Atomization of spray fluid can achieved by : A. discharging the liquid through an orifice under pressure B. by breaking up the jet of liquid by a blast of _____ C. both A & B D. none

Atomization of spray fluid can achieved by :
A. discharging the liquid through an orifice under pressure  
B. by breaking up the jet of liquid by a blast of _____  
C. both A & B  
 D. none
by

1 Answer

Answer :

C. both A & B
by

Related questions

.In Hydraulic sprayers, the degree of atomization is primarily a function of A. Liquid pressure and the nozzle characteristics B. Air velocity C. Size of the nozzle D. Size and shape of the atomizer

Description : .In Hydraulic sprayers, the degree of atomization is primarily a function of A. Liquid pressure and the nozzle characteristics B. Air velocity C. Size of the nozzle D. Size and shape of the atomizer

Last Answer : A. Liquid pressure and the nozzle characteristics

What is the co-efficient of contraction, if a fluid jet discharging from a 50 mm diameter orifice has a 40 mm diameter at its vena-contracta? (A) 0.64 (B) 1.65 (C) 0.32 (D) 0.94

Description : What is the co-efficient of contraction, if a fluid jet discharging from a 50 mm diameter orifice has a 40 mm diameter at its vena-contracta? (A) 0.64 (B) 1.65 (C) 0.32 (D) 0.94

Last Answer : (A) 0.64

A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is (A) 0.46 (B) 0.64 (C) 0.78 (D) 0.87

Description : A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is (A) 0.46 (B) 0.64 (C) 0.78 (D) 0.87

Last Answer : Answer: Option B

Flow rates of particular nozzle is directly proportional to a. square root of pressure b. orifice area c. Both (a) and (B) d. none of the above

Description : Flow rates of particular nozzle is directly proportional to a. square root of pressure b. orifice area c. Both (a) and (B) d. none of the above

Last Answer : c. Both (a) and (B)

The process of breaking up or liquid into fine droplets by spraying is A. vaporization B. atomization C. condensation D. evaporation

Description : The process of breaking up or liquid into fine droplets by spraying is A. vaporization B. atomization C. condensation D. evaporation

Last Answer : ANSWER : B

The process of breaking up a liquid into fine droplets by spraying is called a. vaporization b. carburetion c. injection d. atomization

Description : The process of breaking up a liquid into fine droplets by spraying is called a. vaporization b. carburetion c. injection d. atomization

Last Answer : ANSWER d. atomization

swirl plate in the cone nozzle is provided to. a. Impart rotational motion to the liquid passing through it. b. To increase the droplet size. c. To decrease the droplet size. d. To increase the spray angle.

Description : swirl plate in the cone nozzle is provided to. a. Impart rotational motion to the liquid passing through it. b. To increase the droplet size. c. To decrease the droplet size. d. To increase the spray angle.

Last Answer : a. Impart rotational motion to the liquid passing through it.

Variation in the drop size of seed can be minimised by (a) Using a short, smooth, small diameter tube with the discharge end close to bottom of furrow. (b) Discharging the seed directly from the metering device within a few centimetres of the furrow bottom. (c) Mechanically transferring the seeds from the metering unit in the furrow. (d) All of the above.

Description : Variation in the drop size of seed can be minimised by (a) Using a short, smooth, small diameter tube with the discharge end close to bottom of furrow. (b) Discharging the seed directly from ... (c) Mechanically transferring the seeds from the metering unit in the furrow. (d) All of the above.

