Wave length of X-rays is about 1 angstron, however it can not pass through a sheet of

Dislocations are __________ defects.

Upto the critical radius of insulation, added insulation, will

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

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

__________ pipe is the most suitable for carrying sanitary drainage.

Liquor poisoning generally occurs due to the presence of __________ in it.

Large diameter reinforced cement concrete (RCC) pipes are generally joined by __________ joint.

Increase in the entropy of a system represents the

Latent heat of dry steam at atmospheric pressure isKcal/kg; which __________ with increase in the pressure of steam.

Which of the following terminology is used for the temperature at which new grains are formed in a metal ?

Removal of non-condensables from steam or other vapour is termed as the __________ process.

Cold heading or upsetting is categorised as the __________ process.

The pressure drop per unit length for laminar flow of fluid through a long pipe is proportional to (where, A = cross-sectional area of the pipe & D = Diameter of the pipe)

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

A spring material should have low

The value of y = c_p/c_v. at < 500°C for air & most common gases can be safely assumed to be

The noble metals

Out of the following, the most melleable material is

Addition of __________ to steel does not help in improving its machinability.

Which of the following has the least oili-ness ?

Uniform ramming of sand in green sand moulding process leads to

Alloying elements present in Hayness stel-lite, which has superior performance than high speed steel, are

Cold chiesel & hammers are made of

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

Limestone is added in the blast furnace (during pig iron manufacture) to

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

Property responsible for the talcum powder to cling to the skin is the

__________ has a negative co-efficient of linear expansion.

Tesla metre per ampere (T. m/A) is the unit for the measurement of

Which of the following is an example of cathodic protection of metals against corrosion ?

Addition of silicon to aluminium improves its

Chalcopyrite is an ore of

Surface finish of casting does not depend upon the

The yield point phenomenon observed in annealed low carbon steel is due to the presence of the following element.

In __________ process, ions of salts react with water to produce acidity or alkalinity.

Tin is not present as an alloying element in

Maximum hardenability of steel depends upon its

The minimum and the maximum number of members required to form a Private Limited Joint Stock Company are respectively

Which of the following does not lower the surface tension of liquids ?

__________ property of a material is determined by the Herbert Pendulum device.

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

Cementite is in the lamellar form in the __________ phase of steel.

To improve the machinability of steel, it is generally subjected to

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

Thermal efficiency of an internal combustion engine is around __________ percent.

The phenomenon occurring during explosion of a hydrogen bomb is

Which of the following properties of a solid is not dependent on crystal imperfection ?

Mild steel has __________ crystal lattice structure.

The difference in one unit of Rockwell hardness number corresponds to a difference in the depth of indentation of __________ mm.