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
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
Description : Hand atomizer application rate ranges from a. 20 to 45 liters per acre. c. 16 to 45 liters per acre. d. None of above
Last Answer : Ans- b. 18 to 45 liters per acre
Description : Hand atomizer is used for spraying in: A. Nursery B. Orchard C. Field crop D. None of these
Last Answer : Nursery
Description : In a sprayer overlapping can be increased by increasing a) Nozzle diameter b) Pressure c) Discharge d) Height of nozzle Ans. d
Last Answer : ans d
Description : Water is flowing through a 1 foot diameter pipe at the rate of 10ft/sec. What is the volume flow rate of water in ft³/sec? a. 7.85 b. 6.85 c. 8.85 d. 5.85 V = Aν
Last Answer : 7.85
Description : In flame atomizer the sample is converted into fine spray by (A) burner (B) fuel (C) nebulizer (D) none of these
Last Answer : In flame atomizer the sample is converted into fine spray by nebulizer.
Description : The most suitable flow measuring device for the fluid flow measurement in a very large diameter pipeline is a (A) Weir (B) Pitot tube (C) Kennison nozzle (D) V-notch
Last Answer : (B) Pitot tube
Description : The energy loss in flow through Venturimeter is less than that through flow nozzle, because in case of a flow nozzle, the (A) Length is shorter (B) Throat diameter is more (C) Sudden expansion of flow in the downstream occurs (D) Distance between the throat and the inlet is more
Last Answer : (C) Sudden expansion of flow in the downstream occurs
Description : A pipe of length more than double the diameter of orifice fitted externally or internally to the orifice is called a (A) Notch (B) Weir (C) Mouthpiece (D) Nozzle
Last Answer : Answer: Option C
Description : Under what condition a convergent divergent nozzle required ?
Last Answer : When pressure ratio is greater than critical pressure ratio.
Description : Under what circumstances would there be an increase in pressure in a diver¬gent nozzle ?
Last Answer : For subsonic flow at inlet section of a diffuser a lower velocity and higher pressure will exist at the exit section. For supersonic isentropic flow at the inlet section a higher velocity and lower pressure ... if a shock wave occurs in the diffuser then a higher pressure will exist at the exit.
Description : What is the effect of friction on flow of steam through a nozzle ?
Last Answer : To decrease both mass flow rate and wetness of steam.
Description : When maximum discharge is obtained in nozzle ?
Last Answer : At the critical pressure ratio.
Description : Name of instrument used for testing of spray nozzle a) Patternator b) Aerometer c) Galvanometer d) Piezometer Ans. a
Last Answer : ans a
Description : A flat fan nozzle is suitable for a) Foliage spray b) Insect control c) Spot spray d) Herbicide spray
Description : Fan nozzle mostly used for pressure spraying. b. high c. moderate d. None of above
Last Answer : Ans- b. low
Description : . Fan nozzle forms narrow. spray pattern. a. large c. Straight. d. None of above
Last Answer : Ans- b. elliptical.
Description : Hallow cone nozzle – liquid is fed into whirl chamber through entry or through a fixed spiral passage to give rotation motion. a. Axial b. Radial c. tangential. d. None of above
Last Answer : Ans- c. tangential.
Description : It is the part of cone nozzle which imparts rotation to the liquid. b. Cone plate c. Round plate d. None of above
Last Answer : Ans- a. Swirl plate
Description : The conventional type of Mower consists of which of the following a) Wearing Plate b) Nozzle c) Air Chamber d) None of the above
Last Answer : Wearing Plate
Description : nozzle which forms narrow elliptical spray pattern. a) Hollow cone nozzle b) Hard cone nozzle c) Solid cone nozzle d) Fan nozzle
Last Answer : Fan nozzle
Description : Basic components of sprayer is a) Nozzle body b) Spray boom c) Nozzle cap d) All of the above
Last Answer : All of the above
Description : Component to remove suspended matter large than a predetermined size from fluid. a. Relief valve. c. Filter b. Spray gun. d. Nozzle
Last Answer : Filter
Description : Nozzle consists of components a) Washer b) Vortex plate c) Strainer d) All of the above
Description : is the minimum pressure required for operating a nozzle in desirable condition a) 1 kg/cm b) 1.5kg/cm c) 2 kg/cm d) 2.5kg/cm
Last Answer : 1.5kg/cm
Description : is the types of nozzle used in sprayers a) Hollow cone type of nozzle b) Solid cone type nozzle c) Fan type nozzle d) All of the above
Description : Basic components of sprayer. a. Nozzle body b. Nozzle boss c. Filter d. Spray gun e. All of the above
Description : Junior hoe consist of and attached to the framework with hinge arrangement a) Reversible showers, nozzle body b) Reversible shovels, curved tynes c) Reversible shovels, curved tyres d) Pressure regulator, spray lance
Last Answer : Reversible shovels, curved tynes
