TestWizard - �� қ��

��: �� қ��

��

1. Transmission of energy in the form of electricity have important economic __.
1) disadvantages
2) advances
3) systems
4) advantages
2. What does the central station of power system consist of?
1) a steam
2) a device
3) a wire
4) a prime mover
3. What do electric power systems include?
1) wires
2) devices
3) cables
4) generators
4. Mankind __ the transformer
1) invented
2) reduced
3) discovered
4) produced
5. Wires __ electric energy
1) convert
2) develop
3) transmit
4) reduce
6. To reduce the current people __ transformers
1) using
2) uses
3) used
4) use
7. Power stations __ electric energy
1) produced
2) produces
3) produce
4) producing
8. Electric energy __ by power station
1) will be produced
2) will produced
3) are produced
4) is produced
9. People ___ the waste of electric energy
1) have decreased
2) has decreased
3) can be decreased
4) can be converted
10. Heating losses ___ by scientists
1) can reduced
2) had reduced
3) can be reduced
4) are reduced
11. We�ll have taken our exams _____ this time next month.
1) during
2) on
3) for
4) by
12. Make up possible phrases with the word �work�.
1) easy
2) data
3) flat
4) hard
13. It is well known that high voltage __ low current
1) meant
2) mean
3) means
4) meaning
14. Mechanical energy ___ into electric one
1) can be converted
2) converted
3) converts
4) can converted
15. Scientists ___ heating losses
1) reduces
2) reducing
3) will reduce
4) can reduce
16. later, the range of transmission ___ to a few miles
1) expands
2) expanded
3) expanding
4) was expanded
17. It is possible to __ mechanical energy into electrical energy
1) converted
2) convert
3) converting
4) converts
18. It is possible to convert mechanical energy __ electrical energy
1) by
2) into
3) at
4) in
19. High-voltage transmission systems composed _ wires of copper
1) at
2) in
3) of
4) by
20. The central station of a power system __ of a prime mover
1) consisting
2) consists
3) consisted
4) consist
21. What is a laser
1) a material can be treated with a laser
2) a material can be treated with a laser
3) a device is not producing a beam of light
4) a device moving a beam of light
22. The laser beam must heat the fuel to __.
1) the required temperature
2) the controlled temperature
3) the high temperature
4) the low temperature
23. A laser can find __application
1) narrow
2) easy
3) wide
4) difficult
24. To develop a laser system in practice is __ task
1) not an easy
2) bad
3) easy
4) good
25. What light is produced by a laser
1) light color
2) light of pure single color
3) light all color
4) light of single color
26. The longer the wire, the greater is its __ to current flow.
1) resistance
2) conduct
3) reduce
4) expand
27. Power lines ___ into transmission and distribution ones
1) are divided
2) divides
3) divide
4) is divided
28. High-voltage overhead conductors are not covered _ insulation
1) by
2) at
3) in
4) on
29. Electricity _ __ at high voltages
1) transmitted
2) is transmitted
3) transmit
4) are transmitted
30. Power lines are divided into transmission and ___ ones
1) wire
2) distribution
3) resistance
4) conductor
31. The longer the __, the greater is its resistance to current flow
1) wire
2) conduct
3) expand
4) reduce
32. Electricity is transmitted __ high voltages
1) at
2) by
3) in
4) on
33. Electric energy is produced __ power station
1) by
2) at
3) on
4) in
34. Each stage of the system ___ at an appropriate voltage
1) are operated
2) operated
3) can be operated
4) is operated
35. Transmission of energy in the form of __ have economic advantages
1) electricity
2) conductor
3) voltage
4) wire
36. It is dangerous to use power __ very high voltages
1) with
2) at
3) in
4) by
37. Wires _ __ to require too much material
1) is calculated
2) calculates
3) are calculated
4) calculate
38. Transformers _ _ the voltage to a distribution level
1) step up
2) step down
3) high
4) low
39. Each stage of the system can be operated __ an appropriate voltage
1) at
2) under
3) in
4) by
40. Heating losses can be produced __ scientists
1) over
2) in
3) at
4) by
41. The invention of a steam engine ___ by the first industrial revolution
1) follow
2) are followed
3) was followed
4) follows
42. Many scientists made a contribution __ nuclear engineering
1) in
2) to
3) into
4) at
43. ____________ tomorrow, so we can go out somewhere
1) I don�t work
