PYQs Based test 7: Signals & Systems

Topics Covered

Sample Questions from this Test

1. Which one of the following is an eigen function of the class of all continuous-time, linear, time invariant systems (u(t) denotes the unit-step function)?
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2. Two discrete-time signals x[n] and h[n] are both non-zero only for n = 0,1,2, and are zero otherwise. It is given that
   
   x[0] = 1, x[1] = 2, x[2] = 1, h[0] = 1
   
   Let y[n] be the linear convolution of x[n] and h[n]. Given that y[1] = 3 and y[2] = 4, the value of the expression (10y[3] + y[4]) is ________.
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3. A discrete-time signal x[n] = δ [n - 3] + 2δ [n - 5] has a z-transform X(z). If Y(z) = X(-z) is the z-transform of another signal y[n], then
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Test Instructions

• The test contains 20 questions and a total of 32 marks.
• You will have 180 minutes to complete the test. The timer cannot be paused once started.
• Negative marking: 0.25 mark(s) deducted per wrong answer.
• Use the question palette to mark questions for review and navigate freely.
• Detailed solutions and analytics are available immediately after submission.
• This is a free practice test. No login required to attempt.