App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 817 · 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 most code, the first item of a list is at position ___. (a) 1 (b) 10 (c) 0 (d) 2
2. 2.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
3. 3.Which of these helps everyone use the app? (a) sudden loud sounds (b) fast-flashing lights (c) icons with no labels (d) big touch targets
4. 4.✏️ Is this true of a wireframe or of a final design: uses plain grey boxes? (a) a wireframe (b) a final design
5. 5.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
   Design A: Home → Results → Size → Pens
   Design B: Home → Shop → Address → Item → Search → Pay
6. 6.🔀 In a good flow, each screen should lead to ___. (a) the same screen (b) a dead end (c) a clear next step (d) a random page
7. 7.💾 What number does this code show?
   let lives = 6;
   lives = lives - 4;
   lives = lives + 1;
   show(lives);
8. 8.🧭 Which part of navigation sits at the bottom? (a) a tab bar (b) the back button (c) a menu button
9. 9.🔢 In a quiz-app flow, which comes first: “see if it is right” or “tap “Start quiz””? (a) see if it is right (b) tap “Start quiz”
10. 10.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Menu → Address → Shop → Item → Size → Search
    Design B: Home → Cart → Search → Item
11. 11.True or false: how easy sign-up is is about UX (the experience). (a) True (b) False
12. 12.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
13. 13.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Shop → Item → Search → Menu → Confirm
    Design B: Home → Results → Cart → Address
14. 14.🔢 In a food-order flow, which comes LAST? (a) pick a dish (b) check the cart (c) track the order (d) pay for the order
15. 15.🔘 Our rule: buttons are at least 48 px tall. The Save button is 32 px tall. How many px taller must it be?
16. 16.Which colour pair is easy to read? (a) light grey on white (b) pale pink on white (c) red on green (d) white on dark green
17. 17.🔢 In a food-order flow, which comes first: “pay for the order” or “track the order”? (a) pay for the order (b) track the order
18. 18.💾 What number does this code show?
    let stars = 3;
    stars = stars - 3;
    stars = stars + 5;
    show(stars);
19. 19.🌗 Is pale pink on white easy or hard to read on a button? (a) hard to read (b) easy to read
20. 20.🔢 In a food-order flow, which comes first: “pick a dish” or “add it to the cart”? (a) add it to the cart (b) pick a dish
21. 21.🔢 In a quiz-app flow, what comes right after “pick an answer”? (a) read a question (b) see if it is right (c) see the final score (d) tap “Start quiz”
22. 22.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap Back
    3. tap the Home tab
    4. open “Match report”
    5. open “Help page”
    Which screen are you on now? (a) Home (b) Search (c) Match report (d) Help page
23. 23.🧭 About how many tabs suit a tab bar best? (a) 10 to 12 (b) 1 (c) 3 to 5 (d) 20
24. 24.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Start button: 56 px tall
    Cancel button: 32 px tall
    Help button: 40 px tall
25. 25.🧭 Which part of navigation switches main sections? (a) a menu button (b) the back button (c) a tab bar
26. 26.🎨 Fewer taps to finish a task usually means ___. (a) a bigger app (b) more colours (c) worse UX (d) better UX
27. 27.💾 What number does this code show?
    let notes = ["Hindi", "Art", "Science"];
    notes.push("Music");
    notes.push("Sports");
    show(notes.length);
28. 28.🌗 Is light grey on white easy or hard to read on a button? (a) easy to read (b) hard to read
29. 29.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Menu → Search → Shop
    Design B: Home → Size → Search → Menu → Results → Cart → Confirm
30. 30.Which of these makes the app harder to use? (a) labels on every icon (b) text that can grow (c) strong colour contrast (d) sudden loud sounds
31. 31.🖼️ In this wireframe (top to bottom), what is right below the search box?
    [ Save button ]
    [ search box ]
    [ big picture ]
    [ list of items ]
    [ menu icon ]
    [ Add button ] (a) big picture (b) menu icon (c) list of items (d) Add button
32. 32.🔢 In a sign-up flow, which comes first: “open the app” or “see the home screen”? (a) see the home screen (b) open the app
33. 33.🔀 What is a user flow? (a) a colour theme (b) the path through screens (c) a type of font (d) a charging cable
34. 34.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Pay → Item → Size
    Design B: Home → Confirm → Address
35. 35.🧭 Tapping a tab usually takes you to ___. (a) a random page (b) the last app used (c) that tab’s main screen (d) the phone settings
36. 36.💾 Which works with no internet at all? (a) a cloud backup (b) a shared chat (c) a cloud leaderboard (d) data saved on the phone
37. 37.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap Back
    3. open “Edit photo”
    4. open “Map”
    5. open “Edit photo”
    Which screen are you on now? (a) Map (b) Home (c) Help page (d) Edit photo
38. 38.True or false: “labels on every icon” helps everyone use the app. (a) False (b) True
39. 39.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Pay → Shop
    Design B: Home → Confirm → Menu → Shop → Pens → Item → Offers
40. 40.💾 Data saved only on the phone is lost when ___. (a) the app is closed (b) you send a message (c) the phone is lost (d) the screen turns off

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