2) I�m not working
3) I shall not work
4) I won�t work
44. _________ doesn�t understand this grammar rule
1) Who
2) What
3) Where
4) When
45. Basic engineering subjects _________ in the first and second years
1) studied
2) are studied
3) study
4) is studied
46. More than a million students _________ to the institutes and universities of this country last year
1) enrolled
2) enrolls
3) were enrolled
4) enroll
47. Entrance exams _________ in summer
1) hold
2) are held
3) holds
4) held
48. We _________ a technical text now
1) translates
2) translate
3) is translating
4) are translating
49. Is it _________ to study at the institute than at school
1) very interesting
2) more interesting
3) not interesting
4) interesting
50. _________ is the answer to my question
1) Why not
2) Who
3) How
4) What
51. Who was the first physicist to describe the first machine for producing an electric charge?
1) Charles Augustin de Coulomb
2) Luigi Galvani
3) Otto von Guericke
4) Charles Fransois de Cisternay Du Fay
52. Who proved the identity of the atmospheric electricity with the electrostatic charge on a Leyden jar?
1) Benjamin Franklin
2) Alessandro Volta
3) Luigi Galvani
4) Joseph Priestley
53. Who was responsible for the theory of electric lines of force?
1) Thomas Edison
2) James Clerk
3) Michael Faraday
4) Alessandro Volta
54. When was demonstrated that the magnetic field exist around the electric current?
1) 1891
2) 1819
3) 1918
4) 1971
55. What was the name of the first scientist who made clear the two different types of electric charge?
1) James Clerk Maxwell
2) Luigi Galvani and Alessandro Volta
3) James Prescott Joule
4) Charles Fransois de Cisternay Du Fay
56. When did Volta announce the first artificial electrochemical source of potential difference, a form of electric battery?
1) in 1800
2) in 1700
3) in 1600
4) in 1900
57. What are the names of American engineers and inventors who pioneered the widespread use of electricity as a source of power?
1) All of them
2) Charles Proteus Steinmetz
3) Thomas Alva Edison
4) Nikola Tesla
58. What is an automatic device which senses an abnormal condition of electrical circuit and closes its contacts?
1) A battery
2) A circuit
3) A current
4) A relay
59. Ceramics _______ temperatures up to 1,000 �C
1) detect
2) adjust
3) apply
4) withstand
60. What type of relay is an electrically operated switch, that has no moving parts?
1) a static relay
2) a protection relay
3) a mechanical relay
4) an electromagnetic relay
61. What relays are used an electromagnetic coil to open or close the circuit?
1) Electromagnetic relays
2) Operating relays
3) Mechanical relays
4) Static relays
62. How is the impedance or corresponding distance called?
1) Protection of the relay
2) Power of the relay
3) Reach of the relay
4) Function of the relay
63. Who invented the Relay?
1) Joseph Henry
2) Alexander Bell
3) Elon Musk
4) Thomas Edison
64. When was invented the Relay?
1) 1845
2) 1865
3) 1835
4) 1875
65. What was invented to measure accurately the force exerted by electrical charges?
1) a conductor
2) a battery
3) a torsion balance
4) an insulator
66. Complete the sentence: There are two different types of electric charge �
1) negative and positive
2) black and white
3) soft and hard
4) heavy and light
67. Complete the sentence: An electric charge distributes itself uniformly over the surface of �
1) flat piece of wood
2) a Leyden jar
3) magnetic field
4) hollow metal sphere
68. Put the missing word: Electric circuits obey the law of �
1) gravitation
2) Onne�s law
3) energy conservation
4) Newton
69. Put the missing word: The properties of electromagnetic waves and light are �
1) controversial
2) positive
3) identical
4) negative
70. Complete the sentence: A magnetic field exists around �
1) in a coil
2) electric current flow
3) storage battery
4) the neighborhood
71. What is a flow of electric charge?
1) Power Source
2) Parallel circuit
3) Electric current
4) Series circuit
72. The complete path that an electric current travel along is �.
1) Conductor
2) Circuit
3) Flow
4) Fuse
73. A complete circuit through which electricity flows is �...
1) Parallel circuit
2) Series circuit
3) Closed circuit
4) Open circuit
74. The origin of the energy needed to make things go (battery) is �.
1) Electrical energy
2) Electric current
3) Closed circuit
4) Power Source
75. A material that allows heat and electricity to pass through it is �...
