Ans- a. Syndicator
Description : are mounted on the Periphery of a cylinder that rotates inside a closed casing and concave. a) Dummy type c) spike-tooth type b) Hummer type d) Axial flow type
Last Answer : spike-tooth type
Description : It consists of spike tooth cylinder, woven- wire mesh concave and upper casing provided with helical concave. a) Dummy type c) Spike-tooth type b) Hummer type d) Axial flow type
Last Answer : Axial flow type
Description : It consists of beats mounted on a shaft which rotates inside a closed casing and concave. a) Dummy type c) Spike-tooth type c) Hummer type d) Axial flow type
Last Answer : Dummy type
Description : This type thresher consists of corrugated bars are mounted axially on pheripheri of the cylinder. a. Hammer mill c. Dummy d. None of above
Last Answer : Ans- b. Raspbar
Description : Identify the picture. a) Hummer mill type b) Spike-tooth type c) Dummy type d) Axial flow type
Last Answer : Hummer mill type
Description : The dummy type thresher is also termed as a) Rasp bar type thresher b) Hammer mill type thresher c) Spike tooth type thresher d) Syndicator tooth type thresher
Last Answer : Hammer mill type thresher
Description : Axial flow thresher uses a) Raspbar type cylinder b) Serrated disc type c) Spike tooth d) Hammer mill
Last Answer : a) Raspbar type cylinder
Description : Axial flow thresher uses a) Raspbar type cylinder b) Serrated disc type cylinder c) Spike tooth d) Hammer mill
Description : Axial flow thresher utilises (a) Rasp bar cylinder (b) Spike tooth cylinder (c) Hammer mill cylinder (d) Peg tooth cylinder
Last Answer : (b) Spike tooth cylinder
Description : This type thresher consists of beater mounted on a shaft which rotates inside a closed casing and concave. a. Hammer mill b. Spike tooth d. None of above
Last Answer : Ans- c. Dummy
Description : Which of the following statements of Coast Guard Regulations (46 CFR) concerning battery installations is correct? A. Sign, permanently secured to the battery trays, indicating that 'naked lights or smoking is ... on the bottom. D. Power and lighting batteries must be of the lead-acid type only.
Last Answer : Answer: C
Description : Hand rotary duster consists basically of a blower completely with ..........and a hopper. a. Clutch. c. Flywheel. d. None of above Ans- b. gearbox
Last Answer : Ans- b. gearbox
Description : Consideration of the creep is the most important in case of the (A) Blades of gas turbine (B) Piston of an I. C. engine (C) Flywheel of steam engine (D) Cycle chain
Last Answer : (A) Blades of gas turbine
Description : In threshers what are mounted on the periphery of the cylinder A) Spike tooth type B) Raspbar type C) Syndicator type D) Wire loob type.
Last Answer : Spike tooth type
Description : The Japanese type rotary thresher is used for threshing a) Paddy b) Wheat c) Sunflower d) Safflower
Last Answer : Paddy
Description : The threshing efficiency of thresher depends on a) Cylinder peripheral speed b) Cylinder concave clearance c) Feed rate, moisture content and type of crop d) All are correct
Last Answer : All are correct
Description : A multi type thresher is equipped with a) Spike tooth cylinder b) Rasp bar cylinder c) Hammer mill cylinder d) All of the above
Last Answer : All of the above
Description : Crop factors which affecting thresher preformation. a) Variety of crop, Moisture in crop material b) Feeding chute angle, cylinder types c) Cylinder speed, feed rate d) Cylinder type, feed rate
Last Answer : Variety of crop, Moisture in crop material
Description : Operational factors which affecting thresher preformation. a) Variety of crop, Moisture in crop material b) Feeding chute angle, cylinder type c) Cylinder speed, feed rate d) Cylinder type ,feed rate
Last Answer : Cylinder speed, feed rate
Description : Machine factors which affecting thresher preformation. a) Variety of crop, Moisture in crop material b) Feeding chute angle, cylinder type c) Cylinder speed, feed rate d) Cylinder type ,feed rate
Last Answer : Feeding chute angle, cylinder type
Description : Process of converting STL file model in to layers is called________in RP a.chopping b.slicing c.cutting d.trimming
Last Answer : b.slicing
Description : Cono weeder consist of conical rollers have on the periphery. a. Helical projection c. Interrupted projection d. None of above
Last Answer : Ans- b. serrated projection
Description : Why axial flow compressor is preferred for gas turbines for aeroplanes ?
Last Answer : Because it has low frontal area.
Description : Why the work per kg of air flow in axial flow compressor is less compared to centrifugal compressor for same pressure ratio ?
Last Answer : Isentropic efficiency of axial flow compressor is higher.
Description : In a thresher, by increasing the speed of threshing cylinder a) Threshing efficiency can be increased b) Broken grain loss can be minimized c) Un-threshed grains can be increased d) Straw breakup can be increased Ans. a
Last Answer : ans a
Description : A thresher causes more seed damage if 1. Speed is increased 2. Clearance is increased 3. Feed rate is reduced 4. speed is reduced
Last Answer : ans 1
Description : It is a machine designed for harvesting ,threshing,separating, cleaning and collecting grains while moving through standing crops. a. Weeder b. thresher d. None of above
Last Answer : Ans- c. COMBINE
Description : Different parts of Thresher are A) Feeding device B) Threshing cylinder C) Concave D) All of the above.
