Softening point of bitumen to be used for read construction at a place where maximum temperature is 40°C should be (A) Less than 40°C (B) Greater than 40°C (C) Equal to 40°C (D) None of the above

Softening point of bitumen to be used for read construction at a place where maximum
temperature is 40°C should be
(A) Less than 40°C
(B) Greater than 40°C
(C) Equal to 40°C
(D) None of the above
by

1 Answer

Answer :

Answer: Option B
by

Related questions

__________ test is done to find out the softening point of bitumen. (A) Impact (B) Ball and ring (C) Flame (D) Viscosity

Description : __________ test is done to find out the softening point of bitumen. (A) Impact (B) Ball and ring (C) Flame (D) Viscosity

Last Answer : (B) Ball and ring

Explain the procedure for determining softening point of bitumen.

Description : Explain the procedure for determining softening point of bitumen. 

Last Answer : Procedure for determining softening point of bitumen:- 1) Sample material is heated to a temperature between 750 C to 1000 C above the approximate point until it is completely fluid and is poured in ... glycerin is used in heating medium and the starting temperature is 350 C instead of 50 C.

Explain Softening Point Test on Bitumen with neat sketch.

Description : Explain Softening Point Test on Bitumen with neat sketch.

Last Answer : Softening Point Test: The softening point test is conducted by Ring and Ball method in the laboratory as described below: The test sample of the given bituminous material is put ... values and thus the suitability of the bitumen under test is decided for bituminous pavement construction. 

The ductility value of bitumen for suitability in road construction should not be less than (A) 30 cm (B) 40 cm (C) 50 cm (D) 60 cm

Description : The ductility value of bitumen for suitability in road construction should not be less than (A) 30 cm (B) 40 cm (C) 50 cm (D) 60 cm

Last Answer : Answer: Option C

Select the correct statement. (A) Quantity of binder required for tack coat is less than that required for prime coat (B) Prime coat treatment is given for plugging the voids in water bound macadam during bituminous road construction (C) Seal coat is the final coat over certain previous bituminous pavements (D) A bitumen primer is a high viscosity cutback

Description : Select the correct statement. (A) Quantity of binder required for tack coat is less than that required for prime coat (B) Prime coat treatment is given for plugging the voids in water ... the final coat over certain previous bituminous pavements (D) A bitumen primer is a high viscosity cutback

Last Answer : Answer: Option D

Percentage of free carbon in bitumen is (A) More than that in tar (B) Less than that in tar (C) Equal to that in tar(D) None of the above

Description : Percentage of free carbon in bitumen is (A) More than that in tar (B) Less than that in tar (C) Equal to that in tar (D) None of the above

Last Answer : Answer: Option B

The binder normally used in flexible pavement construction is (A) Cement (B) Lime (C) Bitumen (D) None of the above

Description : The binder normally used in flexible pavement construction is (A) Cement (B) Lime (C) Bitumen (D) None of the above

Last Answer : Answer: Option C

In the penetration macadam construction, the bitumen is (A) Sprayed after the aggregates are spread and compacted (B) Premixed with aggregates and then spread (C) Sprayed before the aggregates are spread and compacted (D) None of the above

Description : In the penetration macadam construction, the bitumen is (A) Sprayed after the aggregates are spread and compacted (B) Premixed with aggregates and then spread (C) Sprayed before the aggregates are spread and compacted (D) None of the above

Last Answer : Answer: Option A

Consider the following statements: In the critical path method of construction planning, Free Float can be. 1. Greater than Total Float. 2. Greater than Independent Float 3. Equal to Total Float. 4. Less than Independent Float. Of these statements (A) 1 and 4 are correct (B) 2 and 3 are correct (C) 1 and 4 are correct (D) 1 and 2 are correct

Description : Consider the following statements: In the critical path method of construction planning, Free Float can be. 1. Greater than Total Float. 2. Greater than Independent Float 3. Equal to Total Float. 4. Less than ... (B) 2 and 3 are correct (C) 1 and 4 are correct (D) 1 and 2 are correct

Last Answer : (B) 2 and 3 are correct

One item listed on the name plate of a cargo pump motor is 'degrees centigrade rise.' This number is based on _____________. A. normal temperature change from cold to hot B. an ambient temperature of 40°C C. minimum heat rise from no load to full load D. maximum degrees centigrade rise from absolute zero

