OA reviewer PROG.

1. 1.
How do you access the active worksheet?

A) wb.active <
B) wb.current
C) None of These
D) wb.main
E) wb.sheet

2. 2. What does the geometry("300x200") method do?

A) Sets the font size
B) Sets the window size
C) Sets the widget size <
D) None of These
E) Sets padding

3. 3. Which function is often used to trigger saving Excel data in a Tkinter app?

A) Entry get()
B) Button command <
C) Menu bind()
D) Label text()
E) None of These

4. 4. How do you create a new sheet?

A) wb.insert("NewSheet")
B) wb.create_sheet("NewSheet") <
C) None of These
D) wb.new_sheet("NewSheet")
E) wb.add("NewSheet")

5. 5. Which widget is best to show Excel data in Tkinter?

A) Treeview() <
B) Text()
C) None of These
D) Listbox()
E) Label()

6. 6. Which parameter controls text color?

A) front
B) text_color
C) fg <
D) color
E) None of These

7. 7. What method saves the workbook to a file?

A) save("file.xlsx") <
B) None of These
C) write("file.xlsx")
D) close("file.xlsx")
E) export("file.xlsx")

8. 8. How do you iterate over all rows?

A) for row in ws.allrows():
B) for row in ws.loop_rows():
C) for row in ws.iter_rows(): <
D) None of These
E) for row in ws.rows():

9. 9. Which object represents a single sheet in OpenPyXL?

A) Workbook
B) Cell
C) Worksheet <
D) None of These
E) Row

10. 10. What function creates the main application window?

A) Root()
B) Window()
C) Main()
D) None of These
E) Tk() <

11. 11. What does root.mainloop() do?

A) Keeps the window open and listens for events <
B) Runs only once
C) Closes the window
D) Loads external files
E) None of These

12. 12. What function is used to open an existing Excel workbook?

A) load_workbook() <
B) open_excel()
C) excel_load()
D) None of These
E) read_file()

13. 13. How do you read data from a cell?

A) None of These
B) ws.get("A1")
C) ws.fetch("A1")
D) ws["A1"].value <
E) ws.read("A1")

14. 14. Which attribute gives the maximum number of rows used?

A) ws.length
B) None of These
C) ws.max row <
D) ws.rows
E) ws.rowcount

15. 15. What is OpenPyXL used for?

A) Connecting to databases
B) Web scraping
C) None of These
D) Creating PDFs
E) Working with Excel files in Python <

16. 16. How do you make a column heading bold in OpenPyXL?

A) Use Font(bold=True) <
B) None of These
C) Use Style(bold=True)
D) Use Header(bold=True)
E) Use Text(bold=True)

17. 17. Which OpenPyXL function reads all cells in a row?

A) rows()
B) iter_rows() <
C) None of These
D) get_row()
E) loop_rows()

18. 18. Which attribute gives the maximum number of columns used?

A) ws.cols
B) None of These
C) ws.colcount
D) ws.max_column <
E) ws.width

19. 19. What do you call the top-level window in Tkinter?

A) Shell()
B) Tk() <
C) None of These
D) Main()
E) Frame()

20. 21. What file type does OpenPyXL NOT support?

A) .CSV
B) None of These
C) .xltx
D) .xlsm
E) .xls <

21. 22. Which widget allows single-line text input?

A) Entry() <
B) Button()
C) Label()
D) None of These
E) Text()

22. 23. What method is used to place widgets using absolute positioning?

A) grid()
B) None of These
C) place() <
D) pack()
E) align()

23. 25. What function is used to clear all contents of a Text widget?

A) remove()
B) delete("1.0", END) <
C) clear()
D) reset()
E) None of These

24. 27. What function opens a file dialog to select a file?

A) selectfile()
B) None of These
C) browse()
D) filedialog.askopenfilename() <
E) askfile()

25. 28. Which widget is used to display images?

A) Label() with Photolmage <
B) Button()
C) Text()
D) Canvas()
E) None of These

26. 29. How do you write data to a cell?

