07 - Tools and Supplies Flashcards
——- What is a wrench? ——-
A wrench is a hand tool with fixed or movable jaws that can be used to grip or turn nuts, bolts, or other objects.
(Always pull rather than push!)
What is a socket wrench?
A socket wrench consists of a handle with a socket heat on one end. The socket head has a ratcheting square shaft that can hold a variety of sockets.
What is a box ended wrench? What is an open end wrench?
A box end wrench is a type of wrench that has an enclosed gripping head that is placed around a nut or bolt. Often, a box end wrench can be used in tight spots where a socket wrench cannot fit.
An open end wrench is a type of wrench that has a gripping head with an opening so the head can be slid on the nut or bolt head from the side. These wrenches are used in close spaces and on unions.
What is an adjustable wrench?
An adjustable wrench is a wrench with gripping jaws that can be moved to form the desired size opening. Odd-sized nuts and bolts are often found in refrigeration work. Therefor, wrenches with adjustable jaws are necessary.
What are pipe wrenches?
Pipe wrenches are wrenches designed to grip pipes, studs, and other cylindrical surfaces.
Internal pipe wrenches can also be used to install pipes, nipples, or fittings.
What are hex key wrenches?
Hex key wrenches are small hand tools with differently sized hexagonal shafts that grip matching hexagonal indents in the heads of screws.
What is a refrigeration service valve wrench?
A refrigeration service valve wrench is needed to turn a service valve’s stem.
What is a torque wrench?
Torque wrenches are usually only wrench handles with a pressure gauge.
——- What is a Hammer? ——-
A hammer is a hand tool consisting of a long handle attached to a hard head used for pounding or striking.
——- What is a Mallet? ——-
A mallet is a type of small hammer used for safely striking parts.
——- What are pliers? ——-
Pliers are multipurpose hand tools that are often used for bending, gripping, and cutting.
What are combination (slip-joint) pliers?
Combination (slip-joint) pliers are size-adjustable pliers that are handy for general use, however, should not be used on nuts, bolts, or fittings.
What are cutting pliers?
Cutting pliers are pliers with jaws that can be used for cutting various materials. Lineman pliers are a powerful cutting and gripping tool. Diagonal pliers have jaws angled for use in close quarters for a nearly flush cut.
——- What is a Screwdriver? ——-
A screwdriver is a hand tool consisting of a handle, shaft, and a head with a sized and shaped tip, used for turning screws.
——- What is a Vise? ——-
A vise is a clamping apparatus that opens and closes using a screw mechanism. A vise is particularly convenient for holding parts while drilling, filing, or assembling.
——- What is a twist drill bit? ——-
A twist drill bit is frequently used for installation and repair work. They are used to create holes in a variety of different materials.
——- What is a hole saw? ——-
A hole saw allows a technician to drill large holes through walls of different materials.
——- What is a cold chisel? ——-
A cold chisel is a narrow metal tool with a beveled edge for cutting through various materials.
——- What is a punch? ——-
The term punch refers to a broad category of cylindrical tools used for a variety of functions.
What is a center punch?
A center punch is used for center punching the location of a hold to be drilled.
What is a drift punch?
A drift punch is used to drive out keys and to line up holes in mating surfaces.
What is a pin punch?
A pin punch is used for driving retainer pins in or out.
What is a prick punch/scratch awl?
It has a long, sharp point and is used only for layout work.
——- What is a file? ——-
Files are hand tools with cutting ridges, or teeth, used to clean and shape metal surfaces.
What is a single cut fiile?
Single cut files have teeth cut in one direction
What is a double cut file?
Double cut files have teeth cut in two directions.
——- What is a hacksaw? ——-
A hacksaw is used for cuttings tubing and for other work requiring metal cutting.
——- What is a level? ——-
A level is a tool used to set a line at level, plumb, or perfect 45 angle.
What is a thermometer?
A thermometer is an instrument for measuring temperature.
What is a manometer?
A manometer is a type of pressure gauge that measures values around atmospheric pressure.
What is a multimeter?
A multimeter is a single instrument that comprises a collection of meters measuring different electrical variables.
What is a gasket?
Gaskets are of Gaskets are placed between the mating surfaces of parts being connected. As the joints are tightened, the gaskets are compressed. Gaskets, being soft, conform to the irregularities in the mating surfaces and seal the joints. They keep refrigerant from leaking out, prevent oil leakage, and keep air out of the system. Gaskets are commonly used between the valve plate and the compressor body, between the service valve and the compressor body, and between the valve plate and the compressor head.
