According to Taggart's rule for selecting between a gyratory crusher and a jaw crusher; the later should be used, if the hourly tonnage to be crushed divided by the square of the gape expressed in cm is less than

ANS:B - 0.0184

According to Taggart's rule for selecting between a gyratory crusher and a jaw crusher, the latter (jaw crusher) should be used if the hourly tonnage to be crushed divided by the square of the gape (the width of the jaw opening) expressed in centimeters is less than 0.0184. So, the correct answer is 0.0184.