App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 922 · 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.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Back button: 36 px tall
   Save button: 36 px tall
   Next button: 44 px tall
2. 2.✏️ Do wireframes usually show the final colours? (a) Yes (b) No
3. 3.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Start button: 44 px tall
   Save button: 44 px tall
   Back button: 36 px tall
   Help button: 40 px tall
4. 4.🖼️ In this wireframe (top to bottom), what is right below the filter buttons?
   [ filter buttons ]
   [ menu icon ]
   [ big picture ]
   [ list of items ]
   [ title text ]
   [ tab bar ] (a) big picture (b) menu icon (c) list of items (d) title text
5. 5.True or false: your last game level fits saving on the phone. (a) True (b) False
6. 6.True or false: a final design uses plain grey boxes. (a) True (b) False
7. 7.🔘 Our rule: buttons are at least 48 px tall. The Help button is 36 px tall. How many px taller must it be?
8. 8.💾 What does this code show? (Positions start at 0.)
   let friends = ["Aman", "Riya", "Kabir"];
   show(friends[2]); (a) Riya (b) Aman (c) Kabir
9. 9.Which of these is true of a tab bar? (a) hides extra links (b) opens a list of pages (c) shows 3 to 5 icons (d) undoes one move
10. 10.🔢 In a food-order flow, which comes FIRST? (a) check the cart (b) open the menu (c) pay for the order (d) add it to the cart
11. 11.True or false: how users feel after is about UI (the look). (a) False (b) True
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Footer: 19 px
    Hint: 23 px
    Title: 9 px
    Body text: 28 px
    Menu: 20 px (a) Hint (b) Footer (c) Body text (d) Title
13. 13.🔢 In a food-order flow, which comes first: “track the order” or “add it to the cart”? (a) add it to the cart (b) track the order
14. 14.Which of these is true of the back button? (a) shows 3 to 5 icons (b) hides extra links (c) undoes one move (d) opens a list of pages
15. 15.🎨 Fewer taps to finish a task usually means ___. (a) a bigger app (b) more colours (c) better UX (d) worse UX
16. 16.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap the Search tab
    3. open “Score card”
    Which screen are you on now? (a) Help page (b) Score card (c) Home (d) Search
17. 17.🔍 Which is the odd one out? (a) the font size (b) the theme colours (c) the icon shapes (d) how easy sign-up is
18. 18.🔢 In a sign-up flow, which comes first: “see the home screen” or “tap “Sign up””? (a) tap “Sign up” (b) see the home screen
19. 19.Which colour pair is hard to read? (a) white on dark green (b) dark blue on black (c) black on pale grey (d) dark blue on white
20. 20.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. tap Back
    3. open “Map”
    4. tap Back
    5. tap the Lessons tab
    Which screen are you on now? (a) Map (b) Quiz (c) Friend list (d) Lessons
21. 21.True or false: a wireframe has the real colours. (a) True (b) False
22. 22.🌗 Is white on dark green easy or hard to read on a button? (a) easy to read (b) hard to read
23. 23.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Score card”
    2. tap the Home tab
    3. open “Map”
    How many times must you tap Back to reach the main screen of this tab?
24. 24.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Menu → Confirm → Item
    Design B: Home → Address → Cart
25. 25.🔢 In a photo-post flow, which comes FIRST? (a) take the photo (b) open the camera screen (c) add a filter (d) post the photo
26. 26.🔢 In a food-order flow, what comes right after “pick a dish”? (a) open the menu (b) add it to the cart (c) track the order (d) check the cart
27. 27.True or false: “icons with no labels” helps everyone use the app. (a) True (b) False
28. 28.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 48 px tall
    Save button: 24 px tall
    Start button: 68 px tall (a) Cancel (b) Start (c) Save
29. 29.Which of these is true of the back button? (a) switches main sections (b) sits at the bottom (c) shows 3 to 5 icons (d) goes to the last screen
30. 30.Which of these fits saving in the cloud? (a) your last game level (b) photos on two devices (c) notes to read offline (d) the sound on/off setting
31. 31.True or false: your last game level fits saving in the cloud. (a) False (b) True
32. 32.🔘 Is this good or poor button design: a clear word like Save? (a) poor design (b) good design
33. 33.True or false: space between buttons is poor button design. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) how easy sign-up is (b) the screen layout (c) how many taps it takes (d) whether users get lost
35. 35.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Size → Shop → Address → Item → Confirm → Pens
    Design B: Home → Search → Menu
36. 36.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Offers → Pay
    Design B: Home → Address → Pens → Shop → Offers
37. 37.♿ Does this help everyone, or make the app harder to use: captions on videos? (a) helps everyone (b) makes it harder
38. 38.💾 What number does this code show?
    let score = 3;
    score = score - 1;
    score = score + 3;
    show(score);
39. 39.🔢 In a food-order flow, which comes first: “check the cart” or “track the order”? (a) track the order (b) check the cart
40. 40.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Item → Address → Pens → Size
    Design B: Home → Address → Search → Confirm → Item → Menu

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