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1.) What size pipe will maintain a shear stress at the wall of 0.624 psf when water flows through 300 ft of pipe causing a lost head of 20.0 ft?
2.) Compute the critical velocity (lower) for a 100-mm pipe carrying water at 27°C.
3.) Water at 20°C flows in a 100-mm-diameter new cast iron pipe with a velocity of 5.0 m/s. Determine the pressure drop in kPa per 100 m of pipe and the power lost (in kilowatts) to friction.
4.) Water at 38°C flows from A to B through 244 m of average 300-mm-I.D. cast iron pipe (∊ = 0.00061 m). Point B is 9.1 m above A, and the pressure at B must be maintained at 138 kPa. If 0.222 m3/s is to flow through the pipe, what must be the pressure at A?
An open cylindrical tank 4 ft in diameter and 6 ft deep is filled with water and rotated about its axis at 60 rpm. How much liquid is spilled, and how deep is the water at the axis?
A reservoir supplies water to a horizontal 6′′ pipe 800 ft long. The pipe flows full and discharges into the atmosphere at the rate of 2.23 cfs. What is the pressure in psi midway in the pipe, assuming the only lost head is 6.20 ft in each 100 ft of length?
Explain the Memory stack organization of 16 locations of stack( 0 to 15). take the initial value of the
stack pointer is SP = 0E in Hex. Explain the following push and pop instructions through the Memory
stack organization diagram.
(1) PUSH R5 WHERE R5 = XX in Hex
(2) POP R4 WHERE R4 = (XX + 3 ) Hex for example roll no 64 is having the data in R5 = 64
Hex and R4 is ( 64+3 = 67 Hex)
Stone A is hurled vertically upwards from a tower of height h with a speed vA0 . Simultaneously, stone B is thrown vertically upwards from the ground with a speed of vB0.
Given:
h=30m ; vA0=15m/s ; vB0=25m/s ; g=9.81m/s2 Find:
1. At which height and time do the stones fly past another?
2. At this time, what is the speed of stone A relative to stone B?
A steam engine isentropically expands 5 kg/sec of steam from 0.68 Mpa,
220°C, the exhaust is dry and saturated. Determine (a) the work of nonflow
process (b) the final temperature, and (c) the work of a steady flow process.
Water at 2.5 Mpa and 200°C is heated at constant temperature up to a
quality of 80%. Find (a) the quantity of heat received by the water, (b) the
change in internal energy, and (c) the work of nonflow process. (HINT:
table 4 needed)
Five kg of water vapour are contained at 150 kPa ad 90 per cent quality in a
suitable enclosure. Calculate the heat which must be added in order to just
produce a saturated vapor. What will the pressure be at the end of the
heating process?
The unique addresses assigned to the four registers (R11,R12,13,R14) of the I/O interface are equal
to the 373 , 377 , 37B and 37F in Hex . Where XX is hex digits equal to your roll no . (if student is having
roll no 45 than address are 453 ,457 ,45B , 45F in Hex ) .Show the well labeled external circuit that must
be connected between and 12-bit I/O address from the CPU and the CS, RSI, and RS0 Inputs of the
Interfaces
2. Explain the Memory stack organization of 16 locations of stack( 0 to 15). take the initial value of the
stack pointer is SP = 0E in Hex. Explain the following push and pop instructions through the Memory
stack organization diagram.
(1) PUSH R5 WHERE R5 = 37 in Hex
(2) POP R4 WHERE R4 = (40 ) Hex
