Engineering Answers

Water drips from a tap at uniform rate onto the floor which is 1.5m below. The first drop strikes the floor at the instant the fourth drop is on the verge of falling from the tap. What would be the location of the different drops when the first drop hits the floor? D1 is on the floor and D4 is at the tap

Determine ho and Side flow rate and the power loss using the following

given parameters: Temperature = 62 C, N = 40 rev/s, W = 2 kN (bearing

load), r = 20 mm, c = 0.04mm, and l = 3.2 cm

Draw Freebody force diagram of a helical gear teeth. Explain how

Trumpler’s design criteria is used in designing Bearing. Why is it helpful?

A turbine shaft of diameter 250 mm is running at 1600 r.p.m. in a journal bearing and supports a load of 130 kN. Calculate (a) length of bearing if the permissible bearing pressure is 1.5 N/mm2 , (b) coefficient of friction, (c) rubbing velocity, (d) amount of heat to be removed by the lubricant per minute. The bearing temperature is 58 °C and viscosity of oil at this term is 0.02 kg/m-s. The bearing clearance is 0.25 mm, k = 0.002.

a black body of total area 0.05 m² is completely enclosed in a space bounded by 15 cm thick walls. the walls have a surface area 0.5 m² and the thermal conductivity 1.07 w/m.°c. if the inner surface on the enveloping wall is to be maintained at 225 celsius and the outer wall surface is at 30 celsius , calculate the temperature of the black body. neglect the difference between inner and outer surfaces area of enveloping material.

Define the term unit operation & unit process?

Which power law states that the work required for crushing is proportional to size reduction ratio?

a) Kick's law

b). Rittengers law

c) Bond's law d) Stokes law

e) Newton's law

To store the solids short period, which storage vessel useful..........

a) Silo

b) Bin

c) Hopper

d)- All of the above

e) None of the above

In a rotary-drum filter, the fractional submergence of the drum in the slurry is about

a) 0.03 b) 0.30

c) 0.50

d) 0.90