Description : One item listed on the name plate of a cargo pump motor is 'degrees centigrade rise.' This number is based on _____________. A. normal temperature change from cold to hot B. an ambient temperature ... . minimum heat rise from no load to full load D. maximum degrees centigrade rise from absolute zero

Last Answer : Answer: B

Air initially at 101. 3 kPa and 40°C and with a relative humidity of 50%, is cooled at constant pressure to 30°C. The cooled air has a (A) Higher dew point (B) Higher absolute (specific) humidity (C) Higher relative humidity (D) Higher wet bulb temperature

Description : Air initially at 101. 3 kPa and 40°C and with a relative humidity of 50%, is cooled at constant pressure to 30°C. The cooled air has a (A) Higher dew point (B) Higher absolute (specific) humidity (C) Higher relative humidity (D) Higher wet bulb temperature

Last Answer : (C) Higher relative humidity

An air-water vapour mixture has a dry bulb temperature of 60°C and a dew point temperature of 40°C. The total pressure is 101.3 kPa and the vapour pressure of water at 40°C and 60°C are 7.30 kPa and 19.91 kPa respectively. The humidity of air sample expressed as kg of water vapour/kg of dry air is: (A) 0.048 (B) 0.079 (C) 0.122 (D) 0.152

Description : An air-water vapour mixture has a dry bulb temperature of 60°C and a dew point temperature of 40°C. The total pressure is 101.3 kPa and the vapour pressure of water at 40°C and 60°C are 7.30 kPa and 19.91 kPa respectively ... air is: (A) 0.048 (B) 0.079 (C) 0.122 (D) 0.152

Last Answer : (D) 0.152

Penetration test on bitumen is used for determining its (A) Grade (B) Viscosity (C) Ductility (D) Temperature susceptibilit

Description : Penetration test on bitumen is used for determining its (A) Grade (B) Viscosity (C) Ductility (D) Temperature susceptibilit

Last Answer : Answer: Option A

If the depth of actual neutral axis of a doubly reinforced beam (A) Is greater than the depth of critical neutral axis, the concrete attains its maximum stress earlier (B) Is less than the depth of critical neutral axis, the steel in the tensile zone attains its maximum stress earlier (C) Is equal to the depth of critical neutral axis; the concrete and steel attain their maximum stresses simultaneously (D) All the above

Description : If the depth of actual neutral axis of a doubly reinforced beam (A) Is greater than the depth of critical neutral axis, the concrete attains its maximum stress earlier (B) Is less ... critical neutral axis; the concrete and steel attain their maximum stresses simultaneously (D) All the above

Last Answer : Answer: Option D

Maximum density of water exists at (a) 0°C (b) 4°C (c) 40°C (d) 100°C

Description : Maximum density of water exists at (a) 0°C (b) 4°C (c) 40°C (d) 100°C

Last Answer : (b) 4°C

The chlorine supply cylinders are generally kept at 38°C to 40°C to prevent (A) Conversion into crystals (B) It from burning (C) It from explosion (D) None of these

Description : The chlorine supply cylinders are generally kept at 38°C to 40°C to prevent  (A) Conversion into crystals  (B) It from burning  (C) It from explosion  (D) None of these

Last Answer : (A) Conversion into crystals 

The flash point of transformer oil should be higher than (a) 40°C (b) 60°C (c) 80°C (d) 104°C

Description : The flash point of transformer oil should be higher than (a) 40°C (b) 60°C (c) 80°C (d) 104°C

Last Answer : (d) 104°C

Pick out the false statement pertaining to water treatment(A) Aeration of water is effective in CO2removal(B) The zeolite water softening process reduces the hardness of water by notmore than 50%(C) Sodium sulphate or sodium carbonate do not cause hardness in water(D) Water with pH value less than 7, is acidic.

