App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 727 · 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.🎨 Is this about UI or UX: how fast a task is done? (a) UX (b) UI
2. 2.✏️ Is this true of a wireframe or of a final design: has the real colours? (a) a wireframe (b) a final design
3. 3.💾 What does this code show? (Positions start at 0.)
   let friends = ["Kabir", "Meera", "Arjun", "Zoya", "Riya"];
   show(friends[0]); (a) Meera (b) Kabir (c) Arjun (d) Zoya
4. 4.Which of these helps everyone use the app? (a) colour as the only clue (b) tiny tap areas (c) labels on every icon (d) fast-flashing lights
5. 5.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
   1. open “Edit photo”
   2. open “Map”
   3. tap Back
   How many times must you tap Back to reach the main screen of this tab?
6. 6.🔢 In a food-order flow, which comes first: “add it to the cart” or “check the cart”? (a) check the cart (b) add it to the cart
7. 7.🔢 In a sign-up flow, what comes right after “enter the code sent”? (a) open the app (b) tap “Sign up” (c) type name and email (d) see the home screen
8. 8.✏️ What is a wireframe? (a) a charging cable (b) a simple screen sketch (c) a type of password (d) the finished app
9. 9.🖼️ In this wireframe (top to bottom), what is right above the tab bar?
   [ top bar ]
   [ filter buttons ]
   [ Save button ]
   [ tab bar ] (a) filter buttons (b) top bar (c) Save button
10. 10.🔢 In a photo-post flow, what comes right after “open the camera screen”? (a) write a caption (b) add a filter (c) take the photo (d) post the photo
11. 11.♿ A screen has 11 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
12. 12.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. tap the Chat tab
    2. open “Match report”
    3. tap Back
    4. open “Video”
    5. tap the Feed tab
    Which screen are you on now? (a) Match report (b) Feed (c) Video (d) Chat
13. 13.🔢 In a food-order flow, which comes LAST? (a) add it to the cart (b) pay for the order (c) track the order (d) open the menu
14. 14.🧭 Where is a tab bar usually placed in a phone app? (a) nowhere (b) in the middle (c) inside a button (d) at the bottom
15. 15.True or false: a final design is a quick sketch. (a) False (b) True
16. 16.Which of these is true of a wireframe? (a) looks like the real app (b) uses the final pictures (c) shows the real fonts (d) shows where things go
17. 17.🧭 About how many tabs suit a tab bar best? (a) 1 (b) 3 to 5 (c) 20 (d) 10 to 12
18. 18.🖼️ In this wireframe (top to bottom), what is right below the tab bar?
    [ tab bar ]
    [ Save button ]
    [ list of items ]
    [ big picture ] (a) Save button (b) big picture (c) list of items
19. 19.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Confirm → Pay → Search → Address → Results → Pens
    Design B: Home → Menu → Search (a) Design A (b) Design B
20. 20.🔀 What is a user flow? (a) a type of font (b) a charging cable (c) the path through screens (d) a colour theme
21. 21.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
    Help button: 44 px tall
    Done button: 56 px tall
    Cancel button: 32 px tall
22. 22.👆 Two designs for the same task (each arrow is one tap). How many taps does Design A need?
    Design A: Home → Pay → Results
    Design B: Home → Menu → Results → Pens → Offers
23. 23.Which colour pair is easy to read? (a) white on black (b) red on green (c) yellow on white (d) light grey on white
24. 24.👆 Two designs for the same task (each arrow is one tap). How many taps does Design B need?
    Design A: Home → Results → Size → Shop → Search → Item → Pens
    Design B: Home → Pens → Cart → Item → Shop
25. 25.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
    1. open “Help page”
    2. tap the Profile tab
    3. open “Match report”
    How many times must you tap Back to reach the main screen of this tab?
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Hint: 19 px
    Title: 22 px
    Body text: 20 px
27. 27.🔘 Our rule: buttons are at least 48 px tall. The Start button is 40 px tall. How many px taller must it be?
28. 28.🌗 Is dark blue on white easy or hard to read on a button? (a) hard to read (b) easy to read
29. 29.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 26 px
    Footer: 19 px
    Caption: 13 px
    Body text: 21 px (a) Title (b) Caption (c) Footer (d) Body text
30. 30.🎨 Is this about UI or UX: the icon shapes? (a) UX (b) UI
31. 31.🖼️ How many parts (boxes) does this wireframe have?
    [ search box ]
    [ filter buttons ]
    [ tab bar ]
    [ menu icon ]
32. 32.True or false: a final design uses the final pictures. (a) True (b) False
33. 33.💾 In most code, the first item of a list is at position ___. (a) 0 (b) 1 (c) 2 (d) 10
34. 34.✏️ Is this true of a wireframe or of a final design: shows the real fonts? (a) a wireframe (b) a final design
35. 35.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Pens → Menu → Address
    Design B: Home → Offers → Item → Pens → Cart → Pay
36. 36.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Address → Cart → Item → Pay → Size → Offers
    Design B: Home → Offers → Pay
37. 37.🌗 Is black on pale grey easy or hard to read on a button? (a) hard to read (b) easy to read
38. 38.🎨 Is this about UI or UX: the button colours? (a) UX (b) UI
39. 39.Which colour pair is hard to read? (a) yellow on white (b) black on yellow (c) black on pale grey (d) dark blue on white
40. 40.Which of these fits saving on the phone? (a) a shared to-do list (b) photos on two devices (c) chat messages to friends (d) a draft you are typing

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