एक तैलीय कार्यशाला (workshop) के फर्श को आदर्श रूप से निम्नलिखित में से किसका उपयोग करके साफ किया जाना चाहिए?

What is the primary step to take in case of a power failure in a workshop?

Which of the following is a critical electrical safety practice to be followed in a workshop?

To prevent the eyes from injury during arc welding, always use _______.