A core of 10 cm height and 5.4 cm diameter is subjected to diametrical point loading. The ram of the hydraulic jack has a cross sectional area of 12.5 cm2 and the dial gauge reading is 3 MPa. What is the point load strength?
A. 1.63 MPa
B. 30 MPa
C. 37.5 MPa
D. 68.7 MPa
Answer: Option B
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Related Questions on Rock Mechanics and Roof Supporting
Which of the following is not considered in Bieniawski's geo-mechanics classification?
A. rock strength
B. RQD
C. ground water condition
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What is the expected range of LBC of a 2.5 m long, 15 cm diameter timber prop?
A. 5 - 10 KN
B. 15 - 20 KN
C. 50 - 60 KN
D. 120 - 130 KN
A. point load test
B. servocontrolled test
C. displacement test
D. post peak test
A. 1.25
B. 1.50
C. 2.25
D. 1.00
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