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Grace [21]
2 years ago
7

A tension test was conducted on a specimen of AISI 1020 hot rolled steel having an initial diameter of 9.11 mm. The load at the

0.2% plastic strain offset was 17.21 kN, the highest load reached was 25.75 kN and the load at fracture was 17.39 kN. After fracture, the broken halves were assembled and the following measurements were made: (1) Marks on opposite sides of the necked region that were originally 25 mm apart had stretched to 38 mm apart. Similar marks originally 50 mm apart had stretched to 68.5 mm apart. (3) The final diameter was 5.28 mm. Determine the following properties from this test: yield stress, ultimate strength, percent elongation and percent reduction in area. Estimate the toughness.
Engineering
1 answer:
Ad libitum [116K]2 years ago
5 0

Answer:

gg

Explanation:

gg

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Primary Creep: slope (creep rate) decreases with time
Igoryamba

Answer:

true

Explanation:

Creep is known as the time dependent deformation of structure due to constant load acting on the body.

Creep is generally seen at high temperature.

Due to creep the length of the structure increases which is not fit for serviceability purpose.

When time passes structure gain strength as the structure strength increases with time so creep tends to decrease.

When we talk about Creep rate for new structure the creep will be more than the old structure i.e. the creep rate decreases with time.

5 0
3 years ago
Which of the following are hazards associated with portable ladders?
PilotLPTM [1.2K]

Answer:

A,C, and D

Explanation:

Potible ladders have to configure with many designs in mind but the most evedent is that they are usally unstable

BRAINLIEST PLS

7 0
3 years ago
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The most important element of green construction is that it is a(n) __________ approach to building. *
madam [21]
Environmentally friendly


Since it focuses on are sustainable and efficient with and are made with the future in mind.
5 0
3 years ago
Express the following quantities to the nearest standard prefix using no more than three digits.(a) 20,000,000 Hz(b) 1025 W(c) 0
bija089 [108]

Answer:

(a) 20 MHz

(b) 1.025 KW

(c) 3.33 ns

(d) 33 pF

Explanation:

(a) 20,000,000 Hz = 20 x 10^6 Hz = 20 Mega Hz = <u>20 MHz</u>

(b) 1025 W = 1.025 x 10^3 W = 1.025 Kilo W = <u>1.025 KW</u>

(c) 0.333 x 10^(-8) s = 3.33 x 10^(-9) s = 3.33 nano s = <u>3.33 ns</u>

(d) 33 x10^(-12)F = 33 pico F = <u>33 pF</u>

8 0
3 years ago
6. After removing the vacuum hose from the fuel-pressure regulator, you see gasoline has dripped out of the hose. Technician A s
lubasha [3.4K]

Answer:

Technician B is correct.

Explanation:

7 0
2 years ago
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