App Dev Worksheet: Part 2 Test
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.
NameDateTime takenScore ___ / 40
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1.🖼️ In this wireframe (top to bottom), what is right below the title text?
[ list of items ]
[ title text ]
[ top bar ]
[ Add button ]
[ tab bar ]
[ big picture ] (a) Add button (b) big picture (c) tab bar (d) top bar - 2.✏️ A box with a cross in a wireframe usually means ___. (a) an error (b) a picture goes here (c) a closed app (d) delete this
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3.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
Done button: 52 px tall
Cancel button: 48 px tall
Send button: 52 px tall -
4.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
Design A: Home → Pay → Shop
Design B: Home → Pens → Address → Pay → Search - 5.♿ What does a screen reader do? (a) makes text tiny (b) reads the screen aloud (c) plays music (d) takes photos
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6.🖼️ How many parts (boxes) does this wireframe have?
[ tab bar ]
[ big picture ]
[ Add button ]
[ filter buttons ]
[ menu icon ] -
7.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
Design A: Home → Offers → Size → Pay → Pens
Design B: Home → Cart → Results → Address → Menu → Pens (a) Design A (b) Design B - 8.🔍 Which is the odd one out? (a) the button colours (b) the font size (c) whether users get lost (d) the screen layout
- 9.🔘 Our rule: buttons are at least 48 px tall. The Start button is 20 px tall. How many px taller must it be?
- 10.Which of these helps everyone use the app? (a) sudden loud sounds (b) fast-flashing lights (c) text that can grow (d) tiny tap areas
- 11.🎨 UX stands for user ___. (a) experience (b) extra (c) example (d) express
- 12.♿ Accessibility means an app works for ___. (a) everyone (b) only the coder (c) nobody (d) only experts
- 13.Which of these helps everyone use the app? (a) icons with no labels (b) fast-flashing lights (c) sudden loud sounds (d) strong colour contrast
- 14.🔢 In a sign-up flow, which comes LAST? (a) see the home screen (b) open the app (c) type name and email (d) enter the code sent
- 15.✏️ Is this true of a wireframe or of a final design: shows where things go? (a) a final design (b) a wireframe
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16.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
Body text: 16 px
Title: 15 px
Label: 24 px
Caption: 20 px - 17.Which of these fits saving in the cloud? (a) a draft you are typing (b) a class leaderboard (c) the sound on/off setting (d) your last game level
- 18.🔢 In a sign-up flow, which comes FIRST? (a) make a password (b) enter the code sent (c) open the app (d) type name and email
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19.🖼️ In this wireframe (top to bottom), what is right above the search box?
[ Save button ]
[ filter buttons ]
[ search box ]
[ tab bar ]
[ list of items ]
[ top bar ] (a) top bar (b) list of items (c) filter buttons (d) Save button -
20.🖼️ In this wireframe (top to bottom), what is right below the title text?
[ list of items ]
[ title text ]
[ top bar ]
[ Add button ]
[ big picture ] (a) list of items (b) Add button (c) big picture (d) top bar - 21.True or false: a wireframe shows where things go. (a) True (b) False
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22.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
1. open “Score card”
2. tap Back
3. tap the Profile tab
4. open “Score card”
5. tap the Home tab
Which screen are you on now? (a) Score card (b) Search (c) Home (d) Profile - 23.Which of these is true of a menu button? (a) undoes one move (b) opens a list of pages (c) switches main sections (d) shows 3 to 5 icons
- 24.True or false: whether users get lost is about UX (the experience). (a) True (b) False
- 25.Which colour pair is easy to read? (a) red on green (b) black on yellow (c) yellow on white (d) light grey on white
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26.🧭 The app has tabs Home, Search, Profile. You start on Home, then:
1. open “Badges”
2. tap the Home tab
3. open “Friend list”
4. open “Map”
How many times must you tap Back to reach the main screen of this tab? -
27.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
1. open “Help page”
2. tap Back
3. open “Video”
4. open “Match report”
Which screen are you on now? (a) Match report (b) Video (c) Feed (d) Help page - 28.✏️ Why draw a wireframe before coding? (a) it runs the app (b) changes are quick (c) it adds colours (d) it saves data
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29.🖼️ In this wireframe (top to bottom), what is right above the tab bar?
[ menu icon ]
[ tab bar ]
[ Add button ]
[ top bar ]
[ list of items ] (a) Add button (b) menu icon (c) list of items (d) top bar - 30.✏️ Is this true of a wireframe or of a final design: has no real colours? (a) a final design (b) a wireframe
- 31.💾 Where should the app save notes to read offline: on the phone or in the cloud? (a) in the cloud (b) on the phone
- 32.Which colour pair is easy to read? (a) dark blue on black (b) dark blue on white (c) red on green (d) yellow on white
- 33.🔢 In a quiz-app flow, which comes first: “tap “Start quiz”” or “see if it is right”? (a) see if it is right (b) tap “Start quiz”
- 34.🔀 What is a user flow? (a) the path through screens (b) a type of font (c) a charging cable (d) a colour theme
- 35.🔢 In a food-order flow, what comes right after “pick a dish”? (a) track the order (b) open the menu (c) add it to the cart (d) pay for the order
- 36.🎨 Is this about UI or UX: how easy sign-up is? (a) UX (b) UI
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37.🔘 Our rule: buttons are at least 48 px tall. How many of these buttons follow the rule?
Start button: 32 px tall
Save button: 32 px tall
Next button: 36 px tall
Help button: 56 px tall - 38.🔀 A screen with no way forward or back is called a ___. (a) shortcut (b) dead end (c) home screen (d) tab bar
- 39.🔢 In a food-order flow, what comes right after “pay for the order”? (a) add it to the cart (b) check the cart (c) track the order (d) open the menu
- 40.Which of these is true of a menu button? (a) sits at the bottom (b) switches main sections (c) hides extra links (d) goes to the last screen
Answer key
- top bar
- a picture goes here
- 3
- 2
- reads the screen aloud
- 5
- Design A
- whether users get lost
- 28
- text that can grow
- experience
- everyone
- strong colour contrast
- see the home screen
- a wireframe
- 1
- a class leaderboard
- open the app
- filter buttons
- top bar
- True
- Home
- opens a list of pages
- True
- black on yellow
- 2
- Match report
- changes are quick
- menu icon
- a wireframe
- on the phone
- dark blue on white
- tap “Start quiz”
- the path through screens
- add it to the cart
- UX
- 1
- dead end
- track the order
- hides extra links
Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students