Description : As per recommendations of I.R.C., traffic volume study is carried out for rural roads for 7 days continuously during (A) Harvesting (B) Lean season (C) Harvesting and lean season (D) None of these
Last Answer : Answer: Option C
Description : A 500 W bulb fitted with a reflector illuminates an area of 2 m x 2 m with an average illumination of 500 lux. The efficiency of the reflector is 50%. The efficiency of the bulb in lumens/watt is :
Last Answer : A 500 W bulb fitted with a reflector illuminates an area of 2 m x 2 m with an average illumination of 500 lux. The efficiency of the reflector is 50%. The efficiency of the bulb in lumens/watt is : 8
Description : Lux meter is used to measure…… a) Illumination level b) Sound intensity and illumination level c) Harmonics d) Speed
Last Answer : Illumination level
Description : Lux meter is used to measure…… c) Illumination level c) Harmonics d) Sound intensity and illumination level d) Speed
Description : Lux meter is used to measure…… a) Illumination level c) Harmonics b) Sound intensity and illumination level d) Speed
Description : ______ meter is used to measure Illumination level a. Pyrometer b. Wattmeter c. Lux meter d. All
Last Answer : Ans:- c. Lux meter
Description : Lux is the SI unit of - (1) intensity of illumination (2) luminous efficiency (3) luminous flux (4) luminous intensity
Last Answer : (1) intensity of illumination Explanation: The SI unit of intensity of illumination (illuminance) is the lux. An illuminance of 1.0 lux is produced by 1.0 lumen of light shining on an area of 1.0 m2.
Description : What is the recommended minimum range of illumination required by BS EN 970 for inspection of a welded surface? a) 90 to 125 lux b) 150 to 250 lux c) 350 to 500 lux d) 35 to 50 lux
Last Answer : c) 350 to 500 lux
Description : Define each of following terms of illumination — lux, lumen, luminous flux, illumination.
Last Answer : i) Lux :- It is unit of illumination and it is defined as luminous flux falling per unit area ii) Lumen: It is defined as the luminous flux emitted by a source of one candle power per unit ... the given surface on the working plane. The unit of illumination is lumens/m2 OR lumens/m2 = 1 Lux
Description : Which of the following correspond to the recommendations of IRC for pavement thickness determination by CBR Method ? 1. CBR tests are to be conducted in-situ 2. Static compression is best adopted 3. The top 50 cm of sub grade ... 1, 2 and 3 (b) 1 and 2 only (c) 2 and 3 only (d) 1 and 3 only
Last Answer : (c) 2 and 3 only
Description : On earth roads, the camber should preferably be (A) 1 in 20 to 1 in 24 (B) 1 in 30 to 1 in 48 (C) 1 in 15 to 1 in 20 (D) 1 in 10 to 1 in 15
Last Answer : Answer: Option A
Description : A traffic rotary is justified where (A) Number of intersecting roads is between 4 and 7 (B) Space is limited and costly (C) When traffic volume is less than 500 vehicles per hour (D) When traffic volume is more than 5000 vehicles per hour
Description : Minimum permissible speed on high speed roads, is decided on the basis of (A) 15 percentile cumulative frequency (B) 20 percentile cumulative frequency (C) 30 percentile cumulative frequency (D) 40 percentile cumulative frequency
Description : On the recommendations of Indian Road Congress, the ruling gradient in plains, is (A) 1 in 15 (B) 1 in 20 (C) 1 in 30 (D) 1 in 45
Description : A pile of length carrying a uniformly distributed load per metre length is suspended at the centre and from other two points 0.15 L from either end ; the maximum hogging moment will be (A) WL²/15 (B) WL²/30 (C) WL²/60 (D) WL²/90
Last Answer : Answer: Option D
Description : The traffic carrying capacity of a single lane, depends on (A) Type of the vehicles (B) Level crossings (C) Road intersections (D) All the above
Description : The period of long term plan for the development of roads in India, known as Bombay Plan (Aug. 1958), is (A) 5 years (B) 10 years (C) 15 years (D) 20 years
Description : The gradients of trace cuts for hilly roads, are kept (A) Equal to ruling gradient (B) 10 to 20 per cent easier than ruling gradients (C) 10 to 20 per cent steeper than ruling gradients (D) None of these
Last Answer : Answer: Option B
Description : A network with bandwidth of 10 Mbps can pass only an average of 15,000 frames per minute with each frame carrying an average of 8,000 bits. What is the throughput of this network? a. 2 Mbps b. 60 Mbps c. 120 Mbps
Last Answer : a. 2 Mbps
Description : A network with bandwidth of 10 Mbps can pass only an average of 15,000 frames per minute with each frame carrying an average of 8,000 bits. What is the throughput of this network ? (A) 2 Mbps (B) 60 Mbps (C) 120 Mbps (D) 10 Mbps
