OA reviewer PROG.

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

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

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

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

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

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

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

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

6. 6. Which parameter controls text color?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

15. 15. What is OpenPyXL used for?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

A) root.text("My App")
B) root.name("My App")
C) root.caption("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) Label()
B) Text() with Scrollbar() <
C) Canvas()
D) None of These
E) Entry()

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

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

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

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

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

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

32. 35. Which method merges cells?

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

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

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

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

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

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

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

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

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

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

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

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

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

39. 42. Which command imports the OpenPyXL module?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

47. 53. Which function closes a workbook?

A) wb.close() <
B) wb.stop()
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.off()
C) entry.hide()
D) entry.freeze()
E) entry.config(state="disabled") <

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

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

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

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

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