Constituents of stellite are
Zinc, copper & nickel
Cobalt, chromium & tungsten
Zinc, aluminium & nickel
Nickel, cobalt & vanadium
- Joining of thin foils is preferred to be done by
- If the head is doubled in & centrifugal pump, the power required will increase in the ratio of
- Specific __________ is a dimensionless quantity.
- Which of the following parameters is not responsible for the heat loss from a hot steam carrying bare…
- The following type of bonding is strongly directional in solids.
- The most prominent single cause of corrosion in boiler-tubes, drums, economisers and steam superheaters…
- The substance used as a smoke screen in warfare is
- Unbreakable crockeries are made from __________ polymers.
- Which of the following has the highest modulus of elasticity (about 7 × 106 kg/cm2)?
- The swift cup test evaluates the following property of a sheet metal.
- A material being tested for endurance strength is subjected to the __________ load.
- Propulsion of rocket follows from the
- Cupola produces __________ iron.
- The heat of neutralisation remains constant, when there is a reaction between dilute solutions of strong
- Two wires of the same radius & material having length in the ratio of 1 : 2 are stretched by the same…
- Elimination of brittleness resulting from welding of saw blades is done by __________ of the welded…
- The dimensional formula of bulk modulus of elasticity is same as that of the
- The malleability of a material is the property by virtue of which it can be rolled or hammered into…
- Pick out the correct statement.
- Pick out the wrong statement.
- The effect of friction on the flow of steam through a nozzle is to decrease the __________ of steam.
- Heat required to raise the temperature of a body by 1 °C is called its
- The function of neutral flux used in the pyrometallurgy of metal extraction is to increase the __________…
- __________ is the most important element, which controls the physical properties of steel.
- The amount of water evaporated in kg per kg of fuel burnt in a boiler is called the __________ of a…
- Pick out the wrong statement.
- The escape velocity of a body on earth which is independent of its mass is about __________ km/second.
- The difference between gross & net calorific values of fuel is due to the
- For preparation of porous bearings by powder metallurgy, preferred particle shape is
- Silicon percentage in the silicon steel used for electrical appliances/equipments is