App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 703 · 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: shows where things go? (a) a final design (b) a wireframe
2. 2.True or false: a wireframe is a quick sketch. (a) True (b) False
3. 3.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. open “Video”
   2. open “Video”
   3. tap the Feed tab
   Which screen are you on now? (a) Video (b) Chat (c) Settings (d) Feed
4. 4.🎨 Who should you test the UX with? (a) only yourself (b) the app icon (c) nobody (d) real users
5. 5.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
   Design A: Home → Menu → Confirm → Pay
   Design B: Home → Size → Shop → Offers → Pay → Results → Search
6. 6.🔢 In a sign-up flow, which comes first: “make a password” or “open the app”? (a) open the app (b) make a password
7. 7.Which of these is about UI (the look)? (a) the font size (b) how many taps it takes (c) how fast a task is done (d) how users feel after
8. 8.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Next button: 48 px tall
   Save button: 48 px tall
   Start button: 44 px tall
   Back button: 52 px tall
9. 9.🔢 In a photo-post flow, which comes first: “add a filter” or “write a caption”? (a) write a caption (b) add a filter
10. 10.💾 What number does this code show?
    let friends = ["Meera", "Zoya"];
    friends.push("Kabir");
    show(friends.length);
11. 11.🔍 Which is the odd one out? (a) labels on every icon (b) text that can grow (c) tiny tap areas (d) captions on videos
12. 12.Which of these is about UI (the look)? (a) how many taps it takes (b) how easy sign-up is (c) the screen layout (d) how fast a task is done
13. 13.Which of these fits saving in the cloud? (a) the sound on/off setting (b) a draft you are typing (c) notes to read offline (d) photos on two devices
14. 14.💾 pop() takes off the last item. What does this code show?
    let friends = ["Zoya", "Meera", "Aman"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Meera (b) Zoya (c) Aman
15. 15.True or false: a shared to-do list fits saving on the phone. (a) True (b) False
16. 16.♿ Why add captions to videos? (a) to hide the sound (b) to slow them down (c) to add colour (d) so anyone can follow
17. 17.Which colour pair is hard to read? (a) dark blue on white (b) dark blue on black (c) white on dark green (d) black on pale grey
18. 18.🔘 Our rule: buttons are at least 48 px tall. The Start button is 24 px tall. How many px taller must it be?
19. 19.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Results → Pay → Shop
    Design B: Home → Confirm → Cart
20. 20.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Confirm → Cart → Pens → Results
    Design B: Home → Size → Pens → Results → Menu → Cart
21. 21.💾 What number does this code show?
    let coins = 6;
    coins = coins - 5;
    coins = coins + 5;
    show(coins);
22. 22.Which of these is true of a menu button? (a) goes to the last screen (b) opens a list of pages (c) switches main sections (d) sits at the bottom
23. 23.✏️ What is the easiest way to draw a first wireframe? (a) a phone case (b) a 3D printer (c) a microphone (d) pencil and paper
24. 24.🎨 Is this about UI or UX: whether users get lost? (a) UX (b) UI
25. 25.🔀 What is a user flow? (a) the path through screens (b) a colour theme (c) a type of font (d) a charging cable
26. 26.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Shop → Item → Search → Cart
    Design B: Home → Cart → Offers (a) Design B (b) Design A
27. 27.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 14 px
    Title: 11 px
    Footer: 11 px
28. 28.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ tab bar ]
    [ big picture ]
    [ Add button ]
    [ menu icon ]
    [ Save button ]
    [ search box ] (a) big picture (b) Save button (c) tab bar (d) search box
29. 29.🔢 In a quiz-app flow, what comes right after “read a question”? (a) tap “Start quiz” (b) pick an answer (c) see the final score (d) see if it is right
30. 30.Which colour pair is easy to read? (a) white on black (b) red on green (c) dark blue on black (d) yellow on white
31. 31.🔍 Which is the odd one out? (a) sudden loud sounds (b) labels on every icon (c) strong colour contrast (d) text that can grow
32. 32.🎨 Is this about UI or UX: how easy sign-up is? (a) UI (b) UX
33. 33.✏️ Is this true of a wireframe or of a final design: uses the final pictures? (a) a final design (b) a wireframe
34. 34.💾 What number does this code show?
    let notes = ["Music", "Sports", "Art", "Science"];
    notes.push("Maths");
    show(notes.length);
35. 35.Which colour pair is easy to read? (a) dark blue on black (b) yellow on white (c) pale pink on white (d) black on yellow
36. 36.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pens → Search → Results → Shop
    Design B: Home → Address → Search → Cart → Offers → Menu
37. 37.Which of these fits saving on the phone? (a) chat messages to friends (b) a class leaderboard (c) photos on two devices (d) a draft you are typing
38. 38.🔍 Which is the odd one out? (a) the icon shapes (b) how users feel after (c) whether users get lost (d) how easy sign-up is
39. 39.Which of these helps everyone use the app? (a) colour as the only clue (b) big touch targets (c) sudden loud sounds (d) icons with no labels
40. 40.✏️ Is this true of a wireframe or of a final design: has no real colours? (a) a final design (b) a wireframe

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