07 - Tools and Supplies

Question 1

——- What is a wrench? ——-

Answer 1

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!)

Question 2

What is a socket wrench?

Answer 2

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.

Question 3

What is a box ended wrench? What is an open end wrench?

Answer 3

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.

Question 4

What is an adjustable wrench?

Answer 4

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.

Question 5

What are pipe wrenches?

Answer 5

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.

Question 6

What are hex key wrenches?

Answer 6

Hex key wrenches are small hand tools with differently sized hexagonal shafts that grip matching hexagonal indents in the heads of screws.

Question 7

What is a refrigeration service valve wrench?

Answer 7

A refrigeration service valve wrench is needed to turn a service valve’s stem.

Question 8

What is a torque wrench?

Answer 8

Torque wrenches are usually only wrench handles with a pressure gauge.

Question 9

——- What is a Hammer? ——-

Answer 9

A hammer is a hand tool consisting of a long handle attached to a hard head used for pounding or striking.

Question 10

——- What is a Mallet? ——-

Answer 10

A mallet is a type of small hammer used for safely striking parts.

Question 11

——- What are pliers? ——-

Answer 11

Pliers are multipurpose hand tools that are often used for bending, gripping, and cutting.

Question 12

What are combination (slip-joint) pliers?

Answer 12

Combination (slip-joint) pliers are size-adjustable pliers that are handy for general use, however, should not be used on nuts, bolts, or fittings.

Question 13

What are cutting pliers?

Answer 13

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.

Question 14

——- What is a Screwdriver? ——-

Answer 14

A screwdriver is a hand tool consisting of a handle, shaft, and a head with a sized and shaped tip, used for turning screws.

Question 15

——- What is a Vise? ——-

Answer 15

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.

Question 16

——- What is a twist drill bit? ——-

Answer 16

A twist drill bit is frequently used for installation and repair work. They are used to create holes in a variety of different materials.

Question 17

——- What is a hole saw? ——-

Answer 17

A hole saw allows a technician to drill large holes through walls of different materials.

Question 18

——- What is a cold chisel? ——-

Answer 18

A cold chisel is a narrow metal tool with a beveled edge for cutting through various materials.

Question 19

——- What is a punch? ——-

Answer 19

The term punch refers to a broad category of cylindrical tools used for a variety of functions.

Question 20

What is a center punch?

Answer 20

A center punch is used for center punching the location of a hold to be drilled.

Question 21

What is a drift punch?

Answer 21

A drift punch is used to drive out keys and to line up holes in mating surfaces.

Question 22

What is a pin punch?

Answer 22

A pin punch is used for driving retainer pins in or out.

Question 23

What is a prick punch/scratch awl?

Answer 23

It has a long, sharp point and is used only for layout work.

Question 24

——- What is a file? ——-

Answer 24

Files are hand tools with cutting ridges, or teeth, used to clean and shape metal surfaces.

Question 25

What is a single cut fiile?

Answer 25

Single cut files have teeth cut in one direction

Question 26

What is a double cut file?

Answer 26

Double cut files have teeth cut in two directions.

Question 27

——- What is a hacksaw? ——-

Answer 27

A hacksaw is used for cuttings tubing and for other work requiring metal cutting.

Question 28

——- What is a level? ——-

Answer 28

A level is a tool used to set a line at level, plumb, or perfect 45 angle.

Question 29

What is a thermometer?

Answer 29

A thermometer is an instrument for measuring temperature.

Question 30

What is a manometer?

Answer 30

A manometer is a type of pressure gauge that measures values around atmospheric pressure.

Question 31

What is a multimeter?

Answer 31

A multimeter is a single instrument that comprises a collection of meters measuring different electrical variables.

Question 32

What is a gasket?

Answer 32

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.