Related Questions

The ratio of sand to gravel in a mixture is 7 : 8 while that between gravel and cement is 6 : 7. What is the ratio of sand to cement in the mixture?
A 49 : 48
B 7 : 7
C 8 : 6\
D 3 : 4
__________ conveyor is the most suitable for long distance transportation of cold, non-abrasive granular/irregular shape/fine materials.
A Bucket
B Belt
C Screw
D Apron
For making fly-ash building bricks, the following mix of fly-ash, sand and lime, is
A 80 : 13 : 7
B 70 : 20 : 10
C 60 : 35 : 5
D None of these
For the transportation of ultrafine particles, the equipment used is a........conveyor.
A Belt
B Pneumatic
C Screw
D None of these
Which is the most suitable conveyor for transportation of sticky material?
A Apron conveyor
B Belt conveyor
C Screw conveyor
D Pneumatic conveyor
A belt conveyor used for the transportation of materials can
A Run upto 1 km
B Travel at a speed upto 300 metres/minute
C Handle materials upto 5000 tons/hr
D All of the above
The popular notion that a tree's age can be determined by counting number of internal rings in its trunk is generally true. Howeevr, to help regulate the internal temperature of the tree, the outermost layers of wood of the Brazilian ash often →peel away when the temperature exceeds 95 degrees Fahrenheit, leaving the tree with fewer rings than it would otherwise have. So only if the temperature in the Brazilian ash's environment never exceeds 95 degrees Fahrenheit →elav eing the tree with fewer rings than it would otherwise have. So only if the reliable measure of the tree's age. Which of the following is an assumption on whish the argument above depends?
A The growth of new rings in a trees is not a function of levels of precipitation.
B Only the Brazilaian ash loses rings because of excessive heat.
C One day of temperatures above 95 degrees Fahrenheit will cause the Brazilian ash to lose one ring.
D The internal rings of all tress are of uniform thickness
A cement mixture is composed of 3 elements. By weight, 1/3 of the mizture is sand, 3/5 is water and the remaining 12 pounds of the mixture is gravel. What is the weight of the entire mixture in pounds?
A 60
B 80
C 90
D 180
Handling of ashes and similar materials can be done best by a __________ conveyor.
A Flight
B Drag or slat
C Belt
D Ribbon
An alternative optimal solution to a minimization transportation problem exists whenever opportunity cost corresponding to unused route of transportation is:
A Positive & greater than zero
B Positive with at least one equal to zero
C Negative with at least one equal to zero
D None of the above

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