Gupta Construction Civil Engineer Interview Questions and Answers

Grade M25 is a mix of concrete with a compressive strength of 25 megapascals after 28 days.

• M25 is a standard mix of concrete used in construction.

• It is made up of 1 part cement, 1 part sand, and 2 parts coarse aggregate.

• It has a compressive strength of 25 MPa after 28 days of curing.

• It is commonly used in the construction of buildings, bridges, and other structures.

• M25 is suitable for moderate exposure conditions and c

Android architecture stack is a set of layers that make up the Android operating system.

• The stack includes four main layers: Linux kernel, native libraries, Android runtime, and application framework.

• The Linux kernel provides low-level system functionality.

• Native libraries are written in C or C++ and provide access to hardware-specific features.

• The Android runtime includes the Dalvik virtual machine and core libraries.

• ...read more

AIDL stands for Android Interface Definition Language, used for inter-process communication in Android.

• AIDL is used to define the interface between client and service in Android.

• It allows communication between different processes in Android.

• AIDL is used to pass complex data types between processes.

• AIDL is similar to Remote Procedure Call (RPC) in other programming languages.

• Example: AIDL is used in Android to implement...read more

Hash set and hash map are data structures used to store key-value pairs for efficient retrieval.

• Hash set stores unique values without any specific order.

• Hash map stores key-value pairs and allows fast retrieval of values based on keys.

• Both use hashing to map keys to their corresponding values.

• In Java, HashSet and HashMap are implementations of these data structures.