Electronics and Communication Gate 2015 Set-1 Questions with Answer

Ques 40 GATE 2015 SET-1

In the system shown in Figure (a), m(t) is a low-pass signal with bandwidth W Hz. The frequency response of the band-pass filter H(f) is shown in Figure (b). If it is desired that the output signal z(t) = 10m(t), the maximum value of W (in Hz) should be strictly less than

Ques 41 GATE 2015 SET-1

The transmitted signal in a GSM system is of 200 kHz bandwidth and 8 users share a common bandwidth using TDMA. If at a given time 12 users are talking in a cell, the minimum bandwidth of the signal received by the base station of the cell will be (in kHz) __________.

Ques 42 GATE 2015 SET-1

Choose the most appropriate word from the options given below to complete the following sentence.
The principal presented the chief guest with a ________ as token of appreciation.

Ques 43 GATE 2015 SET-1

Choose the appropriate word/phrase, out of the four options given below, to complete the following sentence.
Frogs ________.

Ques 44 GATE 2015 SET-1

Choose the word most similar in meaning to the given word:
Educe

Ques 45 GATE 2015 SET-1

Operators □, ∧ and → are defined by: a □ b = (a-b)/(a+b); a ∧ b = (a+b)/(a-b); a→b = ab.
Find the value of (66 □ 6) → (66 ∧ 6).

Ques 46 GATE 2015 SET-1

If log₇(7^x) = -3, then the value of x is

Ques 47 GATE 2015 SET-1

The following question presents a sentence, part of which is underlined. Beneath the sentence you find four ways of phrasing the underlined part. Following the requirements of standard written English, select the answer that produces the most effective sentence.
Tuberculosis, together with its effects, ranks one of the leading causes of death in India.

Ques 48 GATE 2015 SET-1

Read the following paragraph and choose the correct statement.
Climate change has reduced human security and threatened the sustainability of ecosystems. To keep both the climate and the economy on a sustainable path, we need to act by all the ways to cut carbon on a war footing.

Ques 49 GATE 2015 SET-1

Fill in the missing value in the given pattern.

Ques 50 GATE 2015 SET-1

A cube of side 3 units is formed using a set of smaller cubes of side 1 unit. Find the proportion of the number of faces of the smaller cubes visible to those which are NOT visible.

Ques 51 GATE 2015 SET-1

Humpty Dumpty sits on a wall every day while having lunch. The wall sometimes breaks. A person sitting on the wall falls if the wall breaks.
Which one of the statements below is logically valid and can be inferred from the above sentences?