Equipment and Tools Knowledge Flashcards

What is the primary purpose of a pipe alignment clamp when joining flanged connections?

Answer: To hold mating flanges in proper axial alignment during bolting

Pipe alignment clamps hold flanges in correct axial and angular alignment so bolts can be installed without binding or inducing stress.

A chain pipe vise is preferred over a yoke vise when working with pipe larger than approximately:

Answer: 4 inches

Chain vises accommodate large-diameter pipe (typically above 4 inches) because the chain wraps around the pipe rather than relying on fixed jaw width.

Which type of pipe cutter is specifically designed for use in confined spaces where a full rotation cannot be made?

Answer: Oscillating pipe cutter

An oscillating (or ratchet-action) pipe cutter advances the cutting wheel with back-and-forth strokes, allowing use where full rotation is impossible.

When using an oxyacetylene torch for brazing copper piping in a steam system, the flame type should be:

Answer: Neutral flame

A neutral flame provides clean heat without adding excess carbon or oxygen, preventing oxidation of the copper and filler metal.

A hydraulic pipe bender is used instead of a mechanical bender primarily because it:

Answer: Generates greater force allowing bending of heavier-wall pipe

Hydraulic force multiplies operator input significantly, enabling bends in heavy-wall or large-diameter steel pipe that mechanical benders cannot handle.

What tool is used to verify that a newly cut pipe end is perfectly square (90° to the pipe axis)?

Answer: Combination square against the pipe OD

A combination square's blade is held against the outside diameter of the pipe; a gap indicates the cut is not square to the axis.

Which hand tool is used to remove burrs from the inside diameter of a freshly cut pipe?

Answer: Half-round file or reamer

A half-round file or dedicated pipe reamer removes the interior burr created by cutting, which could otherwise restrict flow or catch debris.