Common sense test paper for safe use of electricity

1. Questions and Answers on Safe Electricity Use 100

Basic Knowledge of Safe Electricity Use School: _ _ _ _ _ _ _ Class: _ _ _ _ _ _ Name _ _ _ _ _ _ Student ID _ _ _ _ _ _1. Fill in the blanks: 1. There are _ _ electric shocks and _ _

2. The ways of electric shock are mainly divided into _ _ _ direct contact electric shock and _ _ _ indirect contact electric shock. In addition, high-voltage electric field, high-frequency magnetic field, electrostatic induction and lightning strike can also cause harm to human body. 3. Indirect contact electric shock includes _ _ _ _ step voltage electric shock _ _ _ _ _ _ contact voltage electric shock _ _ _ _.

4. The factors that determine the degree of electric shock injury are _ current size _, _ duration through human body _, _ route through human body, _ voltage level _, current frequency _ and human body condition _. 5. The average perceived current of adult males is about _ 1. 1_mA, and that of adult females is about _0.7_mA.

6. The maximum current that people can get rid of the power supply after getting an electric shock is called _ get rid of current _. The average discharge current of adult males is 65438±06ma, and that of adult females is about 65438 000 Ma. 7. The minimum current of ventricular fibrillation and life-threatening caused by electric shock in a relatively short period of time is called _ lethal current. Generally, the current exceeding 1s and _ 50ma is fatal enough.

8. Electric current passing through any part of human body may lead to death. The following current paths are _C_, _A_ and _B_. A. Right hand to toe B. One foot to the other C. Left hand to the chest 9. _30~300_HZ alternating current is the most harmful to human body.

10, in order to protect personal safety and avoid electric shock accidents, the uncharged metal parts of electrical equipment are electrically connected with the earth, which is called _ protective grounding _. Mainly used in power systems with ungrounded neutral points.

Its principle is to use the function of small resistance and strong shunt in parallel circuit. 1 1. In a 380/220V low-voltage system with ungrounded neutral point, it is generally required that the protective grounding resistance Rd is less than or equal to _ 4 _ ω.

12, grounding short-circuit current is large (its value is greater than 500A), and the grounding resistance is generally not greater than _ 0.5 _ω. 13, connect the exposed conductive part of the normally uncharged electrical equipment with the neutral line of the power supply, which is called _ protection to zero _.

Mainly used in power systems with neutral point directly grounded. 14. The leakage circuit breaker is a high-sensitivity control electrical appliance, which is combined with the air switch and has the functions of short circuit, overload, leakage and undervoltage protection.

15, commonly used screen protection devices are _ barrier _, _ fence _, _ fence _, _ protective net _. 16. When multiple lines are erected on the same pole, the order of erection from top to bottom is _2, 3, 1_.

1. Communication line 2. High-voltage line Low voltage line 17. Under the new standard, the three-phase circuits of AC circuits in China are marked with _ red _, _ yellow _ and _ green _ colors respectively. 18, the main insulation properties are _ electrical properties _ and _ heat resistance.

19. The heat resistance grades of insulation materials are _Y_, _A_, _E_, _B_, _F_, _H_ and _C_. 20, electric shock accidents generally have the characteristics of _ multiple _, _ sudden _, _ seasonal _, _ high mortality _.

2 1. Make a simple diagnosis for the person who gets an electric shock. The implementation steps are as follows: 1_ Move the electric shock victim away from the power supply quickly, move to a ventilated and dry place, lie on your back, and unbutton your coat and belt _. 2_ Observe whether the pupil of the electric shock person is enlarged _.

3_ Observe whether the person who gets an electric shock breathes, and touch the cervical carotid artery for pulsation _. 22. The methods to judge the symptoms of "suspended animation" are _ watching _, _ listening _ and _ trying _.

23. For those who get an electric shock by "chest pressing", "chest pressing" should be adopted. 24, for those who get an electric shock with heartbeat and respiratory arrest, _ crowd breathing should be adopted.

