Which of the following phenomenon/ phenomena is/are diffusion controlled ? Dislocation climb Cross-slip Recrystallisation Twinning TRUE ANSWER : ? YOUR ANSWER : ?
The total frictional resistance to fluid flow does not depend upon the Fluid density Roughness of the surface Fluid velocity Fluid pressure TRUE ANSWER : ? YOUR ANSWER : ?
The most commonly used combustion system manufactured in India for the thermal power plant boilers is the __________ combustion system. Pulverised fuel Travelling grate stoker firing Circulating fluidised bed Fluidised bed TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is a unit of time ? None of these Barn Angstrom Light year TRUE ANSWER : ? YOUR ANSWER : ?
Source of heat supply in a cupola is Lumpy coal Charcoal Coke Pulverised coal TRUE ANSWER : ? YOUR ANSWER : ?
__________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently. Expansion Flanged Bell and Spigot Collar TRUE ANSWER : ? YOUR ANSWER : ?
Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight 7 5 3 1.5 TRUE ANSWER : ? YOUR ANSWER : ?
For the irreversible reaction, Ca+ 2C = Ca C₂ , Δ H°298 = - 60000 J . mole⁻¹ . If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved at 298 K will be 240000 J 30000 J 90000 J 60000 J TRUE ANSWER : ? YOUR ANSWER : ?
Stretcher strains found in a low carbon sheet are associated with the Dislocation density Thickness of the sheet Texture Yield point phenomenon TRUE ANSWER : ? YOUR ANSWER : ?
Boiler draught of 10 mm water column is equivalent to 1 kgf/m² 1 kgf/mm² 10 kgf/mm² 10 kgf/m² TRUE ANSWER : ? YOUR ANSWER : ?