Boiler Room Operations

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Questions and Answers

Hand drill size refers to the maximum __________ which will fit in the chuck.

drill size

A screwdriver having a square tip is known as __________ type.

a robertson

After properly attaching wire rope to a piece of equipment using clips, the rope strength as compared to the original uncut rope will be:

  • 80% (correct)
  • 50%
  • 33%
  • 25%

When an operator notices signs of a tube leak on a steam boiler after shutting down the boiler, they should:

<p>close the steam stop valve on the outlet (B)</p> Signup and view all the answers

The force of escaping fluids from a boiler can cause:

<p>erosion (D)</p> Signup and view all the answers

What could be used to clean the orifice of an oil burner nozzle?

<p>a toothpick (A)</p> Signup and view all the answers

Hammers larger than 1 kilogram are referred to as:

<p>sledge (D)</p> Signup and view all the answers

A substance, which will absorb humidity inside a boiler during dry lay-up is:

<p>activated alumina (A)</p> Signup and view all the answers

A gas that is used for 'capping' a boiler is:

<p>nitrogen (D)</p> Signup and view all the answers

Just before entering the waterside of the boiler it is important to:

<p>test the atmosphere (C)</p> Signup and view all the answers

When placing adjoining scaffolding planking it must overlap by __________ cm:

<p>30</p> Signup and view all the answers

Castle nuts are used:

<p>with a split pin (D)</p> Signup and view all the answers

Small ropes up to 2.5 cm are usually measured by:

<p>diameter (A)</p> Signup and view all the answers

When calculating the mass of a heavy object is important to have an __________ accuracy as compared to a light object:

<p>greater (D)</p> Signup and view all the answers

When a Phillips, Allen or Robertson screwdriver becomes worn or damaged it should be:

<p>discarded (D)</p> Signup and view all the answers

Jurisdictions require scaffolds to be designed and erected to meet:

<p>CSA Standard CAN/CSA S269.2 (B)</p> Signup and view all the answers

Machine bolts are most commonly supplied with:

<p>hexagon heads (D)</p> Signup and view all the answers

The proper way to hold a file is to grip a file handle against the palm with the other hand's fingers curled around the point. The filing action should be in a forward motion only and the speed should be:

<p>10-20 strokes per minute (B)</p> Signup and view all the answers

When joining two ropes of different diameters what know would be used?

<p>sheet bend (D)</p> Signup and view all the answers

Natural ropes are made of:

<p>manila (C)</p> Signup and view all the answers

A type of bolt commonly used in electrical equipment with a square nut would be:

<p>stove bolt (A)</p> Signup and view all the answers

Why must a cutting fluid be used when drilling holes?

<p>to keep the drill bit tip cool (A)</p> Signup and view all the answers

A black light crack detection utilizes ultraviolet light and:

<p>fluorescent penetrant (B)</p> Signup and view all the answers

The device that may use ropes, cables, slings or chains to raise or lower a heavy object is an:

<p>hoist (C)</p> Signup and view all the answers

The part of a pedestal mounted drill press that spindle rotates in is called the:

<p>quill (C)</p> Signup and view all the answers

Fixed grinders such as bench grinders can be used to remove material or to:

<p>sharpen tools (A)</p> Signup and view all the answers

What is the purpose of the 'toe plate' or 'toe guard' on a scaffold?

<p>to prevent objects from rolling off (C)</p> Signup and view all the answers

The most common wire rope strand for hoisting is made from a number of wires laid:

<p>left handed (A)</p> Signup and view all the answers

Three types of drills you may be called on to use are the hand drill, the bench drill and the:

<p>floor drill (D)</p> Signup and view all the answers

When should ladders be inspected?

<p>before every use (C)</p> Signup and view all the answers

A tap drill size can be selected from a chart or by subtracting the __________ from the nominal diameter of the thread.

<p>Pitch (B)</p> Signup and view all the answers

A danger when using a hand drill on a ladder is that the operator can lose their balance if the drill:

<p>jams (A)</p> Signup and view all the answers

A collet is:

<p>a holder for a thread die (D)</p> Signup and view all the answers

What is a torque wrench used for?

<p>to tighten nut, bolts, etc. to a specific turning force (A)</p> Signup and view all the answers

To remove boiler scale, chelates are more expensive than acids but:

<p>they can be used without taking the boiler out of service (B)</p> Signup and view all the answers

A boiler circulating pump gland should have a few drops a minute leakage:

<p>to prevent the packing from drying out (B)</p> Signup and view all the answers

The purpose of annealing tube ends is:

<p>to soften the tube ends (B)</p> Signup and view all the answers

To remove carbon build up in oil burners which of the following tools would be used?

