lever safety valve

dead weight safety valve

high steam and low water safety valve

spring loaded safety valve

Locomotive boiler

Lancashire boiler

Cornish boiler

Babcock and Wilcox boiler

Lancashire boiler is a fire tube boiler.

Fire tube boilers are internally fired.

Babcock and Wilcox boiler is a water tube boiler.

all of the above

receiver type compound engine

Tandem type compound engine

Woolf type compound engine

none of these

Correct

Incorrect