API 653 Exam Chapter 11

API 653 Exam Chapter 11- Hydrostatic Testing and Brittle Fracture

Take a Free API 653 Exam Chapter 11 Practice test with Latest Hydrostatic Testing and Brittle Fracture Question and Answers

1.

Q1. API 653: hydrostatic testing
What is the duration of a full hydrostatic test?

 (a) 4 hours

 (b) 8 hours

 (c) 12 hours

 (d) 24 hours

2.

Q2. API 653: hydrostatic testing
API 653 specifies that a full hydrostatic test is required for a tank that has undergone ‘major repairs or major alterations. Which of the activities below is classed as a ‘major repair or major alteration’ on a 150 ft diameter tank?

 (a) Removing and replacing the complete bottom-to-shell weld

 (b) Installing 4 new bottom plates near the center of the tank

 (c) Installing a new NPS 12 nozzle below the liquid level

 (d) Installing a new NPS 14 nozzle above the liquid level

3.

Q3. API 653: hydrostatic testing
Which of these activities is likely to require a full hydrostatic test on an existing (not new) tank made of unknown low carbon steel with a shell and roof thickness of 0.7 in?

 (a) Full replacement of the roof

 (b) Increase of the service temperature from 40 ℉ to 65 ℉

 (c) Decrease of the service temperature from 65 ℉ to 40 ℉

 (d) Repair to the roof-to-shell welds

4.

Q4. API 653: hydrostatic test exemption
As a guiding principle, can experienced tank design engineers (employed by the owner/user) override the requirement for a hydrostatic test on an existing tank that has had major repairs and alterations and that API 653 suggests should be tested?

 (a) Yes

 (b) No, not under any circumstances

 (c) Yes, as long as the tank was built to API 650

 (d) It is open to interpretation; the code is unclear

5.

Q5. API 653: hydrostatic test: limiting stress in the repair area
Section 12.3.2.3.3 contains a formula for calculating the stress during a hydro test (to see if it exceeds 7 psi). What is the difference between this formula and the one in the ‘evaluation section of API 653?

 (a) None

 (b) The formula in 4.3.3.1b calculates the height H in a different way

 (c) The formula in 4.3.3.1b assumes a full plate course;12.3.2.2.3 does not

 (d) None of the above are correct

6.

Q6. API 653: shell repair for hydrostatic test exemption
If you want to claim exemption from a hydro test after repair, the material around the repair area (not the repair plates themselves) must:

 (a) Be impact tested, irrespective of the tank design temperature

 (b) Meet API 650 7th edition or later

 (c) Fall within the ‘safe use’ region of Fig. 5-2

 (d) None of the above are correct

7.

Q7. API 653: leak test
What is the objective of a leak test as defined in API 653 section 12.4?

 (a) To test the fillet welds on nozzle reinforcing pads

 (b) To replace the hydrostatic test for badly corroded tanks

 (c) To check for roof leaks

 (d) To check for bottom leaks

8.

Q8. API 653: measuring settlement during the hydro test
How many settlement measurement points are required during a hydro test (API 653 section 12.5.1.2), compared to the ‘out-of service’ requirement specified in API 653 appendix B?

 (a) You need more during the hydro test

 (b) You need fewer during the hydro test

 (c) The difference depends on the tank diameter

 (d) They are the same

9.

Q9. API 653: settlement points
How many inspection points are required to carry out an internal survey for a very large tank 280 ft in diameter?

 (a) 32 points

 (b) 28 points

 (c) 36 points

 (d) 45 points

10.

Q10. API 653: the objective of the hydrostatic test
Which of these is not a major objective of a tank hydrostatic test?

 (a) Check for brittle fracture

 (b) Check for creep failure

 (c) Check for shell distortion

 (d) Check for foundation settlement

 Loading …

Question 1 of 10

Click Here To Read Next API 653 Exam Chapter 12 – Tank Linings: API RP 652

Now try these practice questions.

11.6 API 653: Hydrostatic Testing practice questions

If You Want To Do the API 653 Training course or Want to Buy Latest Self Study Material Please feel free to contact us

BUY API 653 Learning Package Study Material
FOR EVERY 10 QUESTIONS 1 QUESTION COMES IN THE EXAM
WE HAVE THE LATEST API 653 QUESTION BANK
99% Passing Guarantee
Total 2000+ nos QUESTION BANK FROM THEORY TO PRACTICAL.
Cost: $100
Email Us To Buy: upweld.org@gmail.com
Click Here To Contact On Whatsapp https://wa.link/4dn6ee
Ideally document for passing the examination. Free guidelines during learning.
We give you lot’s of study material Free of cost with this question bank.