Last Answer : d) All of the above.

power spray are operated at a pressure. a. 5-10 kg/m2 b.10-20 kg/m2 c.20-55 kg/m2 d.>55 kg/m2

Description : power spray are operated at a pressure. a. 5-10 kg/m2 b.10-20 kg/m2 c.20-55 kg/m2 d.>55 kg/m2

Last Answer : c.20-55 kg/m2

Flooding nozzle have spray angle a) 100-150 b) 90-100 c) 60-95 d) 30-45

Description : Flooding nozzle have spray angle a) 100-150 b) 90-100 c) 60-95 d) 30-45

Last Answer : a) 100-150

Nozzle spacing on boom is governed by a.) Type of spray b.) Height of crops c.) Density of crop d.) All of the above

Description : Nozzle spacing on boom is governed by a.) Type of spray b.) Height of crops c.) Density of crop d.) All of the above

Last Answer : d.) All of the above

Hollow cone nozzles employed on boom type of sprayers have spray angle between : A .30-60° B.40-60° C.60-95° D.100-150°

Description : Hollow cone nozzles employed on boom type of sprayers have spray angle between : A .30-60° B.40-60° C.60-95° D.100-150°

Last Answer : C.60-95°

Spray Angle for fan nozzles and hollow cone nozzle a) 40-50 b) 50-60 c) 60-95 d) 100-150

Description : Spray Angle for fan nozzles and hollow cone nozzle a) 40-50 b) 50-60 c) 60-95 d) 100-150

Last Answer : c) 60-95

0ff-set disc harrows are best suitable to work for a) primary implement b) breaking clods c) orchard cultivation d) surface finishing

Description : 0ff-set disc harrows are best suitable to work for a) primary implement b) breaking clods c) orchard cultivation d) surface finishing

Last Answer : c) orchard cultivation

Lister plows especially suitable for a.) Dry land agriculture. b.) Breaking hard pan. c.) Earthing plants. d.) Mulching.

Description : Lister plows especially suitable for a.) Dry land agriculture. b.) Breaking hard pan. c.) Earthing plants. d.) Mulching.

Last Answer : a.) Dry land agriculture.

Subsoiler plough is best suited for a. breaking hard pan b. deep ploughing c. making ditches d. inter cultivation

Description : Subsoiler plough is best suited for a. breaking hard pan b. deep ploughing c. making ditches d. inter cultivation

Last Answer : a. breaking hard pan

Forces which a tool must overcome in cutting, breaking and moving the soil is called a) Useful soil resistance b) Parasitic force c) Draft of implement d) Pull of implement

Description : Forces which a tool must overcome in cutting, breaking and moving the soil is called a) Useful soil resistance b) Parasitic force c) Draft of implement d) Pull of implement

Last Answer : a) Useful soil resistance

Vena-contracta formed during flow of a liquid through an orificemeter has (A) Minimum liquid cross-section (B) More diameter compared to orifice diameter (C) Minimum velocity of fluid stream (D) None of these

Description : Vena-contracta formed during flow of a liquid through an orificemeter has (A) Minimum liquid cross-section (B) More diameter compared to orifice diameter (C) Minimum velocity of fluid stream (D) None of these

Last Answer : (A) Minimum liquid cross-section

In hydraulic sprayers, the degree is primarily a function of: a) Liquid pressure and the nozzle characteristics b) Air velocity c) Size of the nozzle d) Shape and size of the atomizer

Description : In hydraulic sprayers, the degree is primarily a function of: a) Liquid pressure and the nozzle characteristics b) Air velocity c) Size of the nozzle d) Shape and size of the atomizer

Last Answer : a) Liquid pressure and the nozzle characteristics

Cd , Cc and Cv are related (for flow through an orifice) as (where, Cd = discharge co-efficient, Cc = co-efficient of contraction = (area of jet at vena￾contracta/area of opening), Cv = co-efficient of velocity = (actual velocity at vena-contracta/theoretical velocity). (A) Cd = Cc /Cv (B) Cd = Cc .Cv (C) Cd = Cv / Cc (D) None of these

Description : Cd , Cc and Cv are related (for flow through an orifice) as (where, Cd = discharge co-efficient, Cc = co-efficient of contraction = (area of jet at vena￾contracta/area of opening), Cv = co-efficient of velocity = (actual velocity ... A) Cd = Cc /Cv (B) Cd = Cc .Cv (C) Cd = Cv / Cc (D) None of these

