153) Which of the following boiler works on a forced circulation of water?

La-mont boiler

Benson boiler

Loeffler boiler

all of these

Answer is:

all of these

Explanation:

La-mont boiler, Benson boiler and Loeffler boiler boiler works on a forced circulation of water.

Right

Wrong

Answer is:

feedpump

injector

feed check valve

pressure gauge

Answer is:

Cornish boiler is a water tube boiler whereas Lancashire boiler is a fire tube boiler.

Cornish boiler is a fire tube boiler whereas Lancashire boiler is a water tube boiler.

Cornish boiler has one flue tube whereas Lancashire boiler has two flue tubes.

Cornish boiler has two flue tubes whereas Lancashire boiler has one flue tube.

Answer is:

does not change

increases

decreases

none of these

Answer is: