Biplane

The most popular type of wing its swept wing(стреловидное). That is, when we look at the wing from above it is located at an angle to the vertical axis of the aircraft.The main advantage of a wing is its high lift coefficient.

Also located on the wing flaps , slats, and spoilers are used to control the lifting power and usually produced during takeoff and landing.

2)

Capacity is the maximum amount of electricity that can flow through an appliance.

Overcurrent is a surge of power that occurs when an electrical current exceeds a circuits amperage capacity.

Hot bus is the part of an electrical system that receives electrcity from an electrical meter and delivers it to the service panel.

Neutral bus is the part of an electrical system that carries a current back to the service panel after the power has been spent.

Билет 18

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2)

1) Types of receptacle boxes:

1) outlet box is a container that holds the plug in for electrical connections

2) pancake box is a thin round receptacle box

3) handy box is a metal box that is sometimes used as substitute receptacle box

4) integral nail box is a lower- priced receptacle box that already has nail holes

5) cut in box is a receptacle box that is used in a wall that has already been built.

Metal and Plastic Electrical Boxes(that holds wires)

Round Pan Electrical Box(Plastic box may used for outlet mounting)

Octagon and Round Electrical Box(May be used as a junction box, outlet or switch box)

Ceiling Fan-Rated Electrical Box (used for ceiling fan mounting, May be a round or octagon shape)

4-Inch Square Box (Commonly used as junction boxes with solid covers.

Square boxes may be installed in ceilings or walls for lighting fixtures, switches, or receptacles)

Electrical Box Covers (Covers are used to enclose an outlet box)

Box Extenders(Box extenders or extension rings are like boxes with no back; they are installed onto the front of standard electrical boxes to increase the box capacity)

Билет 19

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Билет 20

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Timer switch that goes on and off at certain time

2)

A well-equipped set of tools is needed for us to do some kind of work at home or in the garage or somewhere else. Also, the toolset helps us not to lose our tools, so the tools do not deteriorate because they are stored in a dry place.

The basic set of tools should consist of:

• Screwdriver set

• Claw Hammer

• Pliers

• Adjustable Wrench

• Tape Measure

• Level

• Utility Knife

• Flashlight

• Electric Drill

• Hacksaw

Билет 21

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2) Landing gear is component of airpalne that support and provide mobility on land, or any surface , helps helps for landing or takeoff.The landing gear consist of wheels, struts, bracing, shock absorbers and others associated devices.There are nose wheel and tail wheels. Landing gear can be wheels, skis, or floats.

On the small aircraft undercarriage is always in a released state because they fly at low speed. Faster aircraft usually have retractable undercarriages, which fold away during flight to reduce air resistance or drag.

Also in the landing involved the mechanization of the wing is flaps , slats and spoilers.Which help to slow down the aircraft.For the brakes use of reverse thrust engines.This is when an output device of the engine is closed and napravlenie thrust changes and it helps to further slow the aircraft.

Билет 22

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Monoplane: The wing may be mounted at various positions relative to the fuselage:

Low wing; Mid wing; High wing.