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

1 Answer

Answer :

a. positive

Related questions

Description : In some food processing plants, ____ peeling is used to remove skins from soft fruit and vegetables such as tomatoes. a. hand c. boiled b. machine d. caustic

Last Answer : d. caustic

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 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

Last Answer : ANS: A

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

Last Answer : ANS: A

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 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

Last Answer : ANS: A

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 : For pumping slurry, one can use a __________ pump. (A) Reciprocating (B) Diaphragm (C) Centrifugal (D) Pneumatic

Last Answer : (B) Diaphragm

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 : 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 : 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 : 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 : 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 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 : 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 : 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 : 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 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 : The type of pump used for lifting large quantity of sewage is a __________ pump. (A) Gear (B) Centrifugal (C) Reciprocating (D) Plunger

Last Answer : (B) Centrifugal

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 : 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 : A centrifugal pump is called a turbine pump, if it is having a (A) Turbine type impeller (B) Vaned diffusion casing (C) Rotating vaned volute (D) None of these

Last Answer : (B) Vaned diffusion casing

Description : The peripheral velocity at inlet of a centrifugal pump having inlet diameter of 25 cms and rotating at 950 rpm is __________ m/sec. (A) 1.8 (B) 12.4 (C) 186.2 (D) 736.4

Last Answer : (B) 12.4

Description : Enough grain is produced in the world to give every man, woman, and child ____ pounds each day. a. five c. two b. one d. three

Last Answer : c. two

Description : Retortable pouches for packaging have ____ layers. a. three c. four b. two d. five

Last Answer : a. three

Description : The RDA is revised approximately every ____ years. a. five c. two b. ten d. three

Last Answer : a. five

Description : Hydrogen bonds are formed when a hydrogen atom is shared between two ____. a. molecules c. elements b. atoms d. neutrons

Last Answer : a. molecules

Description : Chefs prepare delicious meals and participate in ____ to show off chefs’ talents. a. Culinary Olympics c. Grand Demonstrations b. Cooking Contests d. Worldwide Classes

Last Answer : a. Culinary Olympics

Description : ____ prepare pies, breads, rolls, muffins, cookies, cakes, icings and frostings, and many other foods, depending on where they work. a. Inspectors c. Butchers b. Bakers d. Chefs

Last Answer : b. Bakers

Description : Eradication of ____ is essential to improve access to food. a. malnutrition c. poverty b. undernutrition d. terrorism

Last Answer : c. poverty

Description : According to the United Nations’ publication, Ending Hunger: An Idea Whose Time Has Come, in the last 88 years, ____ countries have done away with hunger; 41 of these countries have done it since ____. a. 80, 1970 c. 95, 1980 b. 70, 1955 d. 75, 1960

Last Answer : d. 75, 1960

Description : In developing countries, the time before ____ is most difficult for meeting nutritional needs of the people. a. planting c. winter b. harvest d. spring

Last Answer : b. harvest

Description : ____ implies a person eats but does not receive the amount of nutrients needed to keep the body healthy. a. Undernutrition c. Hunger b. Malnutrition d. Starvation

Last Answer : b. Malnutrition

Description : If all the world’s undernourished people were gathered in one place, their population would be greater than every continent except ____. a. Asia c. South America b. Europe d. North America

Last Answer : a. Asia

Description : Worldwide, about ____ million people are hungry. a. 300 c. 800 b. 500 d. 200

Last Answer : c. 800

Description : The DRVs for the energy-producing nutrients are calculated as fat based on ____ percent of calories. a. 30 c. 25 b. 20 d. 35

Last Answer : a. 30

Description : Claims for ____ relationships between a nutrient or a food and the risk of a disease or health-related condition are now allowed on food labels. a. five c. seven b. six d. eight

Last Answer : d. eight

Description : The term ____ can be used on the labels of foods that can be eaten frequently without exceeding dietary guidelines for one or more of these components: fat, saturated fat, cholesterol, sodium, and calories. a. free c. lean b. reduced d. low

Last Answer : d. low

Description : The word ____ on a label, means that a product contains no amount of, or only trivial or “physiologically inconsequential” amounts of, one or more of these components: fat, saturated fat, cholesterol, sodium, sugars, and calories. a. Low c. Lean b. Free d. Reduced

Last Answer : b. Free

Description : A daily intake of ____ calories has been established as the daily reference value (DRV). a. 1,700 c. 1,900 b. 1,800 d. 2,000

Last Answer : d. 2,000

Description : Ingredients on a food label are listed in ____ order, based on weight. a. descending c. alphabetical b. ascending d. chronological

Last Answer : a. descending

Description : Of the microorganisms, ____ are the greatest threat to food safety. a. viruses c. fungi b. parasites d. bacteria

Last Answer : d. bacteria

Description : Water comprises approximately ____ percent of cleaning and sanitizing solutions. a. 80 to 89 c. 90 to 95 b. 95 to 99 d. 75 to 85

Last Answer : b. 95 to 99

Description : A rule-of-thumb for the numbers of organisms required to produce toxins or to produce desired or undesired flavors is one million per ____. a. ounce c. gram b. kilogram d. pound

Last Answer : c. gram

Description : Most pathogenic bacteria are classified as ____. a. psychrotrophic c. psychrophilic b. thermotrophic d. mesophilic

Last Answer : d. mesophilic

Description : ____ organisms tolerate low temperatures and can grow under refrigeration. a. Psychrophilic c. Psychrotrophic b. Mesophilic d. Thermotrophic

Last Answer : c. Psychrotrophic