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

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

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

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

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

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

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

6. 6. Which parameter controls text color?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

15. 15. What is OpenPyXL used for?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

32. 35. Which method merges cells?

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

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

A) Excel()
B) NewExcel()
C) CreateBook()
D) Workbook() <
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.insert_rows(1) <
D) ws.add_row(1)
E) None of These

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

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

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

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

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

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

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

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

39. 42. Which command imports the OpenPyXL module?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

47. 53. Which function closes a workbook?

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

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

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

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

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

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

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

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