App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 941 · 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.🔘 Our rule: buttons are at least 48 px tall. The Help button is 24 px tall. How many px taller must it be?
2. 2.💾 What number does this code show?
   let notes = ["Art", "Sports", "Music", "Hindi"];
   notes.push("Maths");
   show(notes.length);
3. 3.🔢 In a quiz-app flow, which comes FIRST? (a) tap “Start quiz” (b) read a question (c) pick an answer (d) see the final score
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 23 px
   Footer: 23 px
   Body text: 21 px
   Title: 19 px
   Hint: 20 px
5. 5.True or false: “text that can grow” makes the app harder to use. (a) True (b) False
6. 6.Which of these is true of a wireframe? (a) uses the final pictures (b) shows the real fonts (c) has the real colours (d) has no real colours
7. 7.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ list of items ]
   [ top bar ]
   [ Add button ]
   [ title text ]
   [ menu icon ] (a) menu icon (b) list of items (c) title text (d) top bar
8. 8.True or false: “text that can grow” helps everyone use the app. (a) True (b) False
9. 9.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
   Design A: Home → Confirm → Address
   Design B: Home → Shop → Menu → Pens
10. 10.🎨 Is this about UI or UX: the font size? (a) UI (b) UX
11. 11.🎨 Is this about UI or UX: the icon shapes? (a) UX (b) UI
12. 12.💾 What does this code show? (Positions start at 0.)
    let notes = ["Music", "Sports", "Science", "Art"];
    show(notes[0]); (a) Science (b) Music (c) Sports (d) Art
13. 13.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Shop → Size
    Design B: Home → Size → Address → Menu → Offers (a) Design B (b) Design A
14. 14.🔀 What is a user flow? (a) the path through screens (b) a charging cable (c) a type of font (d) a colour theme
15. 15.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Cancel button: 52 px tall
    Send button: 64 px tall
    Back button: 60 px tall
    Save button: 32 px tall
16. 16.True or false: how many taps it takes is about UI (the look). (a) False (b) True
17. 17.Which of these helps everyone use the app? (a) tiny tap areas (b) captions on videos (c) sudden loud sounds (d) icons with no labels
18. 18.🖼️ In this wireframe (top to bottom), what is right below the top bar?
    [ filter buttons ]
    [ top bar ]
    [ title text ]
    [ tab bar ]
    [ Add button ]
    [ Save button ] (a) Save button (b) Add button (c) title text (d) filter buttons
19. 19.🔍 Which is the odd one out? (a) the theme colours (b) the font size (c) the button colours (d) how easy sign-up is
20. 20.💾 Where should the app save a draft you are typing: on the phone or in the cloud? (a) on the phone (b) in the cloud
21. 21.True or false: “tiny tap areas” helps everyone use the app. (a) False (b) True
22. 22.🔢 In a sign-up flow, which comes FIRST? (a) enter the code sent (b) see the home screen (c) tap “Sign up” (d) open the app
23. 23.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
24. 24.Which of these is true of the back button? (a) sits at the bottom (b) switches main sections (c) hides extra links (d) undoes one move
25. 25.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
26. 26.Which of these helps everyone use the app? (a) icons with no labels (b) strong colour contrast (c) tiny tap areas (d) fast-flashing lights
27. 27.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 17 px
    Title: 13 px
    Label: 26 px (a) Label (b) Title (c) Menu
28. 28.♿ A screen has 7 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
29. 29.True or false: the font size is about UX (the experience). (a) False (b) True
30. 30.🎨 Who should you test the UX with? (a) nobody (b) the app icon (c) only yourself (d) real users
31. 31.🎨 Is this about UI or UX: how many taps it takes? (a) UI (b) UX
32. 32.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 16 px
    Caption: 25 px
    Label: 10 px (a) Footer (b) Caption (c) Label
33. 33.True or false: “labels on every icon” helps everyone use the app. (a) True (b) False
34. 34.✏️ A box with a cross in a wireframe usually means ___. (a) a picture goes here (b) a closed app (c) an error (d) delete this
35. 35.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. open “Map”
    3. tap Back
    4. tap the Search tab
    5. tap the Search tab
    Which screen are you on now? (a) Home (b) Map (c) Profile (d) Search
36. 36.🖼️ In this wireframe (top to bottom), what is right above the big picture?
    [ tab bar ]
    [ big picture ]
    [ top bar ]
    [ list of items ]
    [ filter buttons ]
    [ title text ] (a) tab bar (b) filter buttons (c) top bar (d) list of items
37. 37.True or false: how many taps it takes is about UX (the experience). (a) True (b) False
38. 38.Which of these is true of a tab bar? (a) shows 3 to 5 icons (b) hides extra links (c) undoes one move (d) goes to the last screen
39. 39.✏️ What is a wireframe? (a) a charging cable (b) a type of password (c) the finished app (d) a simple screen sketch
40. 40.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap Back
    3. open “Map”
    4. tap the Search tab
    How many times must you tap Back to reach the main screen of this tab?

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