Last Answer : (A) 2 Mbps Explanation: In data transmission, throughput is the amount of data moved successfully from one place to another in a given period of time, and typically measured in bits per second (bps), ... second (Mbps) or gigabits per second (Gbps). Here, Throughput = 15000 x 8000/60 = 2 Mbps
Description : Mark the correct option a) Branch lines which radiate from head offices and large sub-offices connecting them with less important sub and branch offices in the interior of districts, or lines which ... unbridged streams and rivers, and for carrying them over difficult roads. d) All the above
Last Answer : d) All the above
Description : Shoulders for high traffic volume roads, should (A) Be stable throughout the year to be used by vehicles in the case of emergency (B) Support and protect the ends of carriage ways (C) Not allow entrance of water to sub-grade (D) All the above
Description : For Indian conditions, the water bound macadam roads, are suitable if daily traffic does not exceed (A) 2000 tonnes (B) 2500 tonnes (C) 3000 tonnes (D) 3500 tonnes
Description : The advantage of providing super-elevation on roads, is (A) Higher speed of vehicles (B) Increased volume of traffic (C) Reduced maintenance cost of the roads (D) All the above
Description : At intersection of roads, the traffic volume study is carried out to ascertain the number of vehicles (A) Moving along straights (B) Turning left (C) Turning right (D) All the above
Description : The minimum design speed for hairpin bends in hill roads is taken as (A) 20 kmph (B) 30 kmph (C) 40 kmph (D) 50 kmph
Description : On concrete roads, the camber generally provided, is (A) 1 in 20 to 1 in 24 (B) 1 in 30 to 1 in 48 (C) 1 in 36 to 1 in 48 (D) 1 in 60 to 1 in 72
Description : If a rectangular pre-stressed beam of an effective span of 5 meters and carrying a total load 3840 kg/m, is designed by the load balancing method, the central dip of the parabolic tendon should be (A) 5 cm (B) 10 cm (C) 15 cm (D) 20 cm
Description : The best compromise between the increase of the length of a highway and reduction in its load carrying capacity, is the ruling gradient (A) 1 in 10 (B) 1 in 15 (C) 1 in 20 (D) 1 in 25
Description : If average volume of sediment deposits is one-tenth million cubic metres per year in a reservoir of total capacity 10 million cubic metres, the dead storage will be filled up, in (A) 10 years (B) 15 years (C) 20 years (D) 25 years
Last Answer : (D) 25 years
Description : Estimates of a water supply project depends upon the rate of water supply per capita consumption and probable population estimated at the end of the design period of (A) 5 to 10 years (B) 10 to 15 years (C) 15 to 20 years (D) 20 to 30 years
Last Answer : (D) 20 to 30 years
Description : Enlist the luminaries used in factory lighting and lux level required in various areas.
Last Answer : Area Luminaries Lux level Office building Fluorescent tube, LED, CFL 500 lux Testing centre Fluorescent tube, LED, CFL 400 to 500 lux Workshop/work place Halogen ... , LED, CFL, Projector lamp, filament lamp, Halogen Lamp, Metal Halide lamp etc Above 600 Lux
Description : According to IRC : 52-1973, for a single lane National Highway in hilly region, (A) Width of the carriageway must be 3.75 m (B) Shoulders on either side must be 1.25 m (C) Total width of the road-way must be 6.25 m (D) Total of the above
Description : The method of design of flexible pavement as recommended by IRC is (A) Group index method (B) CBR method (C) Westergaard method (D) Benkelman beam method
Description : Super-elevation on roads in snow bound areas, should generally not exceed (A) 15 % (B) 12 % (C) 10 % (D) 7 %
Description : Ajay reads at an average rate of 30 pages per hour, while Vikram reads at an average rate of 40 pages per hour. If Ajay starts reading a novel at 4:30 PM and Vikram begins reading an identical copy of the same book at 5:20 PM, at ... same page? a) 7:50 PM b) 8:15 PM c) 8:40 PM d) 9:00 PM e) 9:25 PM
Last Answer : Ajay reads at average rate of 30 pages per hour ie. 1 page in every two minutes. Therefore, by 5:20 PM, he would have covered 25 pages By 6:20 PM, Ajay would have read 25+30 pages and Vikram would have ... and he will also finish 100 pages Hence, both of them will be on same page at 7:50 Answer: a)
Description : To prevent movement of moisture from sub-grade to road pavement at the same level as that of water-table, thickness of a cut off layer of coarse sand, is (A) 15 cm (B) 20 cm (C) 30 cm (D) 45 cm
Description : Tar roads get easily damaged during – (1) summer (2) winter (3) rainy season (4) peak traffic hours
Last Answer : (3) rainy season Explanation: Tar & chip have been used for over 100 years, all over the world, with great success, to pave and resurface roads. However, they are easily spoiled in rains and natural calamity. Concrete roads are less affected.
