Yes, turbines used today are radial steam engines.
I believe steam engines are still widely used in China
Steam engines presently produce more power than all other types of engines combined. Most steam engines take the form of the steam turbine engine. The steam turbine is responsible for generating about 86% of the electric power used on this planet. Reciprocating steam engines are still in use for limited applications, but are generally considered obsolete. Steam engines, either the piston or turbine type were used on most big ships until recently, and there are still a few steam locomotives about.
Aircraft designers didn't use steam engines in 1903, either.
There are still ships using steam engines. So, The correct answer is not yet
Yes, steam engines are still used in some modern industries and technologies, particularly in power generation and certain types of transportation.
There is no specific collective noun for steam engines, in which case any noun suitable for the context will work; for example a collection of steam engines, a display of steam engines, a museum of steam engines, etc.
Yes, steam engines were still very much in use in 1948, however diesel electric engines were gradually coming to most railroads.
They are called steam trains because they are pulled by steam engines.
Coal fired steam driven power stations are still in use
Steam engines and steam pumps performed and still perform any jobs presently performed by internal combustion engines, or electric motors. Except aircraft engines, (they and the necessary boilers are too heavy to fly). Locomotives, pumping, generating electricity, automobiles, industrial machinery...etc..
There is no specific collective noun for steam engines, in which case any noun suitable for the context will work; for example a collection of steam engines, a display of steam engines, a museum of steam engines, etc.
Yes it most certainly is. Some of the early vehicles actually had steam engines. They are still experimented with and may make another appearance if safety factors can be worked out.