App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 946 · 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.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. tap the Feed tab
   2. open “Match report”
   3. open “Badges”
   How many times must you tap Back to reach the main screen of this tab?
2. 2.True or false: a wireframe has no real colours. (a) True (b) False
3. 3.True or false: a big, easy tap area is poor button design. (a) False (b) True
4. 4.🖼️ In this wireframe (top to bottom), what is right above the top bar?
   [ filter buttons ]
   [ title text ]
   [ top bar ]
   [ search box ]
   [ list of items ] (a) list of items (b) filter buttons (c) title text (d) search box
5. 5.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Search → Menu
   Design B: Home → Offers → Size → Cart → Search → Results → Shop
6. 6.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a wireframe (b) a final design
7. 7.True or false: “strong colour contrast” makes the app harder to use. (a) True (b) False
8. 8.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
9. 9.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Footer: 28 px
   Label: 21 px
   Hint: 23 px
   Body text: 17 px
   Title: 9 px (a) Footer (b) Label (c) Title (d) Hint
10. 10.True or false: a big, easy tap area is good button design. (a) False (b) True
11. 11.🔢 In a food-order flow, what comes right after “add it to the cart”? (a) pick a dish (b) track the order (c) open the menu (d) check the cart
12. 12.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pay → Search
    Design B: Home → Results → Item → Shop → Address → Search → Size (a) Design A (b) Design B
13. 13.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ search box ]
    [ tab bar ]
    [ filter buttons ]
    [ title text ]
    [ Save button ]
    [ Add button ] (a) Save button (b) tab bar (c) Add button (d) filter buttons
14. 14.True or false: a final design shows the real fonts. (a) True (b) False
15. 15.🔢 In a sign-up flow, which comes FIRST? (a) enter the code sent (b) open the app (c) tap “Sign up” (d) see the home screen
16. 16.🖼️ In this wireframe (top to bottom), what is right below the Add button?
    [ title text ]
    [ Add button ]
    [ big picture ]
    [ Save button ] (a) title text (b) big picture (c) Save button
17. 17.🔢 In a photo-post flow, what comes right after “open the camera screen”? (a) take the photo (b) add a filter (c) write a caption (d) post the photo
18. 18.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) plays music (d) reads the screen aloud
19. 19.💾 What does this code show? (Positions start at 0.)
    let notes = ["Science", "Art", "Music", "Maths", "Hindi"];
    show(notes[0]); (a) Music (b) Art (c) Maths (d) Science
20. 20.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
21. 21.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Cart → Results → Menu → Pay
    Design B: Home → Size → Address → Search
22. 22.Which of these makes the app harder to use? (a) sudden loud sounds (b) text that can grow (c) labels on every icon (d) big touch targets
23. 23.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. tap the Feed tab
    3. open “Match report”
    4. open “Match report”
    5. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
24. 24.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Me tab
    2. open “Badges”
    3. tap Back
    Which screen are you on now? (a) Quiz (b) Badges (c) Me (d) Lessons
25. 25.True or false: the sound on/off setting fits saving on the phone. (a) False (b) True
26. 26.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Next button: 64 px tall
    Send button: 40 px tall
    Save button: 60 px tall
    Done button: 60 px tall
27. 27.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) helps everyone (b) makes it harder
28. 28.Which of these is true of a menu button? (a) opens a list of pages (b) undoes one move (c) sits at the bottom (d) shows 3 to 5 icons
29. 29.🧭 Which part of navigation opens a list of pages? (a) a tab bar (b) the back button (c) a menu button
30. 30.🔢 In a sign-up flow, which comes first: “tap “Sign up”” or “make a password”? (a) make a password (b) tap “Sign up”
31. 31.🔘 Is this good or poor button design: a clear word like Save? (a) poor design (b) good design
32. 32.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ Add button ]
    [ title text ]
    [ tab bar ]
    [ top bar ] (a) tab bar (b) title text (c) top bar (d) Add button
33. 33.🔢 In a food-order flow, which comes FIRST? (a) check the cart (b) pick a dish (c) add it to the cart (d) open the menu
34. 34.Which colour pair is easy to read? (a) light grey on white (b) black on pale grey (c) pale pink on white (d) dark blue on black
35. 35.🌗 Is dark blue on white easy or hard to read on a button? (a) hard to read (b) easy to read
36. 36.True or false: “tiny tap areas” helps everyone use the app. (a) True (b) False
37. 37.True or false: a final design looks like the real app. (a) True (b) False
38. 38.💾 Where should the app save the sound on/off setting: on the phone or in the cloud? (a) on the phone (b) in the cloud
39. 39.🧭 Where is a tab bar usually placed in a phone app? (a) at the bottom (b) nowhere (c) inside a button (d) in the middle
40. 40.🔍 Which is the odd one out? (a) the button colours (b) the theme colours (c) how many taps it takes (d) the icon shapes

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