Q. Steel balls are manufactured by cold heading. After cold forming, they are subjected to

View solution

Q. Free oxygen is removed from boiler feed water, because it

View solution

Q. Out of the following, the materials having maximum magnetic permeability is

View solution

Q. __________ is not a heat treatment process.

View solution

Q. An ingot is hot forged to a 60% reduction in cross-section area. The percentage reduction in the volume for the above process is

View solution

Q. Volute casing of a centrifugal pump does not facilitate

View solution

Q. Desert air coolers being rendered ineffective in rainy season is due to

View solution

Q. The hydraulic radius of a circular pipe of diameter 'd' flowing full is

View solution

Q. Flywheel is provided in a machine to

View solution

Q. Nickel is a __________ material.

View solution

Q. Grey cast iron (used for making underground water pipes and manhole covers) as compared to steel has higher

View solution

Q. L.D. converters are generally lined with

View solution

Q. When the weight of a ball inside the ball mill is just balanced by the centrifugal force,

View solution

Q. When water is sprayed on air, passing through an insulated chamber maintained at a temperature higher than the dew point of entering air but lower than its dry bulb temperature, then the air is

View solution

Q. The hardness of the lathe bed material is measured by the

View solution

Q. RADAR is

View solution

Q. In the floatation process, pine oil is used as the

View solution

Q. With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and __________ is not affected.

View solution

Q. Unit molar solution of __________ is the best conductor of electricity.

View solution

Q. A coal with high __________ content will ignite most easily.

View solution