A) ws.cell("A1").write("Hello")
B) ws["A1"] = "Hello" <
C) ws.put("A1", "Hello")
D) ws.set("A1", "Hello")
E) None of These

27. 30. How do you change the window title?

A) root.name("My App")
B) root.title("My App") <
C) None of These
D) root.caption("My App")
E) root.text("My App")

28. 31. Which Tkinter widget can be used to make a scrollable text box?

A) Canvas()
B) Label()
C) Text() with Scrollbar() <
D) Entry()
E) None of These

29. 32. What is the file extension for Excel workbooks used in OpenPyXL?

A) .CSV
B) .xlsx <
C) None of These
D) .xls
E) .txt

30. 33. Which method arranges widgets in rows and columns?

A) place()
B) layout()
C) None of These
D) grid() <
E) pack()

31. 34. What parameter in Button() defines the action when clicked?

A) None of These
B) event
C) onClick
D) function
E) command <

32. 35. Which method merges cells?

A) ws.join("A1:B1")
B) ws.merge("A1:B1")
C) ws.combine("A1:B1")
D) ws.merge_cells("A1:B1") <
E) None of These

33. 36. Which method creates a new Excel workbook?

A) Workbook() <
B) None of These
C) Excel()
D) CreateBook()
E) NewExcel()

34. 37. How do you insert a new row at the top?

A) ws.new_row(1)
B) ws.top_row()
C) ws.insert_rows(1) <
D) None of These
E) ws.add_row(1)

35. 38. What event triggers when a Tkinter button is clicked?

A) None of These
B) command <
C) event()
D) onPress()
E) click()

36. 39. To automatically update Excel when a button is pressed, which command is used?

A) Label text=function_name
B) None of These
C) Menu run-function_name
D) Button command=function_name <
E) Entry onChange=function_name

37. 40. What library must be imported for Treeview?

A) import tree
B) None of These
C) import view
D) from tkinter import ttk <
E) from tkinter import tree

38. 41. How do you get all sheet names?

A) None of These
B) wb.names
C) wb.sheetnames <
D) wb.list()
E) wb.sheets()

39. 42. Which command imports the OpenPyXL module?

A) import pyexcel
B) import openpyxi <
C) from openxi import *
D) None of These
E) from excel import *

40. 43. Which Tkinter widget is ideal for entering Excel filenames?

A) None of These
B) Frame()
C) Label()
D) Entry() <
E) Text()

41. 44. What parameter in Label() sets the displayed text?

A) label
B) None of These
C) caption
D) text <
E) value

42. 46. How do you show a success message after saving a file?

A) print("Saved")
B) None of These
C) alert()
D) messagebox.showinfo() <
E) label.set()

43. 48. What widget is used to display text or labels?

A) Canvas()
B) None of These
C) Entry()
D) Text()
E) Label() <

44. 49. How do you get a specific sheet by name?

A) wb.get("Sheet1")
B) wb.sheet("Sheet1")
C) wb["Sheet1"] <
D) wb.active("Sheet1")
E) None of These

45. 50. Which module provides styling tools in OpenPyXL?

A) None of These
B) openpyxl.styles <
C) openpyxl.format
D) openpyxl.color
E) openpyxl.design

46. 52. Which widget allows users to select from a list of options?

A) Choice()
B) None of These
C) Menu()
D) Combo()
E) Listbox() <

47. 53. Which function closes a workbook?

A) None of These
B) wb.stop()
C) wb.finish()
D) wb.end()
E) wb.close() <

48. 54. How can you disable an Entry widget after saving data?

A) entry.off()
B) entry.hide()
C) None of These
D) entry.freeze()
E) entry.config(state="disabled") <

49. 55. How do you reopen a workbook after saving in OpenPyXL?

A) load_workbook("file.xlsx") <
B) get_book("file.xlsx")
C) read_workbook("file.xlsx")
D) wb.open("file.xlsx")
E) None of These

50. 21. What file type does OpenPyXL NOT support?

A) .xlsm
B) .xltx
C) .CSV
D) None of These
E) .xls <

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