Are you interested in purchasing the entire website? If so, we will include an additional premium domain (freetimelearn.com) at no extra cost along with this domain.
Mail : freetimelearn@gmail.com
WhatsApp : +919966463846
Correct Answer : higher; higher
Explanation : Because of the gear system, the two-stage turbine speed is higher than the shaft speed of the pumps and turbine is smaller. It will lead to higher turbine efficiency and higher pump efficiency.
Correct Answer : Option (A) : decoy flare
Explanation : Decoy flare is an infrared countermeasure taken by airborne vehicles against homing infrared missiles to divert its attention from its target. It is not a kind of tactical missile.
Correct Answer : Option (B) : Thixotropic
Explaination : Thixotropic fluids become thinner (or less viscous) over time when adequate shear stresses are applied on it. A dilatant material has increasing viscosity with the rate of shear strain. A Newtonian fluid is a fluid in which the viscous stresses arising from its flow is linearly proportional to the local strain rate. Non-Newtonian fluids are those fluids that doesn’t obey Newton’s law of viscosity (which states that the shear stress between two adjacent fluid layers is proportional to the negative value of velocity gradient between those two layers).
Correct Answer : Option (B) : Decrease in density impulse
Explaination : Density impulse is the specific impulse of the propellants multiplied by its density. Addition of small inert solid particles will increase the density of the propellant and hence lead to improved impulse density. This also means that the volume required to store the propellants is lesser and the rocket size becomes smaller. It will lead to drag reduction (since the surface area is lesser) under atmospheric operating conditions and improve speed and range of the vehicle.
