App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 425 · 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: “fast-flashing lights” makes the app harder to use. (a) False (b) True
2. 2.🔢 In a food-order flow, which comes FIRST? (a) check the cart (b) open the menu (c) pick a dish (d) add it to the cart
3. 3.✏️ Is this true of a wireframe or of a final design: uses the final pictures? (a) a wireframe (b) a final design
4. 4.🔢 In a food-order flow, which comes LAST? (a) check the cart (b) add it to the cart (c) track the order (d) pay for the order
5. 5.True or false: the theme colours is about UI (the look). (a) False (b) True
6. 6.True or false: a final design has the real colours. (a) True (b) False
7. 7.Which of these is true of the back button? (a) hides extra links (b) sits at the bottom (c) opens a list of pages (d) goes to the last screen
8. 8.♿ Accessibility means an app works for ___. (a) only the coder (b) everyone (c) only experts (d) nobody
9. 9.Which of these is true of a menu button? (a) shows 3 to 5 icons (b) sits at the bottom (c) hides extra links (d) undoes one move
10. 10.🔢 In a photo-post flow, which comes first: “post the photo” or “open the camera screen”? (a) post the photo (b) open the camera screen
11. 11.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a wireframe (b) a final design
12. 12.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Next button: 40 px tall
    Done button: 44 px tall
    Cancel button: 64 px tall
    Send button: 32 px tall
13. 13.♿ What should every icon-only button have for screen readers? (a) a text label (b) a long animation (c) a bright colour (d) a sound
14. 14.🔢 In a food-order flow, which comes first: “open the menu” or “check the cart”? (a) open the menu (b) check the cart
15. 15.🖼️ How many parts (boxes) does this wireframe have?
    [ search box ]
    [ tab bar ]
    [ Add button ]
    [ title text ]
16. 16.💾 Where should the app save a class leaderboard: on the phone or in the cloud? (a) on the phone (b) in the cloud
17. 17.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a wireframe (b) a final design
18. 18.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Done button: 32 px tall
    Next button: 32 px tall
    Back button: 64 px tall
19. 19.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Video”
    3. tap the Feed tab
    How many times must you tap Back to reach the main screen of this tab?
20. 20.🔘 Our rule: buttons are at least 48 px tall. The Next button is 36 px tall. How many px taller must it be?
21. 21.🔍 Which is the odd one out? (a) the font size (b) the screen layout (c) how users feel after (d) the icon shapes
22. 22.Which of these is about UX (the experience)? (a) how many taps it takes (b) the theme colours (c) the button colours (d) the screen layout
23. 23.🔘 Is this good or poor button design: grey text on grey? (a) good design (b) poor design
24. 24.🌗 Is white on dark green easy or hard to read on a button? (a) easy to read (b) hard to read
25. 25.🔢 In a sign-up flow, which comes first: “make a password” or “type name and email”? (a) make a password (b) type name and email
26. 26.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. tap Back
    3. open “Help page”
    Which screen are you on now? (a) Quiz (b) Help page (c) Lessons (d) Map
27. 27.✏️ Why draw a wireframe before coding? (a) changes are quick (b) it adds colours (c) it runs the app (d) it saves data
28. 28.🧭 Where is a tab bar usually placed in a phone app? (a) in the middle (b) inside a button (c) at the bottom (d) nowhere
29. 29.🔢 In a sign-up flow, what comes right after “type name and email”? (a) tap “Sign up” (b) make a password (c) open the app (d) see the home screen
30. 30.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 10 px
    Menu: 13 px
    Caption: 16 px
    Footer: 17 px
    Label: 16 px
31. 31.🎨 Is this about UI or UX: how many taps it takes? (a) UI (b) UX
32. 32.🔘 Our rule: buttons are at least 48 px tall. The Start button is 44 px tall. How many px taller must it be?
33. 33.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Start button: 52 px tall
    Save button: 72 px tall
    Cancel button: 56 px tall
    Next button: 28 px tall (a) Save (b) Cancel (c) Next (d) Start
34. 34.🎨 Is this about UI or UX: whether users get lost? (a) UX (b) UI
35. 35.✏️ 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
36. 36.♿ Showing right or wrong only in red and green is a problem for ___. (a) colour-blind users (b) the server (c) the battery (d) fast typists
37. 37.🔢 In a quiz-app flow, which comes LAST? (a) tap “Start quiz” (b) pick an answer (c) read a question (d) see the final score
38. 38.🧭 What does the back button usually do? (a) closes all apps (b) deletes the page (c) opens settings (d) goes to the last screen
39. 39.✏️ What is the easiest way to draw a first wireframe? (a) pencil and paper (b) a 3D printer (c) a microphone (d) a phone case
40. 40.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Item → Address
    Design B: Home → Item → Results → Menu → Offers → Shop (a) Design A (b) Design B

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