App Dev Worksheet: Final Test

App development lesson 24: App development final test · Set 683 · 40 questions

Developer's tip (Plan, design, build, check): Find the topic: what apps are, designing apps, or logic and building. Read every screen, list or code line carefully, top to bottom. For code, write each value down step by step and check it again.

1. 1.🎨 A beautiful app that confuses everyone has ___. (a) perfect UX (b) no UI at all (c) good UI but poor UX (d) good UX but poor UI
2. 2.Which of these app ideas solves a real problem? (a) an app that just says hi (b) a blank grey screen (c) a button with no action (d) a medicine reminder
3. 3.Which of these is an input? (a) tapping a button (b) checking a password (c) a buzz (vibration) (d) adding up a bill
4. 4.🎯 Which app would help this user most: a pupil juggling five projects? (a) a big-text reader (b) a water reminder (c) a homework planner (d) a pocket-money tracker
5. 5.🔘 Is this good or poor button design: a clear word like Save? (a) poor design (b) good design
6. 6.🎯 Who are the users of an app? (a) only the coders (b) the people who use it (c) only the testers (d) the app icons
7. 7.True or false: a wireframe shows the real fonts. (a) True (b) False
8. 8.True or false: a medicine reminder solves a real problem. (a) False (b) True
9. 9.🔀 In this course’s code, which sign tests “is equal to”? (a) = (b) !== (c) => (d) ===
10. 10.🧰 What number does this code show?
    function triple(n) {
      return n * 3;
    }
    show(triple(26));
11. 11.🔢 In a food-order flow, which comes first: “open the menu” or “pick a dish”? (a) pick a dish (b) open the menu
12. 12.📊 Survey: which problem bugs you most? How many more votes did “no quiet study place” get than “wasting pocket money”?
    no quiet study place: 14 votes
    missing the bus: 17 votes
    wasting pocket money: 4 votes
13. 13.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a wireframe (b) a final design
14. 14.🧩 How many buttons does this app screen have?
    [title] Edit Profile
    [switch] Dark mode
    [text box] Age
    [button] Save
    [slider] Text size
    [text box] City
    [text box] Phone
15. 15.🗒️ The first small, working version of an app is often called an ___. (a) FAQ (b) MVP (c) CPU (d) URL
16. 16.💡 Which is a problem statement? (a) “Add a logo” (b) “Make it fast” (c) “Use blue buttons” (d) “Kids forget homework”
17. 17.💡 How can you check that people really have the problem? (a) pick a colour (b) just guess (c) copy another app (d) ask possible users
18. 18.🔁 What is the LAST line this code shows?
    let names = ["Aman", "Kabir", "Riya"];
    for (let i = 0; i < names.length; i++) {
      show("Hi, " + names[i]);
    } (a) Hi, Riya (b) Hi, Kabir (c) Hi, Aman
19. 19.Which colour pair is easy to read? (a) yellow on white (b) pale pink on white (c) white on dark green (d) red on green
20. 20.True or false: a wireframe uses the final pictures. (a) False (b) True
21. 21.🧩 Which part lets the user give the app information? (a) a logo (b) an input (c) a title (d) an icon
22. 22.🗂️ What kind of app is a torch? (a) a game (b) a tool app (c) a health app (d) a learning app
23. 23.⚙️ In an app, is working out a tip an input, processing or an output? (a) input (b) processing (c) output
24. 24.Which of these requests is fair? (a) torch → contacts (b) map app → location (c) timer → your photos (d) quiz app → microphone
25. 25.🔁 What number does this code show?
    let runs = [1, 2, 10, 6, 1];
    let total = 0;
    for (let i = 0; i < runs.length; i++) {
      total = total + runs[i];
    }
    show(total);
26. 26.Which of these is true of a wireframe? (a) shows the real fonts (b) has the real colours (c) is a quick sketch (d) uses the final pictures
27. 27.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. open “Badges”
    3. open “Help page”
    How many times must you tap Back to reach the main screen of this tab?
28. 28.🗒️ You are planning version 1 of a pocket-money tracker. Which feature is a MUST-HAVE? (a) add money spent (b) pie-chart colours (c) savings stickers (d) export to a file
29. 29.True or false: you pick the features at the test stage. (a) False (b) True
30. 30.🧩 In an app, what is a slider for volume? (a) an input (b) a button (c) data (d) a screen
31. 31.True or false: a beep sound is an output. (a) True (b) False
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 14 px
    Title: 21 px
    Menu: 27 px (a) Hint (b) Title (c) Menu
33. 33.🗒️ You are planning version 1 of a pocket-money tracker. Which feature is a MUST-HAVE? (a) savings stickers (b) export to a file (c) pie-chart colours (d) show the balance
34. 34.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 18 px
    Footer: 23 px
    Caption: 19 px
    Menu: 13 px
35. 35.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. tap the Settings tab
    3. tap the Settings tab
    4. open “Friend list”
    5. open “Match report”
    Which screen are you on now? (a) Map (b) Match report (c) Friend list (d) Feed
36. 36.🗒️ You are planning version 1 of a homework planner. Which feature is a MUST-HAVE? (a) set a due date (b) share tasks to friends (c) earn stickers (d) pick a theme colour
37. 37.🧰 What does this code show?
    function greet(name) {
      return "Well done, " + name + "!";
    }
    show(greet("Arjun")); (a) greet (b) Well done, Arjun! (c) Well done, name! (d) Arjun
38. 38.True or false: a selfie sticker app needs the camera. (a) False (b) True
39. 39.🗂️ What kind of app is a unit converter? (a) a tool app (b) a learning app (c) a health app (d) a game
40. 40.True or false: a free study-room finder solves no real problem. (a) False (b) True

Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students