Diesel used in naval applications has a minimum cetane number of (A) 25 (B) 35 (C) 45 (D) 65

Diesel used in naval applications has a minimum cetane number of
(A) 25
(B) 35
(C) 45
(D) 65
by

1 Answer

Answer :

(C) 45
by

Related questions

Cetane number of diesel used in trucks may be about (A) 50 (B) 14 (C) 35 (D) 85

Description : Cetane number of diesel used in trucks may be about (A) 50 (B) 14 (C) 35 (D) 85

Last Answer : (A) 50

Cetane number of high speed diesel must be ≥ (A) 30 (B) 45 (C) 75 (D) 95

Description : Cetane number of high speed diesel must be ≥ (A) 30 (B) 45 (C) 75 (D) 95

Last Answer : (B) 45

A mixture containing 65% of iso-octane and 35% of normal heptane will have a) cetane number 65 b) octane number 65 c) cetane number 35 d) octane number 35

Description : A mixture containing 65% of iso-octane and 35% of normal heptane will have a) cetane number 65 b) octane number 65 c) cetane number 35 d) octane number 35

Last Answer : Answer: b Explanation: A mixture containing 65% of iso-octane and 35% of normal heptane will have octane number 65 as octane number is the number percentage containing iso-octane.

A sewer pipe contains 1 mm sand particles of specific gravity 2.65 and 5 mm organic particles of specific gravity 1.2, the minimum velocity required for removing the sewerage, is A. 0.30 m/sec B. 0.35 m/sec C. 0.40 m/sec D. 0.45 m/sec

Description : A sewer pipe contains 1 mm sand particles of specific gravity 2.65 and 5 mm organic particles of specific gravity 1.2, the minimum velocity required for removing the sewerage, is A. 0.30 m/sec B. 0.35 m/sec C. 0.40 m/sec D. 0.45 m/sec

Last Answer : ANS: D

Disc angle in a standard disc plough varies from a. 25-35 ° c. 45-55 ° d. 55-65 °

Description : Disc angle in a standard disc plough varies from a. 25-35 ° c. 45-55 ° d. 55-65 °

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Which of the following additives improves the cetane number of diesel? (A) Amyl nitrate (B) Ethyl mercaptan (C) Naphthenic acid (D) Tetra ethyl lead

Description : Which of the following additives improves the cetane number of diesel? (A) Amyl nitrate (B) Ethyl mercaptan (C) Naphthenic acid (D) Tetra ethyl lead

Last Answer : (B) Ethyl mercaptan

Diesel index (an alternative index for expressing the quality of diesel) is (A) Determined by using a test engine (B) Not related to aniline point (C) Equal to cetane number plus 3 (D) All (A), (B) & (C)

Description : Diesel index (an alternative index for expressing the quality of diesel) is (A) Determined by using a test engine (B) Not related to aniline point (C) Equal to cetane number plus 3 (D) All (A), (B) & (C)

Last Answer : (C) Equal to cetane number plus 3

Cetane number of a diesel fuel is the measure of its (A) Ignition delay (B) Smoke point (C) Viscosity (D) Oxidation stability

Description : Cetane number of a diesel fuel is the measure of its (A) Ignition delay (B) Smoke point (C) Viscosity (D) Oxidation stability

Last Answer : (A) Ignition delay

Which of the following is an additive used for improving the cetane number of diesel? (A) Tetraethyl lead (B) Tetramethyllead (C) Ethyl nitrate or acetone (D) None of these

Description : Which of the following is an additive used for improving the cetane number of diesel? (A) Tetraethyl lead (B) Tetramethyllead (C) Ethyl nitrate or acetone (D) None of these

Last Answer : (A) Tetraethyl lead

Presence of aromatics in (A) Diesel increases its cetane number (B) Kerosene increases its smoke point (C) Petrol increases its octane number (D) All (A), (B) and (C)

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Last Answer : (C) Petrol increases its octane number

Visbreaking process is used mainly for making (A) High cetane diesel (B) High octane gasoline (C) Fuel oil (D) Smoke free kerosene

Description : Visbreaking process is used mainly for making (A) High cetane diesel (B) High octane gasoline (C) Fuel oil (D) Smoke free kerosene

Last Answer : (C) Fuel oil

A fuel of cetane number 40 has the same ignition quality as a mixture of a) 40% cetane and 60% alpha methyl naphthalene b) 40% alpha methyl naphthalene and 60% cetane c) 40% petrol and 60% diesel d) 40% diesel and 60% petrol

Description : A fuel of cetane number 40 has the same ignition quality as a mixture of a) 40% cetane and 60% alpha methyl naphthalene b) 40% alpha methyl naphthalene and 60% cetane c) 40% petrol and 60% diesel d) 40% diesel and 60% petrol

Last Answer : Answer: a Explanation: A fuel of cetane number 40 has the same ignition quality as a mixture of 40% cetane and 60% alpha methyl naphthalene as cetane number is counted on cetane percentage.

