Description : In _____________ injection system only one pump is sufficient for multi-cylinder engine. a) air b) mechanical c) compression fuel d) common rail
Last Answer : Answer: d Explanation: None.
Description : D-MPFI system uses a) port injection b) direct injection c) manifold injection d) throttle body injection
Last Answer : Answer: b Explanation: D-MPFI system uses direct injection and L-MPFI system uses port injection while multipoint fuel injection system uses port injection and throttle body injection.
Description : L-MPFI system uses a) port injection b) direct injection c) manifold injection d) throttle body injection
Last Answer : Answer: a Explanation: L-MPFI system uses port injection while multi-point fuel injection system uses port injection and throttle body injection while D-MPFI system uses direct injection.
Description : Commercial available medium size machines have a speed range of ______ . (a) 200 to 400 r.p.m. (b) 600 to 1000 r.p.m. (c) 1000 to 1500 r.p.m. (d) 2000 to 2500 r.p.m.
Last Answer : (d) 2000 to 2500 r.p.m.
Description : The maximum temperature in the I.C engine cylinder is of the order of a. 500 – 1000 C b. 1000 – 1500 C c. 1500 – 2000 C d. 2000 – 2500 C
Last Answer : ANSWER d. 2000 – 2500 C
Description : At lower temperatures and pressures, the latent heat of vaporization of a refrigerant (a) decreases (b) increases (c) remains same (d) depends on other factors
Last Answer : Ans: b
Description : Removal of air from the pipeline is termed as ____________ in injection system. a) bleeding b) wound c) sweating d) none of the mentioned
Last Answer : Answer: a Explanation: Generally, the removal of air from the pipeline is termed as bleeding in injection system.
Description : Continuous injection system usually has a) plunger pump b) rotary pump c) gear pump d) vane pump
Last Answer : Answer: b Explanation: In common use continuous injection system usually has rotary pump.
Description : In glycoproteins the carbohydrate is in the form of disaccharide units, the number of units are (A) 50–100 (B) 200–300 (C) 400–500 (D) 600–700
Last Answer : Answer : D
Description : Amylose contains glucose units (A) 100–200 (B) 200–300 (C) 300–400 (D) 500–600
Last Answer : C
Description : The frequency of operation is per minute A. 600 cycles C. 400 cycles B. 100 cycles. D. 200 cycles
Last Answer : 400 cycles
Description : What is Pre Heating Temperature of rail ends in AT Welding? (i) 300 ± 20oC (ii) 400 ± 20oC (iii) 500 ± 20oC (iv) 600 ± 20oC *
Last Answer : (iv) 600 ± 20oC *
Description : For protection of level crossing gate in an emergency on BG double line the Gateman should place one detonator at one place and 3 detonators at a subsequent place at a distance of ------- a) and------ ... c) 500 meters and 1000 meters d) 600 meters and 1200 meters* e) 800 meters in 1500 meters
Last Answer : d) 600 meters and 1200 meters*
Description : Solid injection in CI engine means injection of A. solid fuel only B. liquid fuel only C. liquid fuel and air D. solid fuel and air
Last Answer : ANSWER : B
Description : Solid injection is also called ________________ a) air injection b) mechanical injection c) compression fuel injection d) none of the mentioned
Last Answer : Answer: b Explanation: Generally, solid injection is also called mechanical injection.
Description : The methods used on fuel injection are : a) air injection b) mechanical injection c) solid fuel injection d) all of the mentioned
Last Answer : Answer: d Explanation: The methods used on fuel injection are air injection, mechanical injection and solid fuel injection.
Description : In electronic fuel injection, there is improvement in the _____________ efficiency due to comparatively less resistance in the intake manifolds which will cause less pressure losses. a) mechanical b) volumetric c) overall d) none of the mentioned
Last Answer : Answer: b Explanation: In electronic fuel injection, there is improvement only in the volumetric efficiency due to comparatively less resistance in the intake manifolds which will cause less pressure losses and no other efficiencies are hindered.
Description : The _____________ sensor, senses rotation of engine camshaft for speed and timing of injection. a) throttle position b) manifold pressure c) camshaft position d) knock
Last Answer : Answer: c Explanation: The camshaft position sensor, senses rotation of engine camshaft for speed and timing of injection whereas the throttle position sensor, senses the movement of the throttle ... engine intake manifold so that the mixture strength can be adjusted with changes in engine load.
Description : With EFI of diesel engines a) sharp start and stop is not possible b) very high injection pressure can be obtained c) sudden cylinder cut-off is impossible d) diagnostic properties are poor
Last Answer : Answer: b Explanation: Generally, with EFI of diesel engines very high injection pressure can be obtained.
