MCQs

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Overall MCQs for Reference

What is type conversion in artificial intelligence programming?
a. Changing data structure
b. Changing data type
c. Changing algorithm logic
d. Changing variable name
Answer: b. Changing data typewikipedia
Which function converts an integer to a float in Python?
a. str()
b. list()
c. float()
d. dict()
Answer: c. float()programiz
Type conversion where conversion happens automatically by the compiler is called:
a. Explicit
b. Implicit
c. Manual
d. Coercion
Answer: b. Implicitgeeksforgeeks+1
Which keyword in Visual Basic forces conversion to a string type?
a. CString
b. CStr
c. ToString
d. ConvertTo
Answer: b. CStrlearn.microsoft
In C, which operator is used for explicit type conversion?
a. +=
b. cast()
c. (type)
d. reinterpret
Answer: c. (type)w3schools+1
What is the result of int(’10’) in Python?
a. 10
b. ’10’
c. 1
d. Error
Answer: a. 10geeksforgeeks+1
Which type conversion function cannot losslessly convert a float to int if decimals exist?
a. float()
b. int()
c. str()
d. bool()
Answer: b. int()programiz
Which function in C++ is used to overload typecast operations?
a. operator cast()
b. operator type()
c. cast operator
d. operator type
Answer: d. operator type coursehero
What kind of type conversion occurs during division that upgrades integers to float in C?
a. Manual
b. Automatic promotion
c. Demotion
d. Truncation
Answer: b. Automatic promotionsanfoundry+1
Which operator is used for type conversion in Python?
a. ->
b. :
c. ()
d. Constructor
Answer: c. ()geeksforgeeks+1
Which of these is a type conversion function in AWS SiteWise SQL?
a. TO_STRING
b. TO_TYPE
c. CONVERT
d. MAKESTR
Answer: a. TO_STRINGaws.amazon
What type of error occurs when type conversion is not possible?
a. Syntax error
b. Conversion error
c. Runtime error
d. Logic error
Answer: c. Runtime errorcmu+1
Which of the following is NOT a valid type conversion in Python?
a. int(‘abc’)
b. float(12)
c. str(10.5)
d. int(‘100’)
Answer: a. int(‘abc’)programiz
What is the type of result for float(‘5.67’) in Python?
a. Integer
b. String
c. Float
d. Boolean
Answer: c. Floatgeeksforgeeks+1
Which Visual Basic function converts any expression to an object type?
a. CType
b. CObj
c. CastObj
d. ToObject
Answer: b. CObjlearn.microsoft
What kind of conversion is performed if the type of a value changes without an explicit operator?
a. Forced
b. Coercion
c. Explicit
d. Checked
Answer: b. Coercionwikipedia+1
In C, what can happen if converting a larger type to a smaller type?
a. Data overflow
b. Data loss
c. Type promotion
d. Memory leak
Answer: b. Data lossgeeksforgeeks+1
Which of these Python functions does not change type?
a. int()
b. float()
c. bool()
d. print()
Answer: d. print()geeksforgeeks+1
Which of these is an implicit conversion?
a. Assigning integer to float variable
b. Using float() on integer
c. str(int)
d. Passing string to int()
Answer: a. Assigning integer to float variablew3schools+1
Which keyword is used in Visual Basic to convert a value explicitly?
a. As
b. Convert
c. CType
d. ToType
Answer: c. CTypelearn.microsoft
Assigning a float to an integer variable in C using (int) keyword is an example of:
a. Implicit conversion
b. Explicit conversion
c. Unsafe conversion
d. Logical conversion
Answer: b. Explicit conversiongeeksforgeeks+1
What will int(3.99) return in Python?
a. 3
b. 3.99
c. 4
d. Error
Answer: a. 3programiz
Which Python function converts a sequence or iterable to a list?
a. list()
b. seq()
c. tuple()
d. iter()
Answer: a. list()geeksforgeeks
In C/C++, which of these conversions is safe from data loss?
a. double to int
b. float to int
c. int to double
d. char to int
Answer: c. int to doublew3schools+1