25. The key points of electric shock first aid are: quick rescue and correct methods. 26, from the low-voltage power supply mode can be summarized as five words _ pull _, _ cut _, _ pick _, _ drag _, _ pad _.

Second, judging right or wrong 1, safe use of electricity is one of the important signs to measure the level of electricity consumption in a country. (√)2. The occurrence of electric shock accidents is seasonal.

(√ )3. Due to the frequent use of electricity in cities, there are more electric shock accidents in cities than in rural areas. (* )4. Electric burns, electrocautery and skin metallization are all electric injuries.

(√ )5. Step voltage electric shock belongs to direct contact electric shock. (* )6, two-phase electric shock is more dangerous than single-phase electric shock.

(√) The current of 7.0.1a is too small to be fatal. (* )8. Alternating current with the same intensity is more dangerous than direct current.

(√ )9. In any environment, 36V is safe voltage. (*) 10, because the zero line is safer than the live line, most switches are installed on the zero line.

(*) 1 1, in order to make the airway of the electrocuted person unblocked, you can put a pillow under the head of the electrocuted person. (*) 12, if the person who got an electric shock is still awake after 5 hours of rescue, he should continue.

(√) 13. After the electric shock is unconscious, you can shake your body violently to make it recover as soon as possible. (*) 14, electrical equipment must have a certain insulation resistance.

(√) 15. The correct position of chest compression is on the left side of the human chest, which is the heart. (*) 16, mouth-to-mouth artificial respiration can be used when the electric shock victim's teeth are clenched.

(√) 17 In order to effectively prevent the occurrence of equipment leakage accidents, electrical equipment can adopt double protection of grounding and zero connection. (*) 18 in the process of pulling the electric shock victim away from the power supply, the ambulance personnel should use both hands to ensure uniform stress and help the electric shock victim get away from the power supply smoothly.

(*) 19, due to the electric shock due to spasm, fingers clenched wire, can use dry template pad under the electric shock, and then take other measures to cut off the power supply. (√)20. If the rescue time exceeds 5 hours, it can be concluded that the person who got an electric shock has died.

(*) three. Multiple choice questions: (5 points for each small question, ***25 points) 1. People who walk within the radius of (D) m with the grounding current as the center bear the step voltage between their feet. A, 1000 B, 100C, 50 D, 202 and 50mA currents belong to (c).

A, induced current b, get rid of current c, lethal current 3, the following current path, the most dangerous is (a). A, left hand-chest B, left hand-foot C, right hand-foot D, left hand-right hand 4. Human body resistance is generally considered in (c).

A, 1- 10ωB,10ω c, 1kω-2kωD, 10kω-20kω5 as shown in the figure below, the three hole socket (facing forward) is D.

A, yellow b, green c, light blue d and green/yellow bicolor 7. In maintenance work, once closed, it can be sent to the open circuit of the workplace.

2. Primary school students' knowledge of safe electricity use.

1. Don't touch the power switch and electrical appliances with wet hands to avoid ().

2. Don't connect too many plugs in the same socket, because when the load of the wire socket is too large, it is easy to cause wires ().

3. Don't touch the electrical switch when taking a bath, because water is easy to conduct electricity, so in case of leakage, it is easy to cause ().

4. When you want to check or repair electrical appliances, please turn on the power supply first ().

5. Don't insert metal objects into the socket at will, because metal objects are easy to conduct electricity, and the current will be conducted to you along the metal, causing the danger of ().

6. If there are children at home, please don't let the children use the socket as a toy, and don't insert your fingers into the socket, so as not to cause ().

7. Household appliances and wires should be avoided in damp places, and don't stand in the place () when starting the appliance.

8. Before use, the plug must be completely inserted into the socket, because if the contact is poor, it will cause the situation of ().

9. When the electric heater and iron are not in use, unplug them and cut off the power supply, so as not to cause a fire.

10. When purchasing electrical appliances, choose energy-saving and up-to-standard electrical appliances; Before using new electrical appliances, be sure to read this book carefully to understand the correct use. The voltage and current of new electrical appliances should be consistent with the power supply.

