st Year Module 4 Plumber PVC pipe fitting

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