Boiler draught of 10 mm water column is equivalent to_____________________?

Related Mcqs:

A reduction in thermal resistance during heat transfer does not occur in the___________________?

A. Convection heat transfer by stirring the fluid and cleaning the heating surface B. Conduction heat transfer by reduction in the material thickness and increase in the thermal conductivity C. Radiation heat transfer by increasing the temperature and reducing the emissivity D. None of these...

Damage to metal surface by mechanical action is called____________________?

A. Pitting B. Corrosion C. Erosion D. None of these...

Silicon in steel__________________?

A. Makes it usable in almost all magnetic circuits where alternating current is used B. Increases its electrical resistivity and decreases the hysteresis loss C. Is present upto 5% & 4% respectively when used in transformers & motor armatures D. All ‘A’, ‘B’ & ‘C’...

A spring material should have low__________________?

A. Elastic limit B. Deflection value C. Fatigue resistance D. None of these...

Direct conversion of thermal energy to electrical energy is facilitated by the____________________?

A. Fuel cells B. Photo voltaic cell C. Magneto hydrodynamic generator D. None of these...