2. True or False (3* 10=30 points)

1, touch the power supply with a certain part of the human body. - ( )

2. Plug in the power plug with wet hands.

3, all kinds of electrical appliances, plugs and sockets, wires, lamps are damaged, aging phenomenon, can also be used. - ( )

Pupils can play with electricity in private. - ( )

5. Metal products can directly contact the power supply. - ( )

6. The wires on the roadside are all dropped, so you don't have to avoid them when you see them. - ( )

7. Don't bake clothes on electric heating equipment. - ( )

8. Take care of power facilities and don't fly kites near overhead wires and distribution transformers.

- ( )

9. Don't hang the clothesline on the wire. - ( )

10. It is strictly forbidden to set up power grids without permission, and to guard against theft, hunt, catch rats and fish with electricity. - ( )

Three. Short answer questions (10*4=40 points)

1. Why can't wet hands touch the live switch?

2 What should I do if there is an electrical fire?

3. Primary and secondary school students' knowledge of safe electricity use multiple-choice questions (the more the better)

Don't overload electricity, replace the worn power cord in time, and use special lines for high-power electrical equipment such as air conditioners, ovens and electric water heaters.

2. It is forbidden to use copper wire, iron wire and aluminum wire instead of fuse. Choose a fuse that adapts to the conductor load, and don't be bold at will.

3, must be installed to prevent leakage of residual current action protector (commonly known as leakage protector). After the protector acts, it is necessary to find out the reason and shut it down after troubleshooting. It is forbidden to dismantle or bypass the leakage protector.

4, can't use wet hand pull, plug in the power plug, more can't use wet cloth to wipe the charged lamp holder, switch, socket, etc.

5, can't use the method of "one line at a time" to install electric lights.

6, household appliances connected to the power supply, you must use a disconnectable switch or plug, do not directly insert the wire into the socket hole.

7. Don't pull wires and plugs, or even move household appliances. When moving electrical appliances, be sure to disconnect the power supply.

8. Ground the wire correctly. Do not connect the ground wire to water pipes, gas pipes, telephone lines, broadcast lines or cable TV lines.

9. Flammable and explosive articles (such as gas, gasoline, banana oil, etc.) cannot be placed around the heating appliance. Cut off the power supply and unplug the electrical appliance after use.

10, it is forbidden to set up power grids for theft prevention, hunting, rat catching and electric fishing.

1 1, laying wires, connecting electrical equipment, and installing and repairing electrical appliances, you should find qualified units and personnel, and don't blindly install or invite unqualified units and personnel to operate.

Second, how to prevent common electricity accidents

1. Don't connect the wires without permission.

2. Don't climb poles, transmission towers, transformer stations, and don't climb fences or fences of power facilities.

Don't fish under the wire.

4. All switches, knife switches and fuse boxes must be covered.

5. When replacing fuses, overhauling or moving electrical appliances, the power supply must be cut off. Don't risk live operation.

6. When using electric iron, hair dryer, electric stove and other household electric heaters, don't leave or bake clothes on the electric heating equipment.

7, found that electrical equipment smoke or smell, to quickly cut off the power supply for inspection.

8. It is forbidden to tie livestock, rope and dry goods on the wire poles. The clothes hanger should keep a safe distance from the wire, and don't put the clothes drying rod on the wire.

9. The outdoor antenna of the TV set must be installed firmly and reliably, lower than the nearby lightning rod, and at the same time pay attention to stay away from the power cord.

10, don't fly kites or shoot birds near overhead power lines and distribution transformers, and don't throw things at them.

1 1. Use qualified electrical products. Don't buy or use fake and inferior electrical appliances, wires, trunking (pipes), switches, plugs and sockets.

12, electric water heaters should have reliable electric shock prevention devices.

13, when the power switch shell and wire insulation are damaged or incomplete, so that the live part is exposed, you should immediately find an electrician to repair it.

14. Don't approach the grounding wire and grounding body of high-voltage poles, iron towers and lightning rods in thunderstorm weather.

