Q. Specific gravity of a metal, which weighs 5 kg in air and 4 kg when submerged in water, will be

View solution

Q. Which of the following is an acidic constituent of B.F. slag ?

View solution

Q. Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of portland cement. The component of Portland cement which first hardens is

View solution

Q. Material of construction of the electrode used in the electric resistance welding is

View solution

Q. In practice, the compression ratio of compression-ignition (CI) engine ranges from

View solution

Q. Dislocations are __________ defects.

View solution

Q. The thickness of oxide film is y at time t. If K₁, K₂ and K₃ are the temperature dependent constants, the parabolic law of oxidation is given by

View solution

Q. Which of the following has the least value of ultimate tensile strength (UTS) ?

View solution

Q. Which of the following is a commonly used manometric liquid for low pressure range?

View solution

Q. The highest stress that a material can withstand for a specified length of time without excessive deformation is called the __________ strength.

View solution

Q. Metal shots used in shot blasting are made of

View solution

Q. At the point of boundary layer separation in fluid flow, the

View solution

Q. Brinell Hardness Number (BHN) for talc is approximately in the range of

View solution

Q. A spring material should have low

View solution

Q. The function of neutral flux used in the pyrometallurgy of metal extraction is to increase the __________ of the slag.

View solution

Q. The thermodynamic law, PVᵞ = constant, is not followed by the

View solution

Q. Pick out the wrong statement about the machinability of metals. Machinability of a metal

View solution

Q. The refrigerant freon-12 is chemically

View solution

Q. Which of the following phenomenon will exhibit the minimum heat transfer?

View solution

Q. __________ property of steel increases by addition of large amount of silicon in it.

View solution