Which one can be directly solidified from gaseous state without entering into liquid state ?

Related Mcqs:

Steam condenser tubes are made of admiralty brass, in which percentage of zinc & copper are _______________ respectively ?

A. 70 & 30 B. 30 & 70 C. 50 & 50 D. 90 & 10...

Preheating before welding is done to____________________?

A. Make the plate softer B. Burn oil & grease sticking to plate surfaces C. Avoid plate distortion D. Prevent cold cracks...

The ‘transition temperature’ for ductile to brittle behavior of steel increases with increase in the _____________ content in steel?

A. Carbon B. Manganese C. Both A nor B D. Neither A nor B...

Lead is poured into the joint between two ______________ pipes?

A. Mild steel B. Concrete C. Cast iron D. Asbestos cement...

Steels with high carbon equivalent have poor Weldability, because in these steels during welding________________?

A. Carbon and other alloying elements get oxidised from the weld pool B. Excessive ferrite forms in the heat affected zone leading to poor toughness of the weld C. Martensite forms in the heat affected zone leading to poor toughness/ductility of the weld D. Segregation of carbon and other element occurs in the weld pool … Steels with high carbon equivalent have poor Weldability, because in these steels during welding________________?Read More...