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BOILERMAKER 4 QUESTIONS AND ANSWERS
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Slip blinds used in a hydrostatic test must meet or exceed the engineering specifications for all flanges in the system. - True Tapped holes used with screwed-in eyebolts should have a minimum depth of how many times the bolt diameter? - 1 1/2 A(n) _______is a machined metal slot in a shaft and...

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  • August 13, 2024
  • 6
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • boilermaker 4

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  • BOILERMAKER 4
  • BOILERMAKER 4

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BOILERMAKER 4
Slip blinds used in a hydrostatic test must meet or exceed the engineering specifications for all flanges in
the system. - True



Tapped holes used with screwed-in eyebolts should have a minimum depth of how many times the bolt
diameter? - 1 1/2



A(n) _______is a machined metal slot in a shaft and on parts such as gears and pulleys that accept a key.
- Keyway



A(n)__________ fits into a keyway and prevents parts such as gears or pulleys from rotating

on a shaft. - Key



______ are established standards for machining threads. - Thread standards



A chain sling should be discarded if any portion

of the chain is worn by____ - 15 percent or more



A hook that is hooked 1/4 off center can theoretically carry about what percent of the rated load? -
86



A one-handed signal that is given with the fist in front of the body and the thumb pointing toward the
signaler's body means - extend the boom



A tag line should be attached to a load where it will give the____ - greatest mechanical advantage



After reaching 50 percent of the desired test pressure during a hydrostatic test, increase the test
pressure in increments of__ - 10 percent

, An approximation of the diameter of a screw is known as the screw's_______ - Nominal size



An excessive number of trays in a tower will

result in _______. - excessive pressure drops across the tower



Custom-fabricated spreader and equalizer I beams should be tested at what percent of their rated
capacity? - 125



Dredging and other marine work require what type of slings because they withstand corrosion better? -
Chain



Fasteners with ____________ thread are used when rapid assembly or disassembly of parts is required. -
United National Coarse (UNC) thread



Heat that can be detected by touch is called _______ - sensible heat



How many Btus are needed to change water

into steam? - 970



If it is apparent that the crane operator has misunderstood a hand signal, the signal person should___ -
signal the operator to stop



In a forced draft system, a fan pushes the air into the_____. - tube sheet



In which type of feed combination does an extra feed appear in the bottom product stream? -
Extractive



L



Figure 1

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