App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 482 · 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.🖼️ In this wireframe (top to bottom), what is right above the big picture?
   [ search box ]
   [ big picture ]
   [ Add button ]
   [ title text ]
   [ Save button ] (a) title text (b) search box (c) Save button (d) Add button
2. 2.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a wireframe (b) a final design
3. 3.🔍 Which is the odd one out? (a) tiny tap areas (b) big touch targets (c) text that can grow (d) strong colour contrast
4. 4.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ list of items ]
   [ big picture ]
   [ search box ]
   [ Add button ]
   [ Save button ] (a) list of items (b) Save button (c) big picture (d) search box
5. 5.💾 pop() takes off the last item. What does this code show?
   let friends = ["Aman", "Riya", "Meera"];
   friends.pop();
   show(friends[friends.length - 1]); (a) Riya (b) Aman (c) Meera
6. 6.Which of these is about UI (the look)? (a) how fast a task is done (b) how many taps it takes (c) how easy sign-up is (d) the button colours
7. 7.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Help page”
   2. open “Map”
   3. open “Help page”
   Which screen are you on now? (a) Quiz (b) Lessons (c) Help page (d) Map
8. 8.🔢 In a sign-up flow, which comes FIRST? (a) see the home screen (b) enter the code sent (c) tap “Sign up” (d) open the app
9. 9.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a final design (b) a wireframe
10. 10.🌗 Is dark blue on white easy or hard to read on a button? (a) easy to read (b) hard to read
11. 11.Which of these is true of a tab bar? (a) switches main sections (b) opens a list of pages (c) hides extra links (d) goes to the last screen
12. 12.💾 What number does this code show?
    let songs = ["Stars", "Ocean", "Monsoon"];
    songs.push("Rain");
    songs.push("Kites");
    show(songs.length);
13. 13.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
14. 14.True or false: icons with no meaning is good button design. (a) False (b) True
15. 15.🔢 In a quiz-app flow, which comes first: “pick an answer” or “read a question”? (a) read a question (b) pick an answer
16. 16.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Confirm → Offers → Menu → Item → Pens → Pay
    Design B: Home → Confirm → Search → Pay → Size
17. 17.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Back button: 32 px tall
    Help button: 68 px tall
    Cancel button: 72 px tall
    Start button: 72 px tall (a) Start (b) Cancel (c) Help (d) Back
18. 18.🔀 A screen with no way forward or back is called a ___. (a) home screen (b) dead end (c) tab bar (d) shortcut
19. 19.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) icons with no labels (d) text that can grow
20. 20.Which of these helps everyone use the app? (a) captions on videos (b) fast-flashing lights (c) tiny tap areas (d) colour as the only clue
21. 21.True or false: how many taps it takes is about UX (the experience). (a) True (b) False
22. 22.💾 What does this code show? (Positions start at 0.)
    let notes = ["Maths", "Art", "Hindi", "Science"];
    show(notes[2]); (a) Science (b) Hindi (c) Maths (d) Art
23. 23.🌗 Is yellow on white easy or hard to read on a button? (a) easy to read (b) hard to read
24. 24.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Back button: 52 px tall
    Help button: 28 px tall
    Cancel button: 68 px tall (a) Help (b) Cancel (c) Back
25. 25.Which of these is about UX (the experience)? (a) the font size (b) the button colours (c) how many taps it takes (d) the screen layout
26. 26.Which of these is true of a final design? (a) shows where things go (b) looks like the real app (c) uses plain grey boxes (d) is a quick sketch
27. 27.🔀 In a good flow, each screen should lead to ___. (a) a random page (b) a dead end (c) the same screen (d) a clear next step
28. 28.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Help button: 36 px tall
    Cancel button: 56 px tall
    Send button: 68 px tall (a) Cancel (b) Send (c) Help
29. 29.🔢 In a sign-up flow, what comes right after “make a password”? (a) type name and email (b) open the app (c) tap “Sign up” (d) enter the code sent
30. 30.🔢 In a food-order flow, which comes first: “add it to the cart” or “open the menu”? (a) open the menu (b) add it to the cart
31. 31.💾 Where should the app save your last game level: on the phone or in the cloud? (a) in the cloud (b) on the phone
32. 32.🔢 In a food-order flow, which comes first: “open the menu” or “check the cart”? (a) open the menu (b) check the cart
33. 33.🧭 About how many tabs suit a tab bar best? (a) 10 to 12 (b) 20 (c) 1 (d) 3 to 5
34. 34.🎨 UX stands for user ___. (a) extra (b) experience (c) express (d) example
35. 35.🔍 Which is the odd one out? (a) how easy sign-up is (b) the theme colours (c) how users feel after (d) how many taps it takes
36. 36.💾 What number does this code show?
    let points = 9;
    points = points - 8;
    points = points + 5;
    show(points);
37. 37.💾 What number does this code show?
    let stars = 7;
    stars = stars - 3;
    stars = stars + 1;
    show(stars);
38. 38.🎨 Is this about UI or UX: the theme colours? (a) UX (b) UI
39. 39.🖼️ How many parts (boxes) does this wireframe have?
    [ big picture ]
    [ menu icon ]
    [ Add button ]
    [ list of items ]
    [ top bar ]
40. 40.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Start button: 60 px tall
    Send button: 48 px tall
    Help button: 52 px tall
    Next button: 24 px tall (a) Help (b) Send (c) Start (d) Next

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