App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 950 · 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.🔢 In a photo-post flow, which comes LAST? (a) write a caption (b) post the photo (c) take the photo (d) add a filter
2. 2.🧭 Which part of navigation opens a list of pages? (a) a tab bar (b) the back button (c) a menu button
3. 3.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. tap the Profile tab
   2. open “Video”
   3. tap the Search tab
   How many times must you tap Back to reach the main screen of this tab?
4. 4.🖼️ In this wireframe (top to bottom), what is right below the Add button?
   [ big picture ]
   [ Add button ]
   [ search box ]
   [ filter buttons ] (a) filter buttons (b) search box (c) big picture
5. 5.🧭 About how many tabs suit a tab bar best? (a) 1 (b) 20 (c) 3 to 5 (d) 10 to 12
6. 6.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Badges”
   2. open “Edit photo”
   3. tap Back
   4. open “Edit photo”
   5. tap Back
   Which screen are you on now? (a) Badges (b) Lessons (c) Edit photo (d) Quiz
7. 7.🔢 In a food-order flow, what comes right after “check the cart”? (a) pay for the order (b) add it to the cart (c) open the menu (d) pick a dish
8. 8.Which colour pair is hard to read? (a) black on pale grey (b) black on yellow (c) yellow on white (d) white on black
9. 9.🧭 Why should every screen show where you are? (a) to look busy (b) so users do not get lost (c) to use more battery (d) to hide the menu
10. 10.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Pay
    Design B: Home → Shop → Confirm → Pay → Pens → Offers → Size (a) Design B (b) Design A
11. 11.Which of these is true of a tab bar? (a) opens a list of pages (b) switches main sections (c) undoes one move (d) hides extra links
12. 12.🔢 In a quiz-app flow, what comes right after “read a question”? (a) see the final score (b) see if it is right (c) pick an answer (d) tap “Start quiz”
13. 13.🔘 Is this good or poor button design: buttons almost touching? (a) good design (b) poor design
14. 14.Which of these is true of a menu button? (a) opens a list of pages (b) switches main sections (c) shows 3 to 5 icons (d) sits at the bottom
15. 15.Which colour pair is easy to read? (a) white on black (b) dark blue on black (c) pale pink on white (d) yellow on white
16. 16.🔘 Our rule: buttons are at least 48 px tall. The Back button is 44 px tall. How many px taller must it be?
17. 17.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
18. 18.True or false: how users feel after is about UI (the look). (a) True (b) False
19. 19.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Search → Pens → Menu
    Design B: Home → Offers → Item → Pens → Cart
20. 20.Which colour pair is easy to read? (a) red on green (b) dark blue on white (c) dark blue on black (d) pale pink on white
21. 21.🖼️ In this wireframe (top to bottom), what is right above the search box?
    [ filter buttons ]
    [ tab bar ]
    [ search box ]
    [ big picture ]
    [ top bar ] (a) top bar (b) filter buttons (c) big picture (d) tab bar
22. 22.✏️ What is a wireframe? (a) a charging cable (b) the finished app (c) a simple screen sketch (d) a type of password
23. 23.🔢 In a photo-post flow, which comes FIRST? (a) add a filter (b) post the photo (c) take the photo (d) open the camera screen
24. 24.💾 What number does this code show?
    let lives = 6;
    lives = lives - 3;
    lives = lives + 3;
    show(lives);
25. 25.🖼️ In this wireframe (top to bottom), what is right above the Save button?
    [ title text ]
    [ top bar ]
    [ big picture ]
    [ Save button ] (a) title text (b) big picture (c) top bar
26. 26.🔍 Which is the odd one out? (a) labels on every icon (b) captions on videos (c) text that can grow (d) tiny tap areas
27. 27.💾 Which can hold many values in order? (a) a switch (b) a button (c) a list (d) a single number
28. 28.True or false: strong colour contrast is good button design. (a) True (b) False
29. 29.True or false: a clear word like Save is poor button design. (a) True (b) False
30. 30.🧭 Where is a tab bar usually placed in a phone app? (a) nowhere (b) at the bottom (c) inside a button (d) in the middle
31. 31.True or false: your last game level fits saving in the cloud. (a) True (b) False
32. 32.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. open “Badges”
    3. open “Map”
    4. tap the Chat tab
    Which screen are you on now? (a) Video (b) Badges (c) Chat (d) Map
33. 33.💾 What number does this code show?
    let notes = ["Music", "Sports", "Art", "Hindi"];
    notes.push("Maths");
    show(notes.length);
34. 34.🖼️ In this wireframe (top to bottom), what is right above the filter buttons?
    [ search box ]
    [ filter buttons ]
    [ top bar ]
    [ big picture ]
    [ Save button ] (a) Save button (b) big picture (c) search box (d) top bar
35. 35.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 21 px
    Title: 18 px
    Menu: 15 px
    Footer: 10 px
36. 36.💾 What number does this code show?
    let points = 8;
    points = points - 1;
    points = points + 5;
    show(points);
37. 37.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a final design (b) a wireframe
38. 38.🎨 Is this about UI or UX: how many taps it takes? (a) UI (b) UX
39. 39.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a wireframe (b) a final design
40. 40.🔢 In a sign-up flow, which comes LAST? (a) enter the code sent (b) open the app (c) see the home screen (d) make a password

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