A true ans b false question 2 1 mark the therac 25

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A. True. = ANS B. False. Question 2 [1 mark] The Therac-25 and Ariane 5 were both produced in Europe. Is this statement true or false? A. True. B. False. = ANS Question 3 [1 mark] In Python, strings of characters can be represented by both values of type str and of type list . Is this statement true or false? A. True. = ANS B. False. Question 4 [1 mark] Strings are mutable in Python. Is this statement true or false? A. True. B. False. = ANS Question 5 [1 mark] Alan Turing wrote the Art of Computer Programming . Is this statement true or false? A. True. B. False. = ANS continued on page 3
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ENG 1D04 SOLUTIONS 3/12 Question 6 [1 mark] After the line of code x = 17 is executed, the variable x can be bound only to values of type int . Is this statement true or false? A. True. B. False. = ANS Question 7 [1 mark] What is the decimal number 500 equal to in binary? A. 11110011. B. 11100111. C. 111110100. = ANS D. 111100011. E. 111011101. Question 8 [1 mark] What is the hexadecimal number A8C equal to in binary? continued on page 4
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ENG 1D04 SOLUTIONS 4/12 Question 9 [1 mark] In which software development phase is pseudo-code useful? Question 10 [1 mark] In the graphics.py module used in the book, the getHeight method of an object of type GraphWin is an example of a(n) Question 11 [1 mark] What numeric type in Python contains an infinite number of values? A. int . B. long . = ANS C. float . D. Complex . E. None of the above. continued on page 5
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ENG 1D04 SOLUTIONS 5/12
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