Answer:
For any material if ∈ is the axial strain then the lateral strain is given by -μ∈ is the lateral strain in the object
Where,
μ is the poisson's ratio of the material
The longitudinal strain is calculated as follows
Thus the lateral strain becomes
now by definition of lateral strain we have
By hookes law the stress developed due to the given strain is given by
Applying values we get
Thus the force is calculated as
Answer:
Hot tear casting is the discontinuity or failures occurs during cooling or solidification phase in casting process. It is also known as hot crack
Explanation:
In case when the casting is of weak metal, when it is hot and casted, during the process residual stresses cause failures or discontinuity in casting as it cools resulting in hot tears i,e., material casted is partly liquid and partly solid.
Preventive measures:
- Ensure proper mold design
- A no. of gates should be used to even out temperature gradient.
- Over heated mold parts should not be used
- Proper choice of mold materials
Answer:
The tax on this property is dollars
Explanation:
Given
Tax on per $100 is $2.50
Tax on every $1 is dollars
Tax on property of value $150,000 is
dollars
The tax on this property is dollars
Answer:
The mass flow rate of air through the compressor is = 1.044
Explanation:
Mass flow rate refrigerant = 0.1
= - 0 °c = 273 K
= 50 °c = 323 K
= 3 KW
= 20 °c = 293 K
= 30 °c = 303 K
From the continuity equation
= 0.1
Put all the values in above formula
0.1 × 1.5 × ( 273 - 323 ) + 3 = × 1.005 × ( 303 - 293 )
10.5 = × 10.05
= 1.044
Therefore the mass flow rate of air through the compressor is = 1.044