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mezya [45]
3 years ago
10

Cavitation in pump assemblies can be avoided by decreasing tank pressure. a)-True b)-False

Engineering
1 answer:
IgorLugansk [536]3 years ago
7 0

Answer:

a) True

Explanation:

Cavitation in a pump occurs when the pressure of the liquid inside the pump suction is less than the vapour pressure at the suction. And also when the pump discharge pressure is extremely high.

Therefore cavitation in the pump assemblies can be avoided by decreasing the tank pressure because discharge cavitation takes place when the pressure at the pump discharge is extremely high.  High pressure at the discharge end of the pump prevents the water from flowing easily out, thereby recirculating the water within the pump which causes cavitation. So when the tank pressure is low, the pump discharge pressure will be low thus avoiding cavitation.

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Aleonysh [2.5K]

Answer:

Lockheed SR-71 Blackbird

Explanation:

7 0
3 years ago
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A step-up transformer has 20 primary turns and 400 secondary turns. If the primary current is 30 A, what is the secondary curren
-BARSIC- [3]
150
A
Explanation:
V
s
V
p
=
N
s
N
p

(
1
)
N
refers to the number of turns
V
is voltage
s
and
p
refer to the secondary and primary coil.
From the conservation of energy we get:
V
p
I
p
=
V
s
I
s

(
2
)
From
(
1
)
:
V
s
V
p
=
900
00
3
00
=
300
∴
V
s
=
300
V
p
Substituting for
V
s
into
(
2
)
⇒
V
p
I
p
=
300
V
p
×
0.5
∴
I
p
=
150
A
Seems a big current.
3 0
3 years ago
How many hours should I charge a 4.8v 600mah battery (I need it by today please)
prohojiy [21]

The number of hours that will be needed to charge a 600mah battery will be 1.5 hours.

<h3>What is a battery?</h3>

It should be noted that an electric battery simply means a source of electric power that consist of one or more electrochemical cells that are with external connections that are important for powering electrical devices.

It should be noted that when a battery is supplying power, then the positive terminal is the cathode while the negative terminal is the anode.

In conclusion, the number of hours that will be needed to charge a 600mah battery will be 1.5 hours.

Learn more about battery on:

brainly.com/question/16896465

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5 0
2 years ago
the tire restraining device or barrier shall be removed immediately from service for any of these defects except
lora16 [44]

Restraining devices and barriers shall be visually inspected on the rim wheel components or sudden release of contained air.

Restraining device means an apparatus such as a <em>cage, rack, assemblage of bars and other components</em> that will constrain all rim wheel components.

Restraining devices and barriers shall be visually inspected on the rim wheel components or sudden release of contained air. Any restraining device or barrier exhibiting damage such as the following defects shall be immediately removed from service.

Find out more on Restraining devices at: brainly.com/question/24647450

5 0
2 years ago
A tensile test is performed on a metal specimen, and it is found that a true
alexdok [17]

Answer:

600 mpa

Explanation:

It's smart for a equation then you reperfuce

5 0
3 years ago
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