1) Insulator
2) Circuit
3) Conductor
4) Fuse
76. A circuit that contains more than one path for current flow is �.
1) Parallel circuit
2) Open circuit
3) Closed circuit
4) Series circuit
77. Find the Term: An incomplete electrical circuit in which no current flows.
1) Closed circuit
2) Series circuit
3) Open circuit
4) Parallel circuit
78. An electric circuit with a single path is �.
1) Series circuit
2) Open circuit
3) Closed circuit
4) Parallel circuit
79. A safety device consisting of a strip of wire that melts and breaks an electric circuit if the current exceeds a safe level. What is it?
1) Circuit
2) Fuse
3) Conductor
4) Insulator
80. To move or travel smoothly in a certain direction is �.
1) Insulator
2) Fuse
3) Flow
4) Circuit
81. Energy caused by the movement of electrons is �.
1) Power Source
2) Electric current
3) Electrical energy
4) Closed circuit
82. A material that does not allow heat or electrons to move through it easily. What is it?
1) Conductor
2) Fuse
3) Circuit
4) Insulator
83. A glass bulb which provides light by passing an electrical current through a filament. What is it?
1) Buzzer
2) Cell
3) Bulb
4) Battery
84. A single unit that converts chemical energy into electrical energy is �.
1) Cell
2) Battery
3) Buzzer
4) Bulb
85. Find the Term: An electrical device that makes a buzzing noise.
1) Cell
2) Buzzer
3) Battery
4) Bulb
86. Find the Term: The measurements of how much electricity is flowing through a circuit.
1) Volts
2) Bulbs
3) Amps
4) Circuits
87. Find the Term: One or more cells where chemical energy is converted into electricity.
1) Battery
2) Bulb
3) Cell
4) Buzzer
88. Find the Term: A unit of electrical force.
1) Circuits
2) Amps
3) Volts
4) Bulbs
89. Find the Term: Any device used to interrupt the flow of electrons in a circuit.
1) Switch
2) Conductor
3) Current
4) Circuit
90. Michael Faraday was a well-known _______.
1) German physicist
2) French physicist
3) English physicist
4) Italian physicist
91. Look, you _____ trample the toy
1) are going to
2) will be
3) will
4) been
92. Henry is _____________ about his English test results
1) worrying
2) be worry
3) worried
4) worry
93. An electric current passing along a wire _______ that wire.
1) will heat
2) cool
3) will damage
4) will cool
94. Current passes through conductors _________.
1) difficulty
2) hard
3) with great difficulty
4) easily
95. Dad ____ be 50 on Friday.
1) will
2) are going to
3) will be
4) been
96. We ____ arrive at the party on time if we take the bus.
1) are
2) are going to
3) is going to
4) will
97. The firemen are clearing the ruins of the _______________ building.
1) burn
2) burning
3) burned
4) burnt
98. Put the missing word: He __ twenty minutes for the bus yesterday
1) waits
2) was wait
3) waited
4) did wait
99. apply (synonym)
1) regulate
2) passable
3) mean
4) use
100. Ok! I ____ lend you the house.
1) are
2) am going to
3) is
4) will
101. German physicist ________, who discovered the law in 1827.
1) George Simon Ohm
2) Alessandro Volta
3) Charles Augustin de Coulomb
4) Hendrik Antoon Lorentz
102. The charges _________ each other.
1) raised
2) neutralize
3) connected
4) flow
103. �At first I didn�t like my job, but _________ to enjoy it now.
1) I begin
2) I was beginning
3) I�m beginning
4) I began
104. Sally has been working here ___ .
1) since six months
2) six months later
3) for six months
4) six months ago
105. Two equally and oppositely charged bodies are connected by a ________
1) metallic conductor
2) voltage
3) atoms
4) electrons
106. I ____ football when I ____ my sister
1) is playing, saw
2) play, see
3) am playing, saw
4) was playing, saw
107. �Lighting� means ______
1) electric lamps
2) power, energy produced
3) things done by man
4) a small factory
108. The temperature of the wire is ________.
1) raised
2) stated
3) produced
4) expressed
109. Magnetism is produced__________.
1) by the voltage
2) magnet
3) by the current
4) by the resistance
110. I ____ just received my parcel from Amazon
1) have
2) was
3) had
4) has
111. The ______ supplies direct current which is similar to the current from a battery:
1) assembly
2) generator
3) switch
4) alternator
112. Current passes through conductors _____.
1) easily
2) with great difficulty
3) difficulty
4) difficult
113. My dad ____ a newspaper at the moment
1) was watched
2) is reading