Last Answer : (B) Cd = Cc .Cv

Coefficient of resistance is the ratio of (A) Actual velocity of jet at vena-contracta to the theoretical velocity (B) Area of jet at vena-contracta to the area of orifice (C) Loss of head in the orifice to the head of water available at the exit of the orifice (D) Actual discharge through an orifice to the theoretical discharge

Description : Coefficient of resistance is the ratio of (A) Actual velocity of jet at vena-contracta to the theoretical velocity (B) Area of jet at vena-contracta to the area of orifice (C) Loss ... available at the exit of the orifice (D) Actual discharge through an orifice to the theoretical discharge

Last Answer : Answer: Option C

Coefficient of velocity is defined as the ratio of (A) Actual velocity of jet at vena contracta to the theoretical velocity (B) Area of jet at vena contracta to the area of orifice (C) Actual discharge through an orifice to the theoretical discharge (D) None of the above

Description : Coefficient of velocity is defined as the ratio of (A) Actual velocity of jet at vena contracta to the theoretical velocity (B) Area of jet at vena contracta to the area of orifice (C) Actual discharge through an orifice to the theoretical discharge (D) None of the above

Last Answer : Answer: Option A

5. In "Imperial Smelting Process" for extraction of zinc, zinc vapour thus produced is quenched in the external condenser by the use of the following: (A) Jet of water at high pressure (B) Blast of air (C) Mixture of water and air (D) Rain of molten lead

Description : 5. In "Imperial Smelting Process" for extraction of zinc, zinc vapour thus produced is quenched in the external condenser by the use of the following: (A) Jet of water at high pressure (B) Blast of air (C) Mixture of water and air (D) Rain of molten lead

Last Answer : Option D

__________ 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

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

Coefficient of contraction is the ratio of (A) Actual velocity of jet at vena contracta to the theoretical velocity (B) Loss of head in the orifice to the head of water available at the exit of the orifice (C) Loss of head in the orifice to the head of water available at the exit of the orifice (D) Area of jet at vena-contracta to the area of orifice

Description : Coefficient of contraction is the ratio of (A) Actual velocity of jet at vena contracta to the theoretical velocity (B) Loss of head in the orifice to the head of water available at the exit of the ... available at the exit of the orifice (D) Area of jet at vena-contracta to the area of orifice

Last Answer : Answer: Option D

In electrostatic spraying the total volume of liquid to be sprayed over one Hectare is a.<1 litres b. 50 litres c. 100 litres d.>100 litres

Description : In electrostatic spraying the total volume of liquid to be sprayed over one Hectare is a.100 litres

Last Answer : a.

Agitator(propeller or paddle)type for agitating liquid in power sprays have a velocity of a.100-120 rpm b.60-100 rpm c.10-20 rpm d. none of the above

Description : Agitator(propeller or paddle)type for agitating liquid in power sprays have a velocity of a.100-120 rpm b.60-100 rpm c.10-20 rpm d. none of the above

Last Answer : a.100-120 rpm

The amount of liquid required for spraying of plantation crops is : a.) 200-400L/ha b.) 400-600L/ha c.) 600-800L/ha d.) 1000-1200L/ha

Description : The amount of liquid required for spraying of plantation crops is : a.) 200-400L/ha b.) 400-600L/ha c.) 600-800L/ha d.) 1000-1200L/ha

Last Answer : d.) 1000-1200L/ha

he amount of liquid required for ground spraying of agricultural crops is : a.) 400-600L/ha b.) 200-400L/ha c.) 1000-2000L/ha d.) 600-800L/ha

Description : he amount of liquid required for ground spraying of agricultural crops is : a.) 400-600L/ha b.) 200-400L/ha c.) 1000-2000L/ha d.) 600-800L/ha

Last Answer : a.) 400-600L/ha

Measurement of the interfacial area of mass transfer is achieved easily & accurately in case of a __________ column. (A) Spray (B) Packed (C) Bubble cap plate (D) Wetted wall

Description : Measurement of the interfacial area of mass transfer is achieved easily & accurately in case of a __________ column. (A) Spray (B) Packed (C) Bubble cap plate (D) Wetted wall

