Multiple Choice Questions in Electronics Engineering Part 11

Multiple Choice Questions in Electronics Engineering Part 11

1.      What is the term given to arranging data records in a predefined sequence or order?

A.    Sorting

B.     Arranging

C.     Sequencing

D.    Ordering

2.      What computer language was developed for mathematical work?

A.    MATIMATICA

B.     BASIC

C.     MATHTYPE

D.    FORTRAN

3.      What IF frequencies are normally used in radar receivers?

A.    30 or 60 MHz

B.     60 or 80 MHz

C.     30 or 40 MHz

D.    60 or 70 MHz

4.      Mechanical rotation frequency is measured using a device called ___.

A.    Frequency counter

B.     Accelerometer

C.     Frequency meter

D.    Tachometer

5.      Electrical-output frequencies of ac generators can be measured by ___.

A.    Vibrating-reed devices or tuned circuits

B.     Accelerometer

C.     Frequency meter

D.    Tachometer

6.      Audio frequencies can be measured by a process known as ___.

A.    Frequency counting

B.     Beating

C.    Zero beating

D.    Mixing

7.      What is another term for zero beating?

A.    Frequency counting

B.     Beating

C.    Heterodyning

D.    Mixing

8.      What wavemeter is used for measuring frequencies in the microwave range?

A.    Frequency counter

B.     Cavity wavemeter

C.     Bolometer

D.    Absorption wavemeter

9.      What is the process of matching an unknown signal with a locally generated signal of the same frequency obtained from a calibrated high-precision oscillator?

A.    Frequency beating

B.     Beating

C.    Zero beating

D.    Mixing

10.  What device that sweeps over a band of frequencies to determine what frequencies are being produced by a specific circuit under test and the amplitude of each frequency component?

A.    Frequency counter

B.     Cavity wavemeter

C.     Bolometer

D.    Spectrum analyzer

11.  What is commonly used for the analysis of waveforms generated by electronic equipment?

A.    Frequency counter

B.     Cavity wavemeter

C.    Cathode-ray oscilloscope(CRO or O-SCOPE)

D.    Bolometer

12.  What is device used to measure frequencies above the audio range?

A.    Frequency counter

B.     Cavity wavemeter

C.     Bolometer

D.    Electronic frequency counter

13.  What are calibrated resonant circuits used to measure frequency?

A.    Frequency counter

B.     Cavity wavemeter

C.    Wavemeters

D.    Spectrum analyzer

14.  What is the difference in frequency between the oscillator frequency and the unknown frequency?

A.    Beat frequency

B.     Image frequency

C.     IF

D.    Signal frequency

15.  The rotation frequency of recording devices and teletypewriter motors can be measured by the use of a ___.

A.    Tachometer

B.     Frequency counter

C.     Oscilloscope

D.    Stroboscope

16.  What is an instrument that allows you to view rotating or reciprocating objects intermittently and produces the optical effect of a slowing down or stopping motion?

A.    Tachometer

B.     Frequency counter

C.     Oscilloscope

D.    Stroboscope

17.  What is an electronic flash device in which the flash duration is very short, a few millionths of a second and can measure very rapid motion?

A.    Tachometer

B.     Frequency counter

C.    Strobotac

D.    Stroboscope

18.  What is a combination of watch and revolution counter?

A.    Chronometric tachometer

B.     Frequency counter

C.     Strobotac

D.    Stroboscope

19.  What type of bolometer is characterized by an increase in resistance as the dissipated power rises?

A.    Chronometric tachometer

B.     Barretter

C.     Strobotac

D.    Stroboscope

20.  What type of bolometer is characterized by decrease in resistance as the power increases?

A.    Chronometric tachometer

B.     Barretter

C.     Strobotac

D.    Thermistor