a) There are different ways of categorizing the wide variety of available
joining processes. According to classification by the American Welding
Society (AWS), joining processes fall into three major categories i.e
welding, adhesive bonding and mechanical fastening. Compare these
three various joining methods in term of its strength and easy to
manufacture characteristics.

b) Some types of welding processes can be classified into both fusion and
solid-state categories. Distinguish the fundamental process for both
categories.

c) Shielded metal-arc welding (SMAW) is one of the oldest, simplest, and
most versatile joining processes. About 50% of construction,
shipbuilding, pipelines, and maintenance work industrial currently
performed by this process. Illustrate and use a schematic diagram to show
the equipment and the shielded metal-arc welding process.

Q3) Three methods of supplying a 100 000 MJ workload and a 300 000 MJ heat load to a new shopping mall are to be compared. Work in the form of electricity is available from the National grid at 5c per MJ and heat in the form of hydr-carbon fuel is available at a cost of 2 cper MJ

The three methods are,

1. Electricity purchased for both Heat load and work load,
2. Using a 25% efficient fuel burning heat engine to supply work and a fuel fired furnace to supply the heat load.
3. Using a 20% efficient fuel burning heat engine.to supply the work load and using heat rejected by the heat engine to supply the heat load.

Determine the most economical method of supplying the requirements of the Mall.      

what can you say about newtons law of viscosity and pascals law ???

?? / ? = (?? - ?) ?? / ?
Since it is;
a) By mathematical analysis, show which Mach number the critical section will be.
b) In which nozzle does the critical section occur? Why? Explain by drawing a figure.
c) Which diffuser creates critical section? Why? Drawing a shape please explain.

this is a energy system homework of energy systems lecture from mechanical engineering thank you for efforts

QI: Choose the appropriate answer A, B, C, or D (25 point) 1- In the open loop transfer function, what is the relationship between input and output signals? (A) Output does not depend on the input (C) Input depends on the Output 2-The suitable test signal for the system that is subjected to shock inputs is ------. (A) Ramp function (B) Step function (C) Impulse function (D) None of above 3-The error signal is equal to the difference between (A) Desired and feedback (B)Output and feedback (C)Desired and disturbance (D)None of (B) Input does not depend on the Output (D) none of above signals. above 4- If a sensor can measure the position of an object on power-up relative to a reference (the distance of the object from a reference point on power-up), it is called- (A) Incremental sensor (B) Absolute sensor (C) Velocity sensor (D) None of above 5- The key to ---- operating principle is that the change in the position of the rotor element changes the electromagnetic coupling (magnetic flux linkage) between the two windings. (A) syncro sensors (C) linear variable differential transformer (LVDT) sensor (D) temperature sensor (B) pressure sensor

A solid cylindrical shaft, 3 in. dia. 20 in. long, is used for the transmission of mechanical power at a rate of 50 hp running at 1300 rpm. The modulus of rigidity for the material used is 16 × 10⁶ psi. Calculate:

1. the shear stress acting on the shaft;
2. the torsional deflection of the shaft.

design and perform your experimentation and evaluate the energy storage performance of these sensible heat thermal energy storage system natural number friction factor are to be found using friction and Reynolds number and what fraction attempt and develop more functional relationship for natural number and fractional factorial using first order

Assuming you are new engineer working in R & D division at manufacturing company which has decided to evaluate CAD/CAM system to adopt in your company in order to meet Industrial 4.0. Make an outline to decided which suitable CAD/CAM system can be selected to adapt with Industrial 4.0.

A 4 ? edge bucket with a 1.5 ? opening at the right end of the lid contains 48 ?3 of water. If the cube experiences a horizontal acceleration of 14,715 ? / ?2

a) First to the right

b) Second, to the left

In both cases, determine the volume spilled and the pressure at the midpoint of the base of the bucket.

Motor sizing decision must consider 3 factors; stall torque, no load speed and maximum power. With the help of motor performance chart, please discuss them in detail.

The levels of combustible species in the exhaust of a direct-injection diesel engine are: HC, 0.8
g/kW.h; CO, 3 g/kW.h; particulates, 0.7 g/kW.h. If the specific fuel consumption is 210
g/kW. h calculates the combustion efficiency

Water at 60 ∘C is pressurized in a pump from 90 kPa to 1600 kPa. If this requires 2.4 kJ for every kg of water that moves through the pump, then what is the isentropic efficiency of the pump? (Assume the mechanical efficiency is 100%)

I need a mathematical model governing the mechanism of air source heat pump with split evaporator connected with bryair dehumidifier for water heating and space cooling application....draw a schematic arrangement using AutoCAD and develop a mathematical model in fortran 77...

please don't write irrelevant answers...if u don't know it's ok skip but don't write wrong answers

A 75‐mm‐diameter orifice with D and D/2 taps is used to measure the flow rate of 65°C water in a 150‐mm‐ID pipe. Determine the pressure difference for a flow rate of 20 L/s