Safety knowledge contest question bank and answer (4)

126, in order to prevent welders from being injured by arc light, what color clothes should they wear? (1)

One, black

B, white

C, gray

127, personnel engaged in flammable and explosive operations should wear () to prevent electrostatic hazards. (1)

A. Work clothes containing metal fibers

B, oil-proof overalls

C, synthetic fiber overalls

128, electric shock accidents, the vast majority is () lead to personal injury or death. (1)

A, the human body receives current and is shocked.

B, burns

C, electric shock

129, dangerous workplaces, must set up a safe passage, not less than two entrances and exits, channels and entrances and exits should be kept clear. Doors and windows should use (). (3)

First, push-pull type

B, inward opening

C, outward opening

130, which of the following situations are not illegal operations? (3)

A. Wear hard-soled shoes when working high above the ground.

B. Dismantle the lighting facilities on the equipment at will

C. operators of special operations should operate independently.

13 1, dangerous workplaces, must set up a safe passage, the passage and the entrance should be kept clear, the entrance should not be less than (). (1)

A, 2

b、3

c、4

132, night shift labor refers to (). (2)

A. from 2 1 hour on the same day to 5: 00 the next day

B. From 22: 00 on the same day to 6: 00 the next day

C. From 20: 00 on the same day to 4: 00 on the next day

133, () and the signs of dangerous chemicals must conform to the national regulations. (2)

A. trademarks

B, packaging

C, color

134, when loading and unloading dangerous chemicals, in order to prevent collision, friction, drag, avoid using () tools for loading and unloading, there are facilities to prevent sparks. (3)

A. rubber

B, plastic

C, metal

135, concrete vibrating, vibrating personnel should wear (). (1)

First, insulated shoes

B, cloth shoes

C, leather shoes

136. For the beam whose cast-in-place concrete structure span is more than 8m, how much should the concrete strength reach the design strength when the formwork is removed? (3)

A: 80%

b、90%

c、 100%

137, concrete vibrator before use must be confirmed by () inspection qualified rear can use. (1)

First, the electrician

B, technician

C. builders

138, load-bearing structure with a span of more than 8m, the strength of concrete removed from formwork shall meet the design strength (). (3)

A: 80%

b、90%

c、 100%

139, accident treatment should adhere to the principle of four pass, which of the following does not belong to the principle of four pass (). (2)

First, the cause of the accident has not been ascertained.

B, the security officer does not handle it.

C, the person responsible for the accident and the surrounding people are not educated.

140, which belongs to the scope of work-related injuries in the following cases is (). (2)

A. casualties caused by drunkenness

B, working hours in the workplace, work-related injuries.

C. Self-mutilation or suicide

14 1. What water is suitable for reuse when watering flowers and washing vegetables? (1)

First, Taomi water

B, laundry water

C, dishwashing water

142, in order to protect the water environment, we should choose to use () washing powder. (2)

First, ordinary

B, no phosphorus

C, cheap

143, wild animals and their living environment protection, illegal hunting or destruction is prohibited. (2)

I. Any unit

B, units and individuals

C. individuals

144, the following natural resources, belongs to the non-renewable natural resources is (). (3)

I. Water

B, oil

C. land

145, the main reason for the loss and destruction of land resources is (). (1)

First, deforestation and grassland reclamation have caused serious soil erosion and desert expansion.

B, natural causes

C, climatic reasons

146, when is World Environment Day this year? (3)

A: May 6th.

B, March 2 1

C, June 5

147, () will bring a series of hazards to human survival, such as soil erosion, deterioration of atmospheric conditions, species extinction and so on. (3)

First, the garbage disposal

B. Planting trees

C. Deforestation

148, the national unified toll-free hotline for reporting environmental problems is (). (3)

a、 123 15

b、 12388

c、 12369

149, we should reduce "white pollution" (). (1)

A, consciously do not use or use less plastic packaging bags that are difficult to degrade.

B, littering plastic garbage

C, try to use plastic products.

150, from the perspective of protecting the environment and saving resources, we'd better choose the following three pens (). (2)

I. mechanical pencil

B, ballpoint pen

C, pencil

15 1, the new environmental protection law is the basic national policy of the country; Everything has an obligation to protect the environment. (1)

I. Environmental protection units and individuals

B, environmental protection enterprises and individuals

C government departments and social organizations giving priority to environmental protection

152, () The people's government should incorporate environmental protection into the national economic and social development plan. (2)

I. County level

B, above the county level

C. prefecture-level cities

153. What season is the most serious indoor air pollution? (2)

First, spring

summer

C, winter

154, low carbon means (). (2)

First, reduce carbohydrates

B, reduce carbon dioxide emissions

C, reduce carbon monoxide emissions

155, which of the following is not environmental pollution? (1)

I. Biological pollution

B, food pollution

C, noise pollution

156, the main pollutant in the cement industry is (). (3)

I. Sulfur dioxide

B, soot

C, dust

157, the surface water in China can be divided into several grades. (1)

Answer, 5

b， 10

C, 3

158, clothing and other clothing usually () have the greatest impact on human health. (3)

overcoat

shoe

C, underwear

159, the serious impact of environmental pollution (). (3)

I. Adult intelligence

B, the intelligence of the elderly

C, children's intelligence

160, the effective way to solve China's energy shortage and energy pollution to the environment is (). (3)

A. Hydroelectric power generation

B, thermal power generation

C, atomic power generation