Journeyman Plumber ExamTools, Equipment, and SafetyMedium

A plumber is installing a water heater in a cramped utility closet. To ensure proper and safe tightening of pipe connections in a limited space, which tool is best suited for this task?

  1. AA chain wrench
  2. BA large pipe wrench (18-inch or larger)
  3. CA strap wrench
  4. DA basin wrench
Show answer & explanation

Correct answer: C. A strap wrench

A strap wrench uses a durable strap to grip pipes without marring the surface and can be adjusted for various pipe sizes. Its flexible nature and ability to grip in tight spots make it ideal for cramped utility closets where larger, rigid wrenches might not fit or could damage finished surfaces.

Why the other options are wrong

  • A. Chain wrenches are effective for large-diameter pipes or stubborn fittings but are often too cumbersome for tight spaces and can scratch surfaces.
  • B. Large pipe wrenches are bulky and unsuitable for cramped spaces, and they can mar pipe surfaces.
  • D. Basin wrenches are specifically designed for tightening nuts on faucets and sinks in very tight under-sink areas, not for general pipe connections.

Strap Wrench

A wrench that uses a strong, flexible strap to grip and turn pipes or fittings, preventing surface damage.

  • Non-marring grip
  • Adjustable for various pipe sizes
  • Effective in confined spaces
  • Requires sufficient strap length for grip

Memory trick: Strap it tight, don't scratch it right.

More Tools, Equipment, and Safety questions