Which keyword is used for checked type conversion in C#?
a. checked
b. safe
c. convert
d. explicit
Answer: a. checkedwikipedia
What is the data type of str(5) in Python?
a. int
b. str
c. float
d. bool
Answer: b. strprogramiz+1
Which Python function returns the Boolean equivalent of a value?
a. bool()
b. logical()
c. boolean()
d. Bool()
Answer: a. bool()geeksforgeeks+1
Which type conversion function converts a number to a string in Visual Basic?
a. CNum
b. CStr
c. CVowel
d. CString
Answer: b. CStrlearn.microsoft
What is the effect of type conversion in untyped languages?
a. No effect
b. Run time coercion
c. Syntax errors
d. Increased speed
Answer: b. Run time coercionwikipedia
What does float(‘abc’) return in Python?
a. 0.0
b. Error
c. 1.0
d. None
Answer: b. Errorprogramiz
When converting int to float, what happens to the value 2?
a. Becomes 2.0
b. Remains 2
c. Becomes ‘2’
d. Causes error
Answer: a. Becomes 2.0geeksforgeeks+1
Which process is not a conversion function?
a. toString()
b. int()
c. float()
d. addition()
Answer: d. addition()programiz
Which C++ function prototype is used to overload cast operation for int?
a. operator int()
b. cast int()
c. op_cast()
d. to_int()
Answer: a. operator int()coursehero
The process of converting ‘1’ to an integer in Python can be done by:
a. float(‘1’)
b. int(‘1’)
c. str(‘1’)
d. bool(‘1’)
Answer: b. int(‘1’)geeksforgeeks+1
In JavaScript, what is the function to convert a string “123” to a number?
a. Number(“123”)
b. Int(“123”)
c. float(“123”)
d. Parse(“123”)
Answer: a. Number(“123”)wikipedia
Which is NOT considered a type conversion?
a. Parsing
b. Casting
c. Concatenation
d. Boxing
Answer: c. Concatenationwikipedia
In C/C++, what does conversion of int to char do to value 65?
a. Error
b. ‘A’
c. 65.0
d. None
Answer: b. ‘A’geeksforgeeks
Which is true for explicit type conversion?
a. Happens automatically
b. Needs explicit command
c. Compiler choice
d. Always safe
Answer: b. Needs explicit commandw3schools+1
Which function can convert float to integer in Python?
a. int()
b. float()
c. str()
d. list()
Answer: a. int()programiz+1
Which function generates ASCII character from numeric code in IBM AI conversion functions?
a. Char
b. NumToStr
c. ASCII
d. ToChar
Answer: a. Charibm
Round or truncate function, rounding -1.5 in IBM’s function returns:
a. -1
b. -2
c. 0
d. 1
Answer: b. -2ibm
Which is NOT a valid type for type conversion functions?
a. Boolean
b. Integer
c. String
d. Imaginary
Answer: d. Imaginarygeeksforgeeks
In type conversion, if coercion fails, the system typically:
a. Ignores the operation
b. Returns random value
c. Raises an error
d. Converts to bool
Answer: c. Raises an errorcmu
What happens if you apply int() to ‘3.14’ in Python?
a. 3
b. 4
c. Error
d. 3.14
Answer: c. Errorcodechef
What statement best defines coercion in programming?
a. Manual conversion
b. Data structure manipulation
c. Automatic implicit conversion
d. Coding convention
Answer: c. Automatic implicit conversiongeeksforgeeks+1
What does str(7.89) return in Python?
a. 7
b. ‘7.89’
c. 7.89
d. ‘7’
Answer: b. ‘7.89’programiz+1
What is true about mutable data types concerning type conversion in Python?
a. Their content can be changed
b. They are read-only
c. Type conversion is not allowed
d. They never hold data
Answer: a. Their content can be changedtestbook
Which Visual Basic function is used to convert to Decimal?
a. CDec
b. CStr
c. CInt
d. CDbl
Answer: a. CDeclearn.microsoft
Which Python function converts a value to a tuple?
a. tuple()
b. list()
c. set()
d. dict()
Answer: a. tuple()geeksforgeeks
What does bool(0) return in Python?
a. True
b. False
c. 0
d. ‘False’
Answer: b. Falseprogramiz+1

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