OA reviewer PROG.

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

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

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

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

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

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

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

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

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

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

6. 6. Which parameter controls text color?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

15. 15. What is OpenPyXL used for?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

32. 35. Which method merges cells?

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

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

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

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

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

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

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

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

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

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

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

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

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

39. 42. Which command imports the OpenPyXL module?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

47. 53. Which function closes a workbook?

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

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

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

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

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

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

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

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