Safety knowledge contest single-choice test question bank with answers (4)

126. In order to prevent welders from being harmed by arc light, what color clothes should we wear? (A)

A. Black

B. White

C. Gray

127. Personnel engaged in flammable and explosive operations should wear ( ) to prevent static electricity hazards. (A)

A. Work clothes containing metal fibers

B. Oil-proof work clothes

C. Synthetic fiber work clothes

128. Most of the electric shock accidents result in personal injury or death. (A)

A. The human body receives electric current and is shocked

B. Burns

C. Electric shock

129. Danger Safe passages must be set up in the workplace, with at least two entrances, and passages and entrances and exits should be kept clear. Doors and windows should use ( ). (C)

A. Push-pull type

B. Inward opening type

C. Outward opening type

130. The following Which situations are not illegal operations? (C)

A. Wear hard-soled shoes when working at heights

B. Dismantle lighting facilities on equipment at will

C. Special operation certificate holders operate independently

131. Safe passages must be set up in dangerous workplaces. Passages and entrances should be kept clear, and there should be no less than () entrances and exits. (A)

A. 2

B. 3

C. 4

132. Night shift labor refers to (). (B)

A. From 21:00 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. 20:00 on the same day to 4:00 on the next day

133. The labels and signs of hazardous chemicals must comply with national regulations. (B)

A. Trademark

B. Packaging

C. Color

134. When loading and unloading hazardous chemicals, what are the Prevent impact, friction, dragging, and avoid using ( ) tools to load and unload facilities that prevent sparks. (C)

A. Rubber

B. Plastic

C. Metal

135. When vibrating concrete, the vibrator should wear(). (A)

A. Insulated shoes

B. Cloth shoes

C. Leather shoes

136. For cast-in-place concrete structures with spans greater than For an 8-meter beam, the required concrete strength should reach the design strength when removing the formwork. (C)

A. 80

B. 90

C. 100

137. The concrete vibrator must be inspected before use. () It can be used only after inspection and confirmation. (A)

A. Electrician

B. Technician

C. Construction worker

138. For load-bearing buildings with a span greater than 8 meters Structure and formwork removal concrete strength must reach the design strength (). (C) A. 80 Principles, which of the following does not belong to the four don't let go principles (). (B)

A. Don’t let it go until the cause of the accident is found out

B. Don’t let it go until the safety officer is dealt with

C. The person responsible for the accident The surrounding people will not be spared if they are not educated

140. Which of the following situations fall within the scope of work-related injuries ().

(B)

A. Injury or death caused by drunkenness

B. Injury due to work in the workplace during working hours

C. Self-mutilation or suicide

141. What kind of water below is suitable for watering flowers and washing vegetables? (A)

A. Rice washing water

B. Laundry water

C. Dishwashing water

142. To protect the water environment, we should choose to use () washing powder. (B)

A. Ordinary

B. Phosphorus-free

C. Cheap

143. Protection of wild animals and their living environment , prohibiting illegal hunting or destruction. (B)

A. Any unit

B. Units and individuals

C. Individuals

144. Among the following natural resources, Non-renewable natural resources are (). (C)

A. Water

B. Petroleum

C. Land

145. Causing the loss and destruction of land resources The main reason is (). (A)

　A. Indiscriminate deforestation and indiscriminate cultivation of grassland, resulting in serious water and soil erosion and expansion of deserts

　B. Natural reasons

　C. Climate reasons

146. When is World Environment Day every year? (C)

A. May 6

B. March 21

　C. June 5

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

A. Garbage cleaning and disposal

B. Afforestation

C. Indiscriminate deforestation

148. National unification The toll-free hotline for reporting environmental issues is (). (C)

A. 12315

B. 12388

C. 12369

149. To reduce “white pollution” we should ( ). (A)

A. Consciously do not use or use less refractory plastic packaging bags

B. Littering plastic waste

C. Use plastic products as much as possible

150. From the perspective of protecting the environment and saving resources, it is best for us to choose () among the following three pens for writing. (B)

A. Mechanical pencil

B. Ballpoint pen

C. Pencil

151. The new Environmental Protection Law stipulates that the national basic national policy; everyone has the obligation to protect the environment. (A)

A. Environmental protection units and individuals

B. Environmental protection enterprises and individuals

C. Environmental protection priority government departments and social groups

152. () The people's government should incorporate environmental protection into national economic and social development plans. (B)

A. County level

B. County level or above

C. Prefecture level

153. What season is indoors? Air pollution is the most serious? (B)

A. Spring

B. Summer

C. Winter

154. Low carbon is refer to(). (B)