OA reviewer PROG.

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

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

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

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

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

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

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

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

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

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

6. 6. Which parameter controls text color?

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

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

A) None of These
B) export("file.xlsx")
C) close("file.xlsx")
D) save("file.xlsx") <
E) write("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) for row in ws.rows():
D) None of These
E) for row in ws.loop_rows():

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

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

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

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

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

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

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

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

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

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

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

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

15. 15. What is OpenPyXL used for?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

32. 35. Which method merges cells?

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

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

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

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

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

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

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

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

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

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

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

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

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

39. 42. Which command imports the OpenPyXL module?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

47. 53. Which function closes a workbook?

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

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

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

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

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

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

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

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