2.
Which type of 90 degree Elbow is generally used in piping
3.
Which of the following is used to block up the pipe on one end?
4.
Which size onwards NB of pipe is equal to OD of pipe?
6.
We generally cut threads on GI pipes by which method?
7.
What is Maximum pressure rating of flange?
8.
What is Cloud marking in isometric indicates?
9.
What is radius of short radius elbow?
10.
Non-return valve also known as?
11.
Which is not a flange classification according to flange facing?
12.
How can flanges be classified based on face finish?
13.
what is full form of IBR in piping?
14.
Weld joint type of WNRF flange is?
15.
What is minimum distance maintained between two weld joints?
16.
What is the most commonly used material for Gasket?
17.
In the following given options which is not a permanent wielding connection?
18.
Arithmetic Average Rough Height (AARH) is measurement for :
19.
Stainless steel is known as acid proof steel, what is the grade?
20.
By using following fitting we use to make branch joint at right angle with respect to main line is?
21.
Valve is used in a piping system for:
