Question No : 1
While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen flame is about __________ °C.
Question No : 2
Steel containing low percentage of nickel, chromium & tungsten are termed as the __________ steel.
Question No : 3
The main constituent of bones is
Question No : 4
Water-tube boiler is the one, in which
Question No : 5
Which of the following equipments is used for liquid dispersion?
Question No : 6
__________ is the most important element, which controls the physical properties of steel.
Question No : 7
Lap joints are preferred over butt joints in soldering/brazing, because these joints are