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The correct answer is (b) Laplacian domain

To EXPLAIN I WOULD say: The s domain is REFERRED to the Laplacian domain. The z-domain has a SEPARATE block. HENCE, only laplacian domain is correct.

Right choice is (a) The maximum value of a SIGNAL

Best explanation: The above block is CONFIGURED to view the final value of a signal after simulation. It HELPS to IDENTIFY the final value but only up to the TIME for which the model is getting simulated.

Correct ANSWER is (a) True

Easiest explanation: We can simulate the characteristics of a circuit in MATLAB. This MEANS we can calculate the total response of a SYSTEM in SIMULINK.

Right CHOICE is (a) Yes

For EXPLANATION I WOULD SAY: This BLOCK is essential for analysis using circuits. Without it, the simulation won’t start in the Simulink model.

Correct option is (d) Any

Best EXPLANATION: The impulse function can be MODELLED by choice and it doesn’t matter how MUCH we want to delay the impulse function nor the FACT that it’s CONTINUOUS or discrete.

Correct answer is (c) Not always

Explanation: The Early VOLTAGE can be specified amongst the PARAMETERS of the NPN B.J.T. It can ALSO be put to INFINITE for the sake of calculations- though it never happens in reality.

Correct choice is (d) Gives an OUTPUT as the function of the input

The best I can explain: The above mathfunction takes an input and ends up giving an output according to the GIVEN input and the user-chosen function. It does not MULTIPLY the input with function so it really isn’t doing anything mentioned in the rest of the options.

Right answer is (B) By converting the signal from the sensor to a Simulink Signal

The explanation: The signal from the current sensor is treated as a physical sensor to ACCOUNT for the noise, temperature CHANGES in the environment of the CIRCUIT. Now, since this is a physical signal- we actually need to convert it to a signal which is compatible with the Simulink environment and this is done by a converter which converts a physical signal to a Simulink signal. Henceforth, we can connect the output of the converter to our scope and watch the output swing.

The CORRECT answer is (b) Measuring impulse response of a SYSTEM

The BEST explanation: We are giving a discrete impulse signal to the system represented by the transfer FUNCTION which is that of a ramp function.

Outpu

Correct choice is (a) Configuration properties

For explanation I would say: In the window, which contains the graph obtained from the scope block- there is the option of Configuration Properties in the VIEW option. We can modify the limits of both axis from that segment. The layout and style OPTIONS don’t CONTAIN the AXES.

Correct answer is (B) 7

The explanation: The logical operations present are AND, NOT, OR, NAND, NOR, XOR and XNOR. Hence, the correct option is 7.

The CORRECT ANSWER is (b) Some

To ELABORATE: We note that the RAMP function does not START from 0 at t=0. This implies that it has some initial conditions.

Correct choice is (C) User defined

To elaborate: This is a block PRESENT in MATLAB and can be used to model a constant SIGNAL. The value of the constant is user defined.

The correct answer is (c) It can be modelled

Easiest explanation: We can SET the charge CONTENT of the battery and thereby MAKE the voltage coming from it as a charge dependent voltage source which is quite nice for real time simulation.

The CORRECT option is (a) 1W

The explanation is: The reference POWER for this block is pre-defined in MATLAB. To convert the VOLTAGE to dB, the reference power is 1W but to convert it to dBm, the reference power is 1mW.

The CORRECT CHOICE is (a) True

The best I can explain: The output of the scope always shows as an analog signal. It is recommended to use other MEANS of REALIZING DIGITAL outputs such as bulbs.

The correct option is (a) Can be implemented

The explanation is: Logic systems and bitwise OPERATOR SECTION under Simulink provides the user with a multitude of operators for digital system. MATLAB also has HDL doe verifier.

The correct choice is (c) CHECKS whether a signal is zero

To EXPLAIN I WOULD say: The given block checks whether the input given to this block is 0 or not. If it’s 0, the block returns an error.

The correct option is (d) Any SIGNAL

To explain I WOULD SAY: This block has essentially been designed in MATLAB to multiplex any kind of signal. It accepts both real and complex signals so it also takes DIGITAL signals.

The correct answer is (C) Gives a 1 if input is positive

The BEST I can explain: The above BLOCK gives a 1 if the input is positive and a -1 if the input is negative.

