A. Voltage balancing potentiometric
B. Ballast
C. none of these
D. Simple current sensitive
A. Nodular
B. Malleable
C. Grey
D. Ductile
A. Nitrogen
B. Calcium
C. Hydrogen
D. Phosphorous
A. Stainless steel
B. Wrought iron
C. High speed steel
D. Mild steel
A. Thermal diffusivity
B. Density
C. Thermal conductivity
D. Viscosity
A. with a non-ferrous filler.
B. without melting the base metal.
C. neither (a) nor (b).
D. both (a) & (b).
A. magnesium
B. manganese
C. copper
D. vanadium
A. high speed steel
B. cermets
C. stellite
D. tungsten carbide
A. 70% aluminium oxide & 30% silica.
B. 90% tungsten carbide and 10% cobalt.
C. 65% tungsten & 35% zirconium
D. 30% nickel, 15% chromium & 55% tungsten.
A. pressure
B. entropy
C. heat
D. volume
A. hot dipping
B. nitriding
C. both b & c
D. electroplating
A. reducing and basic slag.
B. oxidising and basic slag.
C. oxidising and neutral slag.
D. high activity co-efficient of phosphorous in metal.
A. product of coal tar distillation.
B. high temperature heating medium (a petroleum product).
C. none of these.
D. very heat sensitive material.
A. high speed steel
B. cermets
C. tungsten carbide
D. alloy steel
A. passing it through a pressure reducing valve
B. increasing its cross-sectional area of flow.
C. none of these
D. forcing it downwards through a vertical tube.
A. bromine
B. free chlorine
C. potassium permanganate
D. iodine
A. 0.500694444444444
B. 0.250694444444444
C. 1.00069444444444
D. 0.750694444444444
A. number
B. weight
C. radius
D. volume
A. improving heat transfer
B. providing support for the tubes
C. preventing the fouling of tubes & stagnation of shell side fluid
D. both 'a' & 'b'.