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LMRC JE EC 2018: Mini Mock quiz 2

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Question 1

The analog signal given below is sampled by 600samples per second for m(t) = 3 sin 500 pt + 2 sin 700pt then folding frequency is:

Question 2

The coefficient of coupling between two coils is 0.45. The first coil has an inductance of 75 mH and the second coil has an inductance of 105 mH. What is the mutual inductance between the coils?

Question 3

The Lissajous pattern observed on screen of CRO is a straight line inclined at 45 ° to x axis. If X–plate input is2 sin ωt, the Y–plate input is

Question 4

The light emitted diodes consist of:

Question 5

When the temperature of a doped semiconductor is increased, its conductivity

Question 6

The directive gain of an antenna:

Question 7

In the given figure reflection coefficient at load is:

Question 8

Which of the following relation is true for two digital signals A and B?

Question 9

A 4-bit R/2R digital-to-analog (DAC) converter has a reference of 5 volts. What is the analog output for the input code 1010:

Question 10

A PD controller is used to compensate a system. In comparison to the uncompensated system, the compensated system has:

Question 11

Which of the following is an inherent property of an optical signal and cannot be eliminated even in principle?

Question 12

When the initial slope of input sine wave is greaterthan the slew rate of an OPAMP, the output:

Question 13

In the sentence, identify the segment which contains the grammatical error. If the sentence has no error, then select 'No error'.

Water was dripping of the trees, and the grass was wet.

Question 14

In the sentence, identify the segment which contains the grammatical error.

Pravin sat on the sofa, with his legs tucked down him.

Question 15

In the following question, select the word which cannot be formed using the letters of the given word.

RECLINES

Question 16

Arrange the given words in the sequence in which they occur in the dictionary.
1) Formulas
2) Foozlers
3) Freak
4) Fortunes
5) Force

Question 17

Pebbles and stones are removed from sand by the method of _________

Question 18

The side mirrors of vehicles are of which type of mirrors?

Question 19

If the mass of an object is 60 kgs, what will be its weight on the moon? (N=Newton)

Question 20

How is the term “hypotonic and hypertonic” different to each other?

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ESE & GATE EC General

Aug 17ESE & GATE EC