General energy. Synergy tests (answers 100 points)

Product description

General energy. Test answers Synergy (100 points). The answers are highlighted in the file. The questions are listed below:

Condensing turbines are used to produce….

only mechanical energy and then converting it into electrical energy

thermal energy and converting it into mechanical

only electrical energy

electrical and thermal energy

—

Capacitor banks in electrical networks can be used for ....

generation of reactive power in the network nodes (cross compensation)

reduction of reactance of lines (longitudinal compensation)

increase in reactance of lines (longitudinal compensation

—

It is not true that jet turbines by design can….

rotary vane

radial-axial

propeller axial

two-feathered

diagonal

—

Internal workshop networks perform ... scheme

always radial

always on the highway

always mixed

by radial, main or mixed

—

Before fuel is supplied to the furnace, it is prepared, and the most complex is the system for preparing ... fuel

liquid

solid

gaseous

—

is a device designed to automatically turn on and off de-energized circuits

Separator

short circuit

Disconnector

Circuit breaker

—

The ratio of the number of turns of the primary winding to the number of turns of the secondary winding is called the coefficient ... ..

useful action

transformation

proportionate excess

—

At nuclear power plants (NPPs) in high-power fluidized-bed channel-type reactors (RBMK), light water is ... ..

coolant moderator

both coolant and moderator

—

To terminate cables with plastic insulation for outdoor installation, use ... ...

terminations with a metal body and porcelain insulators of the KNCh and KMA types

end seal with epoxy compound type KVE

elastomer couplings with epoxy body and elastomer insulators type PKNR

—

Blind neutral grounding is used for installations with voltage

35-750 kV.

50 kV

110 kV and above

220 kV

—

The voltage between the ground electrode and a point on the earth's surface is called step voltage ... ..

touch voltage

primary voltage

breakdown voltage

—

In a three-phase network, the phases of a capacitor bank are connected ...

star or triangle

only in a star

only in an incomplete star

—

The dimension of an overhead power line is ...

the shortest distance from the bottom of the wire to the ground (water, roadbed)

overhead line distance between two nearest anchor posts overhead line length

the greatest distance from the top of the wire to the ground

—

The first domestic Obninsk nuclear power plant (NPP) was commissioned in …

1951

1961

1973

1979

—

It is not true that the brand of the cable indicates information about it -

designs

manufacturer's rated voltage

number and cross section of cores

—

To warn personnel about the occurrence of a ground fault, insulation control is used by measuring ... voltages

single-phase

two-phase

three-phase

—

In gas-graphite reactors at nuclear power plants (NPPs), the moderator is O gas (helium, carbon dioxide)

graphite

liquid metal (sodium)

light water

—

The increase in the operating voltage of the capacitor banks is achieved by ... connected capacitors

increasing the number in succession

decreasing the number successively

increasing the number in parallel

—

An energy system is a collection of...

machines, devices, lines and auxiliary equipment intended for the production, transformation, transmission, distribution of electricity and its conversion into another type of energy

interconnected electrical installations intended for the production, transmission and distribution of electricity

power stations, boiler houses, electric and heat networks interconnected and connected by a common mode in the continuous process of production, conversion and distribution of electricity and heat with the general management of these modes

Additional information

It is not true that by the number of cars they distinguish ... diagrams of units of pumped storage power plants (PSPP)

single-machine

two-machine

three-machine

four-machine

—

The heating cycle is used on …

combined heat and power plants (CHP)

gas turbine units (GTU)

state district power plants (GRES)

—

Neutrals of electrical installations are called ...

common points of three-phase windings of generators or transformers connected in a star

a conductive part or a collection of interconnected conductive parts that are in electrical contact with earth, directly or through an intermediate conductive medium

conductors combining the functions of zero protective and zero working conductors

—

is a switching device designed to create an artificial short circuit in an electrical circuit

Separator

short circuit

Disconnector

Circuit breaker

—

The coefficient ... is calculated as the ratio of the maximum calculated to the installed power ks = Pmax / RU

loading the electrical receiver

demand

use of installed capacity

—

In the double-circuit scheme of a nuclear power plant (NPP), radioactivity contains ...

only in the first circuit, and not in the second

only in the second circuit, and not in the first

both in the first and in the second circuit

—

On overhead power lines, to change the order of the wires on the support, ... special supports are used

transpositional

branch

transitional

—

Fuses ... actions

are disposable devices.

are reusable devices

are both disposable and reusable

—

It is not true that the use of compensating devices allows ...

ensure reactive power balance

reduce losses in the electrical network

reduce corona losses

provide voltage regulation

—

In a drum-type steam boiler, steam is collected ... steel drum

in the lower part

at the top

over the entire surface of the walls

—

Electrical energy is supplied ... to the transformer winding

to primary

to secondary

both primary and secondary