15. Discovered disconnection, if it is unknown whether it is charged, it is regarded as charged; Keep a distance of more than 8 meters from the landing point of the conductor, and report to the electrician or electric power department in time.

16. When it is necessary to cut off the low-voltage power line in an emergency, insulated electrician tongs or tools with insulated handles must be used.

17, motor vehicles or field operations, it is forbidden to collide with telephone poles and stay wires.

4.20 14 What is the common sense of safe electricity use in the winter vacation safety knowledge test for primary school students?

1) Know the main power switch and learn to turn off the main power in an emergency.

2) Do not touch or test the inside of the power socket with hands or conductive objects (such as iron wire, nails, pins and other metal products).

3) Don't touch the appliance with wet hands or wipe it with a wet cloth.

4) Unplug the electrical appliance after use; Do not pull the wire forcibly when plugging and unplugging the power plug to prevent the insulation layer of the wire from being damaged and causing electric shock; The insulation layer of the wire is peeling off, so it is necessary to replace the wire in time or wrap it with insulating tape.

5) If someone gets an electric shock, try to turn off the power in time; Or use dry wooden sticks and other things to separate the electric shock victim from the charged electrical appliances, and don't save people directly by hand; Younger students should ask adults for help in this situation, and don't handle it by themselves to prevent electric shock.

6) Do not disassemble or install the power cord, socket and plug at will. Even if it is as simple as installing a light bulb, it should be turned off first and carried out under the guidance of parents.

7) In case of smoke, sparks and burning smell. If it is found to be in use, the power switch should be turned off immediately and stopped.

8) Cut off the power supply before going to bed or when leaving home.

FYI

5. Find about 20 questions in the knowledge contest of electricity safety.

1. Multiple choice questions 1. Children under the age of _ _ can't ride bicycles on the road like adults.

Because there are many cars on the road, it is easy to get into danger. A. 10 years old B. 1 1 0 √ C. 12 years old 2. Never take _ _ _ in the way when riding a bike; Don't spread your hands when riding a bike.

√ A. Motor vehicle B. Bicycle C. Pedestrian 3. When the train is running, don't stick any part of _ _ _ out of the window and don't walk around to avoid injury or burns. √ A. Body B. Articles C. Food 4. Pay attention to _ _ when the subway arrives or departs, so as to avoid getting off or passing the station in advance.

A. others say B. broadcast √ C. broadcast 5. Ships sailing on water are greatly influenced by _ _ conditions. A. Health B. Health C. Climate 6. When an electrical appliance catches fire, it must first be _ _.

A call the police at home √B cut off the power supply; c put out the fire with a fire extinguisher; 7. Where should I put the fireworks? Flammables piled up on the grass in crowded places. 8. The clothes are on fire and need _ _. A threw herself on the ground and rolled √B patted the fire on her body with her hand. 9. When the oil is on fire, apply _ _.

√A foam extinguisher B dry powder fire extinguisher C 12 1 1 fire extinguisher 10. Light mosquito-repellent incense in _ _ _ _. A window b table √C open space 1 1. During the football match. A. Wear football shoes with nails √ B. Wear ordinary football shoes 12. Wear _ _. √ a.a. sportswear B. dress 13. On the physical education class. _ _ √ A. You can bring hard metal objects such as pins and knives √ B. Don't bring anything unrelated to physical education class 14. Novice swimmer _ _ √ A. You should prepare some protective equipment. B. You can swim directly in the water 15. When practicing on the horizontal bar and parallel bars, you should put _ _ √ a. ..

√A, high quality B, spontaneous C, white open D, spring 17. Cold drinks have _ _ _ effect. A, getting sick √B, relieving summer heat c, moistening throat d, refreshing 18. Food poisoning is _ _.

√A, extremely dangerous B, generally dangerous C, no big deal D, terrible 19. Pay attention to the consciousness of _ _ _ at ordinary times. √ A. Self-protection B. Poisoning C. Eyes D. Body 20. The remaining _ _ _ food can't be eaten.

