App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 541 · 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.♿ What should every icon-only button have for screen readers? (a) a text label (b) a long animation (c) a sound (d) a bright colour
2. 2.Which of these is true of a final design? (a) looks like the real app (b) shows where things go (c) is a quick sketch (d) uses plain grey boxes
3. 3.Which colour pair is easy to read? (a) red on green (b) light grey on white (c) white on dark green (d) yellow on white
4. 4.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Start button: 40 px tall
   Help button: 44 px tall
   Save button: 44 px tall
5. 5.Which of these is true of a wireframe? (a) shows where things go (b) shows the real fonts (c) has the real colours (d) looks like the real app
6. 6.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Menu: 26 px
   Body text: 17 px
   Hint: 11 px (a) Hint (b) Body text (c) Menu
7. 7.True or false: a shared to-do list fits saving on the phone. (a) True (b) False
8. 8.💾 Where should the app save the sound on/off setting: on the phone or in the cloud? (a) in the cloud (b) on the phone
9. 9.Which of these is true of a final design? (a) has no real colours (b) shows the real fonts (c) shows where things go (d) uses plain grey boxes
10. 10.🌗 Is pale pink on white easy or hard to read on a button? (a) easy to read (b) hard to read
11. 11.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. tap the Lessons tab
    2. open “Edit photo”
    3. tap the Me tab
    4. open “Video”
    Which screen are you on now? (a) Edit photo (b) Lessons (c) Quiz (d) Video
12. 12.🔢 In a food-order flow, which comes first: “check the cart” or “track the order”? (a) check the cart (b) track the order
13. 13.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Body text: 20 px
    Footer: 13 px
    Title: 23 px (a) Body text (b) Footer (c) Title
14. 14.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Menu → Results
    Design B: Home → Cart → Search → Pens
15. 15.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a wireframe (b) a final design
16. 16.Which of these makes the app harder to use? (a) labels on every icon (b) text that can grow (c) fast-flashing lights (d) strong colour contrast
17. 17.Which of these is about UX (the experience)? (a) the font size (b) the icon shapes (c) the button colours (d) how users feel after
18. 18.🔢 In a food-order flow, which comes FIRST? (a) check the cart (b) pick a dish (c) open the menu (d) add it to the cart
19. 19.✏️ What is a wireframe? (a) a type of password (b) a simple screen sketch (c) a charging cable (d) the finished app
20. 20.🔢 In a food-order flow, which comes first: “pay for the order” or “check the cart”? (a) pay for the order (b) check the cart
21. 21.🔢 In a photo-post flow, which comes first: “open the camera screen” or “post the photo”? (a) post the photo (b) open the camera screen
22. 22.Which of these is true of a tab bar? (a) sits at the bottom (b) opens a list of pages (c) hides extra links (d) undoes one move
23. 23.Which colour pair is hard to read? (a) white on dark green (b) black on yellow (c) white on black (d) dark blue on black
24. 24.💾 What does this code show? (Positions start at 0.)
    let notes = ["Hindi", "Science", "Sports", "Art"];
    show(notes[1]); (a) Art (b) Science (c) Hindi (d) Sports
25. 25.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Home tab
    2. open “Friend list”
    3. open “Badges”
    4. open “Friend list”
    How many times must you tap Back to reach the main screen of this tab?
26. 26.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Menu → Pay → Size → Offers → Item → Pens
    Design B: Home → Search → Pens → Shop
27. 27.🔢 In a food-order flow, what comes right after “open the menu”? (a) pay for the order (b) add it to the cart (c) track the order (d) pick a dish
28. 28.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. tap the Profile tab
    2. open “Map”
    3. tap Back
    4. open “Edit photo”
    5. open “Map”
    Which screen are you on now? (a) Edit photo (b) Home (c) Search (d) Map
29. 29.True or false: space between buttons is good button design. (a) False (b) True
30. 30.🔀 What is a user flow? (a) a charging cable (b) a colour theme (c) a type of font (d) the path through screens
31. 31.True or false: a wireframe is a quick sketch. (a) True (b) False
32. 32.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Map”
    2. open “Score card”
    3. open “Map”
    4. open “Edit photo”
    Which screen are you on now? (a) Lessons (b) Edit photo (c) Map (d) Score card
33. 33.💾 What number does this code show?
    let points = 3;
    points = points - 2;
    points = points + 3;
    show(points);
34. 34.💾 pop() takes off the last item. What does this code show?
    let friends = ["Meera", "Aman", "Riya", "Zoya", "Arjun"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Aman (b) Meera (c) Zoya (d) Riya
35. 35.🧭 Which part of navigation shows 3 to 5 icons? (a) a menu button (b) the back button (c) a tab bar
36. 36.Which of these is true of a menu button? (a) opens a list of pages (b) switches main sections (c) undoes one move (d) goes to the last screen
37. 37.🧭 Which part of navigation undoes one move? (a) a tab bar (b) the back button (c) a menu button
38. 38.True or false: “tiny tap areas” makes the app harder to use. (a) False (b) True
39. 39.💾 Data saved only on the phone is lost when ___. (a) the screen turns off (b) the app is closed (c) you send a message (d) the phone is lost
40. 40.✏️ Why draw a wireframe before coding? (a) it saves data (b) it runs the app (c) it adds colours (d) changes are quick

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