191) A closed tank is completely filled with an oil. If it is made to move with a horizontal acceleration, then the pressure at the back end will be more than that at the front end.

192) The mass of 2.5 m³ of a certain liquid is 2 tonnes. Its mass density is

193) The dynamic viscosity of the liquid __________ with rise in temperature.

194) When a vertical wall is subjected to pressures due to liquid on both sides, the resultant pressure is the __________ of the two pressures.

195) When the Mach number is between __________ the flow is called super-sonic flow.