Mine Supports And Strata Control - Study Mode
[#151] The smallest absolute value of a parameter that can be measured by a monitoring instrument.
Correct Answer
(C) Least count
[#152] Most of the Indian coal deposits occurs as
Correct Answer
(B) Bituminus
[#153] Detection of any cracks in roof or sides or signs of weight on supports comes under
Correct Answer
(A) Visual test
[#154] The support used in sound roof with minimum lateral roof movement is
Correct Answer
(A) Chock type
[#155] The timber prop is strongest when load acts
Correct Answer
(A) Parallel to its length