App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 31 · 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.🔍 Which is the odd one out? (a) the theme colours (b) how many taps it takes (c) the button colours (d) the icon shapes
2. 2.🔍 Which is the odd one out? (a) the screen layout (b) the font size (c) how fast a task is done (d) the icon shapes
3. 3.🔢 In a food-order flow, which comes first: “track the order” or “check the cart”? (a) track the order (b) check the cart
4. 4.🔀 A screen with no way forward or back is called a ___. (a) tab bar (b) dead end (c) home screen (d) shortcut
5. 5.🧭 Which part of navigation goes to the last screen? (a) a menu button (b) the back button (c) a tab bar
6. 6.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a wireframe (b) a final design
7. 7.🖼️ In this wireframe (top to bottom), what is right above the menu icon?
   [ top bar ]
   [ Save button ]
   [ Add button ]
   [ menu icon ]
   [ filter buttons ]
   [ list of items ] (a) Save button (b) list of items (c) Add button (d) filter buttons
8. 8.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
9. 9.💾 What number does this code show?
   let stars = 5;
   stars = stars - 2;
   stars = stars + 5;
   show(stars);
10. 10.Which of these is true of a menu button? (a) undoes one move (b) switches main sections (c) goes to the last screen (d) hides extra links
11. 11.♿ What does a screen reader do? (a) plays music (b) takes photos (c) reads the screen aloud (d) makes text tiny
12. 12.💾 Data saved only on the phone is lost when ___. (a) you send a message (b) the phone is lost (c) the screen turns off (d) the app is closed
13. 13.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Menu → Size → Pay → Search → Confirm
    Design B: Home → Pens → Confirm
14. 14.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Pens → Menu
    Design B: Home → Results → Cart → Confirm
15. 15.🧭 Which part of navigation undoes one move? (a) the back button (b) a tab bar (c) a menu button
16. 16.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a wireframe (b) a final design
17. 17.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap the Home tab
    3. open “Video”
    How many times must you tap Back to reach the main screen of this tab?
18. 18.Which of these fits saving on the phone? (a) a class leaderboard (b) a draft you are typing (c) a shared to-do list (d) photos on two devices
19. 19.🔢 In a food-order flow, which comes LAST? (a) check the cart (b) pick a dish (c) pay for the order (d) track the order
20. 20.💾 What does this code show? (Positions start at 0.)
    let notes = ["Maths", "Science", "Hindi", "Art"];
    show(notes[0]); (a) Hindi (b) Science (c) Maths (d) Art
21. 21.🔢 In a quiz-app flow, which comes FIRST? (a) see the final score (b) pick an answer (c) see if it is right (d) tap “Start quiz”
22. 22.🔀 In a good flow, each screen should lead to ___. (a) a dead end (b) a random page (c) a clear next step (d) the same screen
23. 23.🔢 In a sign-up flow, what comes right after “make a password”? (a) tap “Sign up” (b) open the app (c) enter the code sent (d) type name and email
24. 24.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ Save button ]
    [ big picture ]
    [ menu icon ]
    [ tab bar ]
    [ filter buttons ]
    [ list of items ] (a) tab bar (b) list of items (c) Save button (d) filter buttons
25. 25.Which of these is about UI (the look)? (a) how easy sign-up is (b) how many taps it takes (c) how fast a task is done (d) the theme colours
26. 26.🧭 Tapping a tab usually takes you to ___. (a) the phone settings (b) that tab’s main screen (c) a random page (d) the last app used
27. 27.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. tap the Feed tab
    3. open “Video”
    4. tap Back
    5. open “Edit photo”
    How many times must you tap Back to reach the main screen of this tab?
28. 28.✏️ Why draw a wireframe before coding? (a) changes are quick (b) it adds colours (c) it saves data (d) it runs the app
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 19 px
    Title: 17 px
    Body text: 22 px
    Footer: 10 px (a) Caption (b) Body text (c) Title (d) Footer
30. 30.💾 Which can hold many values in order? (a) a switch (b) a single number (c) a button (d) a list
31. 31.Which of these fits saving in the cloud? (a) a draft you are typing (b) notes to read offline (c) the sound on/off setting (d) a class leaderboard
32. 32.🎨 Is this about UI or UX: the theme colours? (a) UX (b) UI
33. 33.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a wireframe (b) a final design
34. 34.🔢 In a food-order flow, which comes first: “check the cart” or “track the order”? (a) check the cart (b) track the order
35. 35.💾 Where should the app save the sound on/off setting: on the phone or in the cloud? (a) in the cloud (b) on the phone
36. 36.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 21 px
    Footer: 18 px
    Caption: 27 px
    Body text: 12 px
    Label: 26 px (a) Hint (b) Caption (c) Footer (d) Body text
37. 37.🔘 Our rule: buttons are at least 48 px tall. The Help button is 20 px tall. How many px taller must it be?
38. 38.Which of these is true of a wireframe? (a) shows the real fonts (b) uses the final pictures (c) shows where things go (d) looks like the real app
39. 39.🔢 In a quiz-app flow, what comes right after “read a question”? (a) pick an answer (b) see the final score (c) see if it is right (d) tap “Start quiz”
40. 40.Which of these helps everyone use the app? (a) captions on videos (b) colour as the only clue (c) tiny tap areas (d) sudden loud sounds

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