App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 895 · 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: “track the order” or “add it to the cart”? (a) add it to the cart (b) track the order
2. 2.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
   1. open “Friend list”
   2. tap the Lessons tab
   3. open “Help page”
   4. tap the Me tab
   5. open “Edit photo”
   How many times must you tap Back to reach the main screen of this tab?
3. 3.🌗 Is dark blue on white easy or hard to read on a button? (a) easy to read (b) hard to read
4. 4.True or false: a final design is a quick sketch. (a) True (b) False
5. 5.Which colour pair is hard to read? (a) yellow on white (b) black on yellow (c) white on black (d) black on pale grey
6. 6.✏️ Is this true of a wireframe or of a final design: has no real colours? (a) a wireframe (b) a final design
7. 7.💾 In most code, the first item of a list is at position ___. (a) 2 (b) 1 (c) 10 (d) 0
8. 8.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
   Back button: 40 px tall
   Send button: 36 px tall
   Cancel button: 32 px tall
9. 9.🔢 In a food-order flow, which comes first: “track the order” or “pay for the order”? (a) track the order (b) pay for the order
10. 10.🧭 Which part of navigation opens a list of pages? (a) the back button (b) a menu button (c) a tab bar
11. 11.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Menu → Pay → Address → Pens → Confirm → Item
    Design B: Home → Item → Search (a) Design B (b) Design A
12. 12.🔢 In a quiz-app flow, which comes FIRST? (a) see the final score (b) pick an answer (c) tap “Start quiz” (d) read a question
13. 13.Which of these makes the app harder to use? (a) labels on every icon (b) tiny tap areas (c) big touch targets (d) strong colour contrast
14. 14.💾 What does this code show? (Positions start at 0.)
    let songs = ["Monsoon", "Rain", "Kites"];
    show(songs[0]); (a) Kites (b) Monsoon (c) Rain
15. 15.Which of these is about UI (the look)? (a) how easy sign-up is (b) how many taps it takes (c) whether users get lost (d) the theme colours
16. 16.🔢 In a sign-up flow, what comes right after “enter the code sent”? (a) tap “Sign up” (b) type name and email (c) see the home screen (d) open the app
17. 17.🔢 In a sign-up flow, what comes right after “type name and email”? (a) make a password (b) tap “Sign up” (c) enter the code sent (d) open the app
18. 18.🔢 In a food-order flow, what comes right after “check the cart”? (a) pick a dish (b) add it to the cart (c) pay for the order (d) open the menu
19. 19.✏️ What is the easiest way to draw a first wireframe? (a) a phone case (b) pencil and paper (c) a 3D printer (d) a microphone
20. 20.🌗 Is red on green easy or hard to read on a button? (a) hard to read (b) easy to read
21. 21.🔢 In a sign-up flow, which comes FIRST? (a) make a password (b) tap “Sign up” (c) open the app (d) type name and email
22. 22.💾 pop() takes off the last item. What does this code show?
    let songs = ["Kites", "Monsoon", "Rain", "Ocean"];
    songs.pop();
    show(songs[songs.length - 1]); (a) Monsoon (b) Ocean (c) Rain (d) Kites
23. 23.🔍 Which is the odd one out? (a) strong colour contrast (b) tiny tap areas (c) icons with no labels (d) fast-flashing lights
24. 24.Which of these is true of a final design? (a) uses plain grey boxes (b) is a quick sketch (c) shows where things go (d) looks like the real app
25. 25.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Score card”
    2. open “Badges”
    3. tap the Settings tab
    Which screen are you on now? (a) Badges (b) Score card (c) Feed (d) Settings
26. 26.🔘 Is this good or poor button design: space between buttons? (a) poor design (b) good design
27. 27.✏️ A box with a cross in a wireframe usually means ___. (a) delete this (b) an error (c) a closed app (d) a picture goes here
28. 28.🎨 Who should you test the UX with? (a) real users (b) nobody (c) the app icon (d) only yourself
29. 29.💾 What number does this code show?
    let friends = ["Meera", "Riya", "Aman", "Kabir"];
    friends.push("Arjun");
    show(friends.length);
30. 30.Which colour pair is easy to read? (a) pale pink on white (b) yellow on white (c) light grey on white (d) white on dark green
31. 31.True or false: a wireframe is a quick sketch. (a) False (b) True
32. 32.True or false: a class leaderboard fits saving on the phone. (a) True (b) False
33. 33.🧭 Where is a tab bar usually placed in a phone app? (a) in the middle (b) inside a button (c) nowhere (d) at the bottom
34. 34.💾 What number does this code show?
    let coins = 7;
    coins = coins - 3;
    coins = coins + 2;
    show(coins);
35. 35.True or false: how many taps it takes is about UI (the look). (a) True (b) False
36. 36.💾 What is a variable? (a) a phone setting (b) a type of screen (c) a named box for a value (d) a picture
37. 37.🔢 In a food-order flow, which comes FIRST? (a) open the menu (b) track the order (c) pick a dish (d) pay for the order
38. 38.🔀 What is a user flow? (a) a colour theme (b) the path through screens (c) a charging cable (d) a type of font
39. 39.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Video”
    2. tap Back
    3. tap the Chat tab
    How many times must you tap Back to reach the main screen of this tab?
40. 40.💾 What number does this code show?
    let friends = ["Riya", "Zoya"];
    friends.push("Aman");
    friends.push("Meera");
    show(friends.length);

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