OA reviewer PROG.

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

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

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

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

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

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

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

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

6. 6. Which parameter controls text color?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

15. 15. What is OpenPyXL used for?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

32. 35. Which method merges cells?

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

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

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

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

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

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

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

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

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

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

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

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

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

39. 42. Which command imports the OpenPyXL module?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

47. 53. Which function closes a workbook?

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

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

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

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

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

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

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

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