The softness or hardness of a grinding wheel depends upon the type & amount of bonding material used. For general purpose cutter grinding __________ grinding wheel is normally used.
Hard
Soft
Silicon carbide
Aluminium oxide
- A material is capable of resisting softening at high temperature, because of its property termed as
- A material subjected __________ must have high resilience.
- X-rays are
- If the head is doubled in & centrifugal pump, the power required will increase in the ratio of
- When the wavelength of incident X-rays increases, the angle of diffraction
- Which of the following is a boiler accessory i.e., not a boiler mounting?
- Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect…
- As the fluid flow rate increases, the float of the Rotameter
- Principal alloying element in Elinvar (used for making hair springs for watches) is
- Annealing of cast iron
- In case of condensers & evaporators operating under given terminal conditions, LMTD (logarithmic mean…
- Lead is added to 60:40 brass primarily to improve
- With increase in impurities in metals, their corrosion resistances
- Materials having resistivity ranging from 1 to 100 ohm. cm is termed as
- Titanium is produced by __________ of Ti Cl4.
- Nuclear fission of one atom of uranium-235 produces the energy equivalent to about __________ MeV.
- Out of the following, the most malleable material is
- Powder metallurgy technique is used in the production of __________ tools.
- For an ideal gas, Cp - Cv is
- __________ of austenite decreases the hardenability in steel.
- Super conduction in metals is observed at a temperature of __________ °K.
- At the point of boundary layer separation in fluid flow, the
- Hot extrusion of aluminium is done in the temperature range of __________ °C.
- A material being tested for endurance strength is subjected to the __________ load.
- According to thermodynamic Fahrenheit scale, the fundamental interval between ice point to steam point…
- Annealing of white cast iron produces __________ iron.
- Atomic __________ is a whole number for an element.
- The phenomenon occurring during explosion of a hydrogen bomb is
- Leakage in a cooking gas cylinder is detected by
- Maximum permissible air velocity in pipelines is about __________ metre/second.