The tendency of a diesel engine to knock increases if a. engine speed is increased b. engine power is increased c. cetane number of the fuel is increased d. compression ratio is increased

Description : The tendency of a diesel engine to knock increases if a. engine speed is increased b. engine power is increased c. cetane number of the fuel is increased d. compression ratio is increased

Last Answer : ANSWER d. compression ratio is increased

Ignition quality of diesel is expressed by a. octane number b. cetane number c. calorific value d. carbon content

Description : Ignition quality of diesel is expressed by a. octane number b. cetane number c. calorific value d. carbon content

Last Answer : ANSWER b. cetane number

For the best results of efficient combustion, high speed diesel engines need an approximate cetane number of a. 100 b. 50 c. 10 d. 5

Description : For the best results of efficient combustion, high speed diesel engines need an approximate cetane number of a. 100 b. 50 c. 10 d. 5

Last Answer : ANSWER b. 50

Write the values of boiling temperature for cetane(diesel).iso-octane(petrol), Butane, Propane an methane fuel and write effect of it on its system.

Description : Write the values of boiling temperature for cetane(diesel).iso-octane(petrol), Butane, Propane an methane fuel and write effect of it on its system.

Last Answer : Write the values of boiling temperature for cetane(diesel).iso-octane(petrol), Butane, Propane an methane fuel and write effect of it on its system.

Carbon content in plain carbon steel is __________ percent. (A) 0.1 to 0.15 (B) 0.35 to 0.45 (C) 0.65 to 0.80 (D) 0.85 to 1.2

Description : Carbon content in plain carbon steel is __________ percent. (A) 0.1 to 0.15 (B) 0.35 to 0.45 (C) 0.65 to 0.80 (D) 0.85 to 1.2

Last Answer : (B) 0.35 to 0.45

Equipment installation cost in a chemical process plant ranges from __________ percent of the purchased equipment cost. (A) 10 to 20 (B) 35 to 45 (C) 55 to 65 (D) 70 to 80

Description : Equipment installation cost in a chemical process plant ranges from __________ percent of the purchased equipment cost. (A) 10 to 20 (B) 35 to 45 (C) 55 to 65 (D) 70 to 80

Last Answer : (B) 35 to 45

Cetane number of petrol is around a. 10 b. 15-20 c. 35 d. 55-70

Description : Cetane number of petrol is around a. 10 b. 15-20 c. 35 d. 55-70

Last Answer : ANSWER b. 15-20

In Groundnut pegging stage comes after — DAS a. 35 b. 45 c. 55 d. 65

Description : In Groundnut pegging stage comes after — DAS a. 35 b. 45 c. 55 d. 65

Last Answer : c. 55

Overall thermal efficiency of a lumpy coal fired suitably designed heating furnace, if operated & maintained properly may be about __________ percent. (A) 10-15 (B) 25-30 (C) 45-50 (D) 65-70

Description : Overall thermal efficiency of a lumpy coal fired suitably designed heating furnace, if operated & maintained properly may be about __________ percent. (A) 10-15 (B) 25-30 (C) 45-50 (D) 65-70

Last Answer : (B) 25-30

Yield of elemental phosphorous from rock phosphate is about __________ percent. (A) 1-2 (B) 15-25 (C) 40-45 (D) 60-65

Description : Yield of elemental phosphorous from rock phosphate is about __________ percent. (A) 1-2 (B) 15-25 (C) 40-45 (D) 60-65

Last Answer : (B) 15-25

Iron content in Indian iron ore is about __________ percent. (A) 80-85 (B) 60-65 (C) 40-45 (D) 20-25

Description : Iron content in Indian iron ore is about __________ percent. (A) 80-85 (B) 60-65 (C) 40-45 (D) 20-25

