Nickel and __________ are the alloying element added in steel to increase its toughness.
Molybdenum
Chromium
Vanadium
Silicon
- About __________ ton of coke is required in a cupola to produce one ton of casting.
- Which of the following is not a principal alloying element for the structural steel?
- Which of the following does not discharge the dust collected as a dry solid?
- Which of the following is the most suitable material of construction for the condenser tubes, where…
- If the head is doubled in & centrifugal pump, the power required will increase in the ratio of
- The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral…
- Hot dipping process is used for coating a low melting point metal (e.g. Pb, Sn, Zn) on iron, steel &…
- The most important consideration in value engineering is the
- The same volume of all gases is representative of their
- Work done by a/an __________ process is determined by ∫p. dv
- The two elements required to form substitutional solid solution should not have
- The passage between the nozzle and the __________ is called 'sprue' in case of injection moulding.
- Which of the following hardness tests does not measure the indentation hardness of metals and alloys?
- The most important consideration, while designing the refrigeration system of an aircraft is that the…
- Silicon percentage in the silicon steel used for electrical appliances/equipments is
- For dynamic strain measurement, the Wheatstone bridge used is of __________ type.
- Which of the following is an example of cathodic protection of metals against corrosion?
- The ratio of thermal & electrical conductivity is same for all the metals at the same temperature; and…
- Brass parts with high residual tensile stress at the surface are susceptible to season cracking (i.e.…
- Which of the following phenomenon/ phenomena is/are diffusion controlled?
- Referring to the periodic table of elements, it is found that with increasing atomic number. The atomic…
- More than 95% of __________ is present in corundum.
- Which of the following is preferred for riveting?
- 'GASOHOL' widely used in Brazil as a motor fuel is a mixture of alcohol and
- Coating thickness in case of galvanising of steel sheet generally corresponds to the deposition of __________…
- For preparation of porous bearings by powder metallurgy, preferred particle shape is
- Fatigue resistance of a material is measured by the
- Sand used to stop the green sand from sticking to the pattern is termed as the __________ sand.
- Air intake for an air compressor should be preferably taken from
- Satellites burn off during re-entry to earth's atmosphere, because of the