The correct option is (b) Tangent

To ELABORATE: The cosine waveform can be GENERATED by DELAYING the sinusoidal signal by pi/2. The Square and Sawtooth waveforms are also generated by this block. The signal to REPRESENT tan(x) is not available in this block.

The correct CHOICE is (d) User defined

Explanation: The datasheet of any transistor can be SPECIFIED in the transistor model. HENCE, only OPTION User defined is correct.

Right answer is (a) LEFT upper corner block

Easy explanation: The Fcn block allows a user defined FUNCTION to operate on signals during simulation and directly give a desired mathematical function. The INTERPRETED MATLAB function block is used to CALL the MATLAB commands which are pre-defined in MATLAB. The Function Caller block is used to SPECIFY a stateflow chart which can be used as a separate function block.

The correct option is (a) True

The best I can EXPLAIN: The battery can be modelled with an internal RESISTANCE and an internal capacitance. HENCE, the above STATEMENT is true.

The correct answer is (a) can

The explanation is: Not only by blocks, but ELECTRONIC components are also present in the Simscape toolbox. We can simulate the working of circuits VIA this toolbox. We would NEED a source and the scope to generate and view waveforms of input and output respectively.

Right choice is (a) The discrete IMPULSE is shifted by 8 units in TIME

Best explanation: The transfer function represents a ramp function. Now, the scope shows a graph starts from t=8 units in time and goes to 1 at t=9. Thus the impulse input GIVEN to the graph is ACTUALLY shifted by 8 units in time.

The correct OPTION is (a) TRUE

For explanation: The Simulink allows the user to set up BLOCKS which represent functions and can be used to model a system. Hence, the above STATEMENT is true.

Right option is (b) It evaluates circuit PARAMETERS of every component during SIMULATION

To elaborate: It is connected to all SEPARATE n/w’s present in the model. It will CALCULATE the parameters of every component present in the circuit, during Simulation, and the model won’t be simulated WITHOUT this solver.

The correct option is (d) SENSORS

To elaborate: It is not present in the section mentioned in SEMICONDUCTOR devices, DIODES and special purpose diodes, don’t exist as separate sections. It is really present in the sensors section SINCE it acts LIKE a sensor only.

The correct OPTION is (b) No

Explanation: This block is TREATED as an ideal constant voltage source. It can be USED in place of the voltage source ALREADY present in SIMULINK toolbox.

Right choice is (c) No. of ZEROS greater than no. of poles not allowed

For EXPLANATION I would say: The system having more zeros than poles is extremely unstable and not REALIZABLE. Hence, this is the only possible limitation of the GIVEN block.

Right answer is (a) CONVERTS a SIMULINK signal to a physical Signal

To elaborate: The above SHOWN BLOCK does the work which converts a simulink signal to a physical signal. This is used to convert a signal from a transfer function toolbox, say, to a physical REAL signal which can be used for evaluation in circuits.

The correct choice is (a) GIVES a logic 1 if the input is greater than it’s previous VALUE

The best explanation: The above block gives a 1 if the input is strictly greater than it’s previous value. It RETURNS a 0 if the input is less than or equal to it’s previous value, as defined in SIMULINK TOOLBOX.

The correct ANSWER is (a) The SLOPE of the ramp function is 0

For explanation: SINCE the ramp function is PLOTTED in the y-axis, it is seen that the value of the y axis is 0.

Correct OPTION is (d) Minimum required

To elaborate: This block uses the minimum no. of bits required for a counter operation. It doesn’t initialize bits ACCORDING to the number of bits of the system so it SAVES a bit of MEMORY.

Correct option is (c) SOURCE

To explain: This block ACTS as a source and HENCE it’s placed in the Source section. This is DIFFERENT from GROUND.

The correct answer is (a) The step response of the unit step signal with a step time=0

Easiest EXPLANATION: Since the step FUNCTION is given as an input to the system WHOSE transfer function is s, the above screenshot shows the modelling of a system whose impulse response is a step function while the input is also a step function. The graph suggests that step time is 0.

The correct choice is (b) Add a DC value to the signal

Easiest explanation: The Bias block is USED to add a bias signal to any signal. This essentially means adding a DC value to the input i.e. if the input signal is a SINUSOID, it’ll start from the GIVEN Bias or D.C. value at t=0.