৮৬১১
The columns whose slenderness ration is less than 80 , are known as
উত্তর
medium column
৮৬১৩
Determine power rating of an electric motor if it runs at 1440 rpm and line shaft transmits torque of 75 Nm. Assume Reduction ratio =1.6
উত্তর
7.068kW
৮৬১৪
How are the efficiencies of any heat engine (miu) and reversible heat engine (miuR) compared, when both are operating between same heat source and same heat sink?
উত্তর
miu>miuR
৮৬১৫
which of the following components of reaction turbine increases the head on the turbine by an amount equal to the height of runner outlet above the tail race?
উত্তর
Draft tube
৮৬১৬
which of the following number is applicable in open hydraulic structure such as spillways , where gravitational force is predominant?
উত্তর
Froude's Number
৮৬১৭
The scales form in heat exchanges after a period of operation and provide additional resistance to heat transfer with some heat transfer coefficient. The reciprocal of this scale heat transfer coefficient is called.
উত্তর
fouling factor
৮৬১৮
The ratio of shear modulus to the modulus of elasticity for a poisson's ratio of 0.4 will be
উত্তর
5/14
৮৬২০
A cantilever beam of length L carries a gradually varying load form zero at free and w per unit length at the fixed end. The maximum deflection lies at
উত্তর
free end