Related Questions

A semicircular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi circular disc and horizontal surface is µ. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will
A Remain horizontal
B Slant up towards direction of pull
C Slant down towards direction of pull
D None of the above
If is the diameter of upper circular portion, the overall depth of New Egg shaped sewer section, is
A 1.250 D
B 1.350 D
C 1.425 D
D 1.625 D
An egg shaped section of sewer
A Is economical than circular section
B Provides self cleansing velocity at low discharges
C Is more stable than circular section
D Is easy to construct
If is the diameter of upper circular portion, the overall depth of a standard egg shaped section, is
A 1.15 D
B 1.25 D
C 1.5 D
D 1.75 D
The hydraulic mean depth (HMD) for an egg-shaped sewer flowing two-third full is
A Equal to HMD when flowing full
B Less than HMD when flowing full
C Greater than HMD when flowing full
D None of the above
If the flame of a miner's safety lamp in the upper layers of the sewer forms an explosive, the sewer certainly contains
A Hydrogen sulphide
B Carbon dioxide
C Methane
D Oxygen
Cheese, egg and beef sandwiches were made for a picnic in a ratio of 5 to 7 to 8. If a total of 120 sandwiches were made, how many egg sandwiches were made ?
A 15
B 30
C 38
D 42
If it requires 10 minutes to boil an egg then how many minutes will it take to boil 10 egg simultaneously ?
A 10
B 20
C 100
D 18.67
The ratio of the diameter of a circular section and the side of a square section hydraulically equivalent, is
A 1.095
B 1.085
C 1.075
D 1.065
A circular sewer section is preferred to because
A It is cheaper in construction
B It provides maximum area for a given perimeter
C It provides maximum hydraulic mean depth
D All the above

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