App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 456 · 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 Home, Search, Profile. You start on Home, then:
   1. tap the Home tab
   2. open “Match report”
   3. open “Badges”
   4. open “Edit photo”
   How many times must you tap Back to reach the main screen of this tab?
2. 2.True or false: your last game level fits saving on the phone. (a) True (b) False
3. 3.🔘 Is this good or poor button design: buttons almost touching? (a) good design (b) poor design
4. 4.✏️ Do wireframes usually show the final colours? (a) Yes (b) No
5. 5.True or false: a tiny 20 px button is poor button design. (a) False (b) True
6. 6.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Confirm → Cart → Offers → Pens
   Design B: Home → Offers → Pens → Item → Shop → Pay → Cart (a) Design A (b) Design B
7. 7.🧭 Why should every screen show where you are? (a) so users do not get lost (b) to use more battery (c) to hide the menu (d) to look busy
8. 8.True or false: a final design has the real colours. (a) True (b) False
9. 9.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Friend list”
   2. tap the Quiz tab
   3. open “Map”
   4. tap the Me tab
   5. tap the Lessons tab
   Which screen are you on now? (a) Lessons (b) Map (c) Friend list (d) Quiz
10. 10.True or false: a final design shows where things go. (a) True (b) False
11. 11.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Search → Offers → Confirm → Results → Pay
    Design B: Home → Size → Menu → Shop → Results → Cart → Search (a) Design A (b) Design B
12. 12.🔢 In a food-order flow, which comes LAST? (a) pay for the order (b) add it to the cart (c) pick a dish (d) track the order
13. 13.🔢 In a quiz-app flow, which comes first: “see the final score” or “read a question”? (a) read a question (b) see the final score
14. 14.🎨 Is this about UI or UX: how many taps it takes? (a) UI (b) UX
15. 15.True or false: a final design is a quick sketch. (a) False (b) True
16. 16.🔢 In a photo-post flow, what comes right after “take the photo”? (a) add a filter (b) open the camera screen (c) post the photo (d) write a caption
17. 17.True or false: chat messages to friends fits saving in the cloud. (a) True (b) False
18. 18.🖼️ How many parts (boxes) does this wireframe have?
    [ Save button ]
    [ big picture ]
    [ title text ]
    [ top bar ]
19. 19.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Results → Pay → Confirm → Menu
    Design B: Home → Shop → Cart
20. 20.💾 What number does this code show?
    let score = 3;
    score = score - 1;
    score = score + 2;
    show(score);
21. 21.Which colour pair is easy to read? (a) dark blue on black (b) black on yellow (c) pale pink on white (d) red on green
22. 22.🔢 In a photo-post flow, which comes LAST? (a) write a caption (b) open the camera screen (c) add a filter (d) post the photo
23. 23.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) colour-blind users (c) the battery (d) fast typists
24. 24.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Settings tab
    2. tap the Settings tab
    3. open “Badges”
    4. tap the Settings tab
    5. open “Score card”
    How many times must you tap Back to reach the main screen of this tab?
25. 25.🖼️ In this wireframe (top to bottom), what is right above the Add button?
    [ tab bar ]
    [ top bar ]
    [ Add button ]
    [ list of items ] (a) tab bar (b) top bar (c) list of items
26. 26.Which of these makes the app harder to use? (a) icons with no labels (b) text that can grow (c) labels on every icon (d) strong colour contrast
27. 27.💾 What number does this code show?
    let score = 5;
    score = score - 2;
    score = score + 2;
    show(score);
28. 28.♿ Accessibility means an app works for ___. (a) only the coder (b) only experts (c) nobody (d) everyone
29. 29.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ big picture ]
    [ top bar ]
    [ title text ]
    [ Add button ] (a) title text (b) big picture (c) top bar (d) Add button
30. 30.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. open “Help page”
    3. open “Edit photo”
    4. tap Back
    Which screen are you on now? (a) Score card (b) Help page (c) Feed (d) Edit photo
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 17 px
    Body text: 17 px
    Hint: 17 px
    Footer: 13 px (a) Footer (b) Title (c) Body text (d) Hint
32. 32.🌗 Is black on pale grey easy or hard to read on a button? (a) hard to read (b) easy to read
33. 33.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pens → Pay → Cart → Address → Confirm
    Design B: Home → Shop → Offers → Pens → Results
34. 34.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Map”
    2. open “Match report”
    3. tap the Home tab
    4. tap the Search tab
    How many times must you tap Back to reach the main screen of this tab?
35. 35.🔢 In a photo-post flow, which comes first: “write a caption” or “take the photo”? (a) write a caption (b) take the photo
36. 36.🎨 UI stands for user ___. (a) input (b) idea (c) internet (d) interface
37. 37.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Edit photo”
    2. tap the Home tab
    3. open “Help page”
    How many times must you tap Back to reach the main screen of this tab?
38. 38.💾 Where should the app save photos on two devices: on the phone or in the cloud? (a) in the cloud (b) on the phone
39. 39.✏️ Is this true of a wireframe or of a final design: uses the final pictures? (a) a final design (b) a wireframe
40. 40.🧭 About how many tabs suit a tab bar best? (a) 10 to 12 (b) 3 to 5 (c) 1 (d) 20

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