Q. A parabolic vertical curve is being designed to join a road of grade +5% with a road of grade -3%. The length of the vertical curve is 400 m measured along the horizontal. The vertical point of curvature (VPC) is located on the road of grade +5%. The difference in height between VPC and […]
Q. Traffic on a highway is moving at a rate of 360 vehicles per hour at a location. If the number of vehicles arriving on this highway follows Poisson distribution, the probability (round off to 2 decimal places) that the headway between successive vehicles lies between 6 and 10 seconds is Solution: λ=360veh/hr
Question Which personality from Assam known as “Dhwani Kabi”? Type multiple_choice Option Ananda chandra Agarwala incorrect Option Binanda Chandra Baruah correct Option Rudra Baruah incorrect Option Parvati Prasad