Related Questions

_______ industry has the least power consumption per tonne of product.
A Soap
B Sugar
C Vegetable oil
D Caustic soda
One Ton of Refrigeration is equal to the refrigeration effect corresponding to melting of 1000 kg of ice---
A In 1 hour
B In 24 hour
C In 10 minutes
D In 12 hour
A refrigeration cycle is a reversed heat engine. Which of the following has the maximum value of the co-efficient of performance (COP) for a given refrigeration effect?
A Vapor compression cycle using expansion valve
B Air refrigeration cycle
C Vapor compression cycle using expansion engine
D Carnot refrigeration cycle
The most important consideration, while designing the refrigeration system of an aircraft is that the refrigeration system
A Is as light as possible
B Has very high C.O.P
C Employs minimum quantity of refrigerant
D Consumer minimum horse power
Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid used in ideal refrigeration cycle is
A Positive
B Negative
C Zero
D Infinity
Watt-hours per tonne km is usually the specific energy consumption for suburban services.
A 15 - 20
B 50 - 75
C 120 - 150
D 160 - 200
In testing a pile by load test, pile platform is loaded with one and half times the design load and a maximum settlement is noted. The load is gradually removed and the consequent rebound is measured. For a safe pile, the net settlement (i.e. total settlement minus rebound) per tonne of test load should not exceed
A 10 mm
B 15 mm
C 20 mm
D 25 mm
A one tonne refrigerating machine means that
A One tonne is the total mass of machine
B One tonne refrigerant is used
C One tonne of water can be converted into ice
D One tonne of ice when melts from and at 0°C in 24 hours, the refrigeration effect is equivalent to 210 kJ/min
For melting one tonne of cast iron
A 700 m3 air is required
B 20 kg limestone is required
C One quintal coke is required
D All the above
15- year-old Anurudh Ganesan has invented a _portable_ refrigeration system that enables doctors to transport vaccines safely and effectively. A synonym of the underlined word is :
A mobile
B molecular
C potential
D mortal

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