96.

87.

58,

59.

61.

62.

63,

8. 17-106 12802701007 15 ೧೧711001001 10 ೩ 108801 10 13088076 07 77688076 inside. If mercury 15
the working fluid of manometer, the height difference between two columns of the
manometer measured is 24 cm, the pressure inside the vessel ‏سا‎ kPais :

കര 91.59 (8) 1

(0) 3.1 0) 184

One kilogram of water is heated from 20°C to 90°C. If the specific heat of water is
4.186 kJ/kgK, the entropy change occurred assuming constant specific heat in kd/kgK is :
(^) 6 (B) 1
(0). 981773 (D) 8

The volume flow rate of a water jet striking a flat plate placed normal to its path is 0.06 m%s
and exerts a foree of 935 N. Considering the density of water as 1000 Kg/m?, the diameter in
mm of the water jet is : '

കര 46 (0) 0
(©) 38 D) 97
In order to have maximum power from a Pelton turbine, the bucket speed must be :
(५) Equal to the jet speed (B) Equal to half the jet speed
(C) Egual to twice the jet speed (D) TIndependent of the jet speed
Heat and work are :
(^) Path functions (B) Extensive properties
(C) Point functions (D) Intensive properties

Air at 20°C blows over a hot plate of dimensions 50 x 60 ला maintained at 250°C. If the
convection heat transfer coefficient is 29 W/m?°C, the heat transfer took place in kW is :

ക്ര 6 B 14

© 8 D 2

In a condenser of a power plant, the steam condenses at a temperature of 70°C. The cooling
water enters at 30°C and leaves at 50°C. The logarithmic mean temperature difference of the
condenser is :

(ಗ) 2420 ®) 28.8°C

(0) 20.60 (D) 37.5°C

The work done in kd/kg to pump water mentm'pical.'ly from 100 KPa and 30°C to 5 MPa at a
constant specific volume of 0.001021 m¥%kg neglecting the changes in kinetic energy and
potential energy is :

@) 5 , 0) 38

(© 232 (D) 84

028/2016 10 A