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Strength tests: These tests are carried out to check the holding powers of various binders used in green moulding sand, dry moulding sand and core sand. These tests are performed on a U.T.M. The various test carried out includes:-
1. Compressive strength test
2. Shear strength test
3. Tensile strength test
4. Bending strength test
Out of these, compressive strength test is most important. The test specimen is
5.08 cm Φ × 5.08 cm long. The test is performed by applying a uniformly increasing load on sand specimen until it breaks. The compressive strength is read directly on the scale of the machine.
What is heat treatment and why is it done? Heat treatment can be described as a combination of operations or processes in which cooling and heating of an alloy or metal is done
A triangle ABC with vertices A (30,20), B(90,20), C(30,80) is to be scaled by a factor of 0.5 about a point X(50,40). Calculate :- (i) The composite transformation matrix; and
A multiple disc clutch, steel on bronze, is to transmit 4.5 kW at 750 r.p.m. The inner radius of contact is 40mm and outer radius of the contact is 70 mm. The clutch operates in oi
Determine the diameter of wire - close coiled helical spring: A close coiled helical spring has to absorb 100 N-m of energy while compressed to 10 cm. The coil diameter is 10
Prove energy is a property of system
If crankshaft oil seal seating area found ok : Replace with a new oil seal and ensure the seal seats in the stator plate properly and while fixing the stator plate ensure using sta
what is amplitude
Equation of motion of lift: Write equation of motion of lift when move up and when move down Assume, W = Weight carried by lift m = Mass carried by lift = W
for a mechanical stopwatch
Use of Labour-based and Appropriate Technology: The construction and maintenance of rural roads can generate a good level of employment. Hence, the technology used should be
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