"Calcium carbide reacts with the water and that's a reasona

Состояние домов и подвалов. Уборка территории, состояние дорог и тротуаров. Детские и спортивные площадки. Озеленение. Парковки. Боремся с хамством.

"Calcium carbide reacts with the water and that's a reasona

Сообщение tujue » 17 дек 2018, 10:39

Logical reasoning is the second important topic for the students to overcome their competitive exams. Logical reasoning will be easy for those who practice it regularly. Previously Logical reasoning is a sub topic of Aptitude Chad Williams Cardinals Jersey , but now it is a separate task to perform. Onece cannot score high marks in any competitive exam without this Logical reasoning skill .There are so many logical reasoning books in the market but finding the good one is important. According to me Mydearstudent website is the better one.

Mydearstudent is one of the best resource for Logical reasoning topics. In Mydearstudent website Logical reasoning questions and answers are discussed with explanation. All the Logical reasoning topics from Mydearstudent website are included with so many important reasoning questions and answers. Every student has to spent few hours in Mydearstudent website to master this Logical reasoning.

Our believed recomendation to all the students and to all the employee is to visit Mydearstudent website to go through all important Logical reasoning questions and answers. Logical reasoning will also make your brain stronger to perform any critical brain work at any given point of time. Never neglect Logical reasoning if you want to score high in your academics as well as in your work area.

Free logical reasoning questions and answers from many competitive exams will be discussed in Mydearstudent. Logical reasoning is a important task for all students to overcome in many educational situations. Logical reasoning will definitely test every student's brain speed and decision making capacity. In mydearstudent website there are many Reasoning topics with solved questions and answers.Logical reasoning is one of the best strategy to find the logical behind the existing and non-existed item, scene, problem and many more.

1) Alpha-Numaric Reasoning
2) Alphabet Reasoning
3) Analogy Reasoning
4) Blood Relation
5) Assertion
6) Classification

For more details go through the website

http:www.mydearstudentreasoning

A senior Chinese official defended fire fighters who initially hosed water on a blaze in a warehouse in northeast China where volatile chemicals were stored, a response foreign experts said could have contributed to two huge blasts that killed 54 people.


More than a dozen firefighters were among those killed by the massive explosions at the busy port in Tianjin city on Wednesday night, state media said. About 700 people were injured, 71 seriously.


Columns of smoke from fires still burning on Friday rose from the blast site amid the devastation of crumpled shipping containers, thousands of torched cars and port buildings reduced to burnt-out shells. Rescuers pulled one survivor, from the wreckage, a city official told reporters. State television later said it was a firefighter.


The warehouse, designed to house dangerous and toxic chemicals, was storing mainly ammonium nitrate, potassium nitrate and calcium carbide at the time of the blasts, according to police. The official Xinhua news agency has said several containers in the warehouse caught fire before the explosions.


Chemical safety experts said calcium carbide reacts with water to create acetylene, a highly explosive gas. An explosion could be caused if fire fighters sprayed the calcium carbide with water, they said.


Lei Jinde, the deputy propaganda department head of China's fire department, a part of the Ministry of Public Security, told state-backed news website ThePaper that the first group of fire fighters on the scene had used water.


"We knew there was calcium carbide inside but we didn't know whether it had already exploded," he said.


"At that point no one knew, it wasn't that the fire fighters were stupid," Lei said, adding that it was a large warehouse and they didn't know the exact location of the calcium carbide.


David Leggett, a chemical safety expert based in California, told Reuters the acetylene explosion could have detonated the ammonium nitrate. The two blasts were about 30 seconds apart, the second much larger than the first.


"In my mind, the presence of ammonium nitrate makes it easier to explain the level of devastation," he said.


Stuart Prescott, a senior lecturer in chemical engineering at the University of New South Wales in Australia, said water was recommended to extinguish the two nitrates but a chemical powder was needed for calcium carbide.


"Calcium carbide reacts with the water and that's a reasonably violent reaction in and of itself, because it releases gas. The gas itself is also flammable," he said.


ASSESSING DAMAGE


The explosions at the port, the world's 10th largest, were so big they were seen by satellites in space and registered on earthquake sensors.


A team from the International Atomic Energy Agency's Beijing environmental emergency response centre, as well as 214 Chinese military nuclear and biochemical materials specialists, had gone to Tianjin, Xinhua said.


Several thousand residents were moved to 10 nearby schools after apartment buildings and homes were damaged, mainly by shockwaves from the explosions, it said.


Foreign companies from across the globe were trying to determine the damage to their facilities in and around the port, a gateway to northeast China.


French carmaker Renault said its warehouse at the port sustained severe damage and nearly 1,500 of its cars stored there were burned, according to early estimates.


Several Japanese automakers including Toyota Motor Corp reported minor damage to cars and facilities.


Mining giant BHP Billiton said its port operations and shipments were disrupted but its iron ore discharging berth had not been damaged.


Oil tanker arrivals and departures were also disrupted.


John Deere & Co, the U.S. farm and cons. Wholesale Jerseys From China Cheap Jerseys China Online Cheap Jerseys Online Authentic NBA Jerseys Wholesale Soccer Jerseys From China MLB Jerseys Free Shipping Replica Soccer Jerseys Wholesale Authentic NFL Jerseys Wholesale Adidas NHL Jerseys From China Authentic NFL Jerseys China
tujue
полковник
 
Сообщения: 1833
Зарегистрирован: 06 июл 2018, 06:12

Вернуться в Наши дома и наши дворы

Кто сейчас на конференции

Сейчас этот форум просматривают: нет зарегистрированных пользователей и гости: 22