Minimum thermal efficiency of a steam boiler may be around ____________________ percent ?

Related Mcqs:

Joining of thin foils is preferred to be done by _____________________?

A. Gamma rays B. X-rays C. Microwaves D. Gas welding...

Ceramic compounds as compared to metallic compounds ____________________ ?

A. Crystallise faster B. Resist greater tensile stress at room temperature C. Have higher melting temperature D. Are better conductor of electricity at higher temperature...

Pick out the wrong statement ?

A. A soft magnetic material should have high permeability and small area of hysteresis loop B. Poisson’s ratio of high melting point metals is more than unity C. Solders generally melt at less than 185°C D. Steel produced by B.O.F process is ideally suited for manufacturing flat product...

Corona discharge is related to the operation of a/an_______________________?

A. Induction motor B. Electrostatic precipitator C. Fast breeder reactor D. Magneto hydrodynamic generator (MHD)...

Material of construction of the electrode used in the electric resistance welding is___________________?

A. Stainless steel B. Graphite C. Copper D. Steel...