App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 651 · 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.🔢 In a food-order flow, what comes right after “check the cart”? (a) add it to the cart (b) pay for the order (c) pick a dish (d) track the order
2. 2.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
   Cancel button: 72 px tall
   Send button: 32 px tall
   Next button: 60 px tall (a) Next (b) Send (c) Cancel
3. 3.🔢 In a food-order flow, which comes FIRST? (a) add it to the cart (b) track the order (c) open the menu (d) pay for the order
4. 4.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Save button: 52 px tall
   Start button: 36 px tall
   Send button: 48 px tall
   Next button: 52 px tall
5. 5.Which of these is true of a wireframe? (a) has the real colours (b) uses plain grey boxes (c) shows the real fonts (d) looks like the real app
6. 6.🔘 Is this good or poor button design: grey text on grey? (a) good design (b) poor design
7. 7.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Cancel button: 40 px tall
   Help button: 32 px tall
   Save button: 36 px tall
8. 8.🔀 In a good flow, each screen should lead to ___. (a) the same screen (b) a dead end (c) a random page (d) a clear next step
9. 9.🧭 What does the back button usually do? (a) deletes the page (b) goes to the last screen (c) opens settings (d) closes all apps
10. 10.🧭 Tapping a tab usually takes you to ___. (a) a random page (b) that tab’s main screen (c) the phone settings (d) the last app used
11. 11.🔍 Which is the odd one out? (a) how users feel after (b) the icon shapes (c) the font size (d) the theme colours
12. 12.🔢 In a photo-post flow, which comes LAST? (a) take the photo (b) open the camera screen (c) add a filter (d) post the photo
13. 13.True or false: the screen layout is about UI (the look). (a) True (b) False
14. 14.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
15. 15.Which of these is about UI (the look)? (a) whether users get lost (b) how fast a task is done (c) the font size (d) how many taps it takes
16. 16.🌗 Is black on yellow easy or hard to read on a button? (a) hard to read (b) easy to read
17. 17.🔢 In a quiz-app flow, which comes first: “see if it is right” or “see the final score”? (a) see the final score (b) see if it is right
18. 18.Which colour pair is easy to read? (a) yellow on white (b) red on green (c) dark blue on black (d) dark blue on white
19. 19.🔘 Is this good or poor button design: a clear word like Save? (a) good design (b) poor design
20. 20.🔢 In a sign-up flow, which comes first: “see the home screen” or “make a password”? (a) see the home screen (b) make a password
21. 21.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Menu: 25 px
    Title: 9 px
    Caption: 22 px (a) Caption (b) Title (c) Menu
22. 22.🖼️ How many parts (boxes) does this wireframe have?
    [ search box ]
    [ Add button ]
    [ list of items ]
    [ big picture ]
23. 23.🔍 Which is the odd one out? (a) labels on every icon (b) icons with no labels (c) text that can grow (d) big touch targets
24. 24.🔢 In a photo-post flow, what comes right after “take the photo”? (a) post the photo (b) write a caption (c) open the camera screen (d) add a filter
25. 25.🎨 A beautiful app that confuses everyone has ___. (a) good UI but poor UX (b) perfect UX (c) no UI at all (d) good UX but poor UI
26. 26.True or false: a draft you are typing fits saving on the phone. (a) False (b) True
27. 27.💾 In most code, the first item of a list is at position ___. (a) 0 (b) 10 (c) 1 (d) 2
28. 28.💾 Which works with no internet at all? (a) a cloud backup (b) a cloud leaderboard (c) data saved on the phone (d) a shared chat
29. 29.♿ Does this help everyone, or make the app harder to use: labels on every icon? (a) makes it harder (b) helps everyone
30. 30.🔘 Our rule: buttons are at least 48 px tall. The Next button is 28 px tall. How many px taller must it be?
31. 31.♿ Showing right or wrong only in red and green is a problem for ___. (a) the server (b) the battery (c) colour-blind users (d) fast typists
32. 32.🔍 Which is the odd one out? (a) how fast a task is done (b) the font size (c) how easy sign-up is (d) how many taps it takes
33. 33.🧭 Which part of navigation switches main sections? (a) the back button (b) a menu button (c) a tab bar
34. 34.True or false: how fast a task is done is about UI (the look). (a) False (b) True
35. 35.💾 Saving data in the cloud lets you ___. (a) skip the internet (b) never need a password (c) use it on any device (d) shrink the app
36. 36.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Search → Address → Menu
    Design B: Home → Pay → Cart → Results → Menu → Offers
37. 37.True or false: a big, easy tap area is poor button design. (a) True (b) False
38. 38.🔀 Why plan the user flow before building? (a) to hide the buttons (b) so each step is clear (c) to add more taps (d) to skip testing
39. 39.💾 Which can hold many values in order? (a) a single number (b) a list (c) a switch (d) a button
40. 40.🎨 Fewer taps to finish a task usually means ___. (a) worse UX (b) a bigger app (c) better UX (d) more colours

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