Last Answer : (D) Wetted wall

Smaller tension ratio result in.... (a) Unnecessary high tension in belt (b) Reduction in belt life (c) Both (c) & (b) (d) Excessive belt slippage

Description : Smaller tension ratio result in.... (a) Unnecessary high tension in belt (b) Reduction in belt life (c) Both (c) & (b) (d) Excessive belt slippage

Last Answer : (c) Both (c) & (b)

High speed diesel A) is used on high speed engine B) has lower fule value then l.s.d per litre. C)both (a) & (b) D)none of the above

Description : High speed diesel A) is used on high speed engine B) has lower fule value then l.s.d per litre. C)both (a) & (b) D)none of the above

Last Answer : C)both (a) & (b)

tractors are generally fitted with: A)sliding mesh gear box B)constant mesh gear box C)both (a) & (b) D)synchromesh gear box

Description : tractors are generally fitted with: A)sliding mesh gear box B)constant mesh gear box C)both (a) & (b) D)synchromesh gear box

Last Answer : A)sliding mesh gear box

Closer group spacing and accurate hill spacing is obtained with a) Rotary valve b) Transfer wheel c)Both a & b d)All of the above

Description : Closer group spacing and accurate hill spacing is obtained with a) Rotary valve b) Transfer wheel c)Both a & b d)All of the above

Last Answer : c)Both a & b

346- Side deflection of stalk can be minimized by.... (a) Having a short cutting stroke (b) Having an arrangement to obtain two cuts per stroke (c) Both (a) & (b) (d) None of the above

Description : 346- Side deflection of stalk can be minimized by.... (a) Having a short cutting stroke (b) Having an arrangement to obtain two cuts per stroke (c) Both (a) & (b) (d) None of the above

Last Answer : (c) Both (a) & (b)

Location of vena-contracta in an orificemeter does not depend upon the (A) Type of orifice (B) Density, viscosity & compressibility of the fluid (C) Ratio of pipe diameter to orifice diameter (D) Pipe roughness

Description : Location of vena-contracta in an orificemeter does not depend upon the (A) Type of orifice (B) Density, viscosity & compressibility of the fluid (C) Ratio of pipe diameter to orifice diameter (D) Pipe roughness

Last Answer : (A) Type of orifice

The current zero interruption, in oil and air blast circuit breakers, is achieved by (a) lengthening of the gap (b) cooling and blast effect (c) both (a) and (b) (d) deionizing the oil with forced air (e) none of the above

Description : The current zero interruption, in oil and air blast circuit breakers, is achieved by (a) lengthening of the gap (b) cooling and blast effect (c) both (a) and (b) (d) deionizing the oil with forced air (e) none of the above

Last Answer : (c) both (a) and (b)

A slat mould board scours better than a solid mould board because of smaller contact area resulting in a) Reduction of adhesive force b) Increase in soil pressure c) Both (a) and (b) d) None of the above

Description : A slat mould board scours better than a solid mould board because of smaller contact area resulting in a) Reduction of adhesive force b) Increase in soil pressure c) Both (a) and (b) d) None of the above

Last Answer : c) Both (a) and (b)

Pick out the wrong statement. (A) Superheated steam is preferably not used for process heating because of its low heat transfer film co-efficient (B) In a shell and tube heat exchanger, the shell pressure drop is maximum for orifice baffles (C) S.I. unit of fouling factor is Watt/m2 .°K (D) Longitudinal fins are used in extended surface heat exchangers, when the direction of fluid flow is parallel to the axis of the tube

Description : Pick out the wrong statement. (A) Superheated steam is preferably not used for process heating because of its low heat transfer film co-efficient (B) In a shell and tube heat exchanger ... surface heat exchangers, when the direction of fluid flow is parallel to the axis of the tube

Last Answer : (C) S.I. unit of fouling factor is Watt/m2 .°K

___ coffee is prepared by forcing an atomized spray of very strong coffee extract through a jet of hot air. a. Decaffeinated c. Black b. Instant d. Espresso

Description : ___ coffee is prepared by forcing an atomized spray of very strong coffee extract through a jet of hot air. a. Decaffeinated c. Black b. Instant d. Espresso

Last Answer : b. Instant

If a fluid expands suddenly into vacuum through an orifice of large dimension, then such a process is called  (a) free expansion  (b) hyperbolic expansion  (c) adiabatic expansion  (d) parabolic expansion  (e) throttling.

