Related Questions

In a city 40% of the people have black hair, 25% have black eyes and 10% have both black hair and black eyes. What percentage of the people in the city has neither black hair nor black eyes?
A 35
B 40
C 45
D 50
In a certain city 40% of the people have black hair, 25% have black eyes and 10% have both black hair and black eyes. What percentage of the people in the city have neither black hair nor black eyes?
A 35
B 40
C 45
D 50
The safe speed for a train rounding a corner is proportional to the square root of the radius . If the safe speed for a curve of radius 49 meters is 28 km/h. The safe speed for a curve of radius 64 metes is :
A (256/7)km /h
B (256/7) km /h
C 32 km /h
D 23 km /h
In case of foundations on black cotton soils, the most suitable method to increase the bearing capacity of soils is to
A Increase the depth of foundation
B Drain the soil
C Compact the soil
D Replace the poor soil
In the plate loading test for determining the bearing capacity of soil, the size of square bearing plate should be
A less than 300 mm
B between 300 mm and 750 mm
C between 750 mm and 1 m
D greater than 1 m
The frictional torque transmitted in a flat pivot bearing, considering uniform wear, is (where μ = Coefficient of friction, W = Load over the bearing and R = Radius of bearing surface)
A $$\frac{1}{2}$$μWR
B $$\frac{2}{3}$$μWR
C $$\frac{3}{4}$$μWR
D μWR
When the bearing is subjected to large fluctuations of load and heavy impacts, the bearing characteristic number should be _________ the bearing modulus.
A 10 times
B 5 times
C 15 times
D 20 times
If p = bearing pressure on projected bearing area, Z = absolute viscosity of lubricant and N = speed of journal, then the bearing characteristic number is given by
A $$\frac{{{\text{ZN}}}}{{\text{p}}}$$
B $$\frac{{\text{p}}}{{{\text{ZN}}}}$$
C $$\frac{{\text{Z}}}{{{\text{pN}}}}$$
D $$\frac{{\text{N}}}{{{\text{Zp}}}}$$
Engineering news formula for obtaining safe bearing capacity of pile for drop hammer, is,
A Q = Wh/6 (S + 2.5)
B Q = Wh/2.5 (S + 6)
C Q = (W × 6)/h (S + 2.5)
D Q = (W × 2.5)/6 (S + h)
The black cotton soil
A Undergoes volumetric changes
B Swells excessively when wet
C Shrinks excessively when dry
D All the above

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