The 'laughing gas' is
Nitrous oxide
Nitric oxide
Nitrogen trioxide
Nitrogen pentoxide
- While the thermosetting polymers are amorphous in nature, the thermoplastic polymers are either amorphous…
- A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change.…
- __________ is not used as the control rod material in a nuclear reactor.
- Babbitt lining is used on brass/bronze bearings to increase the
- Frother is added in the froth floatation cell used in ore beneficiation to stabilise the air bubbles…
- Cold chisels hammers are made of
- Chlorine acts as a bleaching agent only in the presence of
- For a spontaneous natural process at constant temperature and pressure, the free energy of the system…
- Bad odour in sanitary latrines is reduced by periodically sprinkling
- Electrolytic reduction cell used for conversion of calcined Al2O3 to Al is a carbon lined furnace operating…
- The bank of tubes located at the back of the domestic refrigerators are the __________ tubes.
- Which of the following has the least value of ultimate tensile strength (UTS)?
- Fine grained steels have
- Nickel is a __________ material.
- The dimensional formula of bulk modulus of elasticity is same as that of the
- Strain hardening effect in a metal subjected to cold working is due to the __________ mechanism.
- Unit of surface tension in S.I. unit is
- Dies for wire drawing are generally made of
- When the wavelength of incident X-rays increases, the angle of diffraction
- Projection welding & stud welding is categorised as the __________ welding.
- Tip of the match stick contains a mixture of
- Brinell Hardness Number (BHN) for talc is approximately in the range of
- In condensers used in thermal power plants, steam is normally used in shell side and cooling water on…
- __________ number determines whether the fluid flow in an open channel is supercritical, critical or…
- Wave length of X-rays is about 1 angstrom; however it cannot pass through a sheet of
- __________ is the most important element, which controls the physical properties of steel.
- Compressed dry air is used as the cutting fluid, while machining
- During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional…
- High endurance limit of carburised machine parts is because of the fact that carburisation
- Angular displacement can be measured suitably by a