App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 79 · 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.🖼️ How many parts (boxes) does this wireframe have?
   [ big picture ]
   [ menu icon ]
   [ title text ]
   [ Save button ]
2. 2.🔘 Our rule: buttons are at least 48 px tall. The Next button is 32 px tall. How many px taller must it be?
3. 3.💾 What number does this code show?
   let notes = ["Music", "Art"];
   notes.push("Maths");
   notes.push("Science");
   show(notes.length);
4. 4.💾 pop() takes off the last item. What does this code show?
   let friends = ["Meera", "Kabir", "Riya", "Aman"];
   friends.pop();
   show(friends[friends.length - 1]); (a) Meera (b) Aman (c) Riya (d) Kabir
5. 5.Which of these is about UI (the look)? (a) how easy sign-up is (b) whether users get lost (c) how fast a task is done (d) the icon shapes
6. 6.🎨 A beautiful app that confuses everyone has ___. (a) no UI at all (b) good UX but poor UI (c) perfect UX (d) good UI but poor UX
7. 7.🔘 Is this good or poor button design: strong colour contrast? (a) poor design (b) good design
8. 8.🔢 In a photo-post flow, which comes FIRST? (a) take the photo (b) post the photo (c) add a filter (d) open the camera screen
9. 9.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) helps everyone (b) makes it harder
10. 10.🎨 Fewer taps to finish a task usually means ___. (a) worse UX (b) better UX (c) a bigger app (d) more colours
11. 11.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) in the cloud (b) on the phone
12. 12.Which colour pair is easy to read? (a) dark blue on black (b) pale pink on white (c) light grey on white (d) black on yellow
13. 13.🎨 UI stands for user ___. (a) internet (b) input (c) idea (d) interface
14. 14.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 21 px
    Title: 20 px
    Body text: 26 px
    Footer: 18 px
    Caption: 12 px (a) Caption (b) Menu (c) Title (d) Body text
15. 15.🔘 Our rule: buttons are at least 48 px tall. The Done button is 32 px tall. How many px taller must it be?
16. 16.Which of these is true of the back button? (a) undoes one move (b) switches main sections (c) shows 3 to 5 icons (d) hides extra links
17. 17.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 19 px
    Footer: 20 px
    Body text: 22 px
18. 18.🧭 Which part of navigation sits at the bottom? (a) a tab bar (b) the back button (c) a menu button
19. 19.💾 pop() takes off the last item. What does this code show?
    let friends = ["Arjun", "Meera", "Aman", "Riya"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Meera (b) Aman (c) Arjun (d) Riya
20. 20.🧭 Which part of navigation hides extra links? (a) the back button (b) a menu button (c) a tab bar
21. 21.Which of these is true of a tab bar? (a) hides extra links (b) undoes one move (c) switches main sections (d) opens a list of pages
22. 22.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. open “Edit photo”
    3. open “Help page”
    4. open “Help page”
    5. tap the Profile tab
    Which screen are you on now? (a) Profile (b) Home (c) Help page (d) Edit photo
23. 23.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 72 px tall
    Done button: 48 px tall
    Next button: 44 px tall (a) Save (b) Done (c) Next
24. 24.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Next button: 48 px tall
    Save button: 52 px tall
    Back button: 32 px tall (a) Save (b) Next (c) Back
25. 25.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
26. 26.✏️ What is the easiest way to draw a first wireframe? (a) pencil and paper (b) a microphone (c) a phone case (d) a 3D printer
27. 27.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Match report”
    2. tap the Search tab
    3. tap the Profile tab
    4. open “Help page”
    How many times must you tap Back to reach the main screen of this tab?
28. 28.🔢 In a photo-post flow, which comes LAST? (a) post the photo (b) take the photo (c) add a filter (d) open the camera screen
29. 29.True or false: strong colour contrast is good button design. (a) False (b) True
30. 30.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a final design (b) a wireframe
31. 31.🖼️ In this wireframe (top to bottom), what is right below the Add button?
    [ search box ]
    [ Add button ]
    [ Save button ]
    [ big picture ] (a) big picture (b) Save button (c) search box
32. 32.✏️ What is a wireframe? (a) the finished app (b) a charging cable (c) a type of password (d) a simple screen sketch
33. 33.🌗 Is white on dark green easy or hard to read on a button? (a) hard to read (b) easy to read
34. 34.🔢 In a sign-up flow, which comes first: “enter the code sent” or “see the home screen”? (a) enter the code sent (b) see the home screen
35. 35.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Shop → Cart
    Design B: Home → Cart → Address → Results → Search → Pens → Size
36. 36.🔢 In a food-order flow, which comes first: “open the menu” or “check the cart”? (a) check the cart (b) open the menu
37. 37.🔍 Which is the odd one out? (a) fast-flashing lights (b) colour as the only clue (c) icons with no labels (d) captions on videos
38. 38.Which of these helps everyone use the app? (a) tiny tap areas (b) captions on videos (c) colour as the only clue (d) fast-flashing lights
39. 39.True or false: a wireframe looks like the real app. (a) False (b) True
40. 40.🔢 In a sign-up flow, which comes LAST? (a) open the app (b) enter the code sent (c) type name and email (d) see the home screen

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