Quiz : Level 1

Instrumentation Fittings and Tubing

Your Email *

Name *

1. BMT refers to: *

Busan Metal Technologies

Best & Most Trusted

Better & Most Trusted

Busan Metal and Tubing Industry

2. Pipe sizing is described in: *

Length and surface finish (Ra)

Outer diameter and wall thickness

Nominal bore and schedule

None of the above

3. Which one has a high strength to weight ratio: *

Pipe

Tube

Both

None of the above

4. Tubes are better than pipes due to: *

Low cost and availability

Easy to bend, flexible and durable

Fewer potential leak paths, higher flow, weight savings

None of the above

5. We use a sealant in the tapered thread (NPT) to seal the spiral leak path and to prevent galling. *

True

False

6.Thread galling is due to: *

Corrosion

Metal to metal friction

Cavitation

None of the above

7. The primary function of the front ferrule in a double compression fitting is to: *

Seal

Grip

None of the above

8. The primary function of the back ferrule in a double compression fitting is to: *

Seal

Grip

None of the above

9. The reason for special surface hardening treatments on back ferule is: *

To Increase corrosion resistance

To Increase hardness without affecting its corrosion resistance

To Increase temperature resistance

None of the above

10. Tube fitting nuts are coated with: *

Gold

Chrome plating

Silver

None of the above

11. BMT i-fitting consists of: *

Gap gauge ring (Blue) and inspection band (Red)

Safety ring (white) and corrosion ring (Red)

Corrosion ring (Red) and safety ring (Blue)

None of the above

12. Installation procedure for fitting sizes ranging from ¼’’ to 1’’: *

2 turns

3/4 turns

1 and 1/4 turns

None of the above

13. Installation procedure for fitting sizes 1/16’’, 1/8’’, and 3/16’’: *

2 turns

3/4 turns

1 and 1/4 turns

None of the above

^image at bottom of page for a hint

14. Which is the weakest link in the instrument hook up: *

Tube

Fitting

Both

None of the above

^image at bottom of page for a hint

15. Tube Variables are: *

Brand, Color

Quantity, length

Hardness, Concentricity, Outside and Inside diameter

None of the above

16. Recommended hardness for stainless steel 316/316l tubing: *

Less than 80 HRB

Less than 80 HRC

More than 80 HRB

Less than 80 HRA

17. PREN refers to: *

Pitting Recommendation and Equivalent note

Pitting Resistance Equivalent Number

None of the above

18. Higher the PREN better the corrosion resistance: *

True

False

19. The following corrosion occurs when we store tubes and fittings of dissimilar metals together *

Crevice Corrosion

Pitting Corrosion

Galvanic Corrosion

Intergranular corrosion

20. Instrumentation tubing is available in: *

Both Fractional (Inch) and Metric (mm)

Only in Fractional (Inch)

Only in Metric (mm)

21. Choose the tubing wall thickness based on the information below:

Separate email addresses with a comma.

Submit

Tube Selection Excersise

Media: Nitrogen

Application: Nitrogen Supply headers

System pressure: 1800 psi

Line Size: 3/4 inch

Quiz : Level 1

Instrumentation Fittings and Tubing

Thank You For Taking The Quiz

Tube Selection Excersise

^Installation procedure for fitting