With regard to a steam boiler, the lettering "HRT" means
a) highly regulated temperature
b) hot return tubes
c) horizontal return tubular
d) highly regulated treatment
e) horizontal receiver tubes
Answer: C
With regard to a steam boiler, the lettering "HRT" means
a) highly regulated temperature
b) hot return tubes
c) horizontal return tubular
d) highly regulated treatment
e) horizontal receiver tubes