When the wet steam is throttled but still remains wet at the exit of the throttle valve, then its temperature & dryness fraction respectively
Decreases & increases
Increases & increases
Increases & decreases
Decreases & decreases
- The joint for soldering is supported by binding wire made of
- Dryness fraction of dry steam is
- The refrigerant freon-12 is chemically
- __________ is the most important element, which controls the physical properties of steel.
- Fire in fuel gas pipelines is extinguished most effectively by
- Corrosion of metals cannot be prevented by its
- Thermistors are used in __________ devices.
- Cold heading or upsetting is categorised as the __________ process.
- __________ are normally subjected to sub-zero treatment.
- Pressure exerted by a liquid depends upon its
- Dew point temperature always gives an indication of the __________ of the moist air.
- The lightest non-inflammable gas is
- Milk is fat dispersed in water. It is an example of
- A thin, flat & square plate measuring 2 m × 2 m is freely hanging in ambient air at 25°C.…
- The thickness of oxide film is y at time t. If are the temperature dependent constants, the parabolic…
- The condition of diffraction from a crystal is given by
- Notched bar test is used for testing the __________ of a material.
- A common disinfectant used in village wells for disinfection of water is
- Which of the following has the highest modulus of elasticity (about 7 × 106 kg/cm2)?
- Pick out the wrong statement.
- Which of the following metals is the most prone to work hardening?
- Which of the following has the least value of ultimate tensile strength (UTS)?
- Hot working of lead is carried out at
- For preparation of porous bearings by powder metallurgy, preferred particle shape is
- Corrosion rate cannot be lowered by reducing the __________ of the corroding medium.
- The 'laughing gas' is
- Heat release during phase change is observed in case of a/an
- Cold chisels hammers are made of
- Unit of viscosity in CGS system is
- Damage to metal surface by mechanical action is called