App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 19 · 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.True or false: chat messages to friends fits saving on the phone. (a) True (b) False
2. 2.True or false: a wireframe is a quick sketch. (a) False (b) True
3. 3.True or false: a final design shows where things go. (a) False (b) True
4. 4.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Search → Results → Pay → Menu
   Design B: Home → Address → Search → Size (a) Design B (b) Design A
5. 5.🔢 In a quiz-app flow, what comes right after “see if it is right”? (a) tap “Start quiz” (b) pick an answer (c) read a question (d) see the final score
6. 6.🔘 Is this good or poor button design: a clear word like Save? (a) good design (b) poor design
7. 7.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. tap the Quiz tab
   2. open “Score card”
   3. tap Back
   How many times must you tap Back to reach the main screen of this tab?
8. 8.Which of these is true of a wireframe? (a) uses the final pictures (b) shows the real fonts (c) shows where things go (d) looks like the real app
9. 9.True or false: “fast-flashing lights” makes the app harder to use. (a) True (b) False
10. 10.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
11. 11.🧭 Tapping a tab usually takes you to ___. (a) the phone settings (b) the last app used (c) that tab’s main screen (d) a random page
12. 12.💾 What number does this code show?
    let songs = ["Sunrise", "Monsoon"];
    songs.push("Kites");
    songs.push("Stars");
    show(songs.length);
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 19 px
    Footer: 27 px
    Menu: 11 px
    Hint: 25 px (a) Label (b) Hint (c) Menu (d) Footer
14. 14.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a wireframe (b) a final design
15. 15.🔢 In a quiz-app flow, what comes right after “read a question”? (a) see if it is right (b) tap “Start quiz” (c) see the final score (d) pick an answer
16. 16.Which of these helps everyone use the app? (a) big touch targets (b) colour as the only clue (c) icons with no labels (d) fast-flashing lights
17. 17.Which of these is true of a menu button? (a) goes to the last screen (b) sits at the bottom (c) switches main sections (d) opens a list of pages
18. 18.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pay → Results → Item → Confirm → Search → Address
    Design B: Home → Results → Menu → Cart → Address (a) Design A (b) Design B
19. 19.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) makes text tiny (d) takes photos
20. 20.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Shop → Pay → Results → Search → Offers → Pens
    Design B: Home → Address → Size → Search → Offers → Menu
21. 21.True or false: a final design uses plain grey boxes. (a) False (b) True
22. 22.🖼️ How many parts (boxes) does this wireframe have?
    [ Save button ]
    [ tab bar ]
    [ Add button ]
    [ top bar ]
23. 23.Which colour pair is easy to read? (a) dark blue on white (b) red on green (c) pale pink on white (d) yellow on white
24. 24.🔘 Our rule: buttons are at least 48 px tall. The Send button is 32 px tall. How many px taller must it be?
25. 25.🧭 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
    4. open “Map”
    Which screen are you on now? (a) Home (b) Search (c) Video (d) Map
26. 26.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Item → Results → Pens → Shop → Address
    Design B: Home → Shop → Offers → Search → Menu (a) Design A (b) Design B
27. 27.True or false: buttons almost touching is good button design. (a) True (b) False
28. 28.🔘 Is this good or poor button design: buttons almost touching? (a) good design (b) poor design
29. 29.Which of these fits saving in the cloud? (a) the sound on/off setting (b) notes to read offline (c) a draft you are typing (d) photos on two devices
30. 30.True or false: a wireframe shows the real fonts. (a) True (b) False
31. 31.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Search → Offers → Pens → Shop
    Design B: Home → Address → Size → Pay
32. 32.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Offers → Menu
    Design B: Home → Offers → Shop → Results → Size (a) Design B (b) Design A
33. 33.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ Save button ]
    [ big picture ]
    [ top bar ]
    [ filter buttons ] (a) big picture (b) top bar (c) filter buttons (d) Save button
34. 34.Which of these makes the app harder to use? (a) text that can grow (b) captions on videos (c) big touch targets (d) colour as the only clue
35. 35.🔢 In a food-order flow, which comes first: “open the menu” or “add it to the cart”? (a) open the menu (b) add it to the cart
36. 36.True or false: a draft you are typing fits saving in the cloud. (a) True (b) False
37. 37.🔢 In a photo-post flow, which comes first: “write a caption” or “take the photo”? (a) write a caption (b) take the photo
38. 38.🔢 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”
39. 39.Which of these is true of a final design? (a) has no real colours (b) is a quick sketch (c) shows the real fonts (d) uses plain grey boxes
40. 40.🎨 Who should you test the UX with? (a) real users (b) nobody (c) only yourself (d) the app icon

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