Biot number signifies

Match the property with their units

Property
$$A.$$ Bulk modulus
$$B.$$ Thermal conductivity
$$C.$$ Heat transfer coefficient
$$D.$$ Heart flow rate

Units
$$1.$$ $$W/s$$
$$2.$$ $$N/{m^2}$$
$$3.$$ $$N/{m^3}$$
$$4.$$ $$W$$
$$5.$$ $$W/mK$$
$$6.$$ $$W/{m^2}K$$

When the annual demand of a product is $$24000$$ units, the $$EOQ$$ (Economic Order Quantity) is $$2000$$ units. If the annual demand is $$48000$$ units the most appropriate $$EOQ$$ will be

Strength to weight ratio for a circuit shaft transmitting power is directly proportional to the