Q. Brass parts with high residual tensile stress at the surface are susceptible to season cracking (i.e. spontaneous cracking occuring on exposure to atmospheric corrosion), if its zinc percentage is more than

View solution

Q. Water flow in the river during flood can be categorised as the __________ flow.

View solution

Q. Basicity [%Cao + %MgO/% SiO₂) of the slag in Indian blast furnace is in the range of

View solution

Q. Out of the following, the dimensionless quantity is

View solution

Q. When a copper ball is heated, the largest percentage increase will be in its

View solution

Q. Which of the following hardness tests uses the depth of penetration caused by the indentor as the parameter for arriving at the hardness value of a material ?

View solution

Q. The most commonly used moderator in nuclear power plant is

View solution

Q. In an isochoric process,

View solution

Q. Which of the following metals can be extracted from its ore by both pyrometallur-gical as well as hydrometallurgical methods ?

View solution

Q. If a heat transfer surface is pock-marked with a number of cavities, then as compared to a smooth surface the heat transfer by __________ will not increase.

View solution

Q. Piezoelectric is a material

View solution

Q. Oxygen content below __________ percent in air contaminated with nitrogen does not support combustion and is unsafe for humane exposure.

View solution

Q. Moist air is cooled along the line of constant __________ , when it is passed over a cold & dry cooling coil, such that no condensation occurs.

View solution

Q. Which of the following has rotten eggy smell ?

View solution

Q. Freezing of 35% oleum during its shipment in winter is avoided by the addition of small amount of

View solution

Q. In hot working, dynamic recovery occurs in

View solution

Q. Which of the following manufacturing processes produces the strongest components ?

View solution

Q. Cast iron compared to steel is better in

View solution

Q. Sewage is not an excellent medium for the growth of

View solution

Q. Which of the following pair is correctly matched?

View solution