Q. Corrosion is

View solution

Q. Midrex process of sponge iron production uses reformed natural gas as the reducing agent, which uses iron ore in the form of

View solution

Q. A highly elastic material is deformed least on loading and retains its original form on removal of the load. Which of the following is the most elastic material?

View solution

Q. Working of linear variable differential transducer (LVDT) is based on the principle of variable

View solution

Q. For infinite parallel planes having emis-sivities ε₁ & ε₂, the interchange factor for radiation from surface 1 to surface 2 is given by

View solution

Q. A pycnometer is used for the measurement of

View solution

Q. Out of the following, which will fracture most readity, when hit with a hard hammer ?

View solution

Q. Eutectoid composition of carbon steel at room temperature is

View solution

Q. Which of the following equipments is used for liquid dispersion ?

View solution

Q. Nickel and __________ are the alloying element added in steel to increase its toughness.

View solution

Q. The expected efficiency of a single rivetted lap joint is of the order of 50%. If the thickness of the plate is increased four times, then the rivet diameter will have to be increased __________ times.

View solution

Q. Difference at any instant between the value of the controlled variable and the set point is called the

View solution

Q. Wavelength of radiation emitted by a body depends on the __________ of its surface.

View solution

Q. Inertial forces are obtained, when the elastic forces are multiplied by __________ number.

View solution

Q. For a spontaneous natural process at constant temperature and pressure, the free energy of the system always

View solution

Q. Addition of __________ to steel does not impart hardness.

View solution

Q. What is the value of entropy at 273°K ?

View solution

Q. __________ fluid force is not considered in the Navier-Stokes equation.

View solution

Q. Aluminium is extracted from

View solution

Q. Which of the following does not have a sharp melting point ?

View solution