CC - TES - Tank Entry Supervisor Pre-Test Questions

10. One type of a hazardous atmosphere is a flammable gas, vapor, or mist in excess of _____LEL.

10% by volume

6. A combustible liquid is a liquid having a closed cup flash point equal to or greater than:

100 degrees F.

14. Oxygen deficient atmosphere means an atmosphere containing less than_____oxygen by volume.

19.5%

15. Oxygen enriched atmosphere means an atmosphere containing more than ____oxygen by volume.

23.5%

25. Most combustible gas indicators work on a design principle that depends on the presence of adequate oxygen levels to obtain accurate readings. For this reason, initial and subsequent tests around and inside the tank shall be conducted in the following order:

(1.) oxygen content, (2.) flammable vapors, and (3.) toxic exposures

12. The current OSHA exposure limit to lead is _____milligrams per cubic meter.

0.050

20. Who selects and assigns qualified persons?

Employers.

29. How often should the user of a respirator check the face piece seal?

each time it is put on

32. Before entering a tank, a written entry permit shall be issued by a qualified person and posted at the:

tank entry point.

24. Benzene, xylene, toluene, hydrogen sulfide are all:

toxic substances.

27. Copies of entry permits and atmospheric testing documents are kept on file for at least one year or longer if required by employer policy or government regulations. This is done to verify that:

conditions were properly evaluated and to assist in the post tank cleaning review.

31. An inspector is sent to a tank that is being worked to make a preliminary visual inside the tank. Personnel are inside the tank working. The inspector checks the work permit and does not find his name on the list. He should:

go to the entry supervisor and get him to add his name to the list and enter the tank.

30. How often are fit tests required for respirators?

initially and at least once every year thereafter

22. Blinds or blanks installed to isolate lines connected to a tank shall completely cover the bore of the line and it must:

be capable of withstanding the maximum pressure of the line with no leakage.

26. Some aromatic compounds found in petroleum hydrocarbons such as benzene, have been determined to have the potential to cause ______.

cancer

33. Where hot work is to be performed inside a tank, incipient first aid fire protection equipment must be shall be available. This includes, but is not limited to what equipment?

A fire extinguisher and/or pressured fire hose.

9. Entry means the action by which a person passes through an opening into a permit-required confined space. An entry is considered to have occurred when:

A part of the entrants body breaks the plane of an opening.

11. A covered open-top floating roof tank has ______.

A permanently attached cover (geodesic dome) over the top of the tank.

8. "Empty" as defined in ANSI/API 2015 signifies:

A tank that has no (standing) product remaining in it and is ready for cleaning.

4. Blanking or blinding means the ____ of a pipe, line, or duct by the fastening of a solid plate that completely covers the bore and is capable of withstanding the maximum pressure of the closure with no leakage beyond the plate.

Absolute closure

34. What is considered a qualified inspection of the tank prior to its closing and preparing for recommissioning?

An inspection satisfying the requirements of API 653.

21. ______ shall have a handle extending beyond the flange with a 1/4-inch minimum hole in it.

Blanks

5. When a solid flat plate (designed to retain the pressure) is installed across an opening using a gasket and fully engaged bolts in all flange bolt holes it is called:

Blinding

18. Vapor and gas freeing means ventilation or purging to remove:

Flammable and/or toxic materials from the tank atmosphere.

17. Sour refers to the presence of:

Hydrogen sulfide in petroleum products.

7. A confined space means any tank or space that meets three of the four listed requirements . One requirement does not belong, Which one is it?

It has an open top, unrestricted accessible entry and exit, and contains no harmful substances.

MSDS stands for:

Material Safety Data Sheet.

23. Name three general analyzers or indicators that are used as atmospheric testing equipment.

Oxygen and Flammable vapor analyzers and toxic substance indicators.

28. Name the three levels of tank entry.

Permit required confined spaces, non-permit required confined spaces, and non-confined spaces.

16. Pyrophoric iron sulfide is a material that may:

Spontaneously ignite upon exposure to air.

1. API standard 2015 provides safety practices for preparing, emptying, isolating, ventilating, atmospheric testing, cleaning, entry, hot work, and recommissioning activities in, on, and around atmospheric and low-pressure _____ that have contained flammable, combustible, or toxic materials.

Stationary atmospheric and low-pressure aboveground petroleum storage tanks

3. Which of the below is not covered by ANSI/API 2015?

Stationary refrigerated above ground petroleum vessels or pressure tanks

35. What is the definition of an ACGIH TLV-TWA for a substance?

Time-weighted average concentration for a conventional 8-hour workday and 40-hour workweek to which it is believed that nearly all workers may be repeatedly expose, day after day, without adverse affect.

19. In the United States, the confined space regulations are governed by several agencies. Pick the item listed below, that contain agencies that do not control confined space regulations. (4.2.15)

U.S. Federal Communication Commission and the National Security Administration

2. API standard 2015 applies to tanks that contain pressures:

Up to and including 15 psig