1
GATE ECE 2017 Set 2
MCQ (Single Correct Answer)
+1
-0.3
An LTI system with unit sample response
$$h\left( n \right) = 5\delta \left[ n \right] - 7\delta \left[ {n - 1} \right] + 7\delta \left[ {n - 3} \right] - 5\delta \left[ {n - 4} \right]$$ is a
A
low pass filter
B
high pass filter
C
band pass filter
D
band stop filter
2
GATE ECE 2017 Set 2
MCQ (Single Correct Answer)
+2
-0.6
The signal x(t) = $$\sin \,(14000\,\pi t)$$, where t is in seconds, is sampled at a rate of 9000 samples per second. The sampled signal is the input to an ideal lowpass filter with frequency response H(f) as following: $$H(f) = \left\{ {\matrix{ {1,} & {\left| f \right| \le \,12\,kHz} \cr {0,} & {\left| f \right| > \,12\,kHz} \cr } } \right.$$

What is the number of sinusoids in the output and their frequency inkHz?

A
Number = 1, frequency = 7
B
Number =3, frequencies =2, 7, 11
C
Number =2, frequencies =2, 7
D
Number =2, frequencies =7, 11
3
GATE ECE 2017 Set 2
MCQ (Single Correct Answer)
+1
-0.3
A rule states that in order to drink beer one must be over 18 years old. In a bar, there are 4 people. P is 16 years old, Q is 25 years old, R is drinking milkshake and S is drinking beer. What must be checked to ensure that the rule is being followed?
A
Only P's drink
B
Only P's drink and S's age
C
Only S's age
D
Only P's drink, Q's drink and S's age
4
GATE ECE 2017 Set 2
MCQ (Single Correct Answer)
+1
-0.3
500 students are taking one or more courses out of Chemistry, Physics, and Mathematics. Registration records indicate course enrolment as follows: Chemistry (329), Physics (186), Mathematics (295), Chemistry and Physics (83), Chemistry and Mathematics (217), and Physics and Mathematics (63). How many students are taking all 3 subjects?
A
37
B
43
C
47
D
53
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
CBSE
Class 12