Description : 40 optimum working temperature for diesel engine is about ∙ 88-90°c ∙ 71-82°c ∙ 60-70°c ∙ 90-100°c
Last Answer : ∙ 88-90°c
Description : onstant speed governors are used on ∙ Tractor engine diesel ∙ Stationary diesel engine ∙ Petrol engine ∙ None of the above
Last Answer : Stationary diesel engine
Description : variable speed governors are used on ∙ Tractor engine(diesel) ∙ Stationary engine (diesel) ∙ Petrol engine ∙ None of the above
Last Answer : ∙ Tractor engine(diesel)
Description : For heavier fuels the cooling system of an internal combustion engine, the temperature is maintained at a) 78 to 80°C b) 80 to 84 °C c) 85 to 88°C d) 88 to 90°C
Last Answer : d) 88 to 90°C
Description : In a cup, tea cools from 90°C to 80°C in exactly one minute. It will cool from 70°C to 60°C in (a) less than one minute (b) exactly one minute (c) nearly one minute (d) more than one minute
Last Answer : Ans:(d)
Description : or the selection of endospore-forming bacteria, a mixed culture can be heated at A- 80°C for 10 minutes B- 70°C for 10 minutes C- 60°C for 10 minutes D- 90°C for 10 minutes
Last Answer : 80°C for 10 minutes
Description : At what temperature is gypsum heated to form Plaster of Paris?a) 90°C b) 100°C c) 110°C d) 120°C
Last Answer : b) 100°C
Description : iesel engine has less reserve torque then spark ignition because ∙ Torque-speed curve is governed by volumetric efficiency of fuel pump and engine cylinder ∙ Torque is a function of thermal efficiency ∙ Diesel engine has generally low speed engine ∙ None of the above
Last Answer : ∙ Torque is a function of thermal efficiency
Description : Compression pressure in petrol engine cylinder is a) 6-10 kg/cm2 b) 10-20 kg/cm2 c) 20-35 kg/cm2 d) 35-40 kg/cm2
Last Answer : a) 6-10 kg/cm2
Description : Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is (A) 7 kgf/cm2 and 70 °C (B) 1000 kgf/cm2 and 100°C (C) 7 kgf/cm2 and 700°C (D) 1 kgf/cm2 (gage) and 70°C
Last Answer : (A) 7 kgf/cm2 and 70 °C
Description : Turbo chargers or super chargers increases engine power by A. 10-20% C. 50-60% B. 20-30% D. 90-100%
Last Answer : A. 10-20%
Description : Flooding nozzle have spray angle a) 100-150 b) 90-100 c) 60-95 d) 30-45
Last Answer : a) 100-150
Description : the time taken to plough one acre farm with 35 hp tractor is : A)60 minutes b)75 minutes C)90 minutes d)120 minutes
Last Answer : b)75 minutes
Description : How many units of electricity per hp per hour is used by electric motor: A)0.44 b)0.66 C)0.88 d)1.10
Last Answer : C)0.88 d
Description : Gears are generally used in the transmission box are ∙ spur gear only ∙ helical gear only ∙ helical and spur gear gears ∙ bevel gears
Last Answer : ∙ helical gear only
Description : pecific gravity of fully charged storage battery is ∙ 1.15 ∙ 1.50 ∙ 1.28 ∙ 2.15
Last Answer : ∙ 1.28
Description : In a counter flow heat exchanger, hot fluid enters at 170°C & leaves at 150°C, while the cold fluid enters at 50°C & leaves at 70°C. The arithmetic mean temperature difference in this case is __________ °C. (A) 20 (B) 60 (C) 120 (D) ∞
Last Answer : (D) ∞
Description : Spiral gear are used for transmitting power between two shaft Inclined at a. Right angle to each other and axes can intersect b. Right angle to each other and axes cannot intersect c. At angle slightly lesser or greater than 90 of axles can meet d. None of the above
Last Answer : c. At angle slightly lesser or greater than 90 of axles can meet
Description : In an offset disc harrow the angle between two gang is a) less than 90 degree b) 90 degree c) greater than 90 degree d) 180degree
Last Answer : a) less than 90 degre
Description : n single action disc harrow the two gangs are at set single a) less than 90 degree b) at 90 degree c) greater than 90 degree d) at 180 degree
Last Answer : c) greater than 90 degree
Description : The sound level of an agricultural tractor should not exceed : I. 110 dB J. 100 dB K. 90 dB L. 80 dB
Last Answer : K. 90 dB
Description : Juice extraction capacity of vertical three roller type bullock down sugercane crusher E. 50-70% F. 70-90% G. 90-100% H. 30-50%
Last Answer : E. 50-70%
Description : The number of heart beats on an average in an adult human is in the range of (1) 60-65 (2) 66-70 (3) 71-80 (4) 85-90
Last Answer : 71-80
Description : Superchargers are driven by A. Electric current from the battery B. Exhaust gases from engine C. Direct connection with the engine power D. None of the above
Last Answer : C. Direct connection with the engine power
Description : Turbo chargers are driven by A. Direct connection with engine power B. Exhaust gases from engine C. Electric current from the battery D. None of the above
Last Answer : B. Exhaust gases from engine
Description : .When the valves are carried in engine bioel at one side of each cylinder is called A. Valves in head arrangements B. L-head C. I-head D. None of the above
Last Answer : B. L-head
Description : Main function of cutout relay in electrical circuit is A. To prevent the reversal of current flow from the battery when dynamo speed (engine speed) reduces. B. To restrict the maximum output at ... deliver current to the battery or to the lightening and ignition circuit. D. None of the above
Last Answer : A. To prevent the reversal of current flow from the battery when dynamo speed (engine speed) reduces.
