A.nearly 100%
B.between 75% and 99%
C.more than 50%
D.less than 50%
Related Mcqs:
- For a self locking lifting machine, the efficiency must be
- If the efficiency of a machine is to be high, what should be low?
- A single purchase crab has a handle 45 cm long and a drum of 25 cm diameter. The pinion has 30 teeth and spur has 150 teeth. The efficiency of the machine is 75%. If the maximum force that can be applied is 500 newtons, the maximum load that can be lifted will be
- Depreciation charges for a machine are thirty paise per working hour. The machine has a scrap value of Rs. 2000 and a working hour average life of 24000 hours. The purchase price of the machine would be
- The moving parts of a machine which weigh 1 tonne perform vertical simple harmonic motion with an amplitude of 2.5 cm and a period of 0.5 sec. The base of the machine weighs 3 tonnes and rests on the ground. Maximum reactions on the ground would be
- If stage efficiency is S, blade efficiency is B and nozzle efficiency in N, then
- A machine costing Rs. 8500 will have a scrap value of Rs. 300. Machines of this class have a working hour average life of 25000 hours. What will be the depreciation charge at the end of the first year if the machine is operated for a total duration of 1500 hours?
- A turbine model test with 260 mm diameter showed an efficiency of 90 percent. The efficiency that can be expected from a 1.2 m diameter impeller is
- A gas turbine cycle with regenerator has a thermal efficiency of 26%. If intercooler and reheater are also introduced what could be expected thermal efficiency
- The air standard efficiency of a turbine cycle is 57%. Which one of the following may be Carnot efficiency between the temperature limits of the cycle?
