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Mechanical Behaviour Testing Materials
1000 Mechanical Operations
Quiz 2
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Q.1
Which of the following conveyors cannot be recommended for transportation of abrasive material?
a) Apron
b) Belt
c) Chain
d) Flight
Q.2
Which of the following mechanical conveyors does not come under the division carriers?
a) Bucket
b) Apron
c) Belt
d) Screw
Q.3
Which of the following impellers is not an example of axial flow impeller?
a) Pitched turbines
b) Ruston
c) Propeller
d) Hydrofoils
Q.4
Which of the following combination of the flow pattern can be observed in an open turbine?
b) Radial only
c) Mixed
d) Radial and axial
a) Axial only
Q.5
Which of the following impeller is best suited in mixing operation in lead, rubber and plastics?
a) Flat blade turbine
b) Paddle
c) Propeller – marine
d) Anchor
Q.6
Which of the following type of paddle agitators are most commonly used?
a) Four Bladed
b) Two bladed and four bladed
c) Two Bladed
d) Three Bladed
Q.7
Which of the following is/are examples of paddle agitators?
a) Turbine agitator
b) Propeller agitator
c) Grout agitator
d) Hydrostatic agitators
Q.8
Which of the following is the correct unit of velocity gradient?
a) s-1
b) ms-1
c) m
d) m3s-1
Q.9
Which of the following is not a unit of power?
a) kgm2s-3
b) Joule
c) erg/second
d) Horsepower
Q.10
Which of the following gives the total volume of the particles?
a) Mv/Pp
b) Mv/Dp
c) Dp/ Pp
d) m/Pp
Q.11
Which of the following works principle of compression?
a) Rod mill
b) Knife cutter
c) Blake jaw crusher
d) Gyratory Crusher
Q.12
Which of the following is the correct unit of throughput?
a) Square feet per second
b) Meter square
c) Meter cube
d) Cubic feet per minute
Q.13
Which of the following is a modified fluidized bed dryer?
a) Batch fluidized bed dryers
b) Hybrid fluidized bed dryer
c) Semi-continuous fluidized bed dryer
d) Plug flow fluidized bed dryer
Q.14
Which of the following characteristic part of a fluidized system is not needed in every system designed?
a) A gas distributor
b) Heating and cooling coils
c) Plenum
d) Particle bed region
Q.15
Which of the following is the principle of mixing?
a) Centrifugal force
b) Perpendicular force
c) Shear force
d) Gravitational force
Q.16
Which of the following is not an example of axial flow impellers?
a) Hydrofoil
b) Low-level mixing impeller
c) Propeller
d) Pitched blade
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