237. Translate the underline term:

To increase the violence of power

a) произведение

b) трение

c) мощность

d) сила

238. Choose the suitable word into word combination:

The temperature influences the …

a) power

b) resistance

c) strength

d) dislodge

239. Translate the following word combinations into English:

Стремится удержать

a) to contain

b) to offer

c) to tend to keep

d) to compare the results

240. Choose the suitable general question for the sentence:

Condenser are great practical use.

a) Do condenser great practical use?

b) Does condenser great practical use?

c) Is condenser great practical use?

d) Are condenser great practical use?

241. Choose the right answer:

… indicates the amount of the electric current

a) voltmeter

b) galvanometer

c) ammeter

d) wattmeter

242. Translate the following word combinations into English:

Превышение количества потребляемой мощности

a) to increase the number of absorbed violence

b) to exceed the amount of consuming power

c) to rise the quantity of developed power

d) to double volume of radiating force

243. Choose the suitable word for sentence:

The spread-out portion of the pole core permits the magnetic flux to enter the … core over a wider area.

a) coil

b) armature

c) core

d) case

244. Translate the following word combinations into English:

Сравнительно низкое сопротивление проводника

a) rather small opposition in the capacitor

b) comparatively low resistance of the conductor

c) enough low voltage of the semiconductor

d) essential small violence in condenser

245. Choose the sentence with right order:

Landing/ requires/night/ powerful/ forward/ illumination

a) *Night illumination requires powerful forward landing.

b) Powerful landing night illumination requires forward.

c) Night landing requires powerful forward illumination

d) Forward night landing requires powerful illumination

246. Choose the right answer:

The resistance creates of the … of the electrons with atoms.

a) collisions

b) motions

c) frictions

d) charges

247. Choose the right answer:

All rotating electric generators consists of … main parts.

a) 5

b) 4

c) 2

d) 3

248. Choose the right answer:

To measure the power of the dc circuit with ….

a) voltmeter and wattmeter

b) ammeter and galvanometer

c) ammeter and voltmeter

d) wattmeter and ammeter

249. Choose the right answer:

… are materials in which the valence-ring electrons stick tightly to the nucleus.

a) conductors

b) insulators

c) semiconductors

d) capacitors

250. Complete the sentence with necessary articles:

These forces tend … keep the electrons … the orbits … which they revolve … the nucleus … tremendous speeds.

a) for, of, from, at, on

b) for, with, for, of, at

c) of, from, at, to, with

d) to, on, on, around, at

251. Complete the sentence with necessary words:

The … is complex particle in which tiny electrons move around a nucleus.

a) electron

b) proton

c) atom

d) molecule

252 Choose the right answer:

When we are measuring the rate of flow of electric current we should use ...

a) ammeter

b) wattmeter

c) galvanometer

d) voltmeter