1.
Roller chain hoists of greater than --------- Capacity shall not be used in overhead hoisting system
Correct Answer
B. 2T
Explanation
Roller chain hoists of greater than 2T capacity shall not be used in overhead hoisting systems. This means that hoists with a capacity higher than 2 tons should not be used for lifting loads in overhead hoisting systems. Using hoists with capacities higher than 2 tons in such systems can lead to safety hazards and potential accidents. It is important to adhere to the recommended capacity limits to ensure the safe operation of the hoisting system.
2.
The maximum deflection permitted at rated load is
Correct Answer
B. 1 mm in 1 Metre span
Explanation
The maximum deflection permitted at rated load is 1 mm in 1 Metre span. This means that when the load is applied to the structure, the maximum amount it can deflect or bend is 1 mm over a distance of 1 meter. This restriction ensures that the structure remains within acceptable limits of deformation and maintains its integrity and functionality.
3.
As per TML standard Periodic inspection shall be carried out for hoisting system in every
Correct Answer
B. Month
Explanation
As per TML standard, periodic inspections are required to be carried out for hoisting systems every month. This ensures that the hoisting system is regularly checked for any potential issues or malfunctions, allowing for timely maintenance and repairs. Conducting inspections on a monthly basis helps to ensure the safety and efficiency of the hoisting system, as any problems can be identified and addressed promptly, reducing the risk of accidents or breakdowns.
4.
The total weight that is allowed to be lifted by a mobile crane is x% of the capacity of the crane
Correct Answer
A. 80%
Explanation
The correct answer is 80% because it states that the total weight allowed to be lifted by a mobile crane is a percentage of the crane's capacity. Therefore, the maximum weight that can be lifted is 80% of the crane's total capacity.
5.
A crane lift shall be considered critical, if
Correct Answer
D. Anyone of the above exists
Explanation
A crane lift is considered critical if any one of the following conditions exists: the load lifted is greater than 2 MT, the load exceeds 85 percent of the capacity, or the load is required to be lifted by more than one crane.
6.
The maximum travel distance for means of escape in offices,manufacturing, and warehouses where sprinkler protection is provided
Correct Answer
B. 250ft
Explanation
The maximum travel distance for means of escape in offices, manufacturing, and warehouses where sprinkler protection is provided is 250ft. This means that individuals should be able to reach a safe exit within this distance in case of an emergency. Sprinkler protection helps to control and extinguish fires, reducing the risk to occupants and allowing for a slightly longer travel distance. However, exceeding this distance may increase the time it takes for individuals to evacuate, potentially putting their safety at risk.
7.
Incident investigation for an accident shall be completed in how many days
Correct Answer
A. 7
Explanation
The incident investigation for an accident should be completed within 7 days. This timeframe allows for a prompt and thorough examination of the incident, ensuring that all relevant information is gathered and analyzed. Completing the investigation within this timeframe also enables timely implementation of any necessary corrective actions to prevent similar accidents in the future.
8.
Safety harness belt is required for working at height greater than or equal to-
Correct Answer
C. 1.8m
Explanation
A safety harness belt is required for working at a height greater than or equal to 1.8m. This is because at this height, there is a significant risk of falling and potential injury. The safety harness belt is designed to secure the worker and prevent them from falling, providing an additional layer of protection. By wearing the harness, the worker can safely perform their tasks at heights, minimizing the risk of accidents and ensuring their safety.
9.
What shall be the height of top railing from platform?
Correct Answer
C. 1050mm
Explanation
The height of the top railing from the platform should be 1050mm. This measurement ensures that the railing is at an appropriate height to provide safety and prevent falls. It is important to have a sufficiently high railing to protect individuals using the platform and to comply with safety regulations.
10.
What is the safe voltage rating for lamps used in confined spaces
Correct Answer
D. 24v
Explanation
The safe voltage rating for lamps used in confined spaces is 24v. This lower voltage rating ensures that there is less risk of electrical shock or fire in such enclosed areas. Using a higher voltage rating could pose a safety hazard due to the limited space and potential for heat buildup. Therefore, it is important to use lamps with the appropriate voltage rating to maintain safety in confined spaces.
11.
ELCB is used for protecting
Correct Answer
D. All the above
Explanation
The correct answer is "All the above." ELCB (Earth Leakage Circuit Breaker) is a safety device used to protect equipment from excess current damage, protect equipment by leaking the excess current, and protect humans from electrical shock. It works by detecting any leakage of current to the earth and quickly interrupting the circuit to prevent any harm. Therefore, all the options mentioned are valid reasons for using an ELCB.
12.
Class B helmets are industrial helmets used for
Correct Answer
B. Protecting head from impacts
Explanation
Class B helmets are industrial helmets specifically designed to protect the head from impacts. These helmets are made with a hard outer shell and a cushioning material on the inside to absorb and distribute the force of an impact, reducing the risk of head injuries. They are commonly used in industries where there is a potential for falling objects or other impact hazards. These helmets do not provide protection against electric shocks or chemical hazards, and they are not limited to welding works only.