App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 320 · 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, which comes first: “check the cart” or “pick a dish”? (a) check the cart (b) pick a dish
2. 2.🔢 In a food-order flow, which comes first: “add it to the cart” or “track the order”? (a) track the order (b) add it to the cart
3. 3.Which of these is true of a menu button? (a) shows 3 to 5 icons (b) switches main sections (c) undoes one move (d) hides extra links
4. 4.Which colour pair is hard to read? (a) dark blue on white (b) black on yellow (c) black on pale grey (d) dark blue on black
5. 5.🔘 Is this good or poor button design: a tiny 20 px button? (a) good design (b) poor design
6. 6.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
   1. tap the Chat tab
   2. tap the Feed tab
   3. open “Map”
   4. tap Back
   Which screen are you on now? (a) Chat (b) Map (c) Feed (d) Settings
7. 7.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Score card”
   2. tap the Profile tab
   3. tap the Home tab
   How many times must you tap Back to reach the main screen of this tab?
8. 8.Which of these helps everyone use the app? (a) captions on videos (b) tiny tap areas (c) fast-flashing lights (d) icons with no labels
9. 9.♿ Does this help everyone, or make the app harder to use: text that can grow? (a) makes it harder (b) helps everyone
10. 10.💾 pop() takes off the last item. What does this code show?
    let friends = ["Meera", "Arjun", "Riya", "Kabir", "Aman"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Kabir (b) Arjun (c) Meera (d) Riya
11. 11.🔘 Is this good or poor button design: buttons almost touching? (a) good design (b) poor design
12. 12.🔢 In a sign-up flow, which comes LAST? (a) open the app (b) type name and email (c) make a password (d) see the home screen
13. 13.🔢 In a food-order flow, which comes first: “pick a dish” or “open the menu”? (a) pick a dish (b) open the menu
14. 14.True or false: a big, easy tap area is good button design. (a) False (b) True
15. 15.🎨 Fewer taps to finish a task usually means ___. (a) a bigger app (b) worse UX (c) better UX (d) more colours
16. 16.♿ A screen has 7 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
17. 17.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a final design (b) a wireframe
18. 18.🔍 Which is the odd one out? (a) icons with no labels (b) tiny tap areas (c) captions on videos (d) fast-flashing lights
19. 19.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Match report”
    3. open “Video”
    Which screen are you on now? (a) Video (b) Chat (c) Feed (d) Match report
20. 20.🔀 Why plan the user flow before building? (a) so each step is clear (b) to hide the buttons (c) to skip testing (d) to add more taps
21. 21.Which of these is true of a wireframe? (a) uses plain grey boxes (b) has the real colours (c) shows the real fonts (d) uses the final pictures
22. 22.True or false: the sound on/off setting fits saving on the phone. (a) False (b) True
23. 23.💾 Where should the app save the sound on/off setting: on the phone or in the cloud? (a) on the phone (b) in the cloud
24. 24.✏️ What is the easiest way to draw a first wireframe? (a) a microphone (b) a phone case (c) pencil and paper (d) a 3D printer
25. 25.🔢 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
26. 26.🔢 In a photo-post flow, which comes LAST? (a) post the photo (b) write a caption (c) add a filter (d) take the photo
27. 27.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a final design (b) a wireframe
28. 28.Which of these fits saving on the phone? (a) a shared to-do list (b) your last game level (c) a class leaderboard (d) chat messages to friends
29. 29.🔢 In a quiz-app flow, what comes right after “read a question”? (a) tap “Start quiz” (b) see the final score (c) see if it is right (d) pick an answer
30. 30.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Shop → Menu → Pens → Size
    Design B: Home → Address → Pay → Size → Search → Item
31. 31.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a wireframe (b) a final design
32. 32.True or false: a clear word like Save is good button design. (a) False (b) True
33. 33.♿ A screen has 6 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
34. 34.🔢 In a sign-up flow, what comes right after “tap “Sign up””? (a) type name and email (b) make a password (c) open the app (d) see the home screen
35. 35.✏️ Why draw a wireframe before coding? (a) changes are quick (b) it saves data (c) it adds colours (d) it runs the app
36. 36.🎨 Is this about UI or UX: the screen layout? (a) UX (b) UI
37. 37.♿ Does this help everyone, or make the app harder to use: fast-flashing lights? (a) makes it harder (b) helps everyone
38. 38.💾 Where should the app save photos on two devices: on the phone or in the cloud? (a) in the cloud (b) on the phone
39. 39.🔢 In a quiz-app flow, what comes right after “see if it is right”? (a) read a question (b) tap “Start quiz” (c) see the final score (d) pick an answer
40. 40.💾 What number does this code show?
    let score = 6;
    score = score - 1;
    score = score + 3;
    show(score);

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