App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 939 · 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 does the back button usually do? (a) goes to the last screen (b) deletes the page (c) opens settings (d) closes all apps
2. 2.Which of these is true of a final design? (a) is a quick sketch (b) uses plain grey boxes (c) looks like the real app (d) has no real colours
3. 3.🔢 In a photo-post flow, which comes first: “post the photo” or “write a caption”? (a) post the photo (b) write a caption
4. 4.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Match report”
   2. tap Back
   3. open “Edit photo”
   How many times must you tap Back to reach the main screen of this tab?
5. 5.True or false: the theme colours is about UX (the experience). (a) True (b) False
6. 6.🧭 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. open “Match report”
   Which screen are you on now? (a) Friend list (b) Map (c) Match report (d) Lessons
7. 7.🔍 Which is the odd one out? (a) how many taps it takes (b) the font size (c) how easy sign-up is (d) how fast a task is done
8. 8.🧭 Tapping a tab usually takes you to ___. (a) the phone settings (b) the last app used (c) a random page (d) that tab’s main screen
9. 9.💾 pop() takes off the last item. What does this code show?
   let notes = ["Science", "Maths", "Art", "Music"];
   notes.pop();
   show(notes[notes.length - 1]); (a) Maths (b) Music (c) Art (d) Science
10. 10.🔢 In a food-order flow, which comes LAST? (a) pick a dish (b) add it to the cart (c) open the menu (d) track the order
11. 11.🌗 Is light grey on white easy or hard to read on a button? (a) easy to read (b) hard to read
12. 12.🖼️ In this wireframe (top to bottom), what is right above the list of items?
    [ Add button ]
    [ tab bar ]
    [ Save button ]
    [ list of items ]
    [ search box ] (a) tab bar (b) Save button (c) search box (d) Add button
13. 13.True or false: a final design is a quick sketch. (a) False (b) True
14. 14.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Confirm → Shop → Offers → Menu → Search
    Design B: Home → Offers → Search → Item → Cart
15. 15.💾 What does this code show? (Positions start at 0.)
    let notes = ["Music", "Science", "Hindi"];
    show(notes[1]); (a) Hindi (b) Science (c) Music
16. 16.🔍 Which is the odd one out? (a) sudden loud sounds (b) text that can grow (c) icons with no labels (d) fast-flashing lights
17. 17.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) the server (c) fast typists (d) colour-blind users
18. 18.🔘 Our rule: buttons are at least 48 px tall. The Back button is 24 px tall. How many px taller must it be?
19. 19.True or false: your last game level fits saving on the phone. (a) True (b) False
20. 20.🔢 In a sign-up flow, what comes right after “open the app”? (a) see the home screen (b) tap “Sign up” (c) type name and email (d) make a password
21. 21.🔍 Which is the odd one out? (a) the button colours (b) the screen layout (c) the font size (d) whether users get lost
22. 22.🔢 In a sign-up flow, which comes first: “open the app” or “see the home screen”? (a) open the app (b) see the home screen
23. 23.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Friend list”
    2. tap Back
    3. open “Match report”
    Which screen are you on now? (a) Friend list (b) Search (c) Match report (d) Home
24. 24.🔢 In a quiz-app flow, which comes LAST? (a) see the final score (b) see if it is right (c) tap “Start quiz” (d) read a question
25. 25.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Confirm → Search → Pens
    Design B: Home → Results → Search → Pens → Item → Confirm
26. 26.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Feed tab
    2. open “Badges”
    3. tap the Chat tab
    Which screen are you on now? (a) Feed (b) Settings (c) Chat (d) Badges
27. 27.Which of these is about UX (the experience)? (a) the button colours (b) the font size (c) the screen layout (d) how easy sign-up is
28. 28.True or false: a final design looks like the real app. (a) True (b) False
29. 29.🔢 In a photo-post flow, what comes right after “add a filter”? (a) take the photo (b) post the photo (c) write a caption (d) open the camera screen
30. 30.✏️ Is this true of a wireframe or of a final design: uses the final pictures? (a) a final design (b) a wireframe
31. 31.Which colour pair is hard to read? (a) yellow on white (b) white on black (c) black on pale grey (d) black on yellow
32. 32.🖼️ In this wireframe (top to bottom), what is right above the list of items?
    [ search box ]
    [ Add button ]
    [ filter buttons ]
    [ list of items ]
    [ big picture ]
    [ top bar ] (a) search box (b) filter buttons (c) big picture (d) Add button
33. 33.True or false: the sound on/off setting fits saving in the cloud. (a) True (b) False
34. 34.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Results → Menu → Shop → Offers → Pay
    Design B: Home → Menu → Shop → Size → Pay → Cart → Search (a) Design A (b) Design B
35. 35.True or false: the screen layout is about UI (the look). (a) True (b) False
36. 36.✏️ A box with a cross in a wireframe usually means ___. (a) delete this (b) a closed app (c) an error (d) a picture goes here
37. 37.🖼️ How many parts (boxes) does this wireframe have?
    [ tab bar ]
    [ top bar ]
    [ list of items ]
    [ filter buttons ]
    [ big picture ]
    [ search box ]
38. 38.🔘 Our rule: buttons are at least 48 px tall. The Save button is 40 px tall. How many px taller must it be?
39. 39.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) on the phone (b) in the cloud
40. 40.🌗 Is dark blue on white easy or hard to read on a button? (a) hard to read (b) easy to read

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