Description : Pick out the false statement pertaining to water treatment. (A) Aeration of water is effective in CO2 removal (B) The zeolite water softening process reduces the hardness of water by not more than 50% (C ... carbonate do not cause hardness in water (D) Water with pH value less than 7, is acidic

Last Answer : (B) The zeolite water softening process reduces the hardness of water by not more than 50%

Lumirhodopsin is stable only at a temperature below (A) –35°C (B) –40°C (C) –45°C (D) –50°C

Description : Lumirhodopsin is stable only at a temperature below (A) –35°C (B) –40°C (C) –45°C (D) –50°C

Last Answer : Answer : D

Lumirhodopsin is stable only at temperature below (A) –10°C (B) –20°C (C) –40°C (D) –50°C

Description : Lumirhodopsin is stable only at temperature below (A) –10°C (B) –20°C (C) –40°C (D) –50°C

Last Answer : Answer : D

Pick up the correct statement from the following: A. Rate of digestion of sludge is more at higher temperature B. Thermophilic organisms digest the sludge if the temperature ranges from 40° to 60°C C. Mesophilic organisms digest the sludge if the temperature is between 25° and 40°C D. All the above

Description : Pick up the correct statement from the following: A. Rate of digestion of sludge is more at higher temperature B. Thermophilic organisms digest the sludge if the temperature ranges from 40° to 60°C C. Mesophilic organisms digest the sludge if the temperature is between 25° and 40°C D. All the above

Last Answer : ANS: D

Electric motors intended for use outside the engine room and boiler room are frequently rated to run at a designed ambient temperature of 40°C. What is the equivalent temperature in degrees Fahrenheit? A. 54.2°F B. 72.0°F C. 104.0°F D. 129.6°F

Description : Electric motors intended for use outside the engine room and boiler room are frequently rated to run at a designed ambient temperature of 40°C. What is the equivalent temperature in degrees Fahrenheit? A. 54.2°F B. 72.0°F C. 104.0°F D. 129.6°F

Last Answer : Answer: C

Which of the following processes is followed by unsaturated air (with dry bulb temperature 12°C and relative humidity 47%) passing through water spray washer (temperature of water being constant at 40°C? (A) Humidification only (B) Heating only (C) Both heating and humidification (D) Evaporative cooling

Description : Which of the following processes is followed by unsaturated air (with dry bulb temperature 12°C and relative humidity 47%) passing through water spray washer (temperature of water being constant at 40°C ... (B) Heating only (C) Both heating and humidification (D) Evaporative cooling

Last Answer : (C) Both heating and humidification

A long iron rod initially at a temperature of 20°C has one end dipped in boiling water (100°C) at time, t = 0. The curved surface of the rod is insulated so that heat conduction is one dimensional in the axial direction. The temperature at a distance 100 mm from the dipped end becomes 40°C at time, t = 200 s. The same temperature is achieved at a distance of 200 mm from the dipped end at time (A) t = 283 s (B) t = 356 s (C) t = 400 s (D) t = 800 s

Description : A long iron rod initially at a temperature of 20°C has one end dipped in boiling water (100°C) at time, t = 0. The curved surface of the rod is insulated so that heat conduction is one dimensional in the axial direction. The ... = 283 s (B) t = 356 s (C) t = 400 s (D) t = 800 s

Last Answer : (D) t = 800 s

The heat flux (from outside to inside) across an insulating wall with thermal conductivity, K = 0.04 W/m.°K and thickness 0.16m is 10 W/m2 . The temperature of the inside wall is - 5°C. The outside wall temperature is (A) 25°C (B) 30°C (C) 35°C (D) 40°C

Description : The heat flux (from outside to inside) across an insulating wall with thermal conductivity, K = 0.04 W/m.°K and thickness 0.16m is 10 W/m2 . The temperature of the inside wall is - 5°C. The outside wall temperature is (A) 25°C (B) 30°C (C) 35°C (D) 40°C

Last Answer : (C) 35°C

Potato tuber growth is stopped at what temperature ? (a) 40°C — 42°C (b) 30°C — 32°C (c) 35°C — 37°C (d) 38°C – 40°C

Description : Potato tuber growth is stopped at what temperature ? (a) 40°C — 42°C (b) 30°C — 32°C (c) 35°C — 37°C (d) 38°C – 40°C

Last Answer : (b) 30°C — 32°C

Thermophilic micro-organism grow well at temperature– 1) 10°C – 20°C 2) 20°C – 40°C 3) 50°C – 60°C 4) 5°C – 7°C

