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Piping Basic

Welcome to quiz on Piping Basics

Here you will know about how much you have learned about piping from the scratch

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1. RTJ is a type of ?

Olet

valve

Instrument

Flange

2. Which size onwards NB of pipe is equal to OD of pipe?

10

NB is never equal to OD

16

14

3. We generally cut threads on GI pipes by which method?

By centre lathe

By die and stock

By tap sets

By thread rollers

4. Weld joint type of WNRF flange is?

All of these

Threaded joint

Butt Weld

Socket Weld

5.

6. Which type of 90 degree Elbow is generally used in piping

3D elbow

1D elbow

5D elbow

1.5D elbow

7. How can flanges be classified based on face finish?

A and B both

Smooth finish

None of them

Serrated Finish

8. What is Maximum pressure rating of flange?

2500#

3500#

2000#

3000#

9. By using following fitting we use to make branch joint at right angle with respect to main line is?

Elbow

Reducer

WNRF flange

Tee

10. Which of the following is used to block up the pipe on one end?

Socket

Union

Cross

Plug

11. What is minimum distance maintained between two weld joints?

5 time of pipe thickness

1 meter

100cm

1D (D is diameter of pipe)

12. What is the most commonly used material for Gasket?

PVC

Compressed Asbestos Fibre

Graphite

Steel

13. In the following given options which is not a permanent wielding connection?

Sampling device

Reducers

Bends

NRV

14. Which is not a flange classification according to flange facing?

WNRF

Flat face

Ring type joint

Raise Face

15. Arithmetic Average Rough Height (AARH) is measurement for :

All of the above

Flange serration

Face finish

Gasket Serration

16. Stainless steel is known as acid proof steel, what is the grade?

c) SIS 2333

AISI 304

d) SIS 2359

b) AISI 316

17. Valve is used in a piping system for:

Flow isolation

All of these

Flow control

Pressure Regulation

18. What is Cloud marking in isometric indicates?

Change occured in Revision

Change in isometric

Change in Piping system

Change in material

19. what is full form of IBR in piping?

Incorporated By Reference

none of these

Income Based Repayment

Indian boiler regulations

20. Non-return valve also known as?

Gate valve

Control valve

Check valve

Globe valve

21. What is radius of short radius elbow?

1.5D

3D

1D

2D

4 out of 3

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