Long-hole drilling with crater blasting is used for the construction o – McqOptions

MCQOPTIONS

1.	Long-hole drilling with crater blasting is used for the construction of
A.	winze
B.	shaft
C.	raise
D.	decline
Answer» D. decline

Discussion

No Comment Found

Related MCQs

When a double ended ranging drum shearer cuts coal in a longwall face,
The three segments, whose synchronous functioning is essential for GPS operations, are
Apart from mining of coal, the longwall mining method has been practiced for mining the deposits of
Nystagmus is a miner’s disease associated with
A dump truck powered by 350 kW engine is running at a speed of 35 km/h. Considering the transmission efficiency of the truck as 85%, the rim pull of the truck in kN is
Equipment used in mining of placer deposits is
The roof bolt that follows the principle of point anchorage is
The equipment that is NOT used in hard rock metal mining drivage is
As per the Indian Electricity Rules 1956, the maximum permissible length of a flexible cable used with an electric rope shovel in m is
In a surface mine, sound pressure level at a location generated by operation of a dozer and a drill respectively are 80 dBA and 60 dBA, when operated independently. The sound pressure generated by the dozer compared to the drill is higher by a factor of