A vertical plate and a horizontal plate are suspended in an open room. Both are heated to the same temperature. Which one will cool first?
BARC,
11 167101. A single acting stage air compressor with 6% of clearance volume compresses air from 1.2 bar to 6.5 bar. Find the change in volumetric efficiency if the exponent of expansion process changes from 1.55 to 1.72.
2 25052. 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
861Post New Mechanical Engineering Questions
what is 2062 stands for in is2062 material?
What's the difference between absolute vibration & relevant vibration regarding Boiler Feedwater Pump ?
please send all previous solved question papers on HLL......
what is procedure of measuring operating length of mechanical seal.(in case of centrifugel pump)
HOW CAN WE MEASURE THE L SHAPE SURFACE OF THE MOMENT OF INERTIA AND SECTION MODULUS
Can I use IS 2062 GR B Material for low temperature application upto -20 C ?
How does optical pyrometer work?
how calculate the bearing number from inner and outer dia of bearing
sir, i am completed in diplamo. can i join in iit, anna univercity as lateral entry. pls reply me sir.
What is the difference between Runout and Total Runoutvv
What are the items to inspect after cylinder liner is pulled out
Sir, I'm P.Ravi Kumar want to previous mechanical Question Papers for rrb exam
What is the purpose of starting air?
how to solved the crictical problems in d. g. set
What is difference between HP and Torque
