Mine Ventilation MCQs Questions & Answers | Mining Engineering

A. mm of kg

B. mm of Hg

C. mm of Hg²

D. mm of cm

A. $${P_1}{V_1} = {P_2}{V_2} = {\text{Constant}}$$

B. $${V_1}{V_2} = {T_1}{T_2} = {\text{Constant}}$$

C. $$R \propto \frac{1}{D}$$

D. $$\frac{{{V_2}}}{{{V_1}}} = \frac{{{T_2}}}{{{T_1}}} = {\text{Constant}}$$

A. Boyle's law

B. Charle's law

C. Graham's law

D. Ohm's law

A. 30°C

B. 31°C

C. 33.5°C

D. 35°C

A. MSA

B. Drager

C. Siebe German Co.

D. EMCOR

A. 5.5

B. 11.7

C. 14

D. 29

A. 0.84

B. 0.74

C. 0.94

D. 0.99

A. rotation

B. flow in one directioin

C. reversal

D. all of these

A. gas detection

B. gas analysis

C. proto detector

D. all of these

A. heavy

B. floating

C. light

D. poisonous