Blog

Welcome to Hardhatengineer.com. I am Varun Patel. In this video, you will learn about the most common questions regarding piping that you may face during the interview.

1. What is insulation gasket kit and where do you use it?
2. What is insulation joint?
3. What is the minimum distance to be maintained between two welds in a pipe?
4. What are different types of insulation used in piping?
5. What is the difference between GRE and GRP Pipe?
6. What is the difference between post heating of weld and PWHT?

[Read more…] about Piping Interview Questions Part-10 (Essential Questions Part-3)

Welcome to Hardhatengineer.com. I am Varun Patel. In this video, you will learn about the most common questions regarding piping that you may face during the interview.

You will learn about these questions;

1. What is the difference between a machine bolt and stud bolt?
2. What is the thumb rule to calculate spanner size for a given bolt?
3. What is a steam tracing?
4. Which piping items will you drop down before conducting Flushing and Hydrotest?
5. Why do we provide a Dampener in the Piping of Reciprocating Pump?
6. Why do we provide Full Bore Valve in connecting pipeline of Launcher / Receiver?
7. What should be the relative hardness between the RTJ gasket and flange groove?
8. Why do we provide Drip Leg in Steam Line?
9. What is the normal upstream and downstream straight length of orifice flowmeter?
10. What do you mean by Composite Flange?

[Read more…] about Piping Interview Questions Part-9 (Essential Questions Part-2)

Welcome to Hardhatengineer.com. I am Varun Patel. In this video, you will learn about the most common questions regarding piping that you may face during the interview.

You will learn about these questions;

1. When is Low strength carbon steel bolting used?
2. When carbon steel materials shell used and when alloy steel material shall be used?
3. When are Galvanized Pipe used?
4. From which size onwards Nominal Bore of a pipe is equal to Outside Diameter of Pipe?
5. What should be the radius of a long radius and short radius elbow?
6. When long radius and short radius elbow are used?
7. Normally where do we use Eccentric reducers and Concentric reducers?
8. From which side of pipe will you take a branch connection?
9. Why do we provide High Point Vent (HPV) and Low Point Drain (LPD) in piping?
10. What is Jacketed Piping?

[Read more…] about Piping Interview Questions Part-8 (Essential Questions Part-1)

Welcome to Hardhatengineer.com. I am Varun Patel. In this video, you will learn about the most common questions regarding gasket that you may face during the interview.

You will learn about these questions;

1. Can you explain some properties of gasket material?
2. What is centering ring in spiral wound gasket?
3. What are the most common materials used for winding in Spiral Wound metallic Gasket?
4. How to identify the type of winding material in a spiral wound gasket?
5. On which type of flanges, use of spiral wound gasket are restricted by code?
6. What type of gasket is used in Heat Exchanger?

[Read more…] about Piping Interview Questions Part-7 (Gasket Essential Questions)

Welcome to Hardhatengineer.com. I am Varun Patel. In this video, you will learn about the most common questions regarding gasket that you may face during the interview.

You will learn about these questions;

1. How many types of gaskets are used in piping?
2. What is most commonly used gasket material for temporary piping?
3. Which is most commonly used gasket types for process piping?
4. Which type of gasket is used for high-pressure piping?
5. What are the criteria for selection of Gasket?

[Read more…] about Piping Interview Questions Part-6 (Gaskets Types and Used)