App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 718 · 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: whether users get lost is about UX (the experience). (a) False (b) True
2. 2.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Caption: 19 px
   Footer: 13 px
   Title: 28 px (a) Footer (b) Title (c) Caption
3. 3.🧭 Which part of navigation sits at the bottom? (a) a tab bar (b) a menu button (c) the back button
4. 4.💾 What is a variable? (a) a named box for a value (b) a type of screen (c) a phone setting (d) a picture
5. 5.🔘 Our rule: buttons are at least 48 px tall. The Start button is 40 px tall. How many px taller must it be?
6. 6.🔢 In a food-order flow, which comes first: “track the order” or “add it to the cart”? (a) track the order (b) add it to the cart
7. 7.True or false: a shared to-do list fits saving on the phone. (a) True (b) False
8. 8.🔢 In a sign-up flow, which comes first: “see the home screen” or “enter the code sent”? (a) see the home screen (b) enter the code sent
9. 9.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Save button: 44 px tall
   Back button: 52 px tall
   Done button: 64 px tall (a) Save (b) Done (c) Back
10. 10.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Start button: 36 px tall
    Cancel button: 32 px tall
    Save button: 56 px tall
    Back button: 44 px tall
11. 11.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Badges”
    2. tap the Profile tab
    3. open “Map”
    4. tap Back
    5. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
12. 12.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
13. 13.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a final design (b) a wireframe
14. 14.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ tab bar ]
    [ search box ]
    [ title text ]
    [ Save button ]
    [ filter buttons ]
    [ list of items ] (a) search box (b) title text (c) Save button (d) list of items
15. 15.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Cart → Results → Pens
    Design B: Home → Cart → Pens → Menu → Offers → Size
16. 16.🔢 In a photo-post flow, what comes right after “take the photo”? (a) add a filter (b) open the camera screen (c) post the photo (d) write a caption
17. 17.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Cart → Address → Menu → Shop → Pens → Item
    Design B: Home → Pay → Cart → Search → Pens → Confirm
18. 18.Which of these is true of a wireframe? (a) shows the real fonts (b) looks like the real app (c) uses the final pictures (d) shows where things go
19. 19.💾 What number does this code show?
    let songs = ["Kites", "Rain"];
    songs.push("Sunrise");
    songs.push("Monsoon");
    show(songs.length);
20. 20.🎨 Is this about UI or UX: how easy sign-up is? (a) UI (b) UX
21. 21.🔍 Which is the odd one out? (a) how fast a task is done (b) how users feel after (c) how easy sign-up is (d) the font size
22. 22.🎨 Is this about UI or UX: the font size? (a) UI (b) UX
23. 23.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pens → Confirm → Search → Address → Results
    Design B: Home → Results → Pens → Search
24. 24.♿ What should every icon-only button have for screen readers? (a) a bright colour (b) a text label (c) a long animation (d) a sound
25. 25.🧭 Why should every screen show where you are? (a) to look busy (b) to hide the menu (c) to use more battery (d) so users do not get lost
26. 26.Which colour pair is easy to read? (a) pale pink on white (b) yellow on white (c) white on dark green (d) red on green
27. 27.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Cancel button: 56 px tall
    Back button: 24 px tall
    Send button: 56 px tall
    Help button: 48 px tall (a) Cancel (b) Send (c) Back (d) Help
28. 28.🔀 A screen with no way forward or back is called a ___. (a) shortcut (b) tab bar (c) home screen (d) dead end
29. 29.True or false: a final design shows where things go. (a) True (b) False
30. 30.🔢 In a quiz-app flow, which comes LAST? (a) see if it is right (b) see the final score (c) read a question (d) tap “Start quiz”
31. 31.🔘 Our rule: buttons are at least 48 px tall. The Help button is 44 px tall. How many px taller must it be?
32. 32.✏️ A box with a cross in a wireframe usually means ___. (a) an error (b) a picture goes here (c) delete this (d) a closed app
33. 33.True or false: a wireframe uses plain grey boxes. (a) True (b) False
34. 34.Which of these helps everyone use the app? (a) tiny tap areas (b) fast-flashing lights (c) strong colour contrast (d) colour as the only clue
35. 35.♿ Showing right or wrong only in red and green is a problem for ___. (a) the battery (b) fast typists (c) colour-blind users (d) the server
36. 36.True or false: icons with no meaning is good button design. (a) True (b) False
37. 37.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Done button: 48 px tall
    Help button: 36 px tall
    Cancel button: 48 px tall
    Send button: 72 px tall (a) Send (b) Help (c) Done (d) Cancel
38. 38.🎨 A beautiful app that confuses everyone has ___. (a) good UI but poor UX (b) good UX but poor UI (c) perfect UX (d) no UI at all
39. 39.Which of these is about UI (the look)? (a) the theme colours (b) how users feel after (c) how fast a task is done (d) how many taps it takes
40. 40.🧭 Which part of navigation shows 3 to 5 icons? (a) a menu button (b) the back button (c) a tab bar

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