Electronics Engineering Coaching Materials: Section 4 Module 4

This is the Section 4 Module 4 of the compiled Electronics Coaching Materials taken from different sources including but not limited to Electronics books, past Board Exams Questions, Journals and the Internet.

Electronics Coaching Materials: Section 4 Module 4

This is the Section 4 Module 4 of the compiled Electronics Coaching Materials taken from different sources including but not limited to Electronics books, past Board Exams Questions, Journals and other Electronics References. This particular Coaching Notes in Electronics Engineering has random Questions and Answers in random topics. Make sure to familiarize each questions to increase the chance of passing the ECE Board Exam.

Electronics Engineering Coaching: Section 4 Module 4

LOGIC / COMPUTER

1. The size of an empty folder is approximately ____________.

1KB

2. 8086 is a ___ bit microprocessor.

16 bit

3. The average latency of magnetic tape memory is _____ seconds

60 seconds

4. A program that lies in between the application software and computer hardware.

OPERATING PROGRAM

5. (Some computer descriptions..) Computer handles: I-Input devices, II-Processor, III-Output devices, IV-Storage

I, II, III AND IV

6. Which of the the ff. is not a fundamental features of computer

SPEED, HIGH COST, RELIABILITY, STORAGE CAPACITY

7. Signal that the computer is awaiting a command from the user

PROMPT

8. Pulse counter accelerometer is only used at what kind of computers?

DIGITAL COMPUTERS

9. Supercomputers are measured in terms of ____

FLOPS (FLOATING POINT OPERATIONS PER SECOND)

10. Main program of operating system

KERNEL

11. In computer, file size is measured in _

BYTES

12. Time between the user’s request and the computer’s reply

RESPONSE TIME

13. Most common application for accessing the internet

BROWSER

14. Desktop and personal computers are also known as

MICROCOMPUTERS

15. Computer user which is not a personal user is also called

END USER

16. In computer system, central processing unit is part of the?

HARDWARE

17. Which is not a local storage device?

PCI STATUS REGISTER

18. Confining each program at certain defined limits in memory is called _____________.

MEMORY PROTECTION

19. Fundamental characteristics of computer

I. SPEED

II. RELIABILITY

III. STORAGE CAPABILITY

I, II, III

20. The use of byte to store two numerals

PACKED BCD

21. Term used to describe the first remainder when converting decimal numbers to other bases

LSD

22. Type of IC that is needed to be physically removed to change the data…

EPROM

23. What is the output if the input of a RS flipflop is R = low, S = high?

LOW

24. In positive edge triggering, the change of state occurs when

THE PULSE LEVEL IS GOING FROM LOW TO HIGH

25. Major cause of frequency error in counters

COUNT-HOLD CIRCUIT

26. PDA means

PERSONAL DIGITAL ASSISTANT

27. Free cable technology…that people can surf… e-mail..

WI-FI

28. An ultra-speed and long range connection intended for houses and businesses that are not reachable by cables.

WiMax

29. MAGNETIC BUBBLE DISK, RAM, MAGNETIC DISK, FLOPPY DISK

30. The input of an OR gate is inverted by a not gate the resulting gate is a

NAND

31. If the input of OR gates are connected with NOT gates, the output will be the same as _____

NAND GATE

32. In 74LSXX, LS means ____

LOW POWER SCHOTTKY

33. All logic gates is made of ____

TRANSISTOR

34. Advantage of JK to RS FlipFlop.

PREDICTABLE OUTPUT

INSTRUMENTATION

(Test / Measurements, AC/DC Bridges)

