Description : Q No: 131 The most widely used pump for lifting sewage is A. Centrifugal pump B. Reciprocating pump C. Pneumatic ejector D. Air pressure pump
Last Answer : ANS: A
Description : Which of the following is the most common pump for pumping either raw sewage or sludge? (A) Electromagnetic pump (B) Centrifugal pump (C) Reciprocating pump (D) Gear pump
Last Answer : (C) Reciprocating pump
Description : Pump used for the transportation of molten sodium in a fast breader reactor is a/an __________ pump. (A) Reciprocating (B) Plunger (C) Electromagnetic (D) Gear
Last Answer : (C) Electromagnetic
Description : Boiler feed water pump is usually a __________ pump. (A) Reciprocating (B) Gear (C) Multistage centrifugal (D) Diaphragm
Last Answer : (C) Multistage centrifugal
Description : Maintenance cost of a __________ pump for a particular duty is the least. (A) Centrifugal (B) Reciprocating (C) Volute (D) Gear
Last Answer : (A) Centrifugal
Description : Molten soap mass is transported by a __________ pump. (A) Diaphragm (B) Reciprocating (C) Gear (D) Centrifugal
Last Answer : (D) Centrifugal
Description : For the transfer of solution of thick slurry, the pump used is a __________ pump. (A) Reciprocating (B) Gear (C) Diaphragm (D) Centrifugal
Last Answer : (C) Diaphragm
Description : Priming is needed in a __________ pump. (A) Reciprocating (B) Gear (C) Centrifugal (D) Diaphragm
Last Answer : (C) Centrifugal
Description : Most commonly used pump for lifting water in water supply mains, is (A) Axial flow pump (B) Reciprocating pump (C) Rotary type pump (D) Centrifugal pumps
Last Answer : (A) Axial flow pump
Description : The pump used in airplane sprayers: A. Dentrifugal and gear pump B. Gear and Diaphragm pump C. Diaphragm and centrifugal pump D. Plunger and centrifugal pump
Last Answer : Dentrifugal and gear pump
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 : Which of the following is used for pumping crude oil from oil well? (A) Single stage centrifugal pump (B) Gear pump (C) Screw pump (D) Duplex/triplex reciprocating pump
Last Answer : (D) Duplex/triplex reciprocating pump
Description : Which of the following is most prone to pulsating discharge flow? (A) Centrifugal pump (B) Reciprocating pump (C) Gear pump (D) Axial flow pump
Last Answer : (C) Gear pump
Description : The non-clog pump which permits solid matter to pass out with the liquid sewage, is A. Centrifugal pump B. Reciprocating pump C. Pneumatic ejector D. None of these
Description : Which of the following pumps in used to pump sewage solids with liquid sewage without clogging the pump is? A. Centrifugal pump B. Pneumatic ejector C. Reciprocating pump D. None of these
Description : Draining of shallow pits or sump is done by a sump pump, which is a __________ pump. (A) Single stage vertical (B) Centrifugal (C) Plunger (D) Diffuser
Last Answer : (A) Single stage vertical
Description : Medium viscosity lubricating oil can be most ideally pumped by a __________ pump. (A) Vane (B) Piston (C) Centrifugal (D) Plunger
Last Answer : (A) Vane
Description : __________ pump is the most suitable device for discharging a liquid against a pressure of ≥ 1500 kgf/cm2 . (A) Centrifugal (B) Piston (C) Plunger (D) Vane
Last Answer : (C) Plunger
Description : The type of pump used for the recirculation of molten sodium coolant in liquid metal cooled reactor is a/an __________ pump. (A) Electromagnetic (B) Reciprocating (C) Centrifugal (D) Volute
Last Answer : (A) Electromagnetic
Description : Slurries can be most conveniently pumped by a __________ pump. (A) Screw (B) Reciprocating (C) Gear (D) Centrifuga
Last Answer : (D) Centrifuga
Description : The pump is used in power-operated sprayer is: A. Plunger type B. Diaphragm type C. Gear type D. Piston type
Last Answer : Gear type
Description : For pumping slurry, one can use a __________ pump. (A) Reciprocating (B) Diaphragm (C) Centrifugal (D) Pneumatic
Last Answer : (B) Diaphragm
Description : A hydraulic ram acts as a/an __________ pump. (A) Centrifugal (B) Reciprocating (C) Impulse (D) Parallel cylinder
Last Answer : (C) Impulse
Description : Bucket type sprayer consist of: i) Single and double acting pump c) Plunger type pump j) Centrifugal pump d) All are correct
Last Answer : Single and double acting pump
Description : Bucket type sprayer consist of: A. Single and double acting pump B. Centrifugal pump C. Plunger type pump D. All are correct
Description : Continuous injection system usually has a) plunger pump b) rotary pump c) gear pump d) vane pump
Last Answer : Answer: b Explanation: In common use continuous injection system usually has rotary pump.
