What is the difference between now() and current_date()?

959

2. Dry saturated steam at 3.5 bar is expanded through a convergent nozzle to 2.2 bar. The exit area is 5 sq. cm. Calculate the exit velocity and mass flow rate, assuming isentropic expansion and super saturated flow. b) A cast iron cylinder head is fastened to a cylinder of 750mm bore with 12 stud bolts. The maximum pressure inside the cylinder is 3 Mpa. The stiffness of part is thrice the stiffness of the bolt. What should be the initial tightening load so that the point is leak proof at maximum pressure? Also choose a suitable bolt for the above application 2 The propeller shaft of a marine engine is to transmit 600 kW at 1200 rpm, without a significant bending. The efficiency of the propeller is 88% at 32 knots ( 1 knot = 1085 km/hr). If the slenderness ratio is less than 50 and the permissible shear stress should not exceed 65 Mpa. Determine the diameter of shaft. 3 A semi-elliptic leaf spring consists of two extra full-length leaves and six graduated length leaves, including the master leaf. Each leaf is 7.2 mm thick and 65 mm wide. The centre-to-centre distance between the two eyes is 1.3m. The leaves are pre-stressed in such a way that when the load is maximum, stress induced in all leaves are equal to 380 N/mm sq. Determine the maximum force that the spring can withstand

2229

You want to magnetize a metal. How would you do that?

969

Can jdbc adapter query db tables? Can it insert?

477

describe slide agglutination test fpr widal

2414

Differentiate between response.expires and response.expiresabsolute?

967

why we use 19x9x9and 20x10x10 but not other

2149

Why did you leave your job at Buffalo Wild Wings?

1062

Explain about front drive mechanism in vehicle

1735

Is it possible to run a python script as a service in windows? If possible, how?

829

Device an algorithm for weiler-atherton polygon clipping, where the clipping window can be any specified polygon

5933

Which tags are no longer valid in html5?

939

Suppose you need not create separate db for every user in ppsft 8.4 onwards. This is possible because of?

653

What are benefits of Tensorflow over other libraries?

5

What command is used to interface ethernet into ubuntu cloud?

737