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Question

Match the following:

List I List II

A. RC coupled amplifier 1. Very low drift

B. Tuned amplifier 2. Flat frequency response from zero frequency onwards

C. Chopper stabilized amplifier 3. Flat frequency response with upper and lower cut off frequency

D. DC amplifier 4. Peak in gain frequency response

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

Correct Answer

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

More questions

2. In p-n-p transistor the current I_E has two components viz. I_EP due to injection of holes from p-region to n-region and I_E due to injection of electrons from n-region to p-region. Then
Options
A. I_Ep and I_En are almost equal
B. I_Ep >> I_En
C. I_En >> I_Ep
D. either (a) or (c)

3. A Shockley diode can be used
Options
A. in place of SCR
B. as a trigger switch for SCR
C. in place of UJT
D. both in place of SCR and as a trigger switch for SCR

5. Consider the following statements
1. Usable bandwidth of ridge wave guide is more than that of rectangular waveguide.
2. For a given value of TM₁₀ cutoff frequency the cross section of ridge wave guide is lesser that that of rect angular waveguide.
3. Ridge wave guide has higher conductor losser than a rectangular waveguide.
4. Ridge guide has higher conductor losser than a rectangular waveguide.
Which of the above statements are correct?
Options
A. 1 and 2 only
B. 1, 2 and 3 only
C. 2 and 3 only
D. All

6. Resistivity of copper is lower than that of nickel. When a small percentage of copper is added to nickel, the resistivity
Options
A. increases
B. decreases
C. may increase or decrease
D. remains the same

7. The current rating of a cable depends on
Options
A. length of cable
B. diameter of cable
C. both length and diameter of cable
D. none of the above

8. A voltmeter using thermocouples measures
Options
A. rms value
B. peak value
C. average value
D. peak to peak value

9. In the given figure the input is x(t) = A sin ?t. The steady state output y(t) =
Options
A. A sin (?t + ?) where ? = tan^-1 |G(j?)|
B. |G(j?)| A sin [?t + ?G(j?)]
C. |G(j?)| A sin [2?t + ?G(j?)]
D. A G(j?) sin [?t + ?G(j?)]

10. Which are the popular IF frequencies for microwave and radar receivers operating on frequencies in the range 1 to 10 GHz
Options
A. 30, 60 and 70 kHz
B. 3, 6 and 7 kHz
C. 30, 60 and 70 MHz
D. 3, 6 and 7 GHz

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