[ 100% Correct ] OpenModelica Test | Spoken Tutorial Quiz Answers

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OpenModelica Test | Spoken Tutorial Quiz Answers

Q1. MISO(Multiple Input Single Output) available in the path:

  • (A) Modelica.Blocks.Interaction
  • (B) Modelica.Blocks.Types
  • (C) Modelica.Blocks.Interfaces
  • (D) Modelica.Blocks.logic
Answer:-  (C) Modelica.Blocks.Interfaces

Q2. der() is the Modelica function for:

  • (A) Double derivative
  • (B) Normal derivative
  • (C) Time derivative
  • (D) Partial derivative
Answer:-  (C) Time derivative

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Q3. Which of the following is an incorrect field of “coordinateSystem” record?

  • (A) initialScale
  • (B) lineColor
  • (C) grid
  • (D) extent
Answer:-  (B) lineColor

Q4. Connectors are used in?

  • (A) All of them
  • (B) Communications
  • (C) Coupling between components and outside world
  • (D) Connections
Answer:-  (A) All of them

Q5. Which of the following is an incorrect way of comment in OMEdit?

  • (A) Real X; // Conversion of the reactant
  • (B) Real X; /* Conversion of the reactant*/
  • (C) Real X; /Conversion of the reactant;
  • (D) Real X  “Conversion of the reactant”;
Answer:-  (D) Real X  “Conversion of the reactant”;

Q6. To simulate a Modelica class, press __________ keys

  • (A) Ctrl +O
  • (B) Ctrl +B
  • (C) Ctrl +S
  • (D) Ctrl +C
Answer:-  (B) Ctrl +B

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Q7. At the top of the modeling area, how many numbers of icons available?

  • (A) 6
  • (B) 3
  • (C) 5
  • (D) 4

Ans:- (D) 4

Q8. reinit(m,n) assigns the value of m to n when the event occurs

  • (A) True
  • (B) False
Answer:-  (B) False

Q9. By default, the model/class saved with__________ extension in OMEdit?

  • (A) .mat
  • (B) .mo
  • (C) .csv
  • (D) .om
Answer:-  (B) .mo

Q10. Which keys are used to switch from Modeling Perspective to Plotting Perspective?

  • (A) Ctrl +F1
  • (B) Ctrl +F3
  • (C) Ctrl +F4
  • (D) Ctrl +F2
Answer:-  (B) Ctrl +F3

OpenModelica Test – Spoken Tutorial Quiz Answers – All the Answers Provided on this page are Correct if you think there is any mistake, Please comment, we will update it soon.

Q11. Choose the correct output for below code

model test
Real x;
Real y;
initial equation
x = 1;
y = 1;
algorithm
x := y+8;
y := x+2;
end test;
  • (A) Initialization error
  • (B) x = 9, y = 11;
  • (C) Singular matrix; unsolvable system
  • (D) x = 9, y = 3;
Answer:-  (A) Initialization error

Q12. 

model test
parameter Integer p =10;
Real j, k(start = 2);
equation
if time > 10 then
j = p/(2);
k = p;
else
j = p;
end if;
end test;

The model above fails because

  • (A) Model runs successfully
  • (B) If statement doesn’t support equations
  • (C) Number of equations are different in if branch and else branch
  • (D) Variable time is not declared
Answer:-  (C) Number of equations are different in if branch and else branch

Q13. What is the proper syntax of for loop ?

  • (A) for i=1:3 loop
    a:=a+1;
    end for;
  • (B) for i=(1:3)
    { a=a+1;
    }
  • (C) for
    i=1:3
    a:=a+1;
  • (D) for
    {
    i=1 and 3
    a:=a+1;
    }
Answer:-  
(A) for i=1:3 loop
a:=a+1;
end for;

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Q14.

model test
parameter Real p[5] ={10,20,14,23,54};
Real j[5];
equation
j[:] = p[:] .+ 2;
end test;

Number of equations in the above model are

  • (A) 10
  • (B) 1
  • (C) 5
  • (D) 2
Answer:-  (C) 5

Q15. What is the syntax for vector declaration?

  • (A)Real [2]a;
  • (B) Real = a[2];
  • (C) Real = [2]a;
  • (D) Real a[2];
Answer:-

Q16. Select the correct declaration of a parameter p of Integer type :

  • (A) parameter Integer p = 10;
  • (B) integer parameter p = 10.0;
  • (C) Integer parameter p = 10;
  • (D) Parameter Integer p = 10.0;
Answer:-

Q17. To simulate a model in OpenModelica, which statement is true:

  • (A)number of equations > number of variables
  • (B) number of equations <number of variables
  • (C) All of them
  • (D) number of equations = number of variables
Answer:-

OpenModelica Test – Spoken Tutorial Quiz Answers – All the Answers Provided on this page are Correct if you think there is any mistake, Please comment, we will update it soon.

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