App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 490 · 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.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a wireframe (b) a final design
2. 2.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Badges”
   2. tap the Search tab
   3. open “Match report”
   4. tap Back
   Which screen are you on now? (a) Match report (b) Search (c) Badges (d) Home
3. 3.🔍 Which is the odd one out? (a) whether users get lost (b) how easy sign-up is (c) how fast a task is done (d) the font size
4. 4.✏️ A box with a cross in a wireframe usually means ___. (a) a closed app (b) a picture goes here (c) delete this (d) an error
5. 5.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Badges”
   2. open “Help page”
   3. tap the Quiz tab
   Which screen are you on now? (a) Badges (b) Quiz (c) Lessons (d) Help page
6. 6.♿ A screen has 7 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
7. 7.Which of these fits saving on the phone? (a) a class leaderboard (b) photos on two devices (c) notes to read offline (d) a shared to-do list
8. 8.🔢 In a food-order flow, which comes first: “pick a dish” or “add it to the cart”? (a) add it to the cart (b) pick a dish
9. 9.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. tap the Me tab
   2. tap the Me tab
   3. open “Help page”
   4. tap Back
   5. open “Score card”
   Which screen are you on now? (a) Score card (b) Lessons (c) Help page (d) Quiz
10. 10.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Size → Cart → Pens
    Design B: Home → Offers → Address → Pens → Item
11. 11.✏️ Why draw a wireframe before coding? (a) changes are quick (b) it saves data (c) it adds colours (d) it runs the app
12. 12.💾 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
13. 13.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Send button: 60 px tall
    Start button: 60 px tall
    Done button: 40 px tall
    Cancel button: 56 px tall
14. 14.🔘 Our rule: buttons are at least 48 px tall. The Save button is 32 px tall. How many px taller must it be?
15. 15.Which of these makes the app harder to use? (a) labels on every icon (b) big touch targets (c) captions on videos (d) tiny tap areas
16. 16.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Size → Pens → Search → Menu
    Design B: Home → Address → Cart
17. 17.Which of these is true of a final design? (a) has the real colours (b) is a quick sketch (c) uses plain grey boxes (d) has no real colours
18. 18.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ title text ]
    [ top bar ]
    [ filter buttons ]
    [ menu icon ]
    [ search box ]
    [ big picture ] (a) big picture (b) filter buttons (c) menu icon (d) title text
19. 19.🎨 A beautiful app that confuses everyone has ___. (a) perfect UX (b) no UI at all (c) good UX but poor UI (d) good UI but poor UX
20. 20.🧭 Which part of navigation goes to the last screen? (a) a tab bar (b) the back button (c) a menu button
21. 21.Which of these is about UX (the experience)? (a) the screen layout (b) how easy sign-up is (c) the icon shapes (d) the theme colours
22. 22.True or false: a class leaderboard fits saving on the phone. (a) False (b) True
23. 23.🔀 A screen with no way forward or back is called a ___. (a) tab bar (b) home screen (c) dead end (d) shortcut
24. 24.True or false: grey text on grey is good button design. (a) False (b) True
25. 25.💾 What number does this code show?
    let notes = ["Maths", "Hindi", "Music", "Science"];
    notes.push("Art");
    notes.push("Sports");
    show(notes.length);
26. 26.💾 What number does this code show?
    let notes = ["Art", "Music", "Science"];
    notes.push("Sports");
    notes.push("Hindi");
    show(notes.length);
27. 27.🔢 In a food-order flow, which comes first: “add it to the cart” or “pick a dish”? (a) pick a dish (b) add it to the cart
28. 28.True or false: buttons almost touching is good button design. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) how users feel after (b) the theme colours (c) how fast a task is done (d) whether users get lost
30. 30.Which of these helps everyone use the app? (a) icons with no labels (b) captions on videos (c) tiny tap areas (d) colour as the only clue
31. 31.💾 What number does this code show?
    let friends = ["Riya", "Arjun", "Kabir", "Aman"];
    friends.push("Zoya");
    friends.push("Meera");
    show(friends.length);
32. 32.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a final design (b) a wireframe
33. 33.🔘 Our rule: buttons are at least 48 px tall. The Save button is 44 px tall. How many px taller must it be?
34. 34.True or false: icons with no meaning is poor button design. (a) False (b) True
35. 35.🎨 UX stands for user ___. (a) experience (b) example (c) extra (d) express
36. 36.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) takes photos (d) makes text tiny
37. 37.Which of these fits saving on the phone? (a) a class leaderboard (b) photos on two devices (c) a draft you are typing (d) a shared to-do list
38. 38.🎨 Is this about UI or UX: the font size? (a) UI (b) UX
39. 39.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a sound (c) a text label (d) a long animation
40. 40.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ search box ]
    [ menu icon ]
    [ Save button ]
    [ Add button ]
    [ top bar ] (a) top bar (b) menu icon (c) Save button (d) search box

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