Mock

1. mark review Which one of the following is the transfer function Y(s)/X(s) for the block given?

G1G2/1-H2G1G2+H1G2

G1 G2/1+H2G1G2 - H1G2

H1G1G2/1+H2G1G2 - H1G2

H1G1G2/1-H2G1G2+H1G2

Question 1 of 15

2. mark review In the radiation pattern of the three element array of Isotropic radiators which are equally spaced at distance λ/4, it is required to place a null at an angle of 33.56° of the end fire direction, calculate the progressive phase shifts to be applied to the elements?

π rad

π/4 rad

π/2 rad

3π rad

Question 2 of 15

3. mark review The type of modulation for the arrangement shown in the given figure is?

OOK

FSK

ASK

PSK

Question 3 of 15

4. mark review This question has a word followed by four choices. From the choices, identify the one which is opposite in meaning (antonym) to the main word and mark its number as your answer.

IGNOMINIOUS

Dishonest

Ominous

Crooked

Laudable

Question 4 of 15

5. mark review Laplace transform of V (t) shown in wave form is?

2/s - 1/s2[1 - e -2s]

-2/s+ 1/s2[1 - e -2s]

2/s - 1/s2[1 - e -2s]

-2/s - 1/s2[1 - e -2s]

Question 5 of 15

6. mark review Two numbers 698 and 450 when divided by a certain divisor leave remainders of 9 and 8 respectively. Find the largest such divisor.

Question 6 of 15

7. mark review If the differential voltage gain and the common voltage gain of a differential amplifier are 50 dB and 5 dB respectively, then its common mode rejection ratio is?

45 dB

10 dB

55 dB

25 dB

Question 7 of 15

8. mark review For a Poisson variate X,E(X²) =20, then its mean is?

Question 8 of 15

9. mark review A 4-bit D/A converter gives an output voltage 4.5 V for an input code of 1001. The output voltage for an input code 0.10 is?

4.5 V

3.0 V

1.5 V

2.0 V

Question 9 of 15

10. mark review A diode circuit (a) whose V-I characteristics are shown in Fig (b), the load current is?

1 A

0.1 A

0 A

1.5 A

Question 10 of 15

11. mark review A p - type silicon specimen is exhibiting hall effect, given B_z= 0.05 wb/m², E_y =750 v/cm, d=0.009 m, l=0.01 m, then the induced hall voltage in y-direction is?

8.25 V

6.75 V

5.25 V

4.57 V

Question 11 of 15

12. mark review A TE₁₀ rectangular wave guide is to be designed for operation over 25 - 35 GHz and the band center is 1.5times the cut off frequency, what should be the dimensions of the broadside?

15 mm

9 mm

10 mm

7.5 mm

Question 12 of 15

13. mark review For the circuit shown in the following figure, Transistors M₁ and M₂ are identical NMOS transistors. Assume the M₂ is in saturation and the output is unloaded

The current I_x is related to I_bias as

Ix =I bias - Is

Ix =I bias[V d - V out/R d

Ix =I bias+Is

Ix =I bias

Question 13 of 15

Uncategorized

14. mark review For which of the following functions Rollie's theorem not applicable?

ƒ(x)=√1-x² on [-7,2]

ƒ(x)= x² -(a+b)x+ab on [a,b]

ƒ(x)=x² - x - 6 on [-2,3]

ƒ(x)=cos x on [0,2π]

Question 14 of 15

15. mark review For a logic family V_OH is minimum output high level voltage

V_ol is the maximum output low level voltage

V_IH is minimum acceptable input high level value

V_IL is the maximum acceptable input low level voltage

The correct relationship among these voltages is?

V IH > V OH > V IH > V OL

V OH > V IH > V IL > V OL

V IH > V OH > V OL > V IL

V OH > V IH > V OL >V IL

Question 15 of 15

Test Name	GAT ECE Mock Test
Subject	Mock Test
Test Type	MCQs
Total Question	60
Total Marks	120
Total Time	40 Minutes
Test Help For	GAT ECE Test. General Knowledge. Entry Test. IIT Guwahati Test. M.Tech Programme. Electronics Engineering. Admissions Entrance Exams. IITs Test. NITs Test. IIITs Test.

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