App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 400 · 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.🔀 What is a user flow? (a) a charging cable (b) a type of font (c) a colour theme (d) the path through screens
2. 2.Which of these makes the app harder to use? (a) big touch targets (b) strong colour contrast (c) text that can grow (d) tiny tap areas
3. 3.🖼️ How many parts (boxes) does this wireframe have?
   [ tab bar ]
   [ list of items ]
   [ top bar ]
   [ Save button ]
   [ search box ]
4. 4.🔘 Is this good or poor button design: space between buttons? (a) good design (b) poor design
5. 5.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Menu → Results
   Design B: Home → Pens → Shop → Pay → Cart (a) Design A (b) Design B
6. 6.🔘 Our rule: buttons are at least 48 px tall. The Save button is 20 px tall. How many px taller must it be?
7. 7.🔘 Our rule: buttons are at least 48 px tall. The Help button is 40 px tall. How many px taller must it be?
8. 8.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
   [ list of items ]
   [ top bar ]
   [ Save button ]
   [ title text ]
   [ Add button ]
   [ menu icon ] (a) menu icon (b) top bar (c) Add button (d) Save button
9. 9.True or false: buttons almost touching is poor button design. (a) True (b) False
10. 10.🔘 Is this good or poor button design: grey text on grey? (a) poor design (b) good design
11. 11.🎨 Is this about UI or UX: how many taps it takes? (a) UI (b) UX
12. 12.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap Back
    3. tap the Home tab
    4. open “Edit photo”
    5. tap Back
    Which screen are you on now? (a) Home (b) Edit photo (c) Search (d) Friend list
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 23 px
    Footer: 13 px
    Caption: 22 px (a) Caption (b) Body text (c) Footer
14. 14.🔘 Is this good or poor button design: icons with no meaning? (a) good design (b) poor design
15. 15.Which of these fits saving on the phone? (a) photos on two devices (b) a class leaderboard (c) notes to read offline (d) chat messages to friends
16. 16.🌗 Is black on pale grey easy or hard to read on a button? (a) easy to read (b) hard to read
17. 17.True or false: “big touch targets” helps everyone use the app. (a) False (b) True
18. 18.Which of these is true of a final design? (a) uses plain grey boxes (b) has the real colours (c) has no real colours (d) is a quick sketch
19. 19.🧭 About how many tabs suit a tab bar best? (a) 1 (b) 10 to 12 (c) 3 to 5 (d) 20
20. 20.🔢 In a quiz-app flow, which comes first: “tap “Start quiz”” or “see the final score”? (a) see the final score (b) tap “Start quiz”
21. 21.💾 What number does this code show?
    let friends = ["Aman", "Zoya", "Riya"];
    friends.push("Arjun");
    friends.push("Kabir");
    show(friends.length);
22. 22.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Save button: 64 px tall
    Cancel button: 56 px tall
    Next button: 36 px tall
23. 23.🎨 UI stands for user ___. (a) internet (b) input (c) interface (d) idea
24. 24.💾 Where should the app save photos on two devices: on the phone or in the cloud? (a) on the phone (b) in the cloud
25. 25.🌗 Is white on dark green easy or hard to read on a button? (a) easy to read (b) hard to read
26. 26.🎨 Is this about UI or UX: the font size? (a) UI (b) UX
27. 27.🔘 Is this good or poor button design: buttons almost touching? (a) poor design (b) good design
28. 28.💾 pop() takes off the last item. What does this code show?
    let notes = ["Sports", "Art", "Hindi"];
    notes.pop();
    show(notes[notes.length - 1]); (a) Art (b) Sports (c) Hindi
29. 29.🖼️ In this wireframe (top to bottom), what is right below the Save button?
    [ top bar ]
    [ tab bar ]
    [ Save button ]
    [ filter buttons ]
    [ search box ]
    [ title text ] (a) tab bar (b) top bar (c) filter buttons (d) title text
30. 30.✏️ Why draw a wireframe before coding? (a) it saves data (b) changes are quick (c) it runs the app (d) it adds colours
31. 31.Which of these makes the app harder to use? (a) strong colour contrast (b) colour as the only clue (c) captions on videos (d) big touch targets
32. 32.🔢 In a sign-up flow, which comes first: “see the home screen” or “open the app”? (a) see the home screen (b) open the app
33. 33.True or false: a wireframe shows where things go. (a) False (b) True
34. 34.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. tap the Quiz tab
    3. open “Match report”
    4. open “Match report”
    5. tap Back
    How many times must you tap Back to reach the main screen of this tab?
35. 35.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Edit photo”
    2. tap Back
    3. tap the Lessons tab
    4. open “Video”
    5. tap Back
    Which screen are you on now? (a) Video (b) Lessons (c) Quiz (d) Edit photo
36. 36.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Video”
    3. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
37. 37.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) helps everyone (b) makes it harder
38. 38.🔍 Which is the odd one out? (a) the theme colours (b) the button colours (c) how easy sign-up is (d) the screen layout
39. 39.Which of these is true of a wireframe? (a) shows the real fonts (b) uses plain grey boxes (c) uses the final pictures (d) has the real colours
40. 40.🌗 Is black on yellow easy or hard to read on a button? (a) easy to read (b) hard to read

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