Surface tension of a liquid
Which of the following are made out of the carbon steel having carbon content of 0.9 to?
The stress at which a metal fails by fatigue lies
The fugacity of liquid water atK is approximatelyPa. Considering the ideal heat of vaporisation asJ/gm mole, its fugacity atK would be
An approximately __________ process exemplifies the flow of a gas through a very long pipe of uniform cross-section.
The behaviour of a metal specimen, which when plastically strained in tension reduces its yield stress in compression and vice versa; is termed as the
Function of fusible plug in a boiler is to
Factor of safety in machine design is defined as the ratio of ultimate stress to __________ stress.
Milk is fat dispersed in water. It is an example of
"Encyclopaedia of Chemical Technology" has been
Material of construction of surveying metallic tapes is __________ which has low coefficient of expansion & enough strength.
The leg of a barometric leg pump is longer than the Toricellian leg, which is about __________ metres.
Out of the following, the __________ pipe has the least corrosion resistance.
Other parameters remaining same, the recrystallisation temperature of an alloy is lowered, when
Device used as a standard for the calibration of pressure gauges is a
In TIG welding, thoriated tungsten electrodes are used, because it
Steel is welded using the __________ flame.
__________ is the most suitable lubricant for drawing mild steel wires?
Theoretical volume of oxygen required for complete combustion of 1Nm3 of acetylene, in oxy-acetylene welding is __________ Nm3 .
Statistical quality control was developed by __________ , an American scientist during world war II.
At absolute zero temperature, for any reaction involving condensed phases
Welded joint is superior to revetted joint in respect of ease of fabrication, weight and strength. Which of the following joints is the most suitable for pipes carrying fluids under high pressure and temperature ?
With increase in steam pressure, its specific volume decreases
__________ are normally subjected to sub-zero treatment.
X-rays are
Vernier calipers can not be used to measure the
Reduction in the grain size reduces the __________ of the material.
Out of the following, the joint produced by __________ has the lowest strength.
Metals in general have a low value of thermal
Which of the following rays has the least wavelength?
Hydrocyclone is a
Direct conversion of thermal energy to electrical energy is facilitated by the
Wood is a/an __________ material.
Ammonia leakage in the refrigeration system is detected by
Stainless steel is welded with difficulty because of
Induced draft fans provided in large thermal power plant boilers have __________ blades.
Diffusion co-efficient of a metal in a solid solution depends upon its
Which of the following is not the commercial name of polymethyl-methacrylate (PMMA) ?
Absolute zero, pressure will occur, when the molecular momentum of the system becomes zero. A liquid will cease to exist as liquid at
Dies for wire drawing are generally made of
The minimum carbon content in steel should be __________ percent for it to respond to a hardening treatment.
Angular displacement can be measured suitably by a
Pick out the wrong statement.
The predominant mode of heat transfer which takes place from boiler furnace to water walls of a boiler is
Fibre glass is a composite material of
Mechanism/phenomenon involved in the improvement of fatigue strength of a material by shot peening is the
For preparation of porous bearings by powder metallurgy, preferred particle shape is
The bulk modulus of a material with Poisson's ratio of 0.5 is equal to
The Al2 O3 content of cryolite in Hall-Heroult's cell is maintained between __________ percent.
Which of the following has the highest value of refractive index ?
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