A, soon √ B, too long c, short 2 1. When you go for an outing by means of transportation, you should A, go to B, don't worry, take your time to C, choose a random D, and act quickly as planned. When a fire breaks out, you should put it out immediately. √A ran downstairs along the fire escape, B took the elevator to escape, and C jumped out of the window. 23. When is the outing usually arranged? √A, spring B, summer√ C, autumn D and winter 24. When visiting the production site, you should do A, touch the east and see the west B, play C with your classmates, walk away if you are not interested √ D, and visit as instructed. When visiting, you should be a, do whatever you want, b, watch slowly if you like √C, obey the command as planned, and come alone.

A, beach √B, construction site c, amusement park 27. Things you can't eat outside. √A, stranger B, family 28. Never be a pet, or it will be dangerous! √A, scrape B, lick 29. Climbing high is dangerous, and you will fall down if you are not careful.

A, toes √B, brain 30. Never go to the construction site to play, there are many hidden there. A, game b, treasure √C, danger 3 1. When it is predicted that the highest temperature in this city will or has reached above 0 degrees within 24 hours.

A.32b.34 √ C.35d.38 32。 When the typhoon warning signal is white, the tropical cyclone hour may affect our city. A. 12 B.24 C.36 √D.48 2. True or false 1. If you cross the road, you should walk on the right side of the road.

(√) 2. Don't stand on the expressway, open the window and shake it. (√) 3. You don't need to wear a seat belt when flying.

(*) 4. It is forbidden to carry inflammable, explosive, corrosive and radioactive articles, knives and other dangerous goods by plane. (√) 5. Go up and down in turn when entering and leaving the subway platform, and stand firm on the escalator to prevent falling.

(√) 6. Dry powder fire extinguishers are used to extinguish the initial fires of books and files, expensive equipment, precision instruments and other general substances. (*) 7. When fleeing from the fire, you should walk upright to prevent smoke.

(*) 8. When gas is used, the fire is blown out. Don't turn off the gas at once. (*) 9. If you find gas smell in the room, open the window immediately.

(√) 10. In case of fire, you can water your body to avoid scalding. (√) 1 1. Don't play in the water when swimming to avoid suffocation or injury.

(√) 12. Skill exercises should be carried out on sponge mats. (√) 13. It doesn't matter if you wear * * * sportswear and sneakers in physical education class.

(*) 14. It is best to wear football shoes with nails to participate in football matches. (*) 15. Don't bring anything unrelated to physical education class, such as pins, knives and other metals and hard objects to physical education class.

(√) 16. Fish can be eaten raw. (*) 17. Plants are green food and can be eaten at will.

(*) 18. The food processing process is unsanitary and inedible. (√) 19. Mushrooms are inedible.

(*) 20. Stay away from colorful mushrooms. (√) 2 1. Where should I bring drinking water to climb the mountain? It will be sweeter to find some mountain spring water to drink.

(*) 22. In case of an emergency during an outing, you should be calm and listen to the teacher's instructions and reach a safe place as soon as possible. (√) 23. The outing is very difficult, so you should bring more money to buy delicious food.

(*) 24. Help each other on an outing and don't let a classmate fall behind. (√) 25. I have been to this place where I went back for an outing. There is no point in going again. Don't go if you take a leave.

(*) 26. If you go to the construction site to play, there is a great possibility of injury (√) 27. Mountain climbing is not a very dangerous sport. Never bring strangers home (√) 29. Physical injury refers to being bitten by dogs, cats, snakes, etc. (*) 30. Dogs and kittens don't carry bacteria (*) 36544. The yellow rainstorm signal indicates that there will be rainstorm in this city within ten hours.

(*) 33. The red rainstorm signal indicates that in the past three hours, the rainfall in some areas of this city has reached more than 50 mm, and the rainfall may continue. (√) 34. The black rainstorm signal indicates that in the past three hours, the rainfall in some areas of this city has reached more than 80 mm, and the rainfall may continue.

(*) 35. The red high temperature signal indicates that the highest temperature in this city is expected to reach or has reached above 35 degrees within 24 hours. (√) 3. Short answer questions 1. What color is the strong lightning warning signal? Answer: red. 2. When the gale warning sounded, the average land wind force in this city.

