Related Questions

For removal of very small amounts of precipitate from large volume of water, the most suitable filter is the __________ filter.
A Plate & frame
B Shell & leaf
C Sand
D Rotary vacuum
2 large and 1 small pumps can fill a water tank in 4 hours. 1 large and 3 small pumps can also fill the same water tank in 4 hours . How many hours will it take for 3 large 4 small pumps to fill the tank?
A 2 hours
B 2.5 hours
C 3 hours
D 3.5 hours
2 large and 1 small pumps can fill a water tank in 4 hours. One large and 3 small pumps can also fill the same water tank in 4 hours. how many hours will it take for 3 large and 4 small pumps to fill the tank?
A 2 hours
B 2.5 hours
C 3 hours
D 3.5 hours
The solid brick shown is made of small square shaped bricks of side 1. when the large brick is disassembled into its component small bricks. the total surface area of all the small bricks is how much greater than the surface area of the large brick?
A 32
B 40
C 60
D 72
In a certain fashion house, which has four sizes of a specific shirt, there is one-third as many small shirts as medium shirts, and 1/2 as many large shirts as small shirts. If there are as many X-large shirts as large shirts, what percent of the shirts in the store are medium?
A 30%
B 40%
C 50%
D 60%
Most efficient and suitable dust removal equipment for removal of flyash from flue gas in a thermal power plant is the
A Gravity settling chamber
B Cyclone separator
C Electrostatic precipitator
D Bag filter
Extremely large or small volumes of fluids are generally best routed through the shell side of a shell and tube heat exchanger, because of the
A Less corrosion problems
B Flexibility possible in the baffle arrangement
C Low pressure drop
D High heat transfer co-efficient
The type of water filter normally employed/ preferred for treating small quantities of water in railway stations and individual industries is the __________ filter.
A Rapid sand
B Pressure
C Gravity
D Slow sand
One baker can bake either 2 large cakes or 35 small cakes per hour. How many bakers are needed to bake 20 large cakes and 700 small cakes in 3 hours?
A 12
B 15
C 8
D 10
A bicycle has two wheels (one large and one small) of 120 cm and 40 cm in diameters. When the large wheel makes 10 revolutions, how many revolutions does the small wheel make in that time?
A 15
B 20
C 30
D 40

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