NEETS 4 - Electrical Conductors

What is the best conductor?

What is a single slender rod or filament of drawn metal called?

Which type of wire is suitable for carrying an electric current?

Which type of conductor is composed of a group of wires or of any combination of groups of wires?

Only about what percent of the conductivity of copper does aluminum have?

What is cotton cloth that has been coated with an insulating varnish known as?

What is the thinnest insulating coating that can be applied to wires?

Which type of cable was developed to meet the needs of a noncombustible, high heat-resistant, and water-resistant cable?

Which material is commonly used only in special classes of service and is made as a solid felted covering for a cable?

What are the two types of metallic wire protection?

Which unit of measurement is used to determine the cross-sectional area of a square or rectangular conductor?

What is the standard unit of measurement of a round wire cross-sectional area?

What can be done to increase the flexibility of wire?

What is the resistance in ohms offered by a unit volume (the circular-mil-foot or the centimeter cube) of a substance to the flow of electric current?

What is the reciprocal of conductivity?

What is the most common method of measuring wire size in the Navy?

What prepares tables showing the safe current ratings for sizes and types of conductors covered with various types of insulation?

What are generally referred to as "insulators" or "insulating material."?

Which standard has the National Electrical Code (NEC) adopted as the minimum requirements for rubber insulation as specified by Underwriters' Laboratories?

How many different types of asbestos wire does the NEC have designators for?

Which wire property is used to determine what size is needed for a given load, or current drain?

What is the resistance to current leakage through the insulation materials called?

Which rubber compound does not carry the "R" designator for many of its applications?

What type of wire is used on the coils of meters, relays, small transformers, motor windings, and so forth?

Lead-sheathed cable is one of three types currently being used: alloy lead, pure lead, and what else?

What are the two most commonly used conductors?

What can insulation resistance be measured with that wont damage the insulation?

What is one of the most common types of plastic insulating materials?

What is the discharge of electricity from the wire when it has a high potential called?

Which type of fibers have been found to cause severe lung damage and cancer of the gastrointestinal tract?

Insulation resistance along with what else are the two fundamental properties of insulating materials?

Latex rubber is a high-grade compound consisting of what percent of unmilled grainless rubber?

What serves as a satisfactory insulation for extremely high-voltage cables when it is impregnated with a high grade of mineral oil?

What is the ability of an insulator to withstand potential difference?

What is normally used for low- or medium-range voltage?

Varnished cambric and paper insulation for cables are the two types of insulating materials most widely used at voltages above how many volts?

What is a high-temperature insulation used extensively in aircraft and equipment installations?

How many degrees celsius is Fluorinated Ethylene Propylene (FEP) rated at?

Up to how many electrical conductors does MI cable have?

What are the two categories of materials that make up the protection for a wire or cable?

What is by far the most common type of nonmetallic material used to protect wires and cables?

What is defined as two concentric wires, cylindrical in shape, separated by a dielectric of some type?