Q1: (a) A water tank is completely filled with liquid water at 60°C. The tank material is such that it can withstand tension caused by a volume expansion of 4%. Determine the maximum temperature rise allowed without jeopardizing safety. Take water coefficient of expansion (B) as 5.22 x 104 1/K at this temperature. (b) A weight, as shown in figure QIb-(a) has to move at constant velocity of 2 m/s on an inclined surface with a coefficient of friction of 0.27. The width of the block is 20 cm. V = 2 m/s 50 cm F1 = ? 45° 200 N Fig Qlb-(a) i. Determine the force (F1) that needs to be applied in the horizontal direction. ii. By applying a thick oil film as shown in figure Qlb-(b), the force required to push the block reduced by 45%. If dynamic viscosity of the oil is 12 cP, determine the oil layer thickness. V = 2 m/s, h = ? F2 = 0.45F1 45° 200 N Fig Qlb-(b) 30 cm
Q1: (a) A water tank is completely filled with liquid water at 60°C. The tank material is such that it can withstand tension caused by a volume expansion of 4%. Determine the maximum temperature rise allowed without jeopardizing safety. Take water coefficient of expansion (B) as 5.22 x 104 1/K at this temperature. (b) A weight, as shown in figure QIb-(a) has to move at constant velocity of 2 m/s on an inclined surface with a coefficient of friction of 0.27. The width of the block is 20 cm. V = 2 m/s 50 cm F1 = ? 45° 200 N Fig Qlb-(a) i. Determine the force (F1) that needs to be applied in the horizontal direction. ii. By applying a thick oil film as shown in figure Qlb-(b), the force required to push the block reduced by 45%. If dynamic viscosity of the oil is 12 cP, determine the oil layer thickness. V = 2 m/s, h = ? F2 = 0.45F1 45° 200 N Fig Qlb-(b) 30 cm
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![8:26
Today
Edit
8:25 pm
Q1:
(a) A water tank is completely filled with liquid water at 60°C. The tank material is such
that it can withstand tension caused by a volume expansion of 4%. Determine the
maximum temperature rise allowed without jeopardizing safety. Take water coefficient
of expansion (ß) as 5.22 x 104 1/K at this temperature.
(b) A weight, as shown in figure Qlb-(a) has to move at constant velocity of 2 m/s on an
inclined surface with a coefficient of friction of 0.27. The width of the block is 20 cm.
V = 2 m/s
50 cm
F1 = ?
45°
200 N
Fig Qlb-(a)
i.
Determine the force (F1) that needs to be applied in the horizontal direction.
ii.
By applying a thick oil film as shown in figure Qlb-(b), the force required to
push the block reduced by 45%. If dynamic viscosity of the oil is 12 cP,
determine the oil layer thickness.
V = 2 m/s,
h = ?
F2 = 0.45F1
| 45°
200 N
Fig Qlb-(b)
within a 4 cm pi
-05857 cP
litres per seconds
rifice plate. The
L031282-0.18
diameter to pipe d
30 сm](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa6561192-585b-45cb-bc13-f4f1a98760a4%2Ff0fc487f-7644-42a2-917a-1c6e9c998517%2Faoiz02_processed.jpeg&w=3840&q=75)
Transcribed Image Text:8:26
Today
Edit
8:25 pm
Q1:
(a) A water tank is completely filled with liquid water at 60°C. The tank material is such
that it can withstand tension caused by a volume expansion of 4%. Determine the
maximum temperature rise allowed without jeopardizing safety. Take water coefficient
of expansion (ß) as 5.22 x 104 1/K at this temperature.
(b) A weight, as shown in figure Qlb-(a) has to move at constant velocity of 2 m/s on an
inclined surface with a coefficient of friction of 0.27. The width of the block is 20 cm.
V = 2 m/s
50 cm
F1 = ?
45°
200 N
Fig Qlb-(a)
i.
Determine the force (F1) that needs to be applied in the horizontal direction.
ii.
By applying a thick oil film as shown in figure Qlb-(b), the force required to
push the block reduced by 45%. If dynamic viscosity of the oil is 12 cP,
determine the oil layer thickness.
V = 2 m/s,
h = ?
F2 = 0.45F1
| 45°
200 N
Fig Qlb-(b)
within a 4 cm pi
-05857 cP
litres per seconds
rifice plate. The
L031282-0.18
diameter to pipe d
30 сm
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