RRB Government Jobs Exams Category

Heat is mainly transferred by conduction ,convection,radiation in
a.insulated pipes carrying hot water
b.refrigerator freezer coil
c.boiler furnaces
d.condensation of steam in condenser

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RRB Other Question

a shopkeeper says he sells his goods at cost price ,but he uses a weight of 800 gms instead of 1000 gms .thus makes a gain of ? Which one of the following is advantage of forging

a.good surface finish
b.low tooling cost
c.close tolerance
d.improved physically property