Electronics and Communication Engineering - Matching Questions
Exercise : Matching Questions - Section 2
- Matching Questions - Section 1
- Matching Questions - Section 2
- Matching Questions - Section 3
- Matching Questions - Section 4
26.
Match the following:
| List I | List II | ||
|---|---|---|---|
| A. | PMMC | 1. | Square law type scale |
| B. | Moving iron | 2. | Very good response |
| C. | Thermo-couple | 3. | Linear scale |
| D. | Electrostatic | 4. | Voltmeter |
27.
Match the following:
| List I (Properties) | List II (Relations) | ||
|---|---|---|---|
| A. | Linear but NOT time-invariant | 1. | y(t) = t2x(t) |
| B. | Time-invariant but NOT linear | 2. | y(t) = t |x(t)| |
| C. | Linear and time invariant | 3. | y(t) = |x(t)| |
| 4. | y(t) = x(t - 5) |
28.
Match the following:
| List I (Microwave device) | List II (Application) | ||
|---|---|---|---|
| A. | Reflex Klystron | 1. | Wideband amplification |
| B. | TWT | 2. | Very low power amplification |
| C. | Cavity Klystron | 3. | Low power FM generation |
| D. | Maser | 4. | Frequency multiplication |
29.
Match the following:
| List I | List II | ||
|---|---|---|---|
| A. | Darlington amplifier | 1. | A circuit using pnp and npn transistors |
| B. | CB amplifier | 2. | A CS amplifier driving a CG amplifier |
| C. | Cascade amplifier | 3. | A circuit with over-all voltage gain close to 1 and very large input impedance |
| D. | Complementary symmetry amplifier | 4. | A circuit with low input impedance |
30.
Match the following:
| List I (BJT amplifier) | List II (Characteristics) | ||
|---|---|---|---|
| A. | CE | 1. | good voltage gain, good current gain |
| B. | CC | 2. | voltage gain less than 1, high current gain |
| C. | CB | 3. | current gain less than 1, voltage gain high |
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