निम्नलिखित में से किस कायांतरित चट्टान (metamorphic rock) में मौसम/अपक्षय प्रतिरोध की क्षमता सबसे अधिक होती है?

Which of the following artificial stones is produced by moulding a mixture of iron slag and Portland cement?

Enamel paint is generally prepared by adding:

Dorry's testing machine is used for which test on building stones?

The constituent compound in Portland cement that reacts immediately with water and sets first is:

Which apparatus is generally used to measure the soundness of cement due to free lime?

Among the following properties of a plasterboard, which one is INCORRECT?

Which of the following types of cement is NOT OPC (Ordinary Portland Cement) based?

Which of the following statements is INCORRECT regarding cold-rolled steel compared to hot-rolled steel?