App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 887 · 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.🔀 A screen with no way forward or back is called a ___. (a) tab bar (b) shortcut (c) dead end (d) home screen
2. 2.🔢 In a food-order flow, which comes FIRST? (a) add it to the cart (b) pick a dish (c) check the cart (d) open the menu
3. 3.🔢 In a quiz-app flow, which comes first: “read a question” or “see the final score”? (a) see the final score (b) read a question
4. 4.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. tap the Settings tab
   2. open “Help page”
   3. tap the Chat tab
   Which screen are you on now? (a) Help page (b) Feed (c) Chat (d) Settings
5. 5.🌗 Is dark blue on white easy or hard to read on a button? (a) hard to read (b) easy to read
6. 6.Which of these helps everyone use the app? (a) labels on every icon (b) fast-flashing lights (c) icons with no labels (d) tiny tap areas
7. 7.Which colour pair is hard to read? (a) black on pale grey (b) black on yellow (c) red on green (d) dark blue on white
8. 8.🎨 Is this about UI or UX: the icon shapes? (a) UI (b) UX
9. 9.🔀 What is a user flow? (a) a colour theme (b) a charging cable (c) a type of font (d) the path through screens
10. 10.🔍 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 button colours
11. 11.💾 What number does this code show?
    let points = 4;
    points = points - 1;
    points = points + 4;
    show(points);
12. 12.🔢 In a sign-up flow, which comes FIRST? (a) type name and email (b) make a password (c) open the app (d) see the home screen
13. 13.🔢 In a sign-up flow, what comes right after “enter the code sent”? (a) make a password (b) tap “Sign up” (c) type name and email (d) see the home screen
14. 14.♿ Accessibility means an app works for ___. (a) nobody (b) everyone (c) only experts (d) only the coder
15. 15.🎨 UI stands for user ___. (a) idea (b) internet (c) interface (d) input
16. 16.Which colour pair is easy to read? (a) red on green (b) light grey on white (c) dark blue on black (d) white on black
17. 17.True or false: a final design looks like the real app. (a) False (b) True
18. 18.🔢 In a quiz-app flow, which comes FIRST? (a) tap “Start quiz” (b) read a question (c) pick an answer (d) see the final score
19. 19.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a wireframe (b) a final design
20. 20.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Offers → Menu
    Design B: Home → Confirm → Cart → Search → Item
21. 21.💾 What number does this code show?
    let points = 4;
    points = points - 2;
    points = points + 1;
    show(points);
22. 22.🔢 In a sign-up flow, which comes first: “tap “Sign up”” or “see the home screen”? (a) see the home screen (b) tap “Sign up”
23. 23.💾 Where should the app save chat messages to friends: on the phone or in the cloud? (a) on the phone (b) in the cloud
24. 24.True or false: the theme colours is about UI (the look). (a) False (b) True
25. 25.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a final design (b) a wireframe
26. 26.🔢 In a food-order flow, what comes right after “check the cart”? (a) add it to the cart (b) pay for the order (c) track the order (d) open the menu
27. 27.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a wireframe (b) a final design
28. 28.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Help page”
    2. open “Video”
    3. tap Back
    4. tap Back
    5. open “Friend list”
    How many times must you tap Back to reach the main screen of this tab?
29. 29.🔢 In a photo-post flow, which comes first: “open the camera screen” or “write a caption”? (a) write a caption (b) open the camera screen
30. 30.Which of these is true of the back button? (a) sits at the bottom (b) goes to the last screen (c) shows 3 to 5 icons (d) opens a list of pages
31. 31.🔢 In a quiz-app flow, what comes right after “see if it is right”? (a) read a question (b) see the final score (c) tap “Start quiz” (d) pick an answer
32. 32.💾 What does this code show? (Positions start at 0.)
    let notes = ["Hindi", "Art", "Sports", "Maths", "Science"];
    show(notes[4]); (a) Hindi (b) Sports (c) Science (d) Art
33. 33.🧭 Which part of navigation shows 3 to 5 icons? (a) the back button (b) a menu button (c) a tab bar
34. 34.True or false: whether users get lost is about UX (the experience). (a) False (b) True
35. 35.🔢 In a food-order flow, which comes first: “add it to the cart” or “pick a dish”? (a) pick a dish (b) add it to the cart
36. 36.🔢 In a food-order flow, what comes right after “add it to the cart”? (a) open the menu (b) pick a dish (c) check the cart (d) track the order
37. 37.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ Add button ]
    [ list of items ]
    [ big picture ]
    [ tab bar ]
    [ top bar ] (a) Add button (b) big picture (c) list of items (d) top bar
38. 38.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Title: 11 px
    Hint: 11 px
    Footer: 23 px
    Body text: 20 px
39. 39.🔘 Our rule: buttons are at least 48 px tall. Which button is too small?
    Save button: 28 px tall
    Back button: 68 px tall
    Cancel button: 52 px tall (a) Save (b) Cancel (c) Back
40. 40.🔢 In a photo-post flow, which comes FIRST? (a) take the photo (b) add a filter (c) write a caption (d) open the camera screen

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