101. Many important fermentation products like antibiotics arc formed during :
102. Dilution rate D for a bioreactor is the reciprocal of :
103. Ficks Law of diffusion is analogous to :
104. In an ideal PFR the reactant concentration :
105. Conversions in reversible exothermic reactions can be improved by :
106. Frossling correlation relates mass transfer coefficient with:
107. Crushing Rolls are :
108. Differential method of analysis of kinetic dais is :
109. Rate Selectivity parameter is important in the design of :
110. A U-tube manometer ia.connected to a vessel to measure the pressure inside. If mercury is the working fluid of manometer, the height difference between two columns of the manometer measured is- 24 cm, the pressure inside the vessel in kPa is :
111. One kilogram of ivnter is heated from 20oC to 90°C. If the specific heat of water is 1.186 kJ/kgK, the entropy change occurred assuming constant specific heat in kJ/kgK is :
112. The volume flow rate of a water jet striking a flat plate placed normal to its path is 0.06 m3/s and exerts a force of 935 N. Considering the density of water as 1000 Kg/m3, the diameter in mm of the water jet is :
113. In order to have maximum power from a Peltou turbine, the bucket speed must be ;
114. Heat and work arc :
115. Air at 20oC blows over a hot plnte of dimensions 50 ˟ 60 cm maintained at 250oC. If the convection heat- transfer coefficient is 29 W/m2oC, the heat transfer took place in kW is :
116. In a condenser of a power plant, the steam condenses at a temperature of 70°C. The cooling water enters at 30oC and leaves at 50'C. Thu logarithmic mean temperature difference of the condenser is :
117. The work done in k.J/kg to pump water isentropically from 100 KPa and 30oC to 5 MPa at a constant specific volume of 0.001021 m3/kg neglecting the changes in kinetic energy and potential energy is:
118. A refrigerator takes an electrical power of 150( Watts and rejects 450 Watts to surroundirg air. The coefficient of performance of refrigerator is :
119. Which one of the following is a CFC refrigerant?
120. Tooth interference in an extenal involute spur gear pair can be reduced by.
121. The following data refers to two crossed helical gears used for speed reduction. Gear 1 Pitchcircle diameter in the plane of rotation 80 mm and helix angle 30o .Gear II. Pitch circle diameter in the plane of rotation 120 mm and helix angle 22.5°, It the input speed is 1280 rpm, the output speed in rpm is :
122. A dutch has outer and inner diameters 100 mm and 40 mm respectively. Assuming a uniform pressure of 2 MPa and coefficient of friction of liner material 0.4, the torque carrying capacity of clutch is :
123. The gyroscopic couple of a suspended disc rotating at 1000 rpm is 15 N-m and the mornent of inertia is 0.4 kg-m2 then the; precession velocity of life disc in rad/sec is close to :
124. The fraction of unbalanced mass used for primary balancing of a reciprocating engine is ;
125. If the balancing mass of a locomotive wheel is 15 kg acting at a radius of 0.7 m when the wheel has Head weight of 110 kg, the limit ing rotational speed of the wheel in rad/sec to avoid lifting from rails is close to :
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