GATE Mock Test Electronics Engineering (ECE)- 9 - Electronics and Communication Engineering (ECE) MCQ

Pick the odd one out.

The bar graph shows the number of employees working under the six different Departments (A, B, C, D, E, F) of a certain company. Study the diagram and answer the following questions.

If departments F and D are merged to create a new department G, then which department will have the least number of employees?

Fill in the missing number in the series:

7, 13, 21, ____, 43, 57

A sum of Rs.400 amounts to Rs.480 in 4 years. What will it amount to if the rate of interest is increased by 2 % for the same time?

How many times do the hands of a clock overlap in 24 hours?

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If the sentence is free from error, select 'No error'.

The gold foil used liberal (1)/ in Thanjavur paintings serves (2)/ many objectives that makes the painting more attractive. (3)/ No error

In the following question, a group of four figures following certain sequence is given as problem figures. Problem figures are followed by another group of four figures known as answer figures marked (1), (2), (3), (4). Find out the figure from the answer figures which when placed next to the problem figures will continue the sequence of the problem figures.

During transmitting over a binary communication channel, bit error occurs independently with a probability of p. The probability of at most 2 bits in error in a block of ‘n’ transmitted bits would be

There are 60 students in a class. The students are divided into three groups A, B and C of 15, 20 and 25 students, respectively. The groups A and C are combined to form group D. What is the average weight of the students in group D?

Transfer function of an LTI system is given as G(S)= (s-1)/(s+1)

Find the gain of the system at a frequency of 1 rad/s.

The probability that a man will live 10 more years is 1/4 and the probability that his wife will live 10 more years is 1/3. The probability that neither of them will be alive in 10 years is

Consider the Schmitt trigger circuit shown below the Hysteresis width in Volts is……?

Voting is the privilege for which wars have been fought, protests have been organized, and editorials have been written. "No taxation without representation," was a battle cry of the American Revolution. Women struggled for suffrage, as did many minorities. Eighteen year olds clamored for the right to vote, saying that if they were old enough to fight in the war, then they should be allowed to vote. Yet Americans have a deplorable voting history, and many will tell you that they have never voted.

Which of the following words is the best synonym for the word 'privilege' as used in the passage?

A non-ideal diode is used in a clamper circuit. The forward and reverse resistances of the diode are 200 ohms and 250 kilo ohms, respectively. The circuit designer has designed the circuit using a 10 kilo ohm resistor. The value of resistor to be connected in parallel to correct the circuit would be approximately

Two trains start at the same time from two stations A and B towards each other.

They arrive at B and A respectively in 5 hours and 20 hours after they passed each other.

If the speed of the train that started from A is 56 kmph, then what is the speed of the second train (in kmph)?

If a characteristics equation has roots S = -3 ± J4 then the values of natural frequency and damping ratio will be respectively.

A man starts at a certain point, walks one km east, then two km north, one km east, one km north, one km east and finally one km north to arrive at the destination. What is the shortest distance (in km) from the starting point to the destination?

Calculate value of R_L so that maximum power is transmitted through R_L Also calculate maximum power generated

If u = log , find the value of x .(Answer up to the nearest integer)

Find the transfer function for the given block diagram?

If the closed-loop transfer function of a control system is given as T(s) = then it is

For the n-channel enhancement MOSFET shown in the given figure, Threshold voltage V_tn=2V,The drain current ID of the MOSFET is 4mA when drain resistance R_D is 1kΩ, If value of R_D is increase to 4kΩ, then drain current ID will become

The root locus of the system G(s) H(s) = has the break-away point located at

As it comes in the form of 0/0 so applying LH rule QUESTION IS DISPLACED

Putting t=1/4W

P (t) = = 0.5

A conducting circular loop of radius 20 cm lies in the z = 0 plane in a field B = 20 cos 377t a_z mWb/m². The induced voltage in the loop is

The transfer function of a network can be written as

(1+s)/(1+0.5s) . The maximum phase angle occurs at a frequency of _______ rad/sec.

If v = 2xy, then the analytic function f (z) = u + iv is