Which of the following forces does not act on a fluid at rest?
Viscous force
Gravity force
Hydrostatic force
Surface tension force
- __________ is the trade name assigned to a nonferrous cast alloy composed of cobalt, chromium & tungsten.
- __________ is the most suitable lubricant for drawing mild steel wires?
- A metal having a Poisson's ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal…
- A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm2.
- Blasting of tri-nitro-toluene (TNT) is done by mixing it with ammonium
- While the bin cards are used in the effective stores management, the queuing theory is associated with…
- A form of stress corrosion failure termed as 'season cracking' is generally observed in
- Presence of nickel & chromium in steel does not raise its
- About __________ ton of coke is required in a cupola to produce one ton of casting.
- Propulsion of rocket follows from the
- Dryness factor of steam is defined as the ratio of the mass of vapor in the mixture to the mass of the…
- Hot & cold working of material causes its __________ deformation.
- Heat transfer to the water wall in a high pressure water wall type boiler furnace is mainly by
- Holes for riveting purposes should be preferably made by
- Insulation of liquid surface can be achieved by __________ on top of its surface.
- The wet bulb temperature is lower in dry air than in wet air at the same temperature. A dry bulb thermometer…
- In a good rimming steel
- Which of the following is not a characteristic observed in material failure by fatigue fracture?
- Other parameters remaining same, the recrystallisation temperature of an alloy is lowered, when
- An approximately __________ process exemplifies the flow of a gas through a very long pipe of uniform…
- Constituents of stellite are
- Brinell Hardness Number (BHN) for talc is approximately in the range of
- A fluid is termed as the Newtonian fluid, when the shear stress is __________ the velocity gradient.
- Regeneration of molecular sieve requires it to be heated to a temperature of about __________ °C.
- One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C).…
- Between 230 and 370°C, blue brittleness is caused in mild steel because of the
- Carbon is present in the form of __________ in grey cast iron.
- Magnetic permeability of iron is increased by its
- The main charge in blast furnace is usually
- Air/fuel ratio by weight for combustion of methane with theoretical quantity of air will be about