Description : A traction fitted with diesel engine will have good slogging ability as lugging ability if it has a reserve of a.500 rpm d.200 rpm c.300 rpm e.1000 rpm
Last Answer : a.500 rpm
Description : Rated speed of an engine is the speed at which an engine devlopes (A) Maximum crankshaft torque (B) Maximum brake horse power output (C) Maximum thermal efficiency (D) Maximum drawback pull
Last Answer : (B) Maximum brake horse power output
Description : Engine power output is a function of A. Crank shaft torque B. Speed C. Both (A) and (B) D. None of the above
Last Answer : Engine power output is a function of A. Crank shaft torque B. Speed C. Both (A) and (B) D. None of the above
Description : An engine is called I or valve in head engine when a) Valve are immediately above the cylinder b) Both valves are on one side c) Both valves are on opposite direction d) None of the above
Last Answer : d) None of the above
Description : The estimated useful life of diesel engine is: A)8 years b)10 years C)12 years d)14years
Last Answer : b)10 years
Description : which of the following tractor has the cair cooled engine? A)ford b)eicher C)international d)hmt
Last Answer : b)eicher
Description : GOOD EARTH is one of the important make of (A) tractor (B) electric motor (C) diesel engine (D)power tiller
Last Answer : A) tractor
Description : Connecting rod of two stroke engine is subjected to A. Compressive load B. Tensile load C. Both compressive and tensile load D. None of the above
Last Answer : A. Compressive load
Description : Connecting rod of four stroke engine is subjected to A. Compressive load B. Tensile load C. Both compressive and tensile load D. None of the above
Last Answer : C. Both compressive and tensile load
Description : Injection pressure of fuel nozzle in diesel engine is a) 30-45 kg/cm2 b) 50-100 kg/cm2 c) 120-200 kg/cm2 d) 200 kg/cm2
Last Answer : c) 120-200 kg/cm2
Description : Compression pressure in diesel engine cylinder is a) 6-10 kg/cm2 b) 10-20 kg/cm2 c) 20-35 kg/cm2 d) None of the above
Last Answer : c) 20-35 kg/cm2
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)
Description : Piston speed for high speed engine is (a) 300-500 m/min (b) 100-300 m/min (c) 500-700 m/min (d) >700m/min
Last Answer : (a) 300-500 m/min
Description : peed of a high speed engine is (a) 1000rpm (d) none of the above
Last Answer : (c) >1000rpm
Description : peed of a medium speed engine is (a) 1000rpm (d) none of the above
Last Answer : (b) 350-1000 rpm
Description : Speed of a low speed engine is (a) 1000rpm (d) none of the above
Last Answer : (a)
Description : Firing order of a six cylinder engine in which no two adjacent cylinder have power stroke is (a) 1 5 3 6 2 4 (b) 1 2 3 4 5 6 (c) 1 5 4 6 3 2 (d) 1 4 2 5 6 3
Last Answer : (a) 1 5 3 6 2 4
Description : hen displacement volume is divided by piston displacement, what will we obtained (a) number of cylinders (b) number of power stroke per minute for all cylinders (c) number of revolution of the crankshaft (engine) (d) number of revolution of crankshaft × number of cylinder
Last Answer : (b) number of power stroke per minute for all cylinders
Description : Stroke bore ratio for tractor engine is (a) 1.25 (b) 1.45 (c) 1.75 (d) 2.00
Last Answer : (a) 1.25
Description : Air output of a duster is given by formula a) Q= 60×A×V b)Q= 60×A×(2GH/Y) c) Q= 240×A×h d) all of the above
Last Answer : d) all of the above
Description : Brass is an alloy of copper and zinc having the relative percentage (A) 60-70% Cu and 30-40% Zn (B) 50-60% Cu and 40-50% Zn (C) 40-50 % Cu and 60-50% Zn (D) 30-40 % Cu and 60-70% Zn
Last Answer : A) 60-70% Cu and 30-40% Zn
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
Description : Spary angle for fan nozzle and hollow cone nozzle a) 40-50 b) 50-60 c) 60-95 d) 100-150
Last Answer : c) 60-95