Description : If a fluid expands suddenly into vacuum through an orifice of large dimension, then such a process is called  (a) free expansion  (b) hyperbolic expansion  (c) adiabatic expansion  (d) parabolic expansion  (e) throttling.

Last Answer : Answer : a

Which of the following is not a practical method of low level radioactive waste disposal? (A) Dilution with inert material (B) Discharging to atmosphere through tall stacks after dilution (C) Disposing off in rivers & oceans (D) Filling in steel crates and shooting it off out of earth's gravity

Description : Which of the following is not a practical method of low level radioactive waste disposal? (A) Dilution with inert material (B) Discharging to atmosphere through tall stacks after dilution (C) Disposing off in rivers & oceans (D) Filling in steel crates and shooting it off out of earth's gravity

Last Answer : (D) Filling in steel crates and shooting it off out of earth's gravity

349- Pods, heads or ears & freeseeds, lost during the cutting & conveying operation are called as..... (a) Cylinder loss (b) Walker losses ( rack loss) (c) Shoe losses (d) Gathering loss

Description : 349- Pods, heads or ears & freeseeds, lost during the cutting & conveying operation are called as..... (a) Cylinder loss (b) Walker losses ( rack loss) (c) Shoe losses (d) Gathering loss

Last Answer : (d) Gathering loss

The current zero interruption, in oil and air blast circuit breakers, is achieved by?

Description : The current zero interruption, in oil and air blast circuit breakers, is achieved by?

Last Answer : The current zero interruption, in oil and air blast circuit breakers, is achieved by lengthening of the gap, cooling and blast effect.

.Fandem wheels are preferred over dual wheels because a) they tends to reduce load on an area by50% b)they tends to reduce soil contact pressure c)reduces sub soil compact ness pressure d)none of the above

Description : .Fandem wheels are preferred over dual wheels because a) they tends to reduce load on an area by50% b)they tends to reduce soil contact pressure c)reduces sub soil compact ness pressure d)none of the above

Last Answer : a) they tends to reduce load on an area by50%

Dual wheels have disadvantage of a)reducing soil contact pressure and sub soil compact negative pressure b) concentrating load over an area c)reduces load on area by 50% d) none of the above

Description : Dual wheels have disadvantage of a)reducing soil contact pressure and sub soil compact negative pressure b) concentrating load over an area c)reduces load on area by 50% d) none of the above

Last Answer : b) concentrating load over an area

Hand operated sprayer are operated at a pressure (kg/cm2) a) 1-7 b) 7-10 c)10-20 d) 20-55

Description : Hand operated sprayer are operated at a pressure (kg/cm2) a) 1-7 b) 7-10 c)10-20 d) 20-55

Last Answer : a) 1-7

Operating pressure of power operated sprayer E. 1-7 kg/cm2 F. 10-20 kg/cm2+ G. 20-55 kg/cm2 H. >55 kg/cm2

Description : Operating pressure of power operated sprayer E. 1-7 kg/cm2 F. 10-20 kg/cm2+ G. 20-55 kg/cm2 H. >55 kg/cm2

Last Answer : G. 20-55 kg/cm2

Operating pressure of the hand operated sprayer is E. 20-55 kg/cm2 F. 1-7 kg/cm2 G. 10-20 kg/cm2 H. >55 kg/cm2

Description : Operating pressure of the hand operated sprayer is E. 20-55 kg/cm2 F. 1-7 kg/cm2 G. 10-20 kg/cm2 H. >55 kg/cm2

Last Answer : F. 1-7 kg/cm2