App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 815 · 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.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Size → Item
   Design B: Home → Shop → Confirm → Offers → Pay → Cart → Search
2. 2.🔢 In a food-order flow, which comes LAST? (a) track the order (b) add it to the cart (c) check the cart (d) pay for the order
3. 3.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Score card”
   2. open “Match report”
   3. tap Back
   4. open “Edit photo”
   Which screen are you on now? (a) Score card (b) Home (c) Edit photo (d) Match report
4. 4.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Caption: 22 px
   Body text: 10 px
   Footer: 16 px
5. 5.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
   Design A: Home → Pens → Pay → Cart
   Design B: Home → Results → Address → Confirm → Item → Shop → Menu (a) Design B (b) Design A
6. 6.💾 pop() takes off the last item. What does this code show?
   let songs = ["Sunrise", "Monsoon", "Ocean", "Kites"];
   songs.pop();
   show(songs[songs.length - 1]); (a) Sunrise (b) Monsoon (c) Kites (d) Ocean
7. 7.True or false: a wireframe looks like the real app. (a) False (b) True
8. 8.💾 What number does this code show?
   let coins = 9;
   coins = coins - 9;
   coins = coins + 2;
   show(coins);
9. 9.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Done button: 56 px tall
   Send button: 32 px tall
   Cancel button: 52 px tall
10. 10.🎨 A beautiful app that confuses everyone has ___. (a) good UX but poor UI (b) good UI but poor UX (c) no UI at all (d) perfect UX
11. 11.Which of these fits saving in the cloud? (a) photos on two devices (b) the sound on/off setting (c) notes to read offline (d) a draft you are typing
12. 12.Which of these is about UX (the experience)? (a) the screen layout (b) the button colours (c) the theme colours (d) how easy sign-up is
13. 13.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Menu → Item → Shop → Confirm → Pay
    Design B: Home → Item → Cart → Address → Shop → Menu → Pens
14. 14.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a final design (b) a wireframe
15. 15.💾 pop() takes off the last item. What does this code show?
    let friends = ["Zoya", "Kabir", "Riya", "Arjun", "Meera"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Arjun (b) Kabir (c) Riya (d) Zoya
16. 16.🔀 Why plan the user flow before building? (a) to skip testing (b) so each step is clear (c) to hide the buttons (d) to add more taps
17. 17.True or false: space between buttons is good button design. (a) True (b) False
18. 18.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. tap Back
    3. open “Badges”
    4. tap Back
    How many times must you tap Back to reach the main screen of this tab?
19. 19.🔍 Which is the odd one out? (a) the font size (b) the theme colours (c) whether users get lost (d) the icon shapes
20. 20.🧭 What does the back button usually do? (a) opens settings (b) goes to the last screen (c) deletes the page (d) closes all apps
21. 21.✏️ Is this true of a wireframe or of a final design: uses the final pictures? (a) a wireframe (b) a final design
22. 22.True or false: a final design uses the final pictures. (a) False (b) True
23. 23.True or false: a big, easy tap area is poor button design. (a) False (b) True
24. 24.Which of these is true of a wireframe? (a) shows where things go (b) looks like the real app (c) shows the real fonts (d) has the real colours
25. 25.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ big picture ]
    [ filter buttons ]
    [ tab bar ]
    [ search box ]
    [ menu icon ]
    [ Add button ] (a) Add button (b) tab bar (c) big picture (d) filter buttons
26. 26.💾 What number does this code show?
    let lives = 4;
    lives = lives - 2;
    lives = lives + 5;
    show(lives);
27. 27.True or false: “strong colour contrast” makes the app harder to use. (a) False (b) True
28. 28.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
29. 29.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Address → Size
    Design B: Home → Pens → Results → Menu → Confirm (a) Design B (b) Design A
30. 30.🖼️ How many parts (boxes) does this wireframe have?
    [ Add button ]
    [ list of items ]
    [ menu icon ]
    [ Save button ]
    [ big picture ]
31. 31.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap the Home tab
    3. open “Badges”
    4. tap the Home tab
    5. tap the Profile tab
    How many times must you tap Back to reach the main screen of this tab?
32. 32.🔢 In a quiz-app flow, which comes first: “see the final score” or “pick an answer”? (a) pick an answer (b) see the final score
33. 33.True or false: icons with no meaning is poor button design. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) labels on every icon (b) colour as the only clue (c) sudden loud sounds (d) fast-flashing lights
35. 35.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Cancel button: 36 px tall
    Save button: 32 px tall
    Next button: 64 px tall
    Done button: 56 px tall
36. 36.🔢 In a food-order flow, what comes right after “add it to the cart”? (a) open the menu (b) pick a dish (c) pay for the order (d) check the cart
37. 37.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Results → Item
    Design B: Home → Menu → Address → Offers → Shop → Confirm (a) Design A (b) Design B
38. 38.♿ Accessibility means an app works for ___. (a) only experts (b) everyone (c) nobody (d) only the coder
39. 39.🔢 In a photo-post flow, which comes first: “write a caption” or “post the photo”? (a) write a caption (b) post the photo
40. 40.🎨 UX stands for user ___. (a) example (b) experience (c) express (d) extra

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