All categories

2 years ago

What is a rivet and how do tehey work

Engineering

1 answer:

Tresset [83]2 years ago

4 0

Answer:

A rivet is a mechanical fastener composed of a head on one end and a cylindrical stem on another (called the tail) which has the appearance of a metal pin.

When installed the rivet is either drilled, placed or punched into a hole, afterwards the tail is then deformed, holding the rivet in place. When finished the tail has the appearance of a dumbbell shape completing the riveted joint.

You might be interested in

At work, Julie is often told, "Get out of the way, this is man’s work, little woman." Her coworkers will often belittle her when

vazorg [7]

Answer:

Hostile

Explanation:

Hostile sexism is the negative attitudes that people develop towards individuals who violate traditional gender stereotypes. For example, teasing a boy who plays with dolls is an expression of hostile sexism. In most cases, it's regarded as antipathy toward women who violate traditional gender norms. In the case of Julie, other men workers perceive that Julie has violated traditional gender norms by doing men's work. Therefore, this is a clear example of hostile sexism.

3 0

2 years ago

Under which of the following conditions would material flood damage be considered an extraordinary item for financial reporting

dedylja [7]

Answer: A.Only if floods in the geographical area are unusual in nature and occur infrequently.

Explanation: Extraordinary items are special losses or gains that don't occur regularly and are unusual on nature. Since the materials damaged as a result of floods in the area are unusual and infrequently occurs they are to be considered as extraordinary items for financial statements purposes.

Business entities usually prepare the financial statements for Extraordinary items separately as they only occur on a one time basis.

6 0

3 years ago

You are to design the control for an automatic candy vending machine. The candy bars inside the machine cost 25 cents, and the m

labwork [276]

Answer:

I believe that it is E. Write Verilog HDL models for the machine based on the state diagram in (a) and the D flip-flop sequential circuit that you implement in (b).

6 0

2 years ago

A three-phase line has a impedance of 0.4+j2.7 per phase. The line feeds 2 balanced three-phase loads that are connected in para

mamaluj [8]

Answer:

a) 4160 V

b) 12 kW and 81 kVAR

c) 54 kW and 477 kVAR

Explanation:

1) The phase voltage is given as:

$V_p=\frac{3810.5}{\sqrt{3} }=2200 V$

The complex power S is given as:

$S=560.1(0.707 +j0.707)+132=660\angle 36.87^o \ KVA$

$where\ S^*\ is \ the \ conjugate\ of \ S\\Therefore\ S^*=660\angle -36.87^oKVA$

The line current I is given as:

$I=\frac{S^*}{3V}=\frac{660000\angle -36.87}{3(2200)} =100\angle -36.87^o\ A$

The phase voltage at the sending end is:

$V_s=2200\angle 0+100\angle -36.87(0.4+j2.7)=2401.7\angle 4.58^oV$

The magnitude of the line voltage at the source end of the line ( $V_{sL}=\sqrt{3} |V_s|=\sqrt{3} *2401.7=4160V$

b) The Total real and reactive power loss in the line is:

$S_l=3|I|^2(R+jX)=3|100|^2(0.4+j2.7)=12000+j81000$

The real power loss is 12000 W = 12 kW

The reactive power loss is 81000 kVAR = 81 kVAR

c) The sending power is:

$S_s=3V_sI^*=3(2401.7\angle 4.58)(100\angle 36.87)=54000+j477000$

The Real power delivered by the supply = 54000 W = 54 kW

The Reactive power delivered by the supply = 477000 VAR = 477 kVAR

5 0

3 years ago

All houses are built according to safety standards, so it is not important to consider injury prevention while at home.

cestrela7 [59]

It"s a False statement so it is important to consider injury prevention while at home.

Explanation:

All houses are built according to safety standards - This sentence only indicates the strength of the building. But inside the home there are so many possibilities occurs to have an injury., so it is important to consider injury prevention while at home.

8 0

3 years ago