Related Questions

India's latitudinal and longitudinal extent measured in degrees are almost the same, but its north-south extent measured in km is greater than its east-west extent. This is due to the fact that
A Longitudes are not parallel lines
B The distance between latitudes remains the same but the distance between longitudes is greatest at the Equator and nil at the poles where all longitudes join
C All longitudes with their opposites form great circles
D The earth is not a perfect sphere
The specific cutting energy used for establishing the machinability of the metal depends upon its
A coefficient of friction
B micro-structure
C work hardening characteristics
D all of the mentioned
Diffusion co-efficient of a metal in a solid solution depends upon its
A Composition
B Temperature
C Both A & B
D Neither A nor B
Corrosion involves exchange of electrons in __________ corrosion.
A Chemical
B Electrochemical
C Both A & B
D Neither A nor B
Water hammer is caused, when water flowing in a pipe is suddenly brought to rest by closing the valve. The extent of pressure thus produced due to water hammer depends on the
A Pipe length
B Fluid velocity in the pipe
C Time taken to close the valve
D All of the above
The work ratio of simple gas turbine cycle depends upon
A Maximum cycle temperature
B Minimum cycle temperature
C Pressure ratio
D All of these
The crest level of a canal diversion head work, depends upon
A F.S.L. of the canal
B Discharge perimeters
C Pond level
D All the above
The work done in an adiabatic change in a particular gas depends upon changes in the __________ only.
A Temperature
B Specific heat
C Volume
D Pressure
Faruk can do a work in 12 days and Salam can do the same work in 8 days. If Faruk , Salam and Babu work together , they can complete the work in 4 days . How many days will it take Babu to complete the work alone ?
A 16
B 20
C 24
D 32
A can finish a work in 5 days and B takes 4 days to do the same work. If the work is increased by 8 times, how many days will it take for both of them to finish the work if they work together?
A 10 days
B 15 days
C 20 days
D 25 days

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