ESE ME 2021 : Technical Quiz-4

When can a Piezometer not be used for pressure measurement in pipes ?

The head of water required for Pelton wheel is ___________.

The contact ratio is the ratio of arc of contact to the ____________

When the friction lining is new, the wear varies ______________.

The unit of thermal diffusivity is

A fan consumes 50 W of electric power and has an air discharge of 0.25 kg/s, the maximum air outlet velocity is close to

Air at 27 °C and 100 kPa enters in a steady flow to a nozzle at a velocity of 100 m/s. If the inlet area of the nozzle is 0.5 m², what is the mass flow rate through the system

In refrigerant system thermostatic expansion valve is used to maintain _______.

The gas remaining in the burette after absorption of CO₂, O₂ and CO in an Orsat apparatus experiment is taken as