Description : Tar roads get damaged if there is – (1) stagnation of water on road (2) heavy traffic (3) no maintenance (4) no sloping
Last Answer : (1) stagnation of water on road
Description : Tar roads get damaged if there is (1) stagnation of water on road (2) heavy traffic (3) no maintenance (4) no sloping
Last Answer : stagnation of water on road
Description : A tractor whose weight is 20 tonnes has a drawbar pull of 2500 kg, when operated on a level road having a rolling resistance of 30 kg per tonne. If this tractor is operated on a level road having a rolling resistance ... 200 kg (B) Increase by 200 kg (C) Increase by 250 kg (D) Reduce by 250 kg
Last Answer : (A) Reduce by 200 kg
Description : A network with bandwidth of 10 Mbps can pass only an average of 12,000 frames per minute with each frame carrying an average of 10,000 bits. What is the throughput of this network ? a. 1 Mbps b. 2 Mbps c. 10 Mbps d. 12 Mbps
Last Answer : b. 2 Mbps
Description : A network with bandwidth of 10 Mbps can pass only an average of 12,000 frames per minute with each frame carrying an average of 10,000 bits. What is the throughput of this network ? (A) 1 Mbps (B) 2 Mbps (C) 10 Mbps (D) 12 Mbps
Last Answer : (B) 2 Mbps
Description : The length of the side of warning sign boards of roads is (A) 30 cm (B) 40 cm (C) 45 cm (D) 50 cm
Description : Earth observations from a satellite platform provide: (A) Synoptic view of a large area (B) Constant solar zenith angles and similar illumination conditions (C) Repetitive observations of the same area with intervals of a few minutes to a few weeks (D) All of these
Description : Ravi walks to and fro to a Gym. He spends 30 minutes in gym. If he walks at speed of 20 km an hour, he returns to home at 8.00 a.m. If he walks at 30 km an hour, he returns to home at 7.30 a.m. How fast must he walk in order to return at 7.15 hours? a) 40 km/hr b) 30 km/hr c) 60 km/hr d) 50 km/hr
Last Answer : A As per the question, let D be the total distance and ‘t’ is the time taken. So we have: D=20t 20t =30(t-0.5) 20t=30t-15 10t=15 t=3/2 D= 30 km Now, for the condition given we have: 30=S(t-3/4) 30=S(3/2-3/4) 30=S((6-3)/4) 30=S(3/4) S=40 km/hr
Description : A biologist studied the population of rats in a barn. He found that the average natality was 250, average mortality 240, immigration 20 and emigration 30. The net increase in population is (a) 05 (b) zero (c) 10 (d) 15.
Last Answer : (b) zero
Description : The average price of 12 note books is Rs.15 while the average price of 10 of these note books is Rs.13. Of the remaining 2 note books, if the price of one note book is 50% more than the price of the other, what is the price of ... Rs. 30, Rs.20 B) Rs. 8, Rs. 30 C) Rs. 10, Rs. 16 D) Rs. 12, Rs. 20
Last Answer : Answer: A) Total price of 12 note books = Rs. 180 Total price of 10 note books= Rs. 130 ⇒ The price of 2 note books = Rs. 50 Let the price of each book be x and y. ⇒ x + y = 50 ----- ... note book is 50% more than the other price 150y/100+y=50 y=20 Substituting y value in (1) we get, x=30
Description : Roughness index of roads, is expressed as (A) Size of the stone on the pavement (B) Number of patches on the pavement (C) Cumulative deformation of surface per horizontal distance (D) Type of the road surface
Description : An exceptional grade may be provided upto 1 in 12 along hill roads, if the length does not exceed (A) 45 m per km (B) 60 m per km (C) 75 m per km (D) 90 m per km