Work hardenable alloy steel used to make the bucket wheel excavators, blades of bulldozers and other earth moving equipments contain iron, carbon and
Manganese
Silicon
Nickel
Chromium
- Upto the critical radius of insulation, added insulation, will
- Which of the following is not a characteristic observed in material failure by fatigue fracture?
- Which of the following terminology is used for the temperature at which new grains are formed in a metal?
- The two elements required to form substitutional solid solution should not have
- The friction factor for the turbulent fluid flow in a rough pipe does not depend upon the
- All of the following alloying elements of steel increases hardness but sacrifice ductility, except
- When dry bulb temperature & wet bulb temperature of moist air is the same, it means that the
- A solution which resists change in its pH value on addition of acid/alkali is called the __________…
- Cold heading or upsetting is categorised as the __________ process.
- A jig is used while __________ a hole.
- Dryness factor of steam is defined as the ratio of the mass of vapor in the mixture to the mass of the…
- Large diameter reinforced cement concrete (RCC) pipes are generally joined by __________ joint.
- During sensible heating of humid air
- Cold chisels hammers are made of
- Pick out the wrong statement about coating/electroplating of metals.
- __________ furnace is generally used in the non-ferrous foundries.
- A high pressure boiler generates steam at a pressure greater than __________ kg/cm2.
- In a forced draft cooling tower, water is cooled from 95 to 80°F by exposure to air with a wet bulb…
- Steel & cast iron pipes are produced by __________ casting.
- About __________ ton of coke is required in a cupola to produce one ton of casting.
- Which of the following is not an ore of copper?
- The best lubricants for a machine working at high temperature & load is
- Silicon percentage in silicon steel used for electrical equipments is about
- Copper deposits are found in India at the following location:
- Lap joints are preferred over butt joints in soldering/brazing, because these joints are
- Vernier calipers cannot be used to measure the
- The bolt is subjected to __________ when the nut is tightened by putting the washer beneath it.
- Coating thickness in case of galvanising of steel sheet generally corresponds to the deposition of __________…
- The value of for air & most common gases can be safely assumed to be
- Moist air is cooled along the line of constant __________ , when it is passed over a cold & dry cooling…