Description : Removal of activated carbon from glycerine is done by (A) Plate and frame filter (B) Rotary vacuum filter (C) Batch basket centrifuge (D) None of these
Last Answer : (A) Plate and frame filter
Description : Which of the following is the most suitable filter for separation ofabrasive solids suspended in a corrosive liquid? (A) Sand bed filter (B) Plate and frame filter press (C) Vacuum filter (D) Batch basket centrifuge
Last Answer : (C) Vacuum filter
Description : __________ Centrifuge is normally used in sugar mills. (A) Tubular bowl (B) Disc-bowl (C) Suspended batch basket (D) Perforated horizontal basket continuous
Last Answer : (C) Suspended batch basket
Description : Where the density difference of the two liquid phase to be separated is very small (as in milk cream separator), the most suitable separator is a (A) Disc bowl centrifuge (B) Sharpies super-centrifuge (C) Batch basket centrifuge
Last Answer : (A) Disc bowl centrifuge
Description : __________ centrifuge is the most suitable for separation of non-friable crystals. (A) Tubular bowl (B) Disc-bowl (C) Perforated horizontal basket continuous (D) Suspended batch baske
Last Answer : (C) Perforated horizontal basket continuous
Description : If radius of a batch basket centrifuge is halved & the r.p.m. is doubled, then the (A) Linear speed of the basket is doubled (B) Linear speed of the basket is halved (C) Centrifugal force is doubled (D) Capacity of centrifuge is increased
Last Answer : (C) Centrifugal force is doubled
Description : Tank filter (e.g., Nutsche filter) is (A) A high pressure filter (B) A continuous filter (C) Used for small scale filtration work (D) A leaf filter
Last Answer : (C) Used for small scale filtration work
Description : __________ is used for producing a thick suspension from a thin slurry. (A) Cartridge filter (B) Rotary drum vacuum filter (C) Pressure filter thickener (D) Plate and frame filter press
Last Answer : (C) Pressure filter thickener
Description : Which of the following can be most effectively used for clarification of lube oil and printing ink? (A) Sparkler filter (B) Pre-coat filter (C) Disc-bowl centrifuge (D) Sharpies super-centrifuge
Last Answer : (D) Sharpies super-centrifuge
Description : Moisture can be removed from lubricating oil using (A) Tubular centrifuge (B) Clarifier (C) Sparkler filter (D) Vacuum leaf filter
Last Answer : (A) Tubular centrifuge
Description : Which of the following is a batch sedimentation equipment? (A) Dust catcher (B) Filter thickener (C) Dry cyclone separator (D) Rotary sprayer scrubber
Last Answer : (B) Filter thickener
Description : Moore filter is a __________ filter. (A) Leaf (B) Press (C) Rotary (D) Sand
Last Answer : (A) Leaf
Description : A filter press is (A) A batch filter (B) Not suitable, if the liquid is the main product (C) Having prohibitively high maintenance cost (D) Not suitable for wide range of materials under varying operating conditions of cake thickness and pressure
Last Answer : (A) A batch filter
Description : The speed of a rotary drum vacuum filter may be about __________ rpm. (A) 1 (B) 50 (C) 100 (D) 500
Last Answer : (A) 1
Description : For classification of potable (drinking) water, we use a __________ filter. (A) Gravity sand (B) Plate and frame (C) Vacuum leaf (D) Rotary vacuum
Last Answer : (A) Gravity sand
Description : 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 & lea (C) Sand (D) Rotary vacuum
Last Answer : (C) Sand
Description : For separation of sugar solution from settled out mud, we use a __________ filter. (A) Sparkler (B) Plate and frame (C) Centrifugal (D) Rotary drum vacuum
Last Answer : (C) Centrifugal
Description : Vacuum is applied in __________ zone, in case of a general type continuous rotary drum vacuum filter. (A) Filtering (B) Washing (C) Drying (D) All (A), (B) & (C)
Last Answer : (D) All (A), (B) & (C)
Description : The controlling resistance in a rotary drum vacuum filter is the __________ resistance. (A) Piping (B) Cake (C) Filter medium (D) None of these
Last Answer : (B) Cake
Description : Filtration capacity of a rotary drum vacuum filter depends upon the (A) Cake thickness (B) Characteristics of the feed slurry (C) Both (A) & (B) (D) Neither (A) nor (B)
Last Answer : (C) Both (A) & (B)
Description : The most suitable filter for the removal of very small amount of precipitate from very large volumes of water is the __________ filter. (A) Vacuum (B) Sand (C) Plate & frame (D) Rotary
Last Answer : (B) Sand
Description : Filtrate flow rate in case of a rotary drum vacuum filter (in which Rm < < Rc ) is proportional to __________ and the cycle time (where, μ = filtrate viscosity Rm = filter medium resistance Rc = cake resistance). (A) √μ (B) 1/√μ (C) 1/μ (D) 1/μ
Last Answer : (B) 1/√μ
Description : Dust laden air can be purified using a (A) Cyclone separator (B) Bag filter (C) Gravity settler (D) Tubular centrifuge
Last Answer : (A) Cyclone separator
Description : Cement Kiln is a (A) Rotary Kiln (B) Tunnel Kiln (C) Natural draft furnace (D) Batch furnace
Last Answer : (A) Rotary Kiln
Description : Which of the following employs an accessory known as 'drift eliminator'? (A) Multiple effect evaporator (B) Mechanical draft cooling tower (C) Rotary dryer (D) Rotating disc contacto
