Complete the sentence: Dare .................. mistakes.

**A. ** commit

**B. ** to commit

**C. ** committed

**D. ** committing

**Answer : ****Option B**

**Explaination / Solution: **

No Explaination.

No Explaination.

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A car travels 8 km in the first quarter of an hour, 6 km in the second quarter
and 16 km in the third quarter. The average speed of the car in km per hour
over the entire journey is

**A. ** 30

**B. ** 36

**C. ** 40

**D. ** 24

**Answer : ****Option C**

**Explaination / Solution: **

No Explaination.

No Explaination.

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For 8085 microprocessor, the following program is executed.

MVI A, 05H;

MVI B, 05H;

PTR: ADD B;

DCR B;

JNZ PTR;

ADI 03H;

HLT;

At the end of program, accumulator contains

The program is being executed as follows

MVI A, 0.5H; A = 05H

MVI B, 0.5H; B = 05H

At the next instruction, a loop is being introduced in which for the instruction “DCR B” if the result is zero then it exits from loop so, the loop is executed five times as follows :

i.e., A = 05 + 05 + 04 + 03 + 02 + 01 = 144

At this stage, the 8085 microprocessor exits from the loop and reads the next instruction. i.e., the accumulator is being added to 03 H. Hence, we obtain A = A + 03 H = 14 + 03 = 17 H

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In the circuit shown below the op-amps are ideal. Then, V_{out} in Volts is

**A. ** 4

**B. ** 6

**C. ** 8

**D. ** 10

**Answer : ****Option C**

**Explaination / Solution: **

No Explaination.

No Explaination.

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The small-signal resistance in kW offered by the n-channel
MOSFET M shown in the figure below, at a bias point of V_{B }= 2V is (device
data for M: device transconductance parameter , threshold voltage VTN = 1V, and neglect body effect and channel length
modulation effects)

**A. ** 12.5

**B. ** 25

**C. ** 50

**D. ** 100

**Answer : ****Option A**

**Explaination / Solution: **

No Explaination.

No Explaination.

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The return loss of a device is found to be 20 dB. The voltage standing wave ratio (VSWR) and magnitude of reflection coefficient are respectively

**A. ** 1.22 and 0.1

**B. ** 0.81 and 0.1

**C. ** – 1.22 and 0.1

**D. ** 2.44 and 0.2

**Answer : ****Option A**

**Explaination / Solution: **

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The open-loop transfer function of a dc motor is given a When connected in feedback as shown below, the approximate value of K_{a} that
will reduce the time constant of the closed loop system by one hundred times as
compared to that of the open-loop system is

**A. ** 1

**B. ** 5

**C. ** 10

**D. ** 100

**Answer : ****Option C**

**Explaination / Solution: **

No Explaination.

No Explaination.

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The divergence of the vector field

**A. ** 0

**B. ** 1/3

**C. ** 1

**D. ** 3

**Answer : ****Option D**

**Explaination / Solution: **

Given, the vector field

Given, the vector field

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The following arrangement consists of an ideal transformer and an attenuator
which attenuates by a factor of 0.8. An ac voltage V_{WXI} = 100 V is applied
across WX to get an open circuit voltage VYZ1 across YZ. Next, an ac voltage V_{YZ2} = 100 V is applied across YZ to get an open circuit voltage VWX2 across
WX. Then, V_{YZI}/V_{WX1}, V_{WX2}/V_{YZ2 }are respectively.

**A. ** 125/100 and 80/100

**B. ** 100/100 and 80/100

**C. ** 100/100 and 100/100

**D. ** 80/100 and 80/100

**Answer : ****Option C**

**Explaination / Solution: **

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Let , and h(t) is a filter matched to g(t). if g(t) is applied as input to h(t) then the Fourier transform of the output is

**A. **

**B. **

**C. **

**D. **

**Answer : ****Option D**

**Explaination / Solution: **

The matched filter is characterized by a frequency response that is given as

The matched filter is characterized by a frequency response that is given as

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