Electronics Engineering Coaching Materials: Section 3 Module 4

(Last Updated On: April 3, 2018)

This is the Section 3 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 Electronic 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 3 Module 4

TESTS AND MEASUREMENTS

1. Absorption meter is used to check the _____ of transmitter.

– OUTPUT FREQUENCY

2. acceleration transducer also known

– ACCELEROMETER

3. measures the intensity of light radiation from any part of the sky

PYRANOMETER

4. sensing element made from a thin-walled tube formed into deep convolutions and sealed at —

ONE END BELLOW

5. Another term for acceleration transducer.

Accelerometer

6. Measure the angle of slope, slope. . .

– CLINOMETER

7. _____ oscilloscope that uses sampling technique in processing signal that has frequency beyond its normal range.

SAMPLING OSCILLOSCOPE

8. In analog oscilloscope, steps in accommodating the incoming signals are:

Attenuating signal

Time base

Triggering the oscillator

9. difference bet the oscillator frequency and the unknown frequency

– BEAT FREQUENCY

10. In ohmmeter, if the anode is connected to the negative probe and the cathode is connected to the positive probe, the reading is

– INFINITE RESISTANCE

11. An instrument in which the deflection gives the magnitude of electrical quantity measured directly

– SECONDARY INSTRUMENT

12. What provides a visual presentation of any wave form applied to the input terminals

CATHODE RAY OSCILLOSCOPE

13. The element in the CRT that emits electron when indirectly heated by the filament

CATHODE

14. consists of two coils, one is fixed and one coil is free to rotate

ELECTRODYNAMOMETER

15. Part of the D’Arsonval meter that controls the current

– HAIRSPRING

16. D’Arsonval meter can be converted to audio frequency AC ammeter by adding ____ in the circuit.

– RECTIFIER

17. measure resistance

– WHEATSTONE OR RESISTANCE BRIDGE

18. A high sensitive galvanometer used in physics laboratory

MOVING- MAGNET

19. A method using Wheatstone bridge to determine the distance from the test point to a fault in a telephone or telegraph line or cable

VARLEY LOOP TEST

20. Bridge independent in frequency

– ANDERSON/ANDERSEN BRIDGE

21. What type of maintenance is used to isolate troubles by means of test techniques and practices that realign or readjust equipment or otherwise bring the equipment back up to proper performance?

– CORRECTIVE MAINTENANCE

22. solder gun

– FILE THE TIP SMOOTH AND RETIN IT

23. Fractured soldered joints are caused by movement of soldered parts during ______ process. –

COOLING

24. component of D’Arsonval meter movement completes the circuit for current flow to the coil

HAIRSPRING

25. most common RF oscillators

HARTLEY & COLPITTS

26. It display pattern of oscilloscopes with steady characteristics

– LISSAJOUS

27. Indicating instrument that indicates where the object is oriented

– SELSYN

28. A series RC combination in one arm and a parallel RC combination in a joining arm

– WIEN BRIDGE

29. Characterizes and Locate faults in the metallic cable such as twisted pair

– TIME DOMAIN REFLECTOMETER

30. In meter movement, how do you prevent the meter from oscillation and overswing?

– DAMPING

31. An is used to measure the resistance between the base-emitter, base-collector, collector-emitter

– OHMMETER

32. device sweeps the band of frequencies to determine frequencies and amplitudes of each frequency component

– SPECTRUM SYNTHESIZER

33. In transistor during the active load, the configuration of the emitter- base is ________ and the base- collector is _____________???

Reverse and forward

34. Use to measure resistance of emitter-base, base-collector, emitter-collector resistance of a transistor

– TRANSISTOR JUNCTION RESISTANCE TEST

35. The ability of spectrum analyzer to resolve signals is dependent on

– NARROWEST BANDWIDTH

36. Equipment check

– PREVENTIVE MAINTENANCE

37. measurement of temperature by electronic means.. greater range than mercury–

– THERMOMETERS PYROMETER

38. An instrument that measures the time of flow of fluid

– SAYBOLT

39. watt-hour meter is an ___.