Description : A 4S diesel engine, when running at 2000 rpm has an injection duration of 1.5 ms.What is the corresponding of the crank angle in degrees? (a) 18° (b) 9° (c)36° (d) 15°
Last Answer : Ans :a
Description : Which of the following factors increases the tendency of knocking in the CI engines? (a) Increasing both the r and coolant temperatures (b) Increasing both the speed and the injection advance (c) Increasing the speed, injection advance and coolant temperature (d) Increasing the compression ratio
Last Answer : Ans :c
Description : The tendency of knocking in CI engine reduces by (a) High self ignition temperature of fuel (b) Decrease in jacket water temperature (c) Injection of fuel just before TDC (d) Decrease in injection pressure
Description : In a 4 S diesel engine, the term ‘squish’ refers to the (a) Injection of fuel in the precombustion chamber (b) Discharge of gases from the precombustion chamber (c) Entry of air into the combustion chamber (d) Stripping of fuel from the core
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
Description : Mixing of air and fuel in the diesel engine occurs in a. injection pump b. carburetor c. engine cylinder d. inlet manifold
Last Answer : ANSWER c. engine cylinder
Description : Rate of burning in the compression ignition engine can be controlled by a. rate of injection of fuel b. rate of air taken into carburetor c. both a. and b. d. none of the above
Last Answer : ANSWER a. rate of injection of fuel
Description : Whenthecrankshaft of 4-stroke running at 1500 rpm thecamshaftwillrun at A. 3000 rpm B. 6000 rpm C. 1500 rpm D. 750 rpm
Last Answer : ANSWER : D
Description : A two stroke engine has a speed of 750 rpm. A four stroke engine having an identical cylinder size runs at 1500 rpm. The theoretical output of the two stroke engine will (a) Be twice that of the four stroke ... ) Be the same as that of the four stoke (d) Depend upon whether it is a CI or SI engine
Description : The daily water allowance for normal adult (60 kg) is about (A) 200–600 ml (B) 500–800 ml (C) 800–1500 ml (D) 1800–2500 ml
Description : The cutter bar of a tractor operated on owner makes strokes/min (a) 400 – 500 (b) 500 – 750 (c) 800 – 1200 (d) 1250 – 1500
Last Answer : (c) 800 – 1200
Description : Service life of CMS crossing ( 52 Kg rail) is:- (a) 400 GMT. (b) 300 GMT. (c) 200 GMT. (d) 150 GMT.*
Last Answer : (d) 150 GMT.*
Description : Service life of improved SEJ of 60 Kg rail is:- (a) 400 GMT. (b) 300 GMT. (c) 200 GMT.* (d) 150 GMT.
Last Answer : (c) 200 GMT.
Description : Service life of Glued insulated rail joint of 60 Kg rail is:- (a) 300 GMT. (b) 200 GMT.* (c) 400 GMT. (d) 150 GMT.
Last Answer : (b) 200 GMT.
Description : Steam pressures usually used in thermal power plants are (A) 5 kg/cm2 to 10 kg / cm2 (B) 50 kg/cm2 to 100 kg / cm2 (C) 110 kg/cm2 to 170 kg / cm2 (D) 200 kg/cm2 to 215 kg / cm2
Last Answer : Ans: C
Description : A ultra-supercritical steam generator operates at pressures above the critical pressure- a. 2400 psi b. 1500 psi c. 3200 psi d. 4600 psi
Last Answer : c. 3200 psi
Description : Minimum excretory urinary volume for waste products elimination during 24 hrs is (A) 200–300 ml (B) 200–400 ml (C) 500–600 ml (D) 800 ml
Last Answer : Answer : C
Description : The total body water in ml/kg body weight in average normal young adult male is about (A) 200 (B) 400 (C) 600 (D) 1000
Description : The daily requirement of calcium is (A) 200 mg (B) 400 mg (C) 800 mg (D) 600 mg
Description : Maximum root zone depth for Maize (a) 200-300 mm (b) 400-600 mm (c) 500-600 mm (d) 350- 450 mm
Last Answer : (b) 400-600 mm
Description : Number of meiotic divisions required to produce 200/400 seeds of pea would be (a) 200/400 (b) 400/800 (c) 300/600 (d) 250/500
Last Answer : (d) 250/500.
Description : Orbital radius of GPS satellites is approximately: (A) 15,200 km (B) 26,600 km (C) 18,400 km (D) 36,000 km
Last Answer : Answer: Option B
Description : The mass of 2.5 m3 of a certain liquid is 2 tonnes. Its mass density is (A) 200 kg/m3 (B) 400 kg/m3 (C) 600 kg/m3 (D) 800 kg/m
Last Answer : Answer: Option D
Description : Typical human voice is centered around ________Hz. (A) 200-400 (B) 280-3000 (C) 400-600 (D) 1400-1800
Last Answer : (B) 280-3000
Description : A sewer has a diameter of 300 mm and slop of 1 in 400. While running full it has a mean velocity of 0.7 m/s. If both the diameter and slope are doubled (to respectively be 600 mm and 1 in 200), what will be the changed mean velocity ... 's formula. (a) 1.59 m/s (b) 2.80 m/s (c) 0.90 m/s (d) 1.00 m/s
Last Answer : (a) 1.59 m/s
Description : Two alternators rated are 200 KW at 4% regulation, 400 KW 5% regulation operating in parallel at 50HZ , when supply 600 KW the new frequency is a) 50 b) 49 c) 51.3 d) 47.7
Last Answer : Ans: 47.7
Description : Optimum operating cylinder speed for the power operated maize sheller is a) 200-400rpm b) 400-600rpm c) 600-800rpm d) 1000-1200rpm
Last Answer : c) 600-800rpm
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
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
Description : With direct water cooling it is possible to have ratings of about (a) 200 MW (b) 300 MW (c) 400 MW (d) 600 MW
Last Answer : (d) 600 MW
Description : P and Q undertake to do a piece of job for Rs.1200. P alone can do it in 12 days while Q alone can do it in 16 days. With the help of R , they finish it in 6 days. Find the share of P,Q & R. a) 400,600,200 b) 200,400,600 c) 450,400,250 d) 600,450,150
Last Answer : D R;s 1 day work = 1/6 – (1/12 + 1/16) =1/6 – 1/12 – 1/16 = (8-4-3)/48 = 1/48 P:Q:R = ratio of 1 day work = 1/12:1/16 : 1/48 =4:3:1 P’s share = Rs(1200*4/8) =Rs.600 Q’s share = Rs(1200 * 3/8) =Rs.450 R’s share = Rs(1200 * 1/8) =Rs.150