Last Answer : (B) Mechanical draft cooling tower
Description : Sand is dried in foundries in a _________drier. (A) Rotary (B) Fluidised bed (C) Vacuum (D) Spray
Last Answer : (B) Fluidised bed
Description : Calcium ammonium nitrate (a fertiliser) is dried in a __________ dryer. (A) Rotary (B) Vacuum (C) Tunnel (D) Tray
Last Answer : (A) Rotary
Description : Drying of refractory is normally carried out in a __________ dryer. (A) Open pan (B) Tray (C) Rotary vacuum (D) Truck/tunnel
Last Answer : (D) Truck/tunnel
Description : Large quantity of silica gel is normally dried in a __________ dryer. (A) Freeze (B) Through circulation (C) Rotary vacuum (D) Tray
Last Answer : (B) Through circulation
Description : Large scale drying of wheat is done in a __________ dryer. (A) Fluidised bed (B) Spouted bed (C) Tray (D) Vacuum rotary
Last Answer : (B) Spouted bed
Description : A mono pump is a __________ pump. (A) Centrifugal (B) Piston (C) Positive acting rotary (D) A group of vacuum
Last Answer : (C) Positive acting rotary
Description : Rotary vacuum pumps can reduce the absolute pressure to as low as __________ mm Hg. (A) 1 (B) 0.1 (C) 0.01 (D) 0.001
Last Answer : (C) 0.01
Description : To handle smaller quantity of fluid at higher discharge pressure, use a __________ pump. (A) Reciprocating (B) Centrifugal (C) Volute (D) Rotary vacuum
Last Answer : (A) Reciprocating
Description : With increase in drum speed, in a rotary drum filter, the filtration rate (A) Increases (B) Increases linearly (C) Decreases (D) Is not affected
Last Answer : (A) Increases
Description : Percentage of drum submerged in the slurry in case of rotary drum filter is (A) 3 (B) 30 (C) 85 (D) 25
Last Answer : (B) 30
Description : Which of the following is not a batch drier? (A) Truck drier (B) Agitated pan drier (C) Fluidised bed drier (D) Vacuum shelf drier
Last Answer : (C) Fluidised bed drier
Description : it is a Cultivator with tines or blades mounted on a power driven horizontal shaft. A. Disc cultivator. C Rotary cultivator B. Tine cultivator. D Trailed type cultivator
Last Answer : Rotary cultivator
Description : is the mechanical manipulation of soil to provide favorable condition for crop production. A. Power tiller C. Rotary tiller B. Tillage D. Disc plough
Last Answer : Tillage
Description : is the prime mover in which the direction of travel and its control for field operation is performed by the operator walking behind it. A. Power tiller C. Tillage B. Disc plough D. Rotary tiller
Last Answer : Power tiller
Description : Which of the following is a batch furnace? (A) Cupola (B) Reheating furnace (C) Glass tank furnace (D) None of these
Last Answer : (A) Cupola
Description : For nearly isothermal operation involving large reaction time in a liquid-phase reaction, the most suitable reactor is a __________ reactor. (A) Stirred tank (B) Tubular flow (C) Batch (D) Fixed bed
Last Answer : (A) Stirred tank
Description : Which of the following is an independent variable for a batch tank reactor with uniform concentration and temperature? (A) Time (B) Useful volume of the tank (C) Diameter of the reactor (D) None of these
Last Answer : (A) Time
Description : A reactor is generally termed as an autoclave, when it is a (A) High pressure batch reactor (B) Atmospheric pressure tank reactor (C) High pressure tubular reactor (D) Atmospheric pressure CSTR
Last Answer : A) High pressure batch reactor
Description : Which of the following is the most suitable for very high pressure gas phase reaction? (A) Batch reactor (B) Tubular flow reactor (C) Stirred tank reactor (D) Fluidised bed reactor
Last Answer : (B) Tubular flow reactor
Description : Pick out the wrong statement pertaining to the turbine agitator. (A) Recommended peripheral speed for the turbine agitator is 200-250 metres/minute (B) Pitched blade turbine agitator gives only radial flow with ... l/4th of agitator diameter (with central disc, it is l/8th of the agitator diameter)
Last Answer : (B) Pitched blade turbine agitator gives only radial flow with complete absence of the axial flow
Description : In washing type plate and frame filter press, the ratio of washing rate to the final filtrate rate is (A) 4 (B) 1/4 (C) 1 (D) 1/2
Last Answer : (B) 1/4
Description : Filtration should be stopped in a filter press, if the (A) Cake becomes very dense (B) Liquor stops flowing out to the discharge (C) Filtration pressure rises suddenly (D) Both (B) & (C
Last Answer : (D) Both (B) & (C
Description : In case of a plate and frame filter press, filtrate flow through the cake follows __________ flow. (A) Plug (B) Turbulent (C) Laminar (D) None of these
Last Answer : (C) Laminar
Description : Introduction of slurry in a plate and frame filter press is done through a plate in each frame. The plate of this filter has a __________ surface. (A) Plane (B) Curved (C) Ribbed (D) Either (A) or (B)
Last Answer : (C) Ribbed
Description : Flow of filtrate through the cake in a plate and frame filter press is best described by the __________ equation. (A) Kozeny-Carman (B) Hagen-Poiseuille’s (C) Fanning's (D) Kremser
Last Answer : (A) Kozeny-Carman