SSC JE Mechanical Engineering 27th Jan 2018 Shift-2

Instructions

For the following questions answer them individually

Question 191

A Pelton wheelwith single jet rotates at 600 rpm. The velocity of the jet from the nozzle is 100 m/s. If the ratio of the vane velocity of jet velocity is 0.44, whatis the diameter of the Pelton wheel?

Video Solution
Question 192

A 1.0 m long modelofa ship is towed at a speed of 81 cm/s in a towing tank. To what speed of the ship, 64 m long doesthis correspond to?

Video Solution
Question 193

The flow which neglects changesin a transverse direction is known as

Video Solution

Question 194

The region between the separation streamline and the boundary surface of the solid body is known as

Video Solution
Question 195

Forsimilarity, in addition to models being geometrically similar to prototype, the following in both cases should also be equal

Video Solution
Question 196

In a single casing, multi-stage pump running at constant speed, the capacity rating is to be slightly lowered. It can be done by

Video Solution

Question 197

The specific speed of turbine is defined as the speed of a unit

Video Solution
Question 198

If A and v stand for head and velocity and suffixes s,dand f for suction, delivery and friction, the manometric headof a centrifugal pump is equal to
A] $$h_s + h_d$$
B] $$h_s + h_d + h_f$$
C] $$h_s + h_d + h_f + \frac{v_s^2}{2g}$$
D] $$h_s + h_d + h_f + \frac{v_d^2}{2g}$$

Video Solution
Question 199

The maximum efficiency of a Pelton wheel working under a constant head and discharge with the increase in power

Video Solution

Question 200

The ratio of actual work available at the turbine to energy imparted to the wheelis called

Video Solution
cracku

Boost your Prep!

Download App