App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 281 · 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.♿ Why add captions to videos? (a) so anyone can follow (b) to add colour (c) to slow them down (d) to hide the sound
2. 2.True or false: the button colours is about UX (the experience). (a) False (b) True
3. 3.🔢 In a food-order flow, which comes first: “open the menu” or “track the order”? (a) track the order (b) open the menu
4. 4.🔢 In a food-order flow, what comes right after “check the cart”? (a) track the order (b) open the menu (c) add it to the cart (d) pay for the order
5. 5.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a wireframe (b) a final design
6. 6.🔍 Which is the odd one out? (a) strong colour contrast (b) sudden loud sounds (c) icons with no labels (d) tiny tap areas
7. 7.🖼️ In this wireframe (top to bottom), what is right below the Save button?
   [ Add button ]
   [ search box ]
   [ Save button ]
   [ filter buttons ]
   [ title text ] (a) title text (b) search box (c) filter buttons (d) Add button
8. 8.🔍 Which is the odd one out? (a) the theme colours (b) how many taps it takes (c) the font size (d) the icon shapes
9. 9.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Size → Offers → Pay
   Design B: Home → Pay → Confirm → Pens → Cart → Size → Search
10. 10.Which of these makes the app harder to use? (a) big touch targets (b) colour as the only clue (c) labels on every icon (d) text that can grow
11. 11.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 10 px
    Body text: 16 px
    Menu: 15 px
    Footer: 12 px
    Title: 22 px
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 26 px
    Title: 23 px
    Body text: 11 px (a) Hint (b) Body text (c) Title
13. 13.True or false: photos on two devices fits saving on the phone. (a) False (b) True
14. 14.💾 In most code, the first item of a list is at position ___. (a) 0 (b) 2 (c) 10 (d) 1
15. 15.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Search tab
    2. tap the Search tab
    3. open “Map”
    How many times must you tap Back to reach the main screen of this tab?
16. 16.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pens → Shop
    Design B: Home → Address → Pens → Size
17. 17.True or false: “labels on every icon” makes the app harder to use. (a) False (b) True
18. 18.Which of these is about UI (the look)? (a) how fast a task is done (b) whether users get lost (c) the icon shapes (d) how easy sign-up is
19. 19.🌗 Is dark blue on white easy or hard to read on a button? (a) easy to read (b) hard to read
20. 20.✏️ Is this true of a wireframe or of a final design: uses the final pictures? (a) a wireframe (b) a final design
21. 21.🧭 About how many tabs suit a tab bar best? (a) 1 (b) 3 to 5 (c) 20 (d) 10 to 12
22. 22.True or false: a wireframe uses plain grey boxes. (a) False (b) True
23. 23.🔀 A screen with no way forward or back is called a ___. (a) shortcut (b) tab bar (c) home screen (d) dead end
24. 24.✏️ Is this true of a wireframe or of a final design: shows the real fonts? (a) a wireframe (b) a final design
25. 25.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Pens → Menu
    Design B: Home → Cart → Results → Menu (a) Design A (b) Design B
26. 26.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. open “Match report”
    3. tap Back
    Which screen are you on now? (a) Settings (b) Match report (c) Chat (d) Feed
27. 27.🎨 Is this about UI or UX: the theme colours? (a) UX (b) UI
28. 28.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Search → Item → Address
    Design B: Home → Pay → Item (a) Design B (b) Design A
29. 29.🧭 Why should every screen show where you are? (a) so users do not get lost (b) to hide the menu (c) to use more battery (d) to look busy
30. 30.Which colour pair is hard to read? (a) pale pink on white (b) black on yellow (c) dark blue on white (d) black on pale grey
31. 31.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pay → Results → Size → Search
    Design B: Home → Cart → Menu → Pens
32. 32.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 24 px
    Footer: 16 px
    Menu: 18 px
    Title: 19 px
    Caption: 17 px
33. 33.🖼️ In this wireframe (top to bottom), what is right above the menu icon?
    [ list of items ]
    [ search box ]
    [ menu icon ]
    [ big picture ] (a) list of items (b) big picture (c) search box
34. 34.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) makes text tiny (d) takes photos
35. 35.🔀 What is a user flow? (a) a colour theme (b) a type of font (c) the path through screens (d) a charging cable
36. 36.🔢 In a photo-post flow, what comes right after “take the photo”? (a) write a caption (b) open the camera screen (c) post the photo (d) add a filter
37. 37.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Done button: 72 px tall
    Help button: 68 px tall
    Save button: 32 px tall
    Next button: 64 px tall (a) Save (b) Help (c) Done (d) Next
38. 38.True or false: a wireframe shows the real fonts. (a) False (b) True
39. 39.🔀 Why plan the user flow before building? (a) to skip testing (b) to add more taps (c) to hide the buttons (d) so each step is clear
40. 40.🎨 Fewer taps to finish a task usually means ___. (a) more colours (b) worse UX (c) a bigger app (d) better UX

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