1. Process of determining the magnitude of a .… standards

MEASUREMENT

2. A technique that detects the presence or absence of a feature. It has also simple mechanical probe and vision system.

AUTOMATED INSPECTION

3. Equilibria which is present between two different states of matter can be represented by what graphical diagram?

PHASE DIAGRAM

4. In damage electronic components, what is the minimum electrostatic?

37

5. Common type of meter movement.

D’ ARSONOVAL MOVEMENT

6. Combination of Voltmeter, Milliameter, and Ohmmeter

VOM

7. Instrumentation amplifiers are used in

HIGH-NOISE ENVIRONMENT

8. Most accurate device for measuring dc voltages

DIFFERENTIAL VOLTMETER

9. How do you increase the range of voltmeter?

INSERT HIGH RESISTANCE IN SERIES

10. Device used to measure power

WATTMETER

11. A special type of magnetomotive use to measure the earth’s ……..

KEW MAGNETOMOTIVE

12. To remove the insulation in a wire, what tool is use?

WIRE STRIPPER

13. It is sometimes called as Maxwell-Wien bridge used to measure inductance using known capacitance

MAXWELL BRIDGE

14. Sometimes called as Maxwell-Wien bridge that is used to measure unknown inductance with capacitance standard

MAXWELL BRIDGE

15. A contact used to remove lead resistance on the accuracy of measurement

KELVIN CONTACT

16. Test to locate the ground fault in a single cable

BLAVIER’S TEST

17. Horizontal displacement in oscilloscope CRT is measured in___________.

TIME PER VOLT DIVISION

18. In time-domain oscilloscope, the wave to be analyzed is applied to _______.

VERTICAL DEFLECTION PLATES OR COILS

19. What does OMR stands for?

OPTICAL MARK RECOGNITION

20. To increase the range of a voltmeter one must insert a high resistance in ______

SERIES

21. Torque produced with the effects of voltage or current in an instrument

DEFLECTING TORQUE

22. Test equipment that continuously monitors performance and automatically isolates faults to removable assemblies is what category equipment?

ON-LINE

23. When a wire is insulated with glass braid or asbestos and requires stripping, which of the following tools should not be used?

HOT-BLADE STRIPPER

24. Because its resistance changes very little temperature changes, what conductor is best suited for use in measuring instruments?

MANGANIN

25. Instrument used to monitor/measure animals’ activities (i.e., PH…)

RADIO PILL

INDUSTRIAL ELECTRONICS

(Thyristors, SCR, optoisolator, optocoupler…)

1. Outermost spectrum of the broadest LED

100 nm

2. A unit that is used to derive the quantity called absorbed dose.

RAD

3. Application of biometry are the following except

a. INVESTIGATION

b. authentication

c. identification

d. verification

4. Biometry is used in:

AUTHENTICATION; IDENTIFICATION; VERIFICATION

5. A PN junction of a point (a) to ……. Point (b).. of an SCR.

EMITTER, EMITTER

6. The minimum current needed by SCR to maintain its conducting state

HOLDING CURRENT

7. TRIAC voltage capacity in volts?

1000 V

8. The typical turn-off voltage of a MOS controlled thyristor or MCT

15 V

9. In motor action, the firing angle of an SCR is used. What % of the power is transferred?

95 %

10. Source of energy of IRED

ELECTRON CHANGE OF POTENTIAL

11. Intermediate junction of the wires in thermocouples.

COLD-JUNCTION EFFFECT

12. Most commonly used metal in metallization process

ALUMINUM

13. The process of making a material “passive” in relation to another material and use the material together

PASSIVATION

14. Printed circuit board is mainly damaged by______________.

REMOVAL OF THE COMPONENTS

SYNCHROS, SERVOS, GYROS

1. If the synchro has loose bearing_____________.

REPLACE THE SYNCHRO

2. Advantage of multispeed synchro over single speed synchro.

GREATER ACCURACY

3. The arrow on the synchro schematic symbol indicates the

ANGULAR POSITION OF THE ROTOR

4. Minimum number of synchros required to make a simple synchro system

2

5. Minimum number of syncro for a syncro system

2

6. Indicating device installed in the stator circuit of the torque in synchro . . .

OVERLOAD INDICATOR

7. In synchro alignment the purpose of coarse setting

TO MAINTAIN 0 DEGREES RATHER THAN 180 DEGREES

8. Number of direction a rate gyro is free to precess

TWO

9. For a gyro to be universally mounted, it must have ___ gimbals.

TWO (2)

10. In gyro to be universally mounted, must have _____ gimbals.

2

11. What gyro characteristic provides the bases of the operation at a rate gyro?

PRECESSION

12. In order to have a smooth and efficient servo system, the two factors need to be balance

AMPLIFICATION AND DAMPING

13. Synchro capacitance is use to _____ in synchro system

IMPROVE ACCURACY

14. A device that can be used as a position sensor in a servo system

POTENTIOMETER

15. Used as position sensor of servo system

POTENTIOMETER

Complete List of Electronics Engineering Coaching Materials


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