After the impact of the fall, the maximum sliding distance of the self-locking device on the safety rope shall not exceed () m.
a、0.8b、1.2
C, 1 Answer: B
Analysis: After the fall impact, the sliding distance of the self-locking device on the safety lanyard is not more than 12m。
Multiple choice question] () and the subcontractor must enter into a temporary electricity management agreement to clarify the relevant responsibilities of each party.
a. Contracting unit.
b. General contractor.
c. Construction unit.
Answer: B Analysis: Subcontracting corresponds to the general contract.
Multiple choice] The highest () value in the middle of the vertical distance between each operation position in the high-altitude operation area and the corresponding fall height datum.
a. Large. b. Small.
c. Beginning. Answer: a
Analysis: For operators, when people fall, the ground may be uneven. The fall height datum mentioned in the above standard refers to the horizontal plane that passes through the lowest fall landing point. The so-called lowest drop landing point refers to the lowest place that is likely to fall when falling on the operating position. This can be seen as the maximum drop height. Therefore, the measurement of the working height at height is based on the maximum value of the vertical distance from each operating position to the corresponding fall datum.
Multiple choice question] Cantilever scaffolding, which can be erected in () ways.
a、4b、3
C, 5 Answer: B
Analysis: Cantilever scaffolding, there are 3 ways to erect it, and the most commonly used cantilever scaffolding generally has two kinds: one pick per layer and multi-layer cantilever.
Multiple choice question] When working at height, it is strictly forbidden (), and no illegal operation is allowed.
a. Stay. b. Speech.
c. Sleep. Answer: c
Analysis: When working at height, fighting, sleeping, climbing up and down poles, jumping and volleying without safety belts are all illegal operations.
Multiple choice question] The distribution room to the main body of the structure is buried in the ground, and the burial depth is () m. The cable is evenly paved with () mm thick fine sand up and down, left and right, and the top is covered with red machine bricks for protection, and backfilled with fine soil.
a、0.7,50
b、0.7,70
c、0.5,50
Answer: A analysis: the cable of the distribution room - the pump room is protected by string steel pipes on the structural floor, and the power distribution room to the main body of the structure is buried and laid, and the buried depth is 07 meters. The cable is evenly spread with 50mm thick fine sand up and down, left and right, and the top is covered with red machine bricks for protection, and backfilled with fine soil.
In the case that the equipment is far away from the installation site, in the process of transportation, one is to check whether the road surface is smooth; The second is to prepare sleepers, rollers, and inverted chains (check whether the parts of the inverted chain are sensitive and effective, and should not be used if there is a problem), and the tonnage of the inverted chain must be greater than the tonnage of the equipment () T or more, and it is strictly forbidden to use small tonnage inverted chains.
a、0.5b、0.1
c、1.0 Answer: a
Analysis: In the case that the equipment is far away from the installation site, we must pay attention to safety during transportation, one is to check whether the road surface is smooth, and the other is to prepare sleepers, rollers, and inverted chains (check whether the parts of the inverted chain are sensitive and effective, and should not be used if there is a problem), and the tonnage of the inverted chain must be greater than the tonnage of the equipment 0For more than 5 tons, it is strictly forbidden to use small tonnage inverted chains. During the transportation process, it is strictly forbidden to have people in front of and on both sides of the equipment, and it should be pulled smoothly. After arriving at the installation site, the roller bar and inverted chain should be removed, and the equipment should be firm before installation.
Multiple choice] The average temperature or the working environment below () is strictly forbidden to engage in high-altitude work.
a、10b、5
C, 8 Answer: B
Analysis: The objective risk factors that directly cause falls are divided into 11 types: ? a)?Wind gust force five (wind speed 8.).0m s) or more; b)?GB T4200-2008 specified in the grade or above of high temperature work; c)?Operating environment with an average temperature equal to or lower than 5; d)?Operation with contact cold water temperature equal to or lower than 12; e)?There are ice, snow, frost, water, oil and other slippery objects in the operation site; f)?The workplace is poorly lit and has poor visibility g)?The distance between the operating range and the dangerous voltage charged body is less than 17m/≤10kv;?2.0m/35kv?；?h)?The swing and foothold are not flat or only very small planes, i.e., rectangular planes less than 500mm on either side, circular planes with a diameter of less than 500mm, or planes of other shapes with similar dimensions, so that the operator cannot maintain a normal posture; i)?GB3869-1997 or above the level of physical labor intensity; j)?Presence of toxic gases or oxygen levels in the air less than 0195's operating environment; k)?The work environment that may cause various disasters and accidents, and the rescue of various disasters that occur suddenly.
True or False] In cases where it is not possible to isolate the hazardous area, partially adjustable safety devices cannot be used.
a. Correct. b. Error.
Answer: B Analysis: In cases where isolation of hazardous areas is not possible, partially adjustable safety devices can be used. As long as it is used accurately, adjusted correctly and properly maintained, it can play a role in protecting the operator.
True or False] Production and business operation units shall arrange funds for equipping labor protection equipment and conducting safety production training.
a. Correct. b. Error.
Answer: A Analysis: This is the responsibility of the employer.