– INTEGRATING INSTRUMENT

40. The efficiency of class A amplifier can be improved by ___________load

– TRANSFORMER COUPLED

41. 70% efficiency

– CLASS B PUSH-PULL

42. In an inverting amplifier, the close loop gain is equal to the feedback resistance divided by the

INPUT RESISTANCE

43. Class C amplifiers can never be linear because _____.

CLASS C AMPLIFIERS ARE ALWAYS NON-LINEAR

MICROELECTRONICS

1. The fan-in in logic gate is equal to the number of _____.

INPUT TERMINAL

2. The value of the input voltage that switches the output of the comparator or Schmitt trigger.

–TRIP POINT

3. The unit of Voltage gain of an amplifier is

Db

4. Used in IC manufacturing to remove organic materials.

ACETONE

5. Element that penetrates the semiconductor substrate

DIFFUSED IC

6. Type of PCB that is most complex to build and most difficult to repair.

LAYER BUILD-UP

7. The process of developing thin film IC in which the substrate is heated in a furnace

THERMAL GROWTH

8. ______of an oscillator is the pushing rate expressed in megahertz per volts

PUSHING FIGURE

9. ratio of mark and space interval

1:1

10. In IC fabrication, gold and aluminum bonding wires are used to connect the circuit to the ______.

PACKAGING LEADS

11. … output of _____ feedback

TYPE 1

12. Method of achieving thin film in IC manufacturing for deposition of oxides, nitrides and pyrocrystalline. –

CHEMICAL VAPOR DEPOSITION

13. D-MOSFETS have what type of doped channel

HEAVILY

14. Multiple thermocouple in series used to increase sensitivity and accuracy

THERMOPILE

15. A type of sensor element that are used for frequencies greater than 100 GHz

THERMOCOUPLE SENSOR

16. Four arm circuit used to measure the unknown electrical constants

BRIDGE

17. Op-amps are widely used because its _____ characteristics can be varied to suit various applications.

EXTERNAL

18. Depositing of material. . .

WAFER

19. The bridge that determine the unknown capacitance by comparing the standard capacitance is ____ bridge

DE SAUTY BRIDGE

20. Determine the orientation of an object

SELYSYN

21. A six-branch modification of Maxwell Bridge, used to measure self-inductance in terms of capacitance and resistance

ANDERSON BRIDGE

22. The maximum change of rate of output voltage in an op-amp with respect to the input signal.

SLEW RATE

23. Maximum velocity can that an actuator can move

SLEW RATE

24. The depletion region of MOSFET must be in what bias

REVERSE

25. discrete samples of the signal are taken by the digital oscilloscope –

REAL-TIME SAMPLING

26. The detection by a robot though contact of touch, force, pattern slip and movement. It allows for the determination of local shape, orientation and feedback forces of a grasped workspace.-

TACTILE SENSING

27. variation of colpitts –

CLAPP

28. What term is used to describe electronic systems that are made up of extremely small parts or elements?

MICROELECTRONICS

29. The unique advantage of CMOS logic family

POWER DISSIPATION IN NANOWATTS

30. sacrifice factor of a negative feedback(di ko tapos tanong)

WITHOUT FEEDBACK

31. Exhibits a frequency that can be varied with a dc control voltage

VOLTAGE CONTROLLED OSCILLATOR

32. In an RTL, addition of input resistors in series increased the _____ of the circuit.

INPUT IMPEDANCE

33. The primary source of linear distortion of … is the reactance associated with the circuit and ____ element.

ACTIVE

34. damping factor of active filter determines the __________

RESPONSE CHARACTERISTICS

35. saturated IC, inherently have low _______

SWITCHING SPEED

36. Advantage of IC over other discrete components

HIGHER ATTAINABLE SWITCHING SPEED

37. Transconductance

DRAIN CURRENT DIVIDED BY GATE VOLTAGE

38. The unique characteristic of CMOS

POWER DISSIPATION IN NANOWATTS

39. Ethanol, used as an cleaning agent in IC’s, has a boiling point of __

78.3 DEGREE CELCIUS

40. Cleansing agent in IC’s

ACETONE

41. A transistor in which the semiconductor wafer is etched down in steps so the base and emitter regions appear as physical plateaus above the collector region.

MESA TRANSISTOR

42. An Oscilloscope which is use to display the data in a longer time.

STORAGE OSCILLISCOPE

43. Recharged is TWICE in full wave than half wave

44. N-channel enhancement type MOSFETs have _____ in the gate.

HIGH POTENTIONAL

45. microcircuit components with discrete components

MICROCIRCUIT MODULE

46. cascading the amplifier results in gain and bandwidth

INCREASE, INCREASE

47. major component of a MOS IC

MOSFET

48. In oscilloscope, adjust the brightness?…

VOLUME OF THE CONTROL GRID

Complete List of Electronics Engineering Coaching Materials