Trờng đại học kỹ thuật công nghiệp
Khoa khoa học cơ bản
Bộ môn: Ngoại ngữ
ngân hàng câu hỏi thi kết thúc học phần
học phần: tiếng anh kỹ thuật
(3 tín chỉ)
Dùng cho đào tạo bậc đại học theo học chế tín chỉ
các ngành điện và điện tử
Thái nguyên 8/2007
1. NỘI DUNG ĐÁNH GIÁ THI KẾT THÚC HỌC PHẦN
UNIT 1: Conductors, insulators and semiconductors
Reading:
- True or False
- Rephrasing
- Contextual reference
- Summarizing
Use of language:
- Description of shapes, positions and connections, experiments
- Relative clauses
- Passive voice
Writing:
- Writing instructions
- Sentence / Paragraph building
UNIT 2: Circuit elements
Reading:
- True or False
- Rephrasing
- Contextual reference
- Summarizing
Use of language:
- Description of function, purpose

UNIT 6: Logic gates
Reading:
- Finding out facts
- Summarizing
Use of language:
- Making predictions
Writing:
- Grouping sentences
2. PHƯƠNG PHÁP ĐÁNH GIÁ
- Tự luận
- Hình thức thi viết (thời gian:90’)
3. NGUYÊN TẮC TỔ HỢP CÂU HỎI ĐỂ LÀM ĐỀ THI KẾT THÚC HỌC PHẦN
- Nguyên tắc:
+ Kết hợp giữa các phần câu hỏi
+ Một đề thi bao gồm 4 loại câu hỏi: 6 câu loại 1, 4 câu loại 2, 6 câu loại 3, 5
câu loại 4.
+ Câu hỏi loại 3 được tổ hợp từ các loại 3a, 3b, 3c; mỗi loại 2 câu
- Thang điểm:
+ Câu hỏi loại 1: 3 điểm (6 câu hỏi đọc hiểu, mỗi câu 0,5điểm)
+ Câu hỏi loại 2: 0,25 điểm
+ Câu hỏi loại 3: 0,5 điểm
+ Câu hỏi loại 4: 0,5 điểm
- Loại câu hỏi:
+ Câu hỏi loại 1: Read the following passage and answer the questions below.
+ Câu hỏi loại 2: Choose the best word to fill in the gaps.
+ Câu hỏi loại 3: Rewrite the following sentences without changing the meanings.
+ Câu hỏi loại 4: Give the correct form of the word in brackets.
4. NGÂN HÀNG CÂU HỎI
4.1.Câu hỏi loại 1
1. ELECTRIC MOTOR

energized in turn, the rotor aligns itself with the magnetic field produced by the energized field
winding. Unlike a synchronous motor, in its application, the motor may not rotate
continuously; instead, it "steps" from one position to the next as field windings are energized
and de-energized in sequence. Depending on the sequence, the rotor may turn forwards or
backwards.
Simple stepper motor drivers entirely energize or entirely de-energize the field windings,
leading the rotor to "cog" to a limited number of positions; more sophisticated drivers can
proportionally control the power to the field windings, allowing the rotors to position
"between" the "cog" points and thereby rotate extremely smoothly. Computer controlled
stepper motors are one of the most versatile forms of positioning systems, particularly when
part of a digital servo-controlled system.
Stepper motors can be rotated to a specific angle with ease, and hence stepper motors are used
in pre-gigabyte era computer disk drives, where the precision they offered was adequate for
the correct positioning of the read/write head of a hard disk drive. As drive density increased,
the precision limitations of stepper motors made them obsolete for hard drives, thus newer
hard disk drives use read/write head control systems based on voice coils.
Questions:
1. To what are stepper motors closely related in design?
2. Why does the rotor align itself with the magnetic field produced by the energized field
winding?
3. Does the motor rotate continuously?
4. What are one of the most versatile forms of positioning systems?
5. Where are stepper motors are used?
6. What are the read/write head control systems of newer hard disk drives based on?
3. Dynamo
The Dynamo was the first electrical generator capable of delivering power for industry. The
dynamo uses electromagnetic principles to convert mechanical rotation into an alternating
electric current. A dynamo machine consists of a stationary structure which generates a strong
magnetic field, and a set of rotating windings which turn within that field. On small machines
the magnetic field may be provided by a permanent magnet; larger machines have the

