# Electronics and Communication Engineering - Matching Questions

### Exercise :: Matching Questions - Section 1

31.

Match the following:

List I (Comm.services) List II (Bandwidth)
B.Telephone2.4 kHz
C.wide-band FM3.200 kHz
D.TV4.7 MHz

 A. A-1, B-2, C-3, D-4 B. A-3, B-4, C-1, D-2 C. A-1, B-4, C-3, D-2 D. A-3, B-2, C-1, D-4

Explanation:

No answer description available for this question. Let us discuss.

32.

Match the following:

List I (Logic family) List II (Characteristic of logic family)
A.TTL1.Maximum power Consumption
B.ECL2.Highest Packing Density
C.NMOS3.Least Power Consumption
D.CMOS4.Saturated Logic

 A. A-1, B-4, C-2, D-3 B. A-1, B-4, C-3, D-2 C. A-4, B-1, C-2, D-3 D. A-4, B-1, C-3, D-2

Explanation:

No answer description available for this question. Let us discuss.

33.

Match the following:

List I List II
A.Penetration frequency1.Lowest frequency at which charged particles spiral in fixed magnetic field
B.Optimum working frequency2.Same as critical and frequency
C.Gyro frequency3.Highest frequency of radio waves that can be used
D.Maximum usable frequency4.The most effective frequency for ionosphere propagation of radio waves

 A. A-2, B-4, C-1, D-3 B. A-4, B-1, C-3, D-2 C. A-1, B-3, C-2, D-4

Explanation:

No answer description available for this question. Let us discuss.

34.

Match the following:

List I List II
A.Synchro1.Amplifier
B.Amplidyne2.Actuator
C.Servo3.Compensator
D.RC network4.Transducer

 A. A-1, B-2, C-3, D-4 B. A-4, B-3, C-2, D-1 C. A-3, B-2, C-4, D-1 D. A-4, B-1, C-2, D-3

Explanation:

No answer description available for this question. Let us discuss.

35.

Match the following:

List I List II
A.Silicon1.is trivalent
B.Arsenic2.rarely used as semiconductor
C.Indium3.is pentavalent
D.Germanium4.intrinsic semiconductor

 A. A-1, B-2, C-3, D-4 B. A-4, B-3, C-2, D-1 C. A-4, B-3, C-1, D-2 D. A-2, B-1, C-3, D-4