Description : In the natural draft cooling tower_________ is not required a) Fan b) tower c) Nozzle d) none of the above
Last Answer : Fan
Description : Open system usually encloses which of the following devices? A. Compressor B. Turbine C. Nozzle D. All of the above
Description : hand atomiser capacity is ……….. to litres. a. 0.5 to 3.5. c 0.6 to 3.5 b. 0.6 to 4. d. 0.8 to 6
Last Answer : 0.5 to 3.5
Description : The moment of inertia of a hollow circular section whose external diameter is 8 cm and interial diameter is 6 cm about the axis passing through its centre is a.66.8 cm4 b.137.5 cm4 c.550 cm4 d.33.4 cm4 e.275 cm4
Last Answer : b. 137.5 cm4
Description : The polar moment of inertia of a hollow circular section whose external diameter is 8 cm and internal diameter of 6 cm will be a.137.5 cm4 b.107 dynes c.275 cm4 d.550 cm4 e.1100 cm4
Last Answer : c. 275 cm4
Description : How many coins 0.75 cm in diameter and 1/8 cm thick must be malted down to form a rectangular solid whose edges are 5 cm. 4 cm and 3 cm? a.584 b.1087 c.0.00001745 sec-1 d.1234 e.2174
Last Answer : b. 1087
Description : What is the total acceleration of a point on the rim of a flywheel 4 mts in diameter 0.6 see after it has started from rest if it accelarates uniformly from rest to 2000 rpm in 20 secs. a.68.9 mts/sec2 b.102.6 mts/sec2 c.78.94 mts/sec2 d.107 dynes e.33.2 mts/sec2
Last Answer : c. 78.94 mts/sec2
Description : A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun's equation for the above fluid-particle system ... What is the porosity of the fluidised bed? (A) 0.2 (B) 0.5 (C) 0.7 (D) 0.8
Last Answer : (C) 0.7
Description : A particle moves along a rough plane inclined at 30? to the horizontal. The co-efficient of friction between the particle and the plane is 0.1. Its initial velocity is 15 m/sec. The ratio of the velocity of the particle when it move ... be in the regions a.8 ? 10 b.5 ? 7 c.2 ? 3 d.4 ? 6 e.10 ? 13
Last Answer : b. 5 ? 7
Description : A screw jack has 4 threads per inch. The mean radius of the thread is 2.338 inches. The mean diameter of the bearing surface under the cap is 3.25 inches. What is the turning moment required to raise the bload of 150 kg ( a.5.61 kg-inch b.50.6 kg-inch c.107 dynes d.30.3 kg-inch e.23.6 kg-inch
Last Answer : b. 50.6 kg-inch
Description : In a single threaded worm and worm wheel the number of teeth on the worm wheel is 60. The diameter of the effort wheel is 12 cm and that of load drum is 8 cm. The velocity ratio will be a.90 b.120 c.60 d.45 e.107 dynes
Last Answer : a. 90
Description : In a single threaded worm and worm wheel the number of teeth on the worm wheel is 80. The diameter of the effort wheel is 12 cm and that of load drum is 8 cm. The velocity ratio will be a.60 b.45 c.120 d.107 dynes e.90
Last Answer : c. 120
Description : A wheel 8 mts in diameter coasts to rest from a speed of 800 rpm in 10 minutes. Its angular deceleration is a.308/min2 b.683 rad/min2 c.502 rad/min2 d.107 dynes e.809 rad/min2
Last Answer : c. 502 rad/min2
Description : In finish machining of an island on a casting with CNC milling machine, an end mill with 10 mm diameter is employed. The corner points of the island are represented by (0, 0), (0, 30), (50, 30) and (50, 0). By applying cutter radius right ... , 5), (5, 5) d.(5, 5), (45, 5), (45, 25), (5, 25), (5, 5)
Last Answer : a.(-5, 0), (-5, 35), (55, 35), (55,-5), (-5,-5)
Description : A problem Drum ( 3 ft. diameter ; 6 ft. height ) is field with a fluid whose density is 50 lb/ft^3. Determine the total volume of the fluid. A. 42.41 ft^3 B.44.35 ft^3 C.45.63 ft^3 D.41.23 ft^3 Formula: Vf = (pi d^2 h) / 4
Last Answer : 42.41 ft^3
Description : Let R be the rectangular window against which the lines are to be clipped using 2D Sutherland-Cohen line clipping algorithm. The rectangular window has lower left-hand corner at (-5,1) and upper righthand corner at (3,7). ... s) is/are candidate for clipping? (A) AB (B) CD (C) EF (D) AB and CD
Last Answer : (D) AB and CD
Description : The moment of inertia of a semi-circle of radius r with respect to a centroidal axis parallel to the diameter is a.0.33 r2 b.0.11 r2 c.0.055 r2 d.0.05 r2 e.0.22 r2
Last Answer : b. 0.11 r2
Description : Water flow to a terminal 3 mm diameter and has an average speed of 2 m/s. What is the rate of flow in cubic meter/mm? a. 0.0001m³/min b. 0.076 m³/min c. 0.085 m³/min d. 0.097 m³/min
Last Answer : 0.085 m³/min
Description : The angular velocity of seconds hand of a watch is a.0.01745 sec-1 b.0.00001745 sec-1 c.0.0001745 sec-1 d.0.001745 sec-1 e.0.1047 sec-1
Last Answer : d. 0.001745 sec-1
Description : The angular velocity of hour hand of a watch is a.0.0001745 sec-1 b.0.0001455 sec-1 c.0.0000145 sec-1 d.0.1045 sec-1 e.0.001745 sec-1
Last Answer : b. 0.0001455 sec-1
Description : A man lifts a stone weighting 300 g from the ground to a height of 2m and throws it horizontally with a velocity of 6 m/sec. The work done by the man is a.7.686 J b.11.286 J c.5.886 J d.8.343 J e.Tapered bearing
Last Answer : b. 11.286 J