What is C++? How one can go for C++ in engineering?

C++ is an higher level object oriented programming language, that makes it an easy choice for programmers where large and complex codes have to be written, for example in gaming industries, writing compiler programs, in advance computation (however now Python is used widely for computing and scientific purposes). Programs written in C++ have better GUI then that of low level languages. Being an engineer you can choose any of the above mentioned field. You can be graphic designer, game developer, software developer like (Photoshop) etc. 

Try to get an internship at second and fourth semester as these semester are easiest ones and one have ample time for self development and skill enhancement.
Hope this helped! Good luck!