Description : Thermophilic micro-organism grow well at temperature– 1) 10°C – 20°C 2) 20°C – 40°C 3) 50°C – 60°C 4) 5°C – 7°C

Last Answer : 3) 50°C – 60°C

Which of the following are optimum temperature conditions for making benzenediazonium chloride from aniline? (a) 0°C to 10°C (b) 20°C to 25°C (c) 30°C to 40°C (d) 45°C to 50°C

Description : Which of the following are optimum temperature conditions for making benzenediazonium chloride from aniline? (a) 0°C to 10°C (b) 20°C to 25°C (c) 30°C to 40°C (d) 45°C to 50°C

Last Answer : 0°C to 10°C

A solid aluminium ball, when quenched in a water bath maintained at 40°C, cools down from 550°C to 450°C in 20 seconds. The expected temperature of the ball after next 20 seconds may be about __________ °C. (A) 370 (B) 340 (C) 320 (D) 300

Description : A solid aluminium ball, when quenched in a water bath maintained at 40°C, cools down from 550°C to 450°C in 20 seconds. The expected temperature of the ball after next 20 seconds may be about __________ °C. (A) 370 (B) 340 (C) 320 (D) 300

Last Answer : (A) 370

If a certain amount of dry ice is mixed with same amount of water at 80°C, the final temperature of mixture will be  (a) 80°C  (b) 0°C  (c) 40°C  (d) 20°C  (e) 60°C.

Description : If a certain amount of dry ice is mixed with same amount of water at 80°C, the final temperature of mixture will be  (a) 80°C  (b) 0°C  (c) 40°C  (d) 20°C  (e) 60°C.

Last Answer : Answer : b

If a D.C. motor designed for 40°C ambient temperature is to be used for 50°C ambient temperature, then the motor?

Last Answer : If a D.C. motor designed for 40°C ambient temperature is to be used for 50°C ambient temperature, then the motor is to be derated by a factor recommended by manufacturer and select the next higher H.P. motor.

Pick up the correct statement from the following: (A) Due to boiling, the bacterias present in water can be destroyed (B) Lime may be used for softening hard water (C) Excess lime when added to water, raises the pH value of water (D) All the above

Description : Pick up the correct statement from the following:  (A) Due to boiling, the bacterias present in water can be destroyed  (B) Lime may be used for softening hard water  (C) Excess lime when added to water, raises the pH value of water  (D) All the above 

Last Answer : (D) All the above 

Bitumen of grade 80/100 means (A) Its penetration value is 8 mm (B) Its penetration value is 10 mm (C) Its penetration value is 8 to 10 mm (D) Its penetration value is 8 to 10 cm

Description : Bitumen of grade 80/100 means (A) Its penetration value is 8 mm (B) Its penetration value is 10 mm (C) Its penetration value is 8 to 10 mm (D) Its penetration value is 8 to 10 cm

Last Answer : Answer: Option C

Which of the following represents a carpet of sand-bitumen mix without coarse aggregates? (A) Mastic asphalt (B) Sheet asphalt (C) Bituminous carpet (D) Bituminous concrete

Description : Which of the following represents a carpet of sand-bitumen mix without coarse aggregates? (A) Mastic asphalt (B) Sheet asphalt (C) Bituminous carpet (D) Bituminous concrete

Last Answer : Answer: Option B

Which of the following represents hardest grade of bitumen? (A) 30/40 (B) 60/70 (C) 80/100 (D) 100/120

Description : Which of the following represents hardest grade of bitumen? (A) 30/40 (B) 60/70 (C) 80/100 (D) 100/120

Last Answer : Answer: Option A

Pavement is said to be flexible if it contains (A) Water bound macadam surface (B) Stabilised soil base constructed of lime cement or tar (C) Bitumen-bound stone layer of varying aggregates (D) All the above

Description : Pavement is said to be flexible if it contains (A) Water bound macadam surface (B) Stabilised soil base constructed of lime cement or tar (C) Bitumen-bound stone layer of varying aggregates (D) All the above

Last Answer : Answer: Option D

Bitumen paints offer (A) Pleasing surface (B) Hard surface (C) Smooth surface (D) Protective surface

