App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 732 · 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: text is at least 16 px. Which text on this screen is too small?
   Label: 22 px
   Hint: 18 px
   Caption: 26 px
   Title: 21 px
   Body text: 10 px (a) Hint (b) Body text (c) Label (d) Caption
2. 2.🔢 In a food-order flow, which comes FIRST? (a) add it to the cart (b) open the menu (c) check the cart (d) track the order
3. 3.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 12 px
   Footer: 13 px
   Title: 11 px
   Hint: 12 px
   Label: 10 px
4. 4.🧭 Which part of navigation switches main sections? (a) the back button (b) a menu button (c) a tab bar
5. 5.True or false: chat messages to friends fits saving on the phone. (a) False (b) True
6. 6.True or false: a draft you are typing fits saving in the cloud. (a) False (b) True
7. 7.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Cart → Item → Pay → Pens → Search
   Design B: Home → Pay → Shop (a) Design B (b) Design A
8. 8.True or false: photos on two devices fits saving in the cloud. (a) False (b) True
9. 9.🔢 In a sign-up flow, what comes right after “type name and email”? (a) see the home screen (b) tap “Sign up” (c) make a password (d) open the app
10. 10.🔘 Is this good or poor button design: grey text on grey? (a) poor design (b) good design
11. 11.True or false: “tiny tap areas” makes the app harder to use. (a) True (b) False
12. 12.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
13. 13.Which colour pair is hard to read? (a) white on dark green (b) black on pale grey (c) light grey on white (d) dark blue on white
14. 14.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ big picture ]
    [ filter buttons ]
    [ top bar ]
    [ Add button ] (a) big picture (b) top bar (c) filter buttons (d) Add button
15. 15.💾 What number does this code show?
    let notes = ["Hindi", "Sports"];
    notes.push("Science");
    show(notes.length);
16. 16.🔘 Is this good or poor button design: space between buttons? (a) good design (b) poor design
17. 17.🌗 Is black on pale grey easy or hard to read on a button? (a) hard to read (b) easy to read
18. 18.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pens → Address
    Design B: Home → Menu → Address → Pens → Search → Results
19. 19.🌗 Is yellow on white easy or hard to read on a button? (a) easy to read (b) hard to read
20. 20.🔢 In a quiz-app flow, what comes right after “tap “Start quiz””? (a) read a question (b) see the final score (c) pick an answer (d) see if it is right
21. 21.✏️ Is this true of a wireframe or of a final design: has no real colours? (a) a final design (b) a wireframe
22. 22.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) helps everyone (b) makes it harder
23. 23.🔢 In a sign-up flow, what comes right after “tap “Sign up””? (a) see the home screen (b) type name and email (c) make a password (d) enter the code sent
24. 24.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Match report”
    3. open “Video”
    4. tap Back
    5. tap the Home tab
    Which screen are you on now? (a) Search (b) Home (c) Match report (d) Video
25. 25.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. tap the Search tab
    3. tap the Search tab
    4. tap the Search tab
    5. open “Match report”
    Which screen are you on now? (a) Home (b) Search (c) Match report (d) Profile
26. 26.True or false: whether users get lost is about UI (the look). (a) False (b) True
27. 27.Which of these helps everyone use the app? (a) tiny tap areas (b) colour as the only clue (c) captions on videos (d) icons with no labels
28. 28.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
29. 29.🔀 In a good flow, each screen should lead to ___. (a) a clear next step (b) a random page (c) a dead end (d) the same screen
30. 30.🌗 Is dark blue on black easy or hard to read on a button? (a) hard to read (b) easy to read
31. 31.🔍 Which is the odd one out? (a) text that can grow (b) strong colour contrast (c) sudden loud sounds (d) captions on videos
32. 32.True or false: a wireframe has the real colours. (a) True (b) False
33. 33.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Shop → Results → Pay → Item → Offers
    Design B: Home → Confirm → Pens → Address → Offers (a) Design A (b) Design B
34. 34.🔢 In a sign-up flow, what comes right after “enter the code sent”? (a) make a password (b) type name and email (c) see the home screen (d) tap “Sign up”
35. 35.🖼️ In this wireframe (top to bottom), what is right below the Add button?
    [ Save button ]
    [ menu icon ]
    [ filter buttons ]
    [ list of items ]
    [ Add button ]
    [ search box ] (a) Save button (b) search box (c) menu icon (d) filter buttons
36. 36.Which of these is true of a tab bar? (a) shows 3 to 5 icons (b) undoes one move (c) hides extra links (d) goes to the last screen
37. 37.🧭 Tapping a tab usually takes you to ___. (a) the last app used (b) that tab’s main screen (c) the phone settings (d) a random page
38. 38.True or false: the icon shapes is about UI (the look). (a) True (b) False
39. 39.🔘 Our rule: buttons are at least 48 px tall. The Help button is 20 px tall. How many px taller must it be?
40. 40.💾 What is a variable? (a) a phone setting (b) a named box for a value (c) a type of screen (d) a picture

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