To most electronic engineers, the terms "digital circuit", "digital system" and "logic" are
interchangeable in the context of digital circuits.
Advantages of Digital electronics
The usual advantages of digital circuits when compared to analog circuits are:
- Digital systems interface well with computers and are easy to control with software. It is
often possible to add new features to a digital system without changing hardware, and to do
this remotely, just by uploading new software. Design errors or bugs can be worked-around
with a software upgrade, after the product is in customer hands.
- Information storage can be much easier in digital systems than in analog ones. In particular,
the great noise-immunity of digital systems makes it possible to store data and retrieve it later
without degradation. In an analog system, aging and wear and tear will degrade the
information in storage, but in a digital system, as long as the wear and tear is below a certain
level, the information can be recovered perfectly.
Questions:
1. What are digital electronics?
2. How can more complex systems be created?
3. Is the complex system of digital electronics collectively referred to as a digital circuit ?
4. How many advantages mentioned in the text do digital circuits have when compared to
analog circuits?
5. What can design errors or bugs be worked-around with?
6. When can the information be recovered perfectly?
5. Circuit breaker
A circuit breaker is an automatically-operated electrical switch designed to protect an
electrical circuit from damage caused by overload or short circuit. Unlike a fuse, which
operates once and then has to be replaced, a circuit breaker can be reset (either manually or
automatically) to resume normal operation. Circuit breakers are made in varying sizes, from
small devices that protect an individual household appliance up to large switchgear designed
to protect high voltage circuits feeding an entire city.
Types of circuit breaker
There are many different technologies used in circuit breakers and they do not always fall into

Applications of a digital-to-analog converter
- Audio
Most modern audio signals are stored in digital form (for example MP3s and CDs) and in
order to be heard through speakers they must be converted into an analog signal. DACs are
therefore found in CD players, digital music players, and PC sound cards.
Specialist stand-alone DACs can also be found in high-end hi-fi systems. These normally take
the digital output of a CD player (or dedicated transport) and convert the signal into a line-
level output that can then be fed into a pre-amplifier stage. Some of these can also be made to
interface with computers using a USB interface.
- Video
Video signals from a digital source, such as a computer, must be converted to analog form if
they are to be displayed on an analog monitor. As of 2007, analog inputs are more commonly
used than digital, but this may change as flat panel displays with DVI and/or HDMI
connections become more widespread. A video DAC is, however, incorporated in any Digital
Video Player with analog outputs. The DAC is usually integrated with some memory (RAM),
which contains conversion tables for gamma correction, contrast and brightness, to make a
device called a RAMDAC.
Questions:
1. What is the function of a digital-to-analog converter ?
2. Which field is a digital-to-analog converter applied?
3. How are most modern audio signals stored?
4. What does These mean?
5. What must be done if video signals from a digital source are to be displayed on an analog
monitor?
6. What is a RAMDAC?
4.2 Câu hỏi loại 2
1. ……………. is usually measured in microfarads or picofarads.
2. ……………. are used in temperature-sensing devices.
3. If we connect a battery across a body, there is a ………… of free electrons towards the
positive end.

→ The coil
2. Carbon resistors are made of compressed graphite. The graphite is formed into small tubes.
→ Carbon resistors
3. An alternating current changes from positive to negative in each cycle. This cycle is
repeated 50 or 60 times per second in most AC systems.
→ An alternating current
4. Leaking electrolyte may damage the equipment. The cells are installed in the equipment.
→ Leaking electrolyte
5. The error sensor output is fed to the controller. The controller sends a signal to the power
supply of the motor.
→ The error sensor output
6. A simple controller is an electromagnetic relay. It uses a small signal to control a much
larger signal such as a power supply output.
→ A simple controller
7. On leaving the electron gun, the beam passes through two sets of plates. These plates are at
right angles to each other.
→ On leaving the electron gun, the beam
II. Loại 3b
1. The electrolysis of salt water generates chlorine.
→ Chlorine
2. We use thermistors in temperature-sensing devices because their resistance falls rapidly as
their temperature rises.
→ Thermistors
3. We connect the negative pole of the battery to earth.
→ The negative pole
4. A circuit breaker can protect circuits from excessive currents.
→ Circuits
5. Manufacturers can design motors to run on direct or alternating current. → Motors
6. Springs hold carbon brushes in contact with the commutator.
→ Carbon brushes

Generator A device which converts mechanical energy into electrical
energy
Alternating current A current which flows first in one direction, then in the
other
Direct current A current which flows in one direction only
Resistor A device which is used to add resistance to a circuit
Light meter An instrument which measures light
Ammeter An instrument which measures current
Electric motor A device which converts electrical energy into mechanical
energy
Electrolysis A process in which an electric current can separate a
chemical compound into its components.
Solar cell An electric cell which converts sunlight into electrical
energy
DC motor A machine which runs on direct current and is used to
convert electrical energy into mechanical energy
Capacitance A quantity which is measured in farad, microfarad or
picofarad
Battery A device which changes chemical energy into electrical
energy
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