<p>brass wire brush (A)</p> Signup and view all the answers

When scribing lines, copper sulphate may be used:

<p>as a marking material (B)</p> Signup and view all the answers

A ball peen hammer is sometimes referred to as:

<p>a machinist's hammer (B)</p> Signup and view all the answers

Flashcards

Hand drill size

The maximum drill bit size that can be held by the chuck of a hand drill.

Robertson Screwdriver

A screwdriver with a square tip, commonly used in North America.

Wire Rope Strength with Clips

After attaching wire rope with clips, the remaining rope strength is approximately 80% of the original uncut rope.

Tube Leak Response

Close the steam stop valve on the outlet.

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Erosion

The wearing away of material due to the impact of escaping fluids.

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Cleaning Oil Burner Nozzle

A common tool for cleaning the orifice of an oil burner nozzle is a toothpick.

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Sledge Hammer

Hammers weighing more than 1 kilogram.

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Activated Alumina in Boilers

Activated alumina is used to absorb humidity inside a boiler during dry lay-up.

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Boiler Capping Gas

Nitrogen is used for 'capping' a boiler.

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Pre-Entry Boiler Check

It is important to test the atmosphere before entering the waterside of a boiler.

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Scaffolding Planking Overlap

Adjoining scaffolding planking must overlap by at least 30 cm.

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Castle Nuts Use

Castle nuts are used with a split pin for secure fastening.

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Measuring Small Ropes

Small ropes, up to 2.5 cm, are usually measured by their diameter.

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Mass Calculation

When calculating mass, greater accuracy.

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Worn Screwdriver

When a screwdriver is damaged, discard.

Signup and view all the flashcards

Study Notes

  • Hand drill size refers to the maximum drill size which will fit in the chuck.
  • A screwdriver having a square tip is known as a Robertson type.
  • After properly attaching wire rope to a piece of equipment using clips, the rope strength as compared to the original uncut rope will be 80%.
  • When an operator notices signs of a tube leak on a steam boiler after shutting down the boiler, they should close the steam stop valve on the outlet.
  • The force of escaping fluids from a boiler can cause erosion.
  • A toothpick could be used to clean the orifice of an oil burner nozzle.
  • Hammers larger than 1 kilogram are referred to as a sledge.
  • A substance, which will absorb humidity inside a boiler during dry lay-up, is activated alumina.
  • A gas that is used for "capping" a boiler is nitrogen.
  • Just before entering the waterside of the boiler it is important to test the atmosphere.
  • When placing adjoining scaffolding planking it must overlap by 30 cm.
  • Castle nuts are used with a split pin.
  • Small ropes up to 2.5 cm are usually measured by diameter.
  • When calculating the mass of a heavy object it is important to have greater accuracy as compared to a light object.
  • When a Phillips, Allen or Robertson screwdriver becomes worn or damaged it should be discarded.
  • Jurisdictions require scaffolds to be designed and erected to meet the CSA Standard CAN/CSA S269.2.
  • Machine bolts are most commonly supplied with hexagon heads.
  • The proper way to hold a file is to grip a file handle against the palm with the other hand's fingers curled around the point and the filing action should be in a forward motion only and the speed should be 30-40 strokes per minute.
  • When joining two ropes of different diameters a sheet bend knot would be used.
  • Natural ropes are made of manila.
  • A type of bolt commonly used in electrical equipment with a square nut would be a stove bolt.
  • A cutting fluid must be used when drilling holes to keep the drill bit tip cool.
  • A black light crack detection utilizes ultraviolet light and fluorescent penetrant.
  • The device that may use ropes, cables, slings or chains to raise or lower a heavy object is a hoist.
  • The part of a pedestal mounted drill press that the spindle rotates in is called the quill.
  • Fixed grinders such as bench grinders can be used to sharpen tools.
  • The purpose of the "toe plate" or "toe guard" on a scaffold is to prevent objects from rolling off.
  • The most common wire rope strand for hoisting is made from a number of wires laid left-handed.
  • Three types of drills may be the hand drill, the bench drill and the floor drill.
  • Ladders should be inspected before every use.
  • A tap drill size can be selected from a chart or by subtracting the pitch from the nominal diameter of the thread.
  • A danger when using a hand drill on a ladder is that the operator can lose their balance if the drill jams.
  • A collet is a holder for a thread die.
  • A torque wrench is used to tighten nuts, bolts, etc. to a specific turning force.
  • To remove boiler scale, chelates are more expensive than acids but they can be used without taking the boiler out of service.
  • A boiler circulating pump gland should have a few drops a minute leakage to prevent the packing from drying out.
  • The purpose of annealing tube ends is to soften the tube ends.
  • To remove carbon build up in oil burners a brass wire brush would be used.
  • When scribing lines, copper sulphate may be used as a marking material.
  • A ball peen hammer is sometimes referred to as a machinist's hammer.

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