Angular MCQ Questions with answers and solutions Page 98

Q. What does the inject() function replace?

(A) NgModule
(B) Constructor-based dependency injection
(C) Services
(D) Providers

💬 Discuss

✅ Correct Answer: (B) Constructor-based dependency injection

Explanation: inject() allows DI without constructors.

Published by Kartik Sharma ⭐ 8.52K Points at 05-Jan-2026 08:11 am in Angular

Q. Which Angular feature enables hydration in SSR?

(A) Zone.js
(B) TransferState
(C) NgModule
(D) HttpClient

💬 Discuss

✅ Correct Answer: (B) TransferState

Explanation: TransferState helps transfer data from server to client.

Published by Kartik Sharma ⭐ 8.52K Points at 05-Jan-2026 08:11 am in Angular

Q. What does the router-outlet directive do?

(A) Loads services
(B) Acts as placeholder for routed views
(C) Handles guards
(D) Preloads modules

💬 Discuss

✅ Correct Answer: (B) Acts as placeholder for routed views

Explanation: router-outlet displays routed components.

Published by Kartik Sharma ⭐ 8.52K Points at 05-Jan-2026 08:11 am in Angular

Q. Which lifecycle hook is called when an input property changes?

(A) ngOnInit
(B) ngDoCheck
(C) ngOnChanges
(D) ngAfterViewInit

💬 Discuss

✅ Correct Answer: (C) ngOnChanges

Explanation: ngOnChanges reacts to @Input() changes.

Published by Kartik Sharma ⭐ 8.52K Points at 05-Jan-2026 08:11 am in Angular

Q. Which operator is used to handle errors in RxJS?

(A) catchError
(B) throwError
(C) retry
(D) finalize

💬 Discuss

✅ Correct Answer: (A) catchError

Explanation: catchError handles observable errors.

Published by Kartik Sharma ⭐ 8.52K Points at 05-Jan-2026 08:11 am in Angular

Q. Which Angular feature supports tree shaking?

(A) NgModules
(B) providedIn
(C) Two-way binding
(D) Event emitters

💬 Discuss

✅ Correct Answer: (B) providedIn

Explanation: providedIn enables tree-shakable providers.

Published by Kartik Sharma ⭐ 8.52K Points at 05-Jan-2026 08:11 am in Angular

Q. Which API is used to dynamically create components?

(A) ComponentFactoryResolver
(B) Renderer2
(C) ViewEncapsulation
(D) TemplateRef

💬 Discuss

✅ Correct Answer: (A) ComponentFactoryResolver

Explanation: ComponentFactoryResolver dynamically creates components.

Published by Kartik Sharma ⭐ 8.52K Points at 05-Jan-2026 08:11 am in Angular

Angular MCQs with answers Page - 98

Q. What does the inject() function replace?

Q. Which Angular feature enables hydration in SSR?

Q. What does the router-outlet directive do?

Q. Which lifecycle hook is called when an input property changes?

Q. Which operator is used to handle errors in RxJS?

Q. Which Angular feature supports tree shaking?

Q. Which API is used to dynamically create components?

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