1
GATE PI 2017
Numerical
+2
-0
A manometer is used for the pressure measurement in a closed tank. The three fluids $$f1,f2$$ and $$f3$$ have specific weights $$\gamma ,$$ $$2\gamma ,$$ and $$0.5\gamma ,$$, respectively. The schematic arrangement with manometric readings and other dimensions are shown in the Figure. In order to ensure zero gauge pressure in the tank at the mid-height level $$(h/2),$$ the height of the tank $$h$$ (in $$m$$) is _________________.
2
GATE PI 2017
Numerical
+1
-0
A metallic cylindrical casing of an exhaust pipe has inner radius $$50$$ $$mm$$ and wall thickness $$7$$ $$mm.$$ If the thermal conductivity of the material of the casing is $$50$$ $$W/m$$-$$K,$$ then the thermal resistance of the casing in $$K/kW$$ is ________________ (up to three decimal places).
3
GATE PI 2017
+1
-0.3
An electrical appliances showroom sells $$2,400$$ ceiling fans in one year ($$52$$ weeks). The holding cost is $$10\%$$ of the cost of the ceiling fan. The most of one ceiling fan is Rs. $$600$$. The cost incurred for placing an order is Rs. $$201.$$ There is a lead time of $$5$$ weeks. The economic order quantity $$(EOQ)$$ and the reorder level, respectively (rounded to the next higher integer) are
A
$$231, 127$$
B
$$38, 231$$
C
$$127, 231$$
D
$$127, 13$$
4
GATE PI 2017
Numerical
+2
-0
The potential production alternatives for manufacturing a product along with their unit cost and monthly capacity are given in the Table.

The inventory at the end of july is $$100$$ units. If the demand for the month of August is $$620,$$ then the minimum total cost (in Rs.) to meet the demand is ______________

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