3) reads
4) was reading
114. He _______ already finished his English test
1) is
2) have
3) are
4) has
115. _____ a lot of beautiful buildings here
1) There was
2) There
3) There are
4) There is
116. I ____ just received my parcel from Amazon.
1) was
2) had
3) have
4) has
117. I am speaking to my teacher _____
1) now
2) tomorrow
3) yet
4) yesterday
118. When I was young, I ______run very fast
1) could
2) can
3) cant
4) can�t
119. It is ___________ to imagine our civilization without ________
1) possible, environment
2) possible, economic
3) impossible, energy
4) impossible, electricity
120. Antonym for the word �noiseless�.
1) aerial
2) a dream
3) overall
4) noisy
121. What_____ to wear to the party tonight?
1) is you going
2) was you going
3) shall you going
4) are you going
122. _____ to buy some books tomorrow.
1) I was going
2) She bought
3) I am going
4) He buys
123. Experiments proved that electricity _____travel instantly over a very long piece of wire.
1) should
2) could
3) ought to
4) needed
124. I ____ just received my parcel from Amazon
1) have
2) was
3) has
4) had
125. ______ tomorrow, so we can go out somewhere
1) I shall not work
2) I�m not working
3) I don�t work
4) I won�t work
126. Next week she ____ in London.
1) is
2) went
3) will be
4) cycle
127. What ____to wear to the party tonight?
1) was you going
2) are you going
3) shall you going
4) is you going
128. ____ to watch TV this evening?
1) Were is going
2) She is going
3) Shall she goes
4) Is she going
129. ____to buy some books tomorrow.
1) he buys
2) she bought
3) I was going
4) I am going
130. She _____ to visit her relatives in Turkey this summer.
1) are going
2) Is going
3) were going
4) went
131. They _________ in England for twenty years.
1) are living
2) live
3) have lived
4) lives
132. We _________ a technical text now.
1) translates
2) translate
3) is translating
4) are translating
133. Magnetism___________in the oldest writings of man.
1) is mentioned
2) is mentioning
3) mentions
4) mentioned
134. Nobody knew who______magnetism.
1) discovered
2) was discovered
3) is discovered
4) discover
135. A great step forward in the scientific study of magnetism___by Gilbert.
1) make
2) was made
3) made
4) makes
136. He ___-that the Earth itself was a great magnet.
1) proved
2) proves
3) prove
4) was proved
137. When iron and steel are magnetized, the molecules _____ themselves.
1) arrange
2) arranged
3) is arranged
4) is arrange
138. A metal wire carrying a current will almost always be at_________.
1) a low temperature
2) high degrees
3) 0 degrees
4) a higher temperature
139. An electric current passing along a wire ______ that wire.
1) will damage
2) heat
3) cool
4) will heat
140. The unfamiliar substance was called Magnus after its discovery as __________.
1) �Megnet�
2) � Magnet �
3) �Mugnet�
4) �Mognet
141. ______ from the point of lowest potential to the point of highest potential
1) Electrons flow
2) current
3) voltage
4) resistance
142. A magnetized pointer (usually marked on the North end) within a compass, free to align itself with the Earth's magnetic field.
1) direct current
2) Electron
3) compass needle
4) resistance
143. A body which possess charge
1) charged bodies
2) resistance
3) electron
4) direct current
144. An electric current flowing in one direction only.
1) direct current
2) electron
3) resistance
4) current
145. _______ is a stream of charged particles, such as electrons or ions, moving through an electrical conductor or space
1) direct current
2) resistance
3) electric current
4) electron
146. Make (something) ineffective by applying an opposite force or effect
1) Electron
2) Neutralize
3) Charged bodies
4) direct current
147. These are the metals which contain free electron for conduction of electricity hence _________ is a good conductor of heat and electricity
1) charged bodies
2) resistance
3) current
4) metallic conductors
148. ______ is a charge that exists in a body that has fewer electrons than protons
1) Electron
2) Positively charged
3) Resistance
4) charged bodies
149. ________ is a measure of the opposition to current flow in an electrical circuit
1) Resistance
2) Direct current
3) Electron
4) Charged bodies
150. ________ is a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
1) Electron
2) Current
3) Charged bodies
4) Resistance

����: ������ ����қ���

������ ��������

��: �� қ��

��