MATLAB Practice Test 8

1. What is the output of the following code?

syms x;
timeit(@()sin(x))

Error due to sin(x)

The time required to compute the value of a sin(x)

Syntactical Error

Time required to initialize sin(x) as a vector of symbolic elements

2. What is the no. of bits used for the counter operation by the following block?

Minimum required

System defined

3. What is the function of this block?

Defining both continuous and discrete systems

Defining only continuous systems

Defining only discrete systems

Defining only digital systems

4. What is the output of the following code?

clipboard('copy',poe)

Logical Error

Syntactical Error

Copies poe

Copies ‘poe’

5. Which of the following method increases the performance of operation?

Preallocation

Postallocation

Characterization

It’s not possible to increase performance

6. Which of the following contains the memory for the maximum possible array that can be made in MATLAB?

[p,q]=memory

It’s not returned

Error

7. What is the output of the following code?

matlab.addons.toolbox.installToolbox(Lo.mltbx,True)

Prompts the license file and installs the toolbox

Ignores license file and installs the toolbox directly

Error

Logical error

8. This block can be used in what kind of systems?

Any

Logical

Discrete

Continuous

9. What is the output of the following code?

system(date)

It doesn’t show the date but MATLAB returns 1

It shows the date but MATLAB returns 0

It doesn’t show the date and MATLAB returns 0

It shows the date but MATLAB returns 1

10. Which of the following command unloads a library from the system?

unldlibrary[]

unloadlibrary()

unloadlibrary{}

unldlibrary()