App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 245 · 40 questions

Developer's tip (Think like the user): First decide which topic the question is about. Use that lesson’s rule: 48 px buttons, 16 px text, the screen stack, the flow order. For code, count positions from 0.

1. 1.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Badges”
   2. tap the Quiz tab
   3. tap the Lessons tab
   4. open “Help page”
   Which screen are you on now? (a) Quiz (b) Badges (c) Help page (d) Lessons
2. 2.🔢 In a food-order flow, what comes right after “add it to the cart”? (a) check the cart (b) pick a dish (c) track the order (d) open the menu
3. 3.Which of these is about UX (the experience)? (a) the button colours (b) the theme colours (c) whether users get lost (d) the icon shapes
4. 4.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
   Design A: Home → Confirm → Pay
   Design B: Home → Shop → Cart → Offers
5. 5.True or false: grey text on grey is poor button design. (a) False (b) True
6. 6.🎨 Who should you test the UX with? (a) only yourself (b) nobody (c) real users (d) the app icon
7. 7.🔢 In a quiz-app flow, which comes FIRST? (a) see if it is right (b) pick an answer (c) read a question (d) tap “Start quiz”
8. 8.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ tab bar ]
   [ Save button ]
   [ filter buttons ]
   [ menu icon ]
   [ title text ] (a) menu icon (b) Save button (c) tab bar (d) title text
9. 9.Which of these is about UI (the look)? (a) the theme colours (b) how users feel after (c) how easy sign-up is (d) whether users get lost
10. 10.Which of these fits saving in the cloud? (a) notes to read offline (b) a shared to-do list (c) a draft you are typing (d) the sound on/off setting
11. 11.🎨 Is this about UI or UX: the font size? (a) UI (b) UX
12. 12.💾 What is a variable? (a) a phone setting (b) a picture (c) a named box for a value (d) a type of screen
13. 13.Which colour pair is easy to read? (a) dark blue on black (b) red on green (c) dark blue on white (d) yellow on white
14. 14.💾 Where should the app save a class leaderboard: on the phone or in the cloud? (a) in the cloud (b) on the phone
15. 15.Which of these helps everyone use the app? (a) big touch targets (b) sudden loud sounds (c) fast-flashing lights (d) icons with no labels
16. 16.Which of these is true of a wireframe? (a) looks like the real app (b) uses the final pictures (c) shows the real fonts (d) shows where things go
17. 17.🔍 Which is the odd one out? (a) whether users get lost (b) how easy sign-up is (c) the icon shapes (d) how fast a task is done
18. 18.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) makes it harder (b) helps everyone
19. 19.💾 What number does this code show?
    let points = 7;
    points = points - 1;
    points = points + 4;
    show(points);
20. 20.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 64 px tall
    Save button: 60 px tall
    Start button: 28 px tall (a) Save (b) Start (c) Cancel
21. 21.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pens → Address → Menu → Size → Item → Confirm
    Design B: Home → Address → Offers → Pens → Pay
22. 22.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. open “Map”
    3. open “Score card”
    Which screen are you on now? (a) Lessons (b) Map (c) Score card (d) Quiz
23. 23.💾 What does this code show? (Positions start at 0.)
    let songs = ["Sunrise", "Kites", "Monsoon"];
    show(songs[1]); (a) Kites (b) Monsoon (c) Sunrise
24. 24.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a final design (b) a wireframe
25. 25.💾 What number does this code show?
    let notes = ["Sports", "Music", "Art", "Hindi"];
    notes.push("Science");
    show(notes.length);
26. 26.Which of these is about UX (the experience)? (a) the icon shapes (b) the screen layout (c) how easy sign-up is (d) the button colours
27. 27.🔍 Which is the odd one out? (a) the icon shapes (b) how users feel after (c) the screen layout (d) the theme colours
28. 28.🧭 Which part of navigation sits at the bottom? (a) the back button (b) a tab bar (c) a menu button
29. 29.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Size → Item → Shop → Address → Results
    Design B: Home → Offers → Item → Cart
30. 30.Which of these is true of a wireframe? (a) looks like the real app (b) has the real colours (c) shows the real fonts (d) uses plain grey boxes
31. 31.True or false: a shared to-do list fits saving in the cloud. (a) False (b) True
32. 32.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) on the phone (b) in the cloud
33. 33.🧭 Which part of navigation shows 3 to 5 icons? (a) the back button (b) a tab bar (c) a menu button
34. 34.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
35. 35.♿ Does this help everyone, or make the app harder to use: big touch targets? (a) helps everyone (b) makes it harder
36. 36.🖼️ In this wireframe (top to bottom), what is right below the title text?
    [ menu icon ]
    [ big picture ]
    [ top bar ]
    [ title text ]
    [ search box ] (a) big picture (b) search box (c) top bar (d) menu icon
37. 37.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. open “Map”
    3. open “Edit photo”
    4. tap the Settings tab
    How many times must you tap Back to reach the main screen of this tab?
38. 38.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) captions on videos (d) icons with no labels
39. 39.✏️ A box with a cross in a wireframe usually means ___. (a) a picture goes here (b) an error (c) a closed app (d) delete this
40. 40.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. tap the Profile tab
    3. open “Badges”
    4. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?

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