App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 686 · 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 → Confirm → Address → Size
   Design B: Home → Menu → Pay
2. 2.💾 What does this code show? (Positions start at 0.)
   let friends = ["Meera", "Aman", "Arjun"];
   show(friends[1]); (a) Aman (b) Meera (c) Arjun
3. 3.True or false: icons with no meaning is poor button design. (a) False (b) True
4. 4.✏️ Is this true of a wireframe or of a final design: is a quick sketch? (a) a wireframe (b) a final design
5. 5.🎨 Is this about UI or UX: the button colours? (a) UX (b) UI
6. 6.Which colour pair is easy to read? (a) pale pink on white (b) yellow on white (c) dark blue on black (d) black on pale grey
7. 7.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
   Body text: 21 px
   Hint: 11 px
   Title: 18 px
   Footer: 14 px
8. 8.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. open “Friend list”
   2. open “Badges”
   3. open “Score card”
   How many times must you tap Back to reach the main screen of this tab?
9. 9.🖼️ How many parts (boxes) does this wireframe have?
   [ top bar ]
   [ big picture ]
   [ tab bar ]
   [ Save button ]
   [ Add button ]
10. 10.🔘 Our rule: buttons are at least 48 px tall. The Save button is 20 px tall. How many px taller must it be?
11. 11.💾 pop() takes off the last item. What does this code show?
    let friends = ["Kabir", "Meera", "Zoya"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Zoya (b) Meera (c) Kabir
12. 12.🔀 Why plan the user flow before building? (a) to add more taps (b) to hide the buttons (c) so each step is clear (d) to skip testing
13. 13.Which of these is true of a wireframe? (a) has no real colours (b) has the real colours (c) uses the final pictures (d) looks like the real app
14. 14.🔍 Which is the odd one out? (a) captions on videos (b) sudden loud sounds (c) tiny tap areas (d) fast-flashing lights
15. 15.🔢 In a quiz-app flow, which comes first: “pick an answer” or “tap “Start quiz””? (a) tap “Start quiz” (b) pick an answer
16. 16.🔘 Is this good or poor button design: a tiny 20 px button? (a) poor design (b) good design
17. 17.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a final design (b) a wireframe
18. 18.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Help button: 48 px tall
    Cancel button: 60 px tall
    Start button: 32 px tall
19. 19.🧭 Where is a tab bar usually placed in a phone app? (a) in the middle (b) at the bottom (c) nowhere (d) inside a button
20. 20.🔍 Which is the odd one out? (a) strong colour contrast (b) captions on videos (c) sudden loud sounds (d) text that can grow
21. 21.🔢 In a sign-up flow, what comes right after “open the app”? (a) type name and email (b) make a password (c) tap “Sign up” (d) see the home screen
22. 22.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a wireframe (b) a final design
23. 23.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. open “Map”
    3. tap the Profile tab
    How many times must you tap Back to reach the main screen of this tab?
24. 24.✏️ Is this true of a wireframe or of a final design: has no real colours? (a) a wireframe (b) a final design
25. 25.Which of these is about UX (the experience)? (a) the screen layout (b) the font size (c) the icon shapes (d) how many taps it takes
26. 26.Which of these fits saving on the phone? (a) a shared to-do list (b) your last game level (c) photos on two devices (d) chat messages to friends
27. 27.Which of these fits saving on the phone? (a) photos on two devices (b) a shared to-do list (c) a class leaderboard (d) the sound on/off setting
28. 28.🖼️ In this wireframe (top to bottom), what is right below the search box?
    [ Save button ]
    [ filter buttons ]
    [ top bar ]
    [ search box ]
    [ list of items ] (a) Save button (b) filter buttons (c) top bar (d) list of items
29. 29.🧭 Which part of navigation sits at the bottom? (a) the back button (b) a tab bar (c) a menu button
30. 30.🎨 Is this about UI or UX: how users feel after? (a) UX (b) UI
31. 31.✏️ What is a wireframe? (a) a charging cable (b) the finished app (c) a simple screen sketch (d) a type of password
32. 32.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Shop → Cart → Address → Confirm
    Design B: Home → Menu → Item → Pens (a) Design A (b) Design B
33. 33.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 56 px tall
    Next button: 64 px tall
    Save button: 36 px tall (a) Next (b) Save (c) Cancel
34. 34.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Confirm → Pay
    Design B: Home → Shop → Cart → Offers → Pay → Item → Pens
35. 35.🔢 In a food-order flow, which comes first: “pay for the order” or “pick a dish”? (a) pay for the order (b) pick a dish
36. 36.💾 pop() takes off the last item. What does this code show?
    let friends = ["Arjun", "Riya", "Meera"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Riya (b) Meera (c) Arjun
37. 37.Which of these is true of a wireframe? (a) has the real colours (b) uses plain grey boxes (c) shows the real fonts (d) uses the final pictures
38. 38.🔢 In a sign-up flow, what comes right after “enter the code sent”? (a) tap “Sign up” (b) see the home screen (c) type name and email (d) make a password
39. 39.🎨 Fewer taps to finish a task usually means ___. (a) a bigger app (b) more colours (c) better UX (d) worse UX
40. 40.True or false: a clear word like Save is good button design. (a) False (b) True

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