January Final Exam Review

The opposition of electron flow is called?

Resistance

Another name for electron flow is?

Current

I = E÷R, is the formula to solve for?

Current

Threaded Fasteners are?

Screws, Bolts

Non-Threaded Fasteners are?

Blind/Pop Rivets, Tie Wraps

UNC (Unified National Coarse) is used for what?

Quick assembly or disassembly

UNF (Unified National Fine) is used for what?

Finer thread for a tighter fit

UNEF (Unified National Extra Fine) is used for what?

Used on thin wall

A Jam Nut screw is used for?

Jamming two nuts in place.

A Castellated Nut is used for?

Stops loosening

An Acorn nut is used for?

Appealing appearance

A Wing nut is used for?

Rapid tightening and loosening without a tool

A Fender washer purpose is?

Keep bolt and nuts from pulling through oversized holes.

A Lock washer purpose is?

Keep bolt and nuts from working loose.

A Flat washer purpose is?

used under bolt and nuts to spread pressure

A Lip washer purpose is?

Provide a small raised edge for spacing, alignment or sealing around fastener.

Atomic particles which are positively charged are called?

Protons

Atomic particles which are negatively charged are called?

Electrons

A charged atom is called?

Ions

The particle found in the outer most orbit of an atom is called?

Valence electron

Materials which the atoms electrons flow easily are called?

Conductors

Materials which the atoms electrons do not flow easily are called?

Insulators

The force that causes electrons to move is called?

Voltage

When time is not a factor, the rate of doing work is measured in?

Watts

Work being done by a machine is called?

Electrical Power

Horse power is equal to how many watts?

746 watts

The center of an atom is called the?

Nucleus

The particles found inside the center of the atoms are called?

Protons and Neutrons

The particles of an atom which are found in the orbital paths are called?

Electrons

R = E ÷ I, is the formula to solve for?

Resistence

E = I * R, is the formula to solve for?

Voltage

When using an ammeter, the resistor setting must be set to?

0 (Zero)

When using a voltmeter, the resistor setting must be set to?

High resistance level

Characteristics of an ohmmeter is?

Measure resistance, test for continuity

The rate of doing work is called?

Power

When time is a factor, the rate of doing work is measured in?

Volts * Amps

Black is what number resistor?

0

Brown is what number resistor?

1

Red is what number resistor?

2

Orange is what number resistor?

3

Yellow is what number resistor?

4

Green is what number resistor?

5

Blue is what number resistor?

6

Purple is what number resistor?

7

Gray is what number resistor?

8

White is what number resistor?

9

Silver is what percentage?

10%

Gold is what percentage?

5%

Does Gold or Silver give the bigger number?

Gold