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Ratio of chemical A and B in boiler Y is 3 : 2 and Boiler X has ratio of chemical A to chemical B as 1 : 7, 16 litres of mixture is removed transferred from boiler X to boiler Y. What is the total capacity of boiler Y if capacity of boiler X is 144 litres and difference between chemical A and B in boiler Y after transfer is 25 litres? Assume that after transferring 16 litres from boiler X, boiler Y is running at full capacity
Consider the following statements regarding welded and riveted joints 1. Welded assemblies are tight and leak proof as compared with riveted assemblies. 2. Single-welded V-joint is less reliable than square butt joint. 3. Welding results in a thermal distortion of the parts, thereby inducing residual stresses. Which of the above statements is/are correct ?
Consider the following statements regarding anchorage of pipelines conveying water : 1. At bends, pipes tend to pull apart 2. At bends, forces exerted on the joints due to longitudinal shearing stresses are enormous and the joints may get loosened 3. To avoid problems by hydrodynamic effects, pipes are anchored using concrete blocks which absorb side thrusts at bends 4. Pipes are also anchored on steep slopes Which of the above statements are correct?
In theories of failure, which theory states that no shearing stresses and shearing strains will be present anywhere in the block but only the volume changes?
A member which is subjected to reversible tensile or compressive stresses may fail at stresses lower than the ultimate stresses of the material. This property of metal is called
Which of the following statements regarding steam boilers are correct? 1. The boiler must be capable of quick starting and loading. 2. The boiler should have no joints exposed to flames. 3. The boiler must be capable of burning low ash content coal efficiently.
Water (CP = 4 kJ/kg K) is fed to a boiler at 30°C, the enthalpy of vaporization at atmospheric pressure in the boiler is 2400 kJ/kg; the steam coming from the boiler is 0.9 dry. What is the net heat supplied in the boiler?
The pull required to tear off the plate per pitch length is (where p = Pitch of rivets, t = Thickness of plates and $${\sigma _{\text{t}}},\,\tau $$  and $${\sigma _{\text{c}}}$$ = Permissible tensile, shearing and crushing stresses respectively)
Consider the following two statements regarding Bearing stiffeners provided at the location of a concentrated load: 1. Bearing stiffeners have to resist bearing and buckling loads. 2. Bearing area and the area resisting buckling load are the same. Which of the above statements is/are correct ?
A rotor which is balanced statically but not dynamically is supported on two bearings L apart and at high speed of the rotor, reaction on the left bearing is R. The right side of the bearing is shifted to a new position 2L apart from the left bearing. At the same rotor speed, dynamic reaction on the left bearing in the new arrangement will