Last Answer : (B) 60-65

The percentage of alumina and silica in good fire clay vary respectively is (A) 25, 75 (B) 30, 70 (C) 35, 65 (D) All of these

Description : The percentage of alumina and silica in good fire clay vary respectively is (A) 25, 75 (B) 30, 70 (C) 35, 65 (D) All of these

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[(3/8) + (8/3)] – [(4/9) + (9/4)] = ? a) 0.5 b) 0.65 c) 0.9 d) 1.25 e) 0.35

Description : [(3/8) + (8/3)] – [(4/9) + (9/4)] = ? a) 0.5 b) 0.65 c) 0.9 d) 1.25 e) 0.35

Last Answer : ? = [(64+9) / 24] – [(81+16)/36] = (73/24) – (97/36) = (219 - 194)/72 = 25/72 = 0.347 = 0.35 Answer: e)

The summarized balance sheet of Autolight Limited shows the balances of previous and current year of retained earnings Rs. 25,000 and Rs. 35,000. If dividend paid during the current year amounted to Rs. 5,000 then profit earned during the year will be: (a) Rs. 5,000 (b) Rs. 55,000 (c) Rs. 15,000 (d) Rs. 65,000

Description : The summarized balance sheet of Autolight Limited shows the balances of previous and current year of retained earnings Rs. 25,000 and Rs. 35,000. If dividend paid during the current year amounted to Rs. 5,000 then profit earned during ... (a) Rs. 5,000 (b) Rs. 55,000 (c) Rs. 15,000 (d) Rs. 65,000

Last Answer : (c) Rs. 15,000

P started a business in 1990 by investing Rs.25,000. She invested Rs. 10,000 as additional amount in 1991 and her friend Q joined her with an amount of Rs.35,000. P invested another Rs. 10,000 in 1992 and R joined them with Rs. 35,000. At the end of these 3 years, they earned a profit of Rs. 150,000. Find Q's share? a) Rs.50,000 b) Rs.65,000 c) Rs.75,000 d) Rs.15,000

Description : P started a business in 1990 by investing Rs.25,000. She invested Rs. 10,000 as additional amount in 1991 and her friend Q joined her with an amount of Rs.35,000. P invested another Rs. 10,000 in 1992 and R joined them ... ,000. Find Q's share? a) Rs.50,000 b) Rs.65,000 c) Rs.75,000 d) Rs.15,000

Last Answer : Answer: A) P invested Rs.25,000 for 12 months, Rs.(25000 + 10000) for 12 months, , Rs.(25000 + 10000 + 10000) for 12 months. i.e., P invested Rs.25,000 for 12 months, Rs.35000 for 12 months Rs.45000 for 12 months. Q ... Q's share = Rs.(1,50,000 x 2 /(3+2+1)) = Rs.(1,50,000 x 2/6) = Rs.50,000

Out of 100 kcal/second of incident radiant energy on the surface of a thermally transparent body, 300 kcal/second is reflected back. If the transmissivity of the body is 0.25, the emissivity of the surface will be (A) 0.35 (B) 0.45 (C) 0.55 (D) 0.85

Description : Out of 100 kcal/second of incident radiant energy on the surface of a thermally transparent body, 300 kcal/second is reflected back. If the transmissivity of the body is 0.25, the emissivity of the surface will be (A) 0.35 (B) 0.45 (C) 0.55 (D) 0.85

Last Answer : (B) 0.45

Ash content in the middling coal (a byproduct of coal washeries) in India ranges between __________ percent. (A) 15 to 25 (B) 35 to 45 (C) 55 to 75 (D) 75

Description : Ash content in the middling coal (a byproduct of coal washeries) in India ranges between __________ percent. (A) 15 to 25 (B) 35 to 45 (C) 55 to 75 (D) 75

Last Answer : (B) 35 to 45

'Utilities' in a chemical process plant includes compressed air, steam, water, electrical power, oxygen, acetylene, fuel gases etc. Utility costs for ordinary chemical process plants ranges roughly from __________ percent of the total product cost. (A) 1 to 5 (B) 10 to 20 (C) 25 to 35 (D) 35 to 45

Description : 'Utilities' in a chemical process plant includes compressed air, steam, water, electrical power, oxygen, acetylene, fuel gases etc. Utility costs for ordinary chemical process plants ranges roughly from __________ percent of the total product ... 1 to 5 (B) 10 to 20 (C) 25 to 35 (D) 35 to 45

