OA reviewer PROG.

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

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

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

A) None of These
B) Sets the window size
C) Sets the font size
D) Sets padding
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) Entry get()
C) Label text()
D) None of These
E) Button command <

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

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

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

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

6. 6. Which parameter controls text color?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

15. 15. What is OpenPyXL used for?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

32. 35. Which method merges cells?

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

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

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

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

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

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

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

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

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

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

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

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

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

39. 42. Which command imports the OpenPyXL module?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

47. 53. Which function closes a workbook?

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

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

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

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

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

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

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

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