CHME 1150 Assignment 2
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Northern Alberta Institute of Technology *
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1150
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Mechanical Engineering
Date
Feb 20, 2024
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Assignment 2, Chapter 3 (Pressure Measurement)
Question 1
Correct
Mark 4.00 out of
4.00
Started on
Tuesday, 27 September 2022, 12:03 PM
State
Finished
Completed on
Tuesday, 27 September 2022, 9:42 PM
Time taken
9 hours 39 mins
Grade
28.00
out of 28.00 (
100
%)
Feedback
70678322: A02Q11 3.15 Absolute pressure to gage pressure
Category: Assignment 02
Express 267.2 kPa(abs) as gage pressure, if the atmospheric pressure is 99.4 kPa(abs). (provide your answer
(
numerical value and units
) in kPa(gage) with a precision of one
decimal)
Answer:
167.8 kPa
The correct answer is: 167.8 kPa(gage)
Question 2
Correct
Mark 4.00 out of
4.00
Question 3
Correct
Mark 4.00 out of
4.00
70678324: A02Q12 3.33 Gage pressure to absolute pressure
Category: Assignment 02
70678325: A02Q13 3.36 Pressure at the bottom of a tank
Category: Assignment 02
Express -13.4 psig as absolute pressure, if the atmospheric pressure is 14.1 psia. (provide your answer (
numerical
value and units
) in psia
with a precision of one
decimal)
Answer:
0.7 psia
The correct answer is: 0.7 psia
The pressure at the bottom of a tank of propyl alcohol at 25°C must be maintained at 56.34 kPa(gage). What depth of
alcohol should be maintained? (provide your answer (
numerical value and units
) in m
with a precision of two
decimals)
Answer:
7.16 m
The correct answer is: 7.16 m
Question 4
Correct
Mark 4.00 out of
4.00
Question 5
Correct
Mark 4.00 out of
4.00
70678330: A02Q14 3.37 Diving pressure in seawater
Category: Assignment 02
70678326: A02Q15 3.38 Pressure of a vertical pipe full of water
Category: Assignment 02
When you dive to a depth of 18.36 ft in seawater, what is the pressure? (provide your answer (
numerical value and
units
) in psig
with a precision of two
decimals)
Answer:
8.16 psig
The correct answer is: 8.16 psig
A water storage tank is on the roof of a factory building and the surface of the water is 53.5 ft above the floor of the
factory. If a pipe connects the storage tank to the floor level and the pipe is full of static water, what is the pressure in
the pipe at floor level if the temperature of the water is 60ºF? (provide your answer (
numerical value and units
) in psig
with a precision of two
decimals)
Answer:
23.18 psig
The correct answer is: 23.18 psig
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Question 6
Correct
Mark 4.00 out of
4.00
70678328: A02Q16 3.44 Bottom gage pressure in a tank
Category: Assignment 02
For the tank shown in the figure below, determine the reading of the bottom pressure gage in psig if the top of the tank
is vented to the atmosphere and the depth of the oil h is 26.70 ft. (provide your answer (
numerical value and units
) in
psig
with a precision of two
decimals)
Answer:
11.00 psig
The correct answer is: 10.99 psig
Question 7
Correct
Mark 4.00 out of
4.00
70678329: A02Q17 3.49 Depth of water in tank with oil layer at the top
Category: Assignment 02
For the tank shown in the figure below, compute the depth of the water if the depth of the oil is 6.57 m and the gage at
the bottom of the tank reads 116.5 kPa(gage). (provide your answer (
numerical value and units
) in m
with a
precision of two
decimals)
Answer:
6.23 m
sg
oil
= 0.86
sg
water
= 1
sg
s
=
γ
s
γ
ref
(
H
2
O
, 4
∘
C
)
p
bottom
= Δ
p
water
+ Δ
p
oil
Δ
p
oil
=
γ
oil
×
h
1
Δ
p
water
=
γ
water
×
h
2
h
2
=
p
bottom
−
sg
oil
×
γ
ref
(
H
2
O
, 4
∘
C
)
×
h
1
1 ×
γ
ref
(
H
2
O
, 4
∘
C
)
=
116.5 kPa
gage
kN
m
3
kPa
− 0.86 × 9.81
kN
m
3
× 6.57 m
1 × 9.81
kN
m
3
=
m
The correct answer is: 6.23 m
(
)
◄ Assignment 1, Chapter 1 (Nature of Fluids)
Jump to...
Assignment 3, Chapter 3 (Pressure Measurement) ►
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