Last Answer : (B) 10 to 20

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50'. What number is missing? -Riddles

Description : 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50'. What number is missing? -Riddles

Last Answer : 22

A reinforced concrete cantilever beam is 3.6 m long, 25 cm wide and has its lever arm 40 cm. It carries a load of 1200 kg at its free end and vertical stirrups can carry 1800 kg. Assuming concrete to carry one-third of the diagonal tension and ignoring the weight of the beam, the number of shear stirrups required, is (A) 30 (B) 35 (C) 40 (D) 45

Description : A reinforced concrete cantilever beam is 3.6 m long, 25 cm wide and has its lever arm 40 cm. It carries a load of 1200 kg at its free end and vertical stirrups can carry 1800 kg. Assuming concrete to carry one- ... beam, the number of shear stirrups required, is (A) 30 (B) 35 (C) 40 (D) 45

Last Answer : Answer: Option C

The average age of the whole class is 12.05 years. The average age of all girls is 12.5 years and the average age of boys is 11.75 years. If the total number of boys is 45 then what is the total number of girls in the class? a) 20 b) 25 c) 30 d) 35 e) 40

Description : The average age of the whole class is 12.05 years. The average age of all girls is 12.5 years and the average age of boys is 11.75 years. If the total number of boys is 45 then what is the total number of girls in the class? a) 20 b) 25 c) 30 d) 35 e) 40

Last Answer : Let the number of girls be x. The number of boys is 45. :. Total age of boys and girls in the class = (x+45) × 12.05 or, (x+45) × 12.05 = 45 × 11.75 + x × 12.5 or, 12.05x + 542.25 = 528.75 + 12.5x or, 13.5 = 0.45x or, x = 13.5/0.45 = 30 Answer is: c)

A officer undertakes to complete a job in 250 days. He employs 300 male for 50 days and they complete 1/2 of the work . He then reduces the number of male to 100, who work for 120 days, after which there are 20 days holidays. How many male must be employed for the remaining period to finish the work? a) 25 b) 50 c) 45 d) 35

Description : A officer undertakes to complete a job in 250 days. He employs 300 male for 50 days and they complete 1/2 of the work . He then reduces the number of male to 100, who work for 120 days, after which there ... male must be employed for the remaining period to finish the work? a) 25 b) 50 c) 45 d) 35

Last Answer : B 300 male in 50 days do = 1/2work 1 male in 1 day does = ½*1/50*1/300 work 100 male in 120 days do = ½ *1/50*1/300 *100*120 =2/5 work Total work done = ½ + 2/5 =(5+4)/10=9/10 ... is done in 50 days by 300 male 1/10 work is done in 60 days by =300*50*1*2/10*60 =50 male

The minimum water-cement ratio is (a) 0.35 (b) 0.45 (c) 0.50 (d) None of these

Description : The minimum water-cement ratio is (a) 0.35 (b) 0.45 (c) 0.50 (d) None of these

Last Answer : (a) 0.35

Minimum depth of space for wheel flange form rail level in B.G. is …… mm (A) 35 (B) 38* (C) 42 (D) 45

Description : Minimum depth of space for wheel flange form rail level in B.G. is …… mm (A) 35 (B) 38* (C) 42 (D) 45

Last Answer : (B) 38*

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 compensation, the trajectory of the cutter will be a.(-5, 0), (-5, 35), (55, 35), (55,-5), (-5,-5) b.(0,-5), (55,-5), (55, 35), (-5, 35), (-5,-5) c.(5, 5), (5, 25), (45, 25), (45, 5), (5, 5) d.(5, 5), (45, 5), (45, 25), (5, 25), (5, 5)

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)

A machine requires an effort of 10 kg to lift a load of 250 kg and an effort of 13 kg for a load of 400 kg. The effort required to lift a load of 500 kg will be a.25 kg b.107 dynes c.15 kg d.35 kg e.45 kg

Description : A machine requires an effort of 10 kg to lift a load of 250 kg and an effort of 13 kg for a load of 400 kg. The effort required to lift a load of 500 kg will be a.25 kg b.107 dynes c.15 kg d.35 kg e.45 kg

Last Answer : c. 15 kg

Daily output of urea in grams is (A) 10 to 20 (B) 15 to 25 (C) 20 to 30 (D) 35 to 45

Description : Daily output of urea in grams is (A) 10 to 20 (B) 15 to 25 (C) 20 to 30 (D) 35 to 45

Last Answer : Answer : C

The least distance of distinct vision is – (1) 35 cm (2) 25 cm (3) 45 cm (4) 15 cm

Description : The least distance of distinct vision is – (1) 35 cm (2) 25 cm (3) 45 cm (4) 15 cm

Last Answer : (2) 25 cm Explanation: Least distance of distinct vision is the minimum object's distance that is able to produce a distinct image on the retina. This distance is about 25 cm from the eye. However, it varies with age. For infants the least distance of distinct vision is about 5 to 8 cm.

