App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 67 · 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.💾 Where should the app save the sound on/off setting: on the phone or in the cloud? (a) in the cloud (b) on the phone
2. 2.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Pens → Shop → Search → Menu → Item
   Design B: Home → Offers → Pens
3. 3.🎨 Fewer taps to finish a task usually means ___. (a) better UX (b) more colours (c) a bigger app (d) worse UX
4. 4.🧭 Why should every screen show where you are? (a) to use more battery (b) to look busy (c) to hide the menu (d) so users do not get lost
5. 5.Which colour pair is easy to read? (a) red on green (b) yellow on white (c) white on dark green (d) light grey on white
6. 6.Which of these makes the app harder to use? (a) strong colour contrast (b) sudden loud sounds (c) big touch targets (d) captions on videos
7. 7.🔢 In a photo-post flow, which comes first: “add a filter” or “write a caption”? (a) add a filter (b) write a caption
8. 8.🌗 Is red on green easy or hard to read on a button? (a) easy to read (b) hard to read
9. 9.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a final design (b) a wireframe
10. 10.Which of these is true of a wireframe? (a) looks like the real app (b) has the real colours (c) has no real colours (d) uses the final pictures
11. 11.✏️ What is the easiest way to draw a first wireframe? (a) pencil and paper (b) a 3D printer (c) a phone case (d) a microphone
12. 12.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Friend list”
    3. tap the Feed tab
    How many times must you tap Back to reach the main screen of this tab?
13. 13.🔢 In a quiz-app flow, which comes FIRST? (a) see the final score (b) pick an answer (c) tap “Start quiz” (d) read a question
14. 14.True or false: a wireframe shows where things go. (a) True (b) False
15. 15.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 36 px tall
    Send button: 56 px tall
    Save button: 72 px tall (a) Cancel (b) Save (c) Send
16. 16.True or false: the screen layout is about UX (the experience). (a) False (b) True
17. 17.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Pens → Cart → Pay → Shop → Search
    Design B: Home → Offers → Confirm → Pens → Results → Shop (a) Design A (b) Design B
18. 18.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Match report”
    3. tap Back
    4. open “Edit photo”
    5. tap the Home tab
    Which screen are you on now? (a) Search (b) Match report (c) Edit photo (d) Home
19. 19.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a wireframe (b) a final design
20. 20.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Video”
    2. tap Back
    3. open “Badges”
    4. tap Back
    Which screen are you on now? (a) Search (b) Home (c) Video (d) Badges
21. 21.💾 What number does this code show?
    let notes = ["Maths", "Hindi", "Science", "Music"];
    notes.push("Art");
    show(notes.length);
22. 22.🔢 In a photo-post flow, which comes first: “take the photo” or “open the camera screen”? (a) take the photo (b) open the camera screen
23. 23.True or false: a clear word like Save is poor button design. (a) False (b) True
24. 24.True or false: “icons with no labels” helps everyone use the app. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) whether users get lost (b) how users feel after (c) how easy sign-up is (d) the screen layout
26. 26.🔢 In a food-order flow, what comes right after “check the cart”? (a) pay for the order (b) add it to the cart (c) track the order (d) open the menu
27. 27.True or false: chat messages to friends fits saving on the phone. (a) False (b) True
28. 28.✏️ Is this true of a wireframe or of a final design: shows the real fonts? (a) a wireframe (b) a final design
29. 29.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Edit photo”
    2. tap Back
    3. tap the Feed tab
    How many times must you tap Back to reach the main screen of this tab?
30. 30.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) the server (d) colour-blind users
31. 31.🔍 Which is the odd one out? (a) sudden loud sounds (b) colour as the only clue (c) text that can grow (d) fast-flashing lights
32. 32.Which of these fits saving on the phone? (a) chat messages to friends (b) photos on two devices (c) a draft you are typing (d) a shared to-do list
33. 33.🧭 About how many tabs suit a tab bar best? (a) 10 to 12 (b) 20 (c) 1 (d) 3 to 5
34. 34.✏️ A box with a cross in a wireframe usually means ___. (a) a closed app (b) delete this (c) an error (d) a picture goes here
35. 35.Which of these makes the app harder to use? (a) labels on every icon (b) icons with no labels (c) text that can grow (d) captions on videos
36. 36.♿ What does a screen reader do? (a) takes photos (b) makes text tiny (c) reads the screen aloud (d) plays music
37. 37.🔢 In a photo-post flow, which comes first: “post the photo” or “add a filter”? (a) post the photo (b) add a filter
38. 38.🔢 In a photo-post flow, which comes FIRST? (a) take the photo (b) add a filter (c) write a caption (d) open the camera screen
39. 39.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Offers → Address → Confirm → Cart → Size → Results
    Design B: Home → Item → Search → Address → Results → Size
40. 40.🔢 In a sign-up flow, what comes right after “open the app”? (a) tap “Sign up” (b) make a password (c) type name and email (d) see the home screen

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