Description : Crude oil is pumped by a __________ pump. (A) Gear (B) Centrifugal
Last Answer : (B) Centrifugal
Description : Reciprocating pumps are not able to compete with the centrifugal pump for industrial use, mainly because these pumps have (A) Very low speeds (B) Smaller discharge (C) Higher capital &maintenance cost (D) High vibrations
Last Answer : (C) Higher capital &maintenance cost
Description : In case of unsteady fluid flow, conditions & flow pattern change with the passage of time at a position in a flow situation. Which of the following is an example of unsteady flow? (A) ... level is maintained (D) Low velocity flow of a highly viscous liquid through a hydraulically smooth pipe
Last Answer : (B) Water flow in the suction and discharge pipe of a reciprocating pump
Description : The depth of the water table at a place is 45 m below the general ground level. To lift water from a deep tube well in such a locality, the type of pump to be installed is (A) Centrifugal pump (B) Reciprocating pump (C) Deep well turbine pump (D) None of these
Last Answer : (C) Deep well turbine pump
Description : In a naturally aspirated diesel engine, the air is supplied by a A. supercharger B. centrifugal pump C. movement of engine piston D. reciprocating pump
Last Answer : ANSWER : C
Description : The disintegrating pump in which solid matter is broken up before passing out, is A. Centrifugal pump B. Reciprocating pump C. Pneumatic ejector D. None of these
Description : Which Pump Is More Efficient Centrifugal Pump Or Reciprocating Pump?
Last Answer : Centrifugal pump. Because flow rate is higher compared to reciprocating pump. Flow is smooth and it requires less space to install. Lower initial cost and lower maintenance cost.
Description : A ____ pump consists of a reciprocating or rotating cavity between two lobes or gears and a rotor. a. positive c. negative b. centrifugal d. hand
Last Answer : a. positive
Description : Differentiate Reciprocating pump with centrifugal pump.
Last Answer : Sr. No. Reciprocating Pump Centrifugal Pump 1 For Reciprocating pump discharge is fluctuating. For Centrifugal pump discharge is continuous. 2 Suitable for less ... more floor area and requires heavy foundation. Requires less floor area and simple foundation.
Description : Gear pump (A) Is a positive displacement pump (B) Is a centrifugal pump (C) Is a non-positive displacement pump (D) Can be started with delivery valve closed
Last Answer : (A) Is a positive displacement pump
Description : Which one of the following statements is correct? A. Reciprocating compressors are used to supply large quantities of air at a lower pressure ratio B. Centrifugal compressors are used to supply ... . Centrifugal compressors cannot be run at high speed because of impeller, diffuser and casing.
Last Answer : ANSWER : B
Description : The __________ of a double acting reciprocating pump as compared to the single acting pump will be almost double. (A) Flow output (B) Head developed (C) Overall efficiency (D) Weight
Last Answer : Option A
Description : A hydraulic accumulator comprises of (A) A storage device and a control valve (B) A cylinder and a plunger (C) Two pistons and two cylinders (D) A storage tank and a ram pump
Last Answer : (B) A cylinder and a plunger
Description : Higher specific speed (200-500) of a centrifugal pump indicates that the pump is of __________ flow type. (A) Axial (B) Radial (C) Mixed (D) None of these
Last Answer : (A) Axial
Description : Reciprocating pumps compared to centrifugal pumps (A) Deliver liquid at uniform pressure (B) Can handle slurries more efficiently (C) Are not subject to air binding (D) Can be operated with delivery valve closed
Last Answer : (C) Are not subject to air binding
Description : Centrifugal compressors compared to reciprocating compressors (A) Require less space (B) Have quieter operation (C) Have lower operating costs (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Which of the following can be used to create a flow of gas, where no significant compression is required? (A) Reciprocating compressor (B) Blower (C) Axial flow compressor (D) Centrifugal compressor
Last Answer : (B) Blower
Description : Centrifugal pumps as compared to reciprocating pumps (A) Run at a lower speed for the same discharge (B) Do not need priming (C) Deliver fluid with pulsating/fluctuating discharge (D) Can be run with discharge line valve closed for a short interval
Last Answer : (D) Can be run with discharge line valve closed for a short interval
Description : The domestic refrigerator uses following type of compressor (a) centrifugal (b) axial (c) miniature sealed unit (d) piston type reciprocating
Last Answer : Ans: d
Description : The specific speed of a centrifugal compressor is generally A. less than that of reciprocating compressor B. independent of compressor type, but depends only on size of compressor C. higher ... axial compressor D. more than specific speed of reciprocating compressor but less than axial compressor
Description : Pumping of a corrosive liquid is generally preferred to be done by a __________ pump, as it can be made of a variety of materials including plastics. (A) Piston (B) Gear (C) Positive displacement (D) Sump
Last Answer : (B) Gear
Description : For the production of very high vacuum, a __________ pump is normally used. (A) Diffusion (B) Centrifugal (C) Jet ejector (D) Piston
Last Answer : (A) Diffusion
Description : Liquid delivery by centrifugal pump starts, only when the head developed by it is equal to the __________ head. (A) Manometric (B) Total (C) Static (D) Friction
Last Answer : (A) Manometric
Description : Specific speed of a centrifugal pump depends upon the __________ head. (A) Suction (B) Delivery (C) Manometric (D) None of these
Last Answer : (D) None of these