The contribution of Agricultural sector to the gross domestic product (GDP) in India in the year 2004-05 has been nearly (A) 25 % (B) 45 % (C) 35 % (D) 55 %

Description : The contribution of Agricultural sector to the gross domestic product (GDP) in India in the year 2004-05 has been nearly (A) 25 % (B) 45 % (C) 35 % (D) 55 %

Last Answer : (A) 25 %

One gram of glucose produces how much fat or oil (A) 0.25 g (B) 0.35 g (C) 0.45 g (D) 0.32 g

Description : One gram of glucose produces how much fat or oil (A) 0.25 g (B) 0.35 g (C) 0.45 g (D) 0.32 g

Last Answer : (C) 0.45 g

The disc angle of a disc plough ranges from? [a] 40-45 degree [b] 30-35 degree [c] 20-25 degree [d] 45-50 degree [e] None of the above

Description : The disc angle of a disc plough ranges from? [a] 40-45 degree [b] 30-35 degree [c] 20-25 degree [d] 45-50 degree [e] None of the above

Last Answer : [a] 40-45 degree

The height of a water column equivalent to a pressure of 0.15 MPa is (A) 15.3 m (B) 25.3 m (C) 35.3 m (D) 45.3 m

Description : The height of a water column equivalent to a pressure of 0.15 MPa is (A) 15.3 m (B) 25.3 m (C) 35.3 m (D) 45.3 m

Last Answer : The height of a water column equivalent to a pressure of 0.15 MPa can be calculated using the hydrostatic equation: Pressure (P) = Density of water (rho) * Acceleration due to gravity (g) * Height (h) ... s^2) = 0.15 m Therefore, the height of the water column would be approximately 0.15 meters.

In case of foundations on sandy soil, maximum permissible differential settlement, is usually limited to (A) 15 mm (B) 25 mm (C) 35 mm (D) 45 m

Description : In case of foundations on sandy soil, maximum permissible differential settlement, is usually limited to (A) 15 mm (B) 25 mm (C) 35 mm (D) 45 mm

Last Answer : Answer: Option B

In disc ploughs tilt angel varies between b. 25-35° c. 35-45° d. 45-50°

Description : In disc ploughs tilt angel varies between b. 25-35° c. 35-45° d. 45-50°

Last Answer : Ans -   a. 15-25°

How many HP for tractor is suitable suitable for 20 hectares farm? A. 10-15 C. 20-25. B. 30-35 D. 40-45

Description : How many HP for tractor is suitable suitable for 20 hectares farm? A. 10-15 C. 20-25. B. 30-35 D. 40-45

Last Answer : 20-25

What is the maximum percent of energy recovered if the steam is condensed before reintroduced to system? a) 25 b) 35 c) 45 d) 55

Description : What is the maximum percent of energy recovered if the steam is condensed before reintroduced to system? a) 25 b) 35 c) 45 d) 55

Last Answer : 35

25,?,45,58,73,90,109 a) 33 b) 34 c) 35 d) 38 e) 36

Description : 25,?,45,58,73,90,109 a) 33 b) 34 c) 35 d) 38 e) 36

Last Answer : The series is 3×5+10=25,4×6+10=34,5×7+10=45,6×8+10=58,7×9+10=73,8× 10+10=90,9×11+10=109 Hence missing term=34 Answer: b)

For a single mode optical cable with 0.25 dB/km loss, determine the optical power 100 km from a 0.1-mW light source. ∙ A. -45 dBm ∙ B. -15 dBm ∙ C. -35 dBm

Description : For a single mode optical cable with 0.25 dB/km loss, determine the optical power 100 km from a 0.1-mW light source. ∙ A. -45 dBm ∙ B. -15 dBm ∙ C. -35 dBm

Last Answer : ∙ C. -35 dBm