Answer:
- the capacity of the pump reduces by 35%.
- the head gets reduced by 57%.
the power consumption by the pump is reduced by 72%
Explanation:
the pump capacity is related to the speed as speed is reduces by 35%
so new speed is (100 - 35) = 65% of orginal speed
speed Q ∝ N ⇒ Q1/Q2 = N1/N2
Q2 = (N2/N1)Q1
Q2 = (65/100)Q1
which means that the capacity of the pump is also reduces by 35%.
the head in a pump is related by
H ∝ N² ⇒ H1/H2 = N1²/N2²
H2 = (N2N1)²H1
H2 = (65/100)²H1 = 0.4225H1
so the head gets reduced by 1 - 0.4225 = 0.5775 which is 57%.
Now The power requirement of a pump is related as
P ∝ N³ ⇒ P1/P2 = N1³/N2³
P2 = (N2/N1)³P1
H2 = (65/100)²P1 = 0.274P1
So the reduction in power is 1 - 0.274 = 0.725 which is 72%
Therefore for a reduction of 35% of speed there is a reduction of 72% of the power consumption by the pump.
Answer:
the kilogram (kg), for mass.
the second (s), for time.
the kelvin (K), for temperature.
the ampere (A), for electric current.
the mole (mol), for the amount of a substance.
the candela (cd), for luminous intensity.
the meter (m), for distance.
Explanation:hoped this helped
Answer:
Explanation:
By Logical Identities formula, the simplifications and prove is as shown in the attached file.
THE ANSWER IS B Beaycs i like BExplanation:
Answer:
For 145 injuries, IR=82.86 // For 79 injuries, IR=45.14
Explanation:
As stablished by OSHA, incident rate (IR) is used as a measurement to compare a company's safety against the national average. It is calculated by multiplying the number of recordable cases by 200.000 and then dividing the result by the number of total labor hours of the company.
For 145 injuries:
IR= (145*200.000)/350.000 = 82.86
For 79 injuries:
IR= (79*200.000)/350.000 = 45.14
