Difference equation in discrete systems is similar to the _____________ in continuous systems.

The process of converting discrete-time continuous valued signal into discrete-time discrete valued (digital) signal is known as ____________

A

Sampling

B

Quantization

C

Coding

D

None of the mentioned

Read the following sentences and choose the correct option. (i) Variables can only take discrete values while Attributes can take continuous values. (ii) Variables can only take continuous values while Attributes take discrete value. (iii) Attributes and variables are dependent on each other. (iv) Width of an impeller blade is a variable but no. of defective blades in a lot is an attribute.

A

(i) and (iii) are correct

B

(i)and (iii) are incorrect

C

Only (i) is correct

D

(i), (ii), (iii) and (iv)

A class III mathematics teacher gave the following questions to her students: \(\begin{equation} \frac{ \begin{array}[b]{r} 256 \\ + 173 \end{array} }{ } \end{equation}\) \(\begin{equation} \frac{ \begin{array}[b]{r} 28 \\ + 32 \end{array} }{ } \end{equation}\) \(\begin{equation} \frac{ \begin{array}[b]{r} 129 \\ + 76 \end{array} }{ } \end{equation}\) Later she asks the students to solve a worksheet that has similar questions. Which of the following statements is appropriate for the given situation?

A

It is an example of contextual question

B

It is an example of open ended task

C

Teacher should have asked the students to solve ten more such questions as a home task to save the time

D

The tasks is based on drill and practice and should be discouraged at primary level

Another form of Rolle’s theorem for the continuous condition is _____ b) f is continuous on c) f is continuous on d) f is continuous on

A

f is continuous on

B

a,a-h

C

a,a-h

D

a,a-h

Consider the following statements: 1. A continuous random variable can take all values in an interval. 2. A random variable which takes a finite number of values is necessarily discrete. 3. Construction of a frequency distribution is based on data which are discrete. Which of the above statements are correct?

A

1 and 2 only

B

2 and 3 only

C

1 and 3 only

D

1, 2 and 3

Assertion (A): An LTI discrete system represented by the difference equation. y (n+2)-5y(n+1)+6y(n) =x(n) is unstable. Reason (R): A system is unstable if the roots of the characteristic equation lie outside the unit circle.

A

Both A and R are true and R is the correct explanation of A

B

Both A and R are true but R is NOT the correct explanation of A

C

A is true but R is false

D

A is false but R is false

Which of the following landline telemetry systems are available? 1. Voltage telemetry systems 2. Current telemetry systems 3. Position telemetry systems 4. Resistive telemetry systems

A

1, 2 and 3 only

B

1, 2 and 4 only

C

1, 3 and 4 only

D

2, 3 and 4 only

Which of the following statements with regard to Almond's characterisation of political system are correct? (i) All political systems have political structures. (ii) All political systems do not perform the same functions. (iii) All political systems are not multi-functional. (iv) All political systems are mixed systems in the cultural sense. Choose the correct answer from the code given below :

A

Only (i), (ii) and (iii)

B

Only (i) and (iv)

C

Only (ii) and (iv)

D

Only (iii) and (iv)

In the electronic communication system, digital signals a. do not provide a continuous set of values. b. represent values as discrete steps. c. utilize a binary system. d. utilize decimal as well as binary systems. Which of the above statements are true?

A

Only a and b

B

Only b and c

C

a, b and c

D

All of the above

Assertion (A): Z-transform is used to analyze discrete time systems and it is also called pulsed transfer function approach. Reason(R): The sampled signal is assumed to be a train of impulses whose strengths, or areas, are equal to the continuous time signal at the sampling instants.

A

Both A and R are true and R is correct explanation of A

B

Both A and R are true and R is not correct Explanation of A

C

A is True and R is false

D

A is False and R is true

Difference equation in discrete systems is similar to the _____________ in continuous systems.

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