6. Examination questions and answers of employee safety knowledge training: What are the main forms of electric shock injury?

1, two forms of low-voltage electric shock:

Single-line electric shock: People standing on the ground touch the fire line, and the current enters the human body from the fire line to the ground, forming a loop through the ground wire, causing electric shock accidents.

Double-wire electric shock: If a person standing on an insulator touches two wires at the same time, the current will enter the other wire (zero wire) from the live wire to form a loop, resulting in an electric shock accident.

Therefore, in order to use electricity safely, never touch the uninsulated live wire and the conductor connected with the live wire.

So what do we need to pay special attention to when using electricity every day? It is necessary to pay special attention to the fact that the original insulated object conducts electricity, and the charged object should not be charged.

Be careful to prevent insulation damage. (2) Keep the insulation dry, do not use wet manual switches, and do not hang clothes on wires. (3) When someone gets an electric shock, cut off the power supply first, or open the wire with an insulator such as dry wood. ④ When installing the TV antenna, be careful not to touch the wires. Electrical appliances with metal casings should be grounded. Therefore, the principle of using electricity for low-voltage charged bodies is not to touch low-voltage charged bodies.

2, two forms of high voltage electric shock

Do the students see this sign? This is a signal of high pressure danger.

High-voltage arc shock: When the human body is close to the high-voltage charged body to a certain distance, discharge will occur between the high-voltage charged body and the human body. At this time, a current passes through the human body, causing high-voltage arc to get an electric shock.

Step voltage shock: the high-voltage transmission line falls on the ground, and there are voltages at various points on the ground at different distances from the broken line. When people are close to the fracture, the feet are in different positions from the fracture, so there is a voltage (step voltage) between the feet. At this time, the current passes through the human body, causing the step voltage to get an electric shock.

So in order to use electricity safely, don't go near high-voltage charged bodies.

Electric shock first aid:

First of all, you can't directly pull the electrocuted person, otherwise the rescuer will get an electric shock. You should cut off the power supply as soon as possible, or pick up the wires with a dry wooden stick. , in order to quickly disconnect the power of the electric shock. In case of fire, cut off the power supply first, and do not splash water with electricity to put out the fire.

I hope I can help you, and I hope to adopt it! ! Thank you! !

7. What does power safety knowledge mean?

"Electric Power Safety Knowledge" comprehensively introduces safety education, common sense of safe electricity use, on-site emergency rescue knowledge, safety appliances, fire prevention and extinguishing knowledge, and provides related exercises.

Foreword Chapter I Safety Education Section I Importance of Safety in Production Section II Accidents Section III Safety Responsibility Section IV Safety in Production and Legal System Section V Familiar Review of Safety Documents Implementation and Safety Warning Chapter II Common Sense of Safe Electricity Use Section I Harm of Current to Human Body Section II Safety Current, Specification of Voltage Section 3 Electrical Safety Distance Section 4 Electric Shock Mode of Human Body Section 5 Electrostatic Hazard and Safety Protection Section 6 Technical Measures to Prevent Personal Electric Shock Section 7 Review of Electrical Working Tickets Chapter 3 On-site First Aid Knowledge Section 1 Electric Shock First Aid Section 2 Cardiopulmonary Resuscitation Method Section 3 Trauma Rescue Section 4 Burn First Aid Section 5 Departments, Poisoning, Drowning First Aid Section VI Frostbite First Aid Section VII Animal Bite First Aid Review Chapter IV Safety Appliances Section I Function and Classification of Safety Appliances Section II Basic Safety Appliances Section III Auxiliary Safety Appliances Section IV Protective Safety Appliances Section V Safety Colors, Safety Signs and Language Warning Signs Review Questions Chapter V Fire Prevention (Explosion) and Fire Extinguishing Knowledge Section I Fire Prevention Facilities and Equipment Section III Fire Prevention (Explosion) and Fire Extinguishing Appendix Problem Solving Chapter I Safety Education Chapter II Common Sense of Safe Electricity Use