Description : Bitumen paints offer (A) Pleasing surface (B) Hard surface (C) Smooth surface (D) Protective surface

Last Answer : Answer: Option D

Plastic bitumen is generally used for (A) Road pavements (B) Expansion joints (C) Crack fillings (D) None to these

Description : Plastic bitumen is generally used for (A) Road pavements (B) Expansion joints (C) Crack fillings (D) None to these

Last Answer : Answer: Option C

Bitumen emulsion is (A) A liquid containing bitumen in suspension (B) A paint (C) Used as anti-corrosive paint (D) All the above

Description : Bitumen emulsion is (A) A liquid containing bitumen in suspension (B) A paint (C) Used as anti-corrosive paint (D) All the above

Last Answer : Answer: Option D

A pug mill is used for (A) Softening brick earth (B) Moulding brick earth (C) Tempering brick earth (D) Providing brick earth

Description : A pug mill is used for (A) Softening brick earth (B) Moulding brick earth (C) Tempering brick earth (D) Providing brick earth

Last Answer : Answer: Option C

The filler used in plastic bitumen, is (A) Shale powder (B) Talc powder (C) Asbestos powder (D) Plastic powder

Description : The filler used in plastic bitumen, is (A) Shale powder (B) Talc powder (C) Asbestos powder (D) Plastic powder

Last Answer : Answer: Option C

Bitumen felt (A) Is used as water proofing material (B) Is used as damp proofing material (C) Is made from bitumen and hessian fibres (D) All the above

Description : Bitumen felt (A) Is used as water proofing material (B) Is used as damp proofing material (C) Is made from bitumen and hessian fibres (D) All the above

Last Answer : Answer: Option D

Asphalt is obtained from (A) Petroleum distillation (B) Bitumen distillation (C) Plastic distillation (D) None of these

Description : Asphalt is obtained from (A) Petroleum distillation (B) Bitumen distillation (C) Plastic distillation (D) None of these

Last Answer : Answer: Option A

Bitumen in (A) Solid state, is called asphalt (B) Semi fluid state, is called mineral tar (C) Fluid state, is called petroleum (D) All the above

Description : Bitumen in (A) Solid state, is called asphalt (B) Semi fluid state, is called mineral tar (C) Fluid state, is called petroleum (D) All the above

Last Answer : Answer: Option D

According to ISI, bitumen is classified into (A) 2 grades (B) 4 grades (C) 8 grades (D) 10 grades

Description : According to ISI, bitumen is classified into (A) 2 grades (B) 4 grades (C) 8 grades (D) 10 grades

Last Answer : Answer: Option D

Bitumen completely dissolves in (A) Carbon bisulphide (B) Chloroform (C) Coal tar (D) All of these

Description : Bitumen completely dissolves in (A) Carbon bisulphide (B) Chloroform (C) Coal tar (D) All of these

Last Answer : Answer: Option D

Bitumen felt is used for (A) Water proofing (B) Damp proofing (C) Both (A) and (B) (D) Neither (A) nor (B)

Description : Bitumen felt is used for (A) Water proofing (B) Damp proofing (C) Both (A) and (B) (D) Neither (A) nor (B)

Last Answer : Answer: Option C

For filling cracks in masonry structures, the type of bitumen used, is (A) Cut-back bitumen (B) Bitumen-emulsion (C) Blown bitumen (D) Plastic bitumen

Description : For filling cracks in masonry structures, the type of bitumen used, is (A) Cut-back bitumen (B) Bitumen-emulsion (C) Blown bitumen (D) Plastic bitumen

Last Answer : Answer: Option D

Bitumen is generally obtained from (A) Organic material (B) Synthetic material (C) Petroleum product (D) Coal

Description : Bitumen is generally obtained from (A) Organic material (B) Synthetic material (C) Petroleum product (D) Coal

Last Answer : Answer: Option C

Bitumen may be dissolved in (A) Carbondioxide (B) Water (C) Sodium chloride (D) Carbon disulphide

Description : Bitumen may be dissolved in (A) Carbondioxide (B) Water (C) Sodium chloride (D) Carbon disulphide

Last Answer : Answer: Option D