Which operator is used for exponentiation in Visual Basic?
a) ^
b) **
c) //
d) ^^
Explanation: The "^" operator is used for exponentiation in Visual Basic, raising a number to the power of another number.
What is the role of the "Handles" keyword in a Visual Basic event handler?
a) It defines the parameters of the event handler.
b) It identifies the control that triggers the event.
c) It specifies the return type of the event handler.
d) It declares the event within the class.
Explanation: The "Handles" keyword in a Visual Basic event handler is used to identify the control that triggers the event, linking the event handler to that specific control's event.
How do you declare a constant variable in Visual Basic?
a) Const myVar As Integer = 10
b) Final myVar = 10
c) Dim myVar As Constant = 10
d) let myVar = 10
Explanation: To declare a constant variable in Visual Basic, you use the "Const" keyword followed by the variable name, data type (optional if specified), and the constant value.
What is the purpose of the "Len" function in Visual Basic?
a) It calculates the length of a string.
b) It generates a random number.
c) It converts a value to an integer data type.
d) It determines the size of an array.
Explanation: The "Len" function in Visual Basic calculates the length of a string by returning an integer representing the number of characters in the string.
Which property is used to get or set the position of the horizontal scroll bar in a TextBox control in Visual Basic?
a) ScrollBarHorizontal
b) HScrollPosition
c) HorizontalScrollBar
d) HorizontalScroll
Explanation: The "HorizontalScroll" property in Visual Basic is used to get or set the position of the horizontal scroll bar in a TextBox control, enabling navigation through the contents when they exceed the visible area.
In
Visual Basic, what is the purpose of the "Mid" function?
a) It returns a substring from a given string.
b) It checks if a value exists in an array.
c) It performs arithmetic operations on strings.
d) It converts a string to lowercase.
Explanation: The "Mid" function in Visual Basic is used to extract a substring from a given string, specifying the starting position and length of the substring.
