Related Questions

Which of the following statements is/are correct?
1. The physical structure of asbestos makes it very difficult to open into yarns because it lacks in length and cohesiveness.
2. Asbestos is used for padding for laundry presses, belting for conveying hot materials, brake-lining and in clothes such as gloves and aprons.
3. Asbestos fibres are 3/811 to 3/411 in length.
4. Asbestos occurs as veins or strips in rocks.
Select the correct answer
Electrical resistance welding is preferred over oxyacetylene and arc welding for joining P/M parts.
Cold riveting holds the connected parts better than hot riveting.
In cold riveting like hot riveting shank is subjected to majorly tensile stress.
Mrs. Carson took a taxi to meet her three friends for lunch. They were waiting for her outside the restaurant when she pulled up in the car. She was so excited to see her friends that she left her tote bag in the taxi. As the taxi pulled away, she and her friends took notice of the license plate number so they would be able to identify the car when they called the taxi company.

#1 : The four women seem to agree that the plate starts out with the letter J.
#2 : Three of them agree that the plate ends with 12L.
#3 : Three of them think that the second letter is X, and a different three think that the third letter is K.

The four license plate numbers below represent what each of the four women thinks she saw. Which one is most likely the license plate number of the taxi?
Simplify : $${{{5 \over 3} \times {7 \over {51}}{\text{ of }}{{17} \over 5} - {1 \over 3}} \over {{2 \over 9} \times {5 \over 7}{\text{ of }}{{28} \over 5} - {2 \over 3}}}$$
Thickness of plate is required more in welding than in riveting.
A flat plate 1 m by 1 m is placed in a wind tunnel. The velocity and temperature of free stream air are 80 m/s and 10 degree Celsius. The flow over the whole length of the plate is made turbulent by turbulizing grid placed upstream of the plate. Find the thickness of the hydrodynamic boundary layer at trailing edge of the plate
A flat plate 1 m by 1 m is placed in a wind tunnel. The velocity and temperature of free stream air are 80 m/s and 10 degree Celsius. The flow over the whole length of the plate is made turbulent by turbulizing grid placed upstream of the plate. Find the heat flow from the surface of the plate
A composite wall consists of two plates A and B placed in series normal to the flow of heat. The thermal conductivities are kA and kB and the specific heat capacities are CPA and CPB for plates A and B respectively. Plate B has twice the thickness of plate A. At steady state, the temperature difference across plate A is greater than that across plate B, when