What type of wrench is used to provide mechanical advantage when opening and closing valves?
A. Pipe wrench
B. Impact wrench
C. Torque wrench
D. Valve wheel wrench
A. Incorrect. A pipe wrench is an adjustable wrench that contains two serrated jaws designed to grip and turn pipes or other items with a rounded surface.
B. Incorrect. An impact wrench is a pneumatically or electrically powered wrench that uses repeated blows from small internal hammers that generate torque to tighten or loosen fasteners.
C. Incorrect. Torque wrenches are manual wrenches that use a gauge to indicate the amount of torque (rotational force) being applied to the nut or bolt.
D. Correct. Valve wheel wrenches are used to provide mechanical advantage when opening and closing valves.
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