EFX Boilermaker Craft Test

Boilermaker Craft Test

Directions: You have 45 minutes to complete this test. Answer all questions to the best of your ability. Select the most appropriate answer for each multiple-choice question. Each question is worth one point. There are 20 questions total.

Safety Reminder: Always prioritize safety while working in the field. This test includes both theoretical knowledge and practical scenarios.

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1 / 20

1. What should a boilermaker do if they encounter a situation where they are unsure about the correct safety protocol to follow?

Guess the correct protocol and continue working.

Stop work and seek guidance from a supervisor

Ask a coworker for advice

Make their own decision about the protocol to follow

2 / 20

2. What is the primary function of a boiler tube in a steam boiler?

Store fuel

Transfer heat to generate steam

Provide structural support

Prevent corrosion

3 / 20

3. In industrial boiler work, why is preheating metal before welding sometimes required?

To increase welding speed

To improve electrical conductivity

To prevent cracking due to rapid cooling

To make slag removal easier

4 / 20

4. When welding stainless steel, which shielding gas is commonly used?

Argon

Oxygen

Carbon dioxide

Hydrogen

5 / 20

5. What is the purpose of a root pass in multi-pass welding?

To add cosmetic finish

To reduce distortion

To provide penetration and establish a solid foundation for additional passes

To prevent oxidation

6 / 20

6. What is the function of a steam drum in a water-tube boiler?

Store combustion gases

Separate steam from water

Maintain structural integrity

Filter impurities from fuel

7 / 20

7. What causes water hammer in a boiler system?

High steam temperature

Poor insulation

Condensed steam turning back into water and moving at high velocity

Overheating of tubes

8 / 20

8. In an industrial boiler system, why are expansion joints used?

To hold components in place

To compensate for thermal expansion and contraction

To provide additional weight support

To increase pressure

9 / 20

9. Which of the following is not a common cause of boiler tube failure?

Corrosion

Low-pressure operation

Overheating

Scale buildup

10 / 20

10. What is the purpose of a safety valve in a boiler system?

To release excess pressure and prevent explosions

To regulate water temperature

To stop combustion if the fuel is low

To balance steam pressure

11 / 20

11. On an industrial blueprint, what does the abbreviation "C.L." represent?

Circular Lap

Closed Loop

Center Line

Critical Load

12 / 20

12. When a boiler blueprint includes a section view, what does it show?

A full 3D representation

The electrical wiring of the boiler

A cutaway view that reveals internal components

The material specifications only

13 / 20

13. What does a weld symbol with a flag on a blueprint indicate?

A continuous weld

A field weld (to be performed on-site)

A test weld

A seam weld

14 / 20

14. What is a boilermaker’s square commonly used for?

Checking weld temperature

Ensuring correct angles during fabrication

Measuring pipe thickness

Cleaning weld beads

15 / 20

15. Which measurement tool is most commonly used to check pipe roundness?

Micrometer

Pi tape

Calipers

Feeler gauge

16 / 20

16. According to OSHA, when working in a confined space in a boiler, what safety requirement is mandatory?

A fire extinguisher nearby

An entry permit and atmospheric monitoring

Wearing leather gloves

A backup oxygen tank

17 / 20

17. When lifting heavy boiler components with a crane, what is the most important factor to check first?

The weather conditions

The load rating of the sling and lifting equipment

The type of metal being lifted

The number of workers available

18 / 20

18. What is the maximum allowable percentage of wear before a lifting chain must be removed from service?

10%

20%

19 / 20

19. When working around high-pressure steam lines, what is the greatest hazard?

Electrical shock

Noise exposure

Carbon monoxide poisoning

Burns from steam leaks or ruptures

20 / 20

20. What is the correct hand signal for "stop" when directing a crane operator?

Both arms extended forward

One arm extended out, palm facing down

A closed fist raised above the head

Waving both arms back and forth

Your score is

Exit

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