The most important consideration, while designing the refrigeration system of an aircraft is that the refrigeration system
Is as light as possible
Has very high C.O.P.
Employs minimum quantity of refrigerant
Consumer minimum horse power
- Shampoos are commercially not available in the form of
- Heating of ferromagnetic materials to a temperature above Curie temperature makes it
- A gas which is collected over water becomes moistened due to water vapor, exerts its own partial pressure…
- Plastics as a material of construction suffer from the drawback of low
- Difference at any instant between the value of the controlled variable and the set point is called the
- The materials which fracture even at small strains are termed as brittle, while those materials which…
- __________ glass is used in the mercury in glass thermometer meant for measuring a temperature of 500°C.
- If the head is doubled in & centrifugal pump, the power required will increase in the ratio of
- Wohler test is a destructive test to find out the __________ strength of a prepared metal specimen.
- __________ is a special constituent of chlorophyll without which photosynthesis is not possible.
- Brass parts with high residual tensile stress at the surface are susceptible to season cracking (i.e.…
- Addition of __________ to steel does not help in improving its machinability.
- Latent heat of dry steam at atmospheric pressure is 539 Kcal/kg; which __________ with increase in the…
- The efficiency of a Carnot heat engine operating between absolute temperatures T1 and T2 (when, T1 >…
- For a thermodynamic system undergoing a process, which of the following pairs best expresses the relationship…
- Propulsion of rocket follows from the
- Out of the following, the most malleable material is
- Sub zero treatment of steel is done to
- One of the methods of purification of leach liquor is ion exchange, which involves
- Softening of hardened steel is done by its
- A spring material should have low
- Which of the following is an ore dressing operation?
- Water hammer is caused in steam carrying pipelines, because of
- __________ property of steel increases by addition of large amount of silicon in it.
- Closeness of packing is maximum in case of __________ crystal lattice.
- With increase in steam pressure, its specific volume decreases
- Pick out the wrong conversion of absolute & kinematic viscosities.
- Percentage of differential pressure lost in a Venturimeter with a tapering of 15° may be about
- Corrosion rate cannot be lowered by reducing the __________ of the corroding medium.
- Ultimate strength in tension as compared to that in shear for steel is