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- Question 1 of 15
##### 1. Question

An analog voltmeter uses external multiplier settings. With a multiplier setting of 20 kohm it reads 440 V and with a multiplier setting of 80 kohm it reads 352 V. For a multiplier setting of 40 kohm the voltmeter reads

CorrectIncorrect - Question 2 of 15
##### 2. Question

The open loop transfer function of a unity negative feedback control system is given by

G(s) = 150/[s(s+9)(s+25)]. The gain margin of the system is

CorrectIncorrect - Question 3 of 15
##### 3. Question

The transfer function of a compensator is given as

Gc(s) = (s+a)/(s+b). Gc(s) is lead compensator if

CorrectIncorrect - Question 4 of 15
##### 4. Question

Given x(t) =3sin(1000*pi*t) and y(t) = 5cos(1000*pi*t + pi/4).The x y plot will be (take pi as constant 3.14)

CorrectIncorrect - Question 5 of 15
##### 5. Question

Given that x is a random variable in the range[0,∞]with a probability density function (e to the power -x/2)/K the value of the constant K is

CorrectIncorrect - Question 6 of 15
##### 6. Question

A vector is defined as

f = yˆi + xˆj + zkˆ

where ˆi, ˆj and kˆ are unit vectors in Cartesian (x,y,z) coordinate system.The surface integral f.ds over the closed surface S of a cube with vertices having the following coordinates: (0,0,0), (1,0,0), (1,1,0), (0,1,0), (0,0,1), (1,0,1), (1,1,1), (0,1,1) isCorrectIncorrect - Question 7 of 15
##### 7. Question

The average real power in watts delivered to a load impedance ZL= (4 − j2)Ω by an ideal current source i(t) = 4sin(ωt+ 20°)A is

CorrectIncorrect - Question 8 of 15
##### 8. Question

Time domain expressions for the voltage v1(t) and v2(t) are given as v1(t) = Vmsin(10t− 130°) and v2(t) =Vmcos(10t+ 10°).Which one of the following statements is TRUE?

CorrectIncorrect - Question 9 of 15
##### 9. Question

A pHelectrode obeys Nernst equation and is being operated at 25°C. The change in the open circuit voltage in millivolts across the electrode for a pH change from 6 to 8 is

CorrectIncorrect - Question 10 of 15
##### 10. Question

The pressure and velocity at the throat of a Venturi tube, measuring the flow of a liquid, are related to the upstream pressure and velocity, respectively, as follows:

CorrectIncorrect - Question 11 of 15
##### 11. Question

Semiconductor strain gages typically have much higher gage factors than those of metallic strain gages, primarily due to :

CorrectIncorrect - Question 12 of 15
##### 12. Question

For a rotameter, which one of the following statements is TRUE?

CorrectIncorrect - Question 13 of 15
##### 13. Question

The system function of an LTI system is given by

H(z) = (3z-1)/(4z-1)

The above system can have stable inverse if the region of convergence of H(z) is defined as

CorrectIncorrect - Question 14 of 15
##### 14. Question

The impulse response of an LTI system is given as :

h[n] = w / pi for n = 0

h[n] = sin wn/ pin for n not equal to 0It represents an ideal (note pi is the constant 3.14)

CorrectIncorrect - Question 15 of 15
##### 15. Question

A discrete-time signal x[n] is obtained by sampling an analog signal at 10 kHz. The signal x[n] is filtered by a system with impulse response h[n] = 0.5{a[n] +a[n− 1]}. The 3dB cutoff frequency of the filter is:

CorrectIncorrect