Last Answer : All of the above.
Description : The spacing between two adjacent discs in Olpad thresher is a) 5 cm b) 10 cm c) 15 cm d) 20 cm
Last Answer : 15 cm
Description : machine designed for harvesting, threshing , cleaning and collecting grains while moving through standing crops. a) Combine b) Self operated VCR c) Power roller thresher d) Post harvesting technology
Last Answer : Combine
Description : The thresher caused More seed damage if A. Speed is increases B. Clearance is increase C. Feed rate is reduced. D. Speed is reduced
Last Answer : Speed is increases
Description : This type threasher consist of spike tooth cylinder, woven wire mesh concave and upper casing provide with helical louvers. a. Hammer mill c. Dummy d. None of above
Last Answer : Ans- b. Axial flow
Description : Is hammer mill is similar to dummy type, but it is provided with aspirator for cleaning grains. A) True B) False
Last Answer : True
Description : Curved twisted blades are specially suited for m. Minimum tillage of trashy land at shallow depths n. Dried hard soils o. Cutting and pulverisation in wet sticky clay soil p. For operating on the sides of plant bed
Last Answer : p. For operating on the sides of plant bed
Description : All electric cables passing through watertight bulkheads must be _____________. A. installed with watertight stuffing tubes B. grounded on both sides of the bulkhead C. fitted with unions on each side of the bulkhead D. welded on both sides of the bulkhead
Last Answer : Answer: A
Description : Consider the following statements: Air vessels are fitted on the suction and delivery sides of a reciprocating pump to 1. Achieve higher speed without separation. 2. Reduce work in overcoming frictional resistance. 3. Avoid excessive vibration ... 2 & 3 only (c) 2, 3 & 4 only (d) 1, 2, 3 & 4
Last Answer : (d) 1, 2, 3 & 4
Description : This type blades in rotary tiller are Suitable for deep tillage in relatively clean ground, but clogging and wrapping of trashes on the tynes and shafts. a. L c. straight d. None of the above
Last Answer : Ans- b. twisted
Description : This type blades in rotary tiller are more effective in cutting weeds and they do not Pulverize the soil much. b. twisted c. straight d. None of the above
Last Answer : Ans- a. ‘L’
Description : Following is not type of blades ? a) ‗L‘ type blade. c) Twisted blade b) ‗M‘ type blade. d) Straight blade
Last Answer : M‘ type blade.
Description : The following types of blades are used with the rotor in rotary tiller a. ‗L‘ type blade c) both A & B b. Twisted blade d) chisel plough
Last Answer : both A & B
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 : The angular acceleration of a flywheel decreases uniformly from 8 rad/sec2 to 2 rad sec2 in 6 sec at which time its angular velocity is 42 rad/sec. The initial angular velocity was a.12 rad/sec b.24 rad/sec c.30 rad/sec d.3 rad/sec e.6 rad/sec
Last Answer : a. 12 rad/sec
Description : A flywheel starting from rest and accelerating uniformly performs 25 revolutions in 5 sec. Its angular velocity in rpm after 10 seconds would be a.50 rpm b.20 rpm c.25 rpm d.60 rpm e.45 rpm
Last Answer : b. 20 rpm
Description : A flywheel weighs 400 kg and has a radius of gyration of 30 cm about its axis of rotation. It is mounted on a shaft subjected to a moment of 40 kgm. If the flywheel starts from restits speed after 3 seconds wil be a.10.9 rad/sec b.19.0 rad/sec c.51.2 rad/sec d.3.33 rad/sec e.16.35 rad/sec
Last Answer : d. 3.33 rad/sec
Description : A 100 kg flywheel having a radius of gyration of 1 m is rotating at 1000 rpm. The angular momentum of the flywheel about its axis of rotation, in kg m2/s is a.1000 b.107 dynes c.10000 d.10470 e.5235
Last Answer : d. 10470
Description : Why the electric motor of a fan with backward curved blades is never got overloaded under any condition ?
Last Answer : The maximum power is consumed at about 70% of maximum flow in case’of fan with backward blades. For higher flow, power consumption gets lower.
Description : Induced draft fans provided in large thermal power plant boilers have __________ blades. (A) Forward curved (B) Backward curved (C) Double curved (D) Radial or straight
Last Answer : (B) Backward curved
Description : In a flail harvester, the cutting operation is performed by a) Horizontally rotating circular blades b) Vertically rotating circular blades c) Knives mounted on a horizontal shaft d) Knives mounted on a vertical shaft Ans. c
Last Answer : ans c
Description : Notched disc blades on disc harrows are provided to a) Enhance penetration b) Improve balancing of gangs c) Save on steel d) Reduce draft
Description : Cylinder mower has rotating blades arranged in cylindrical form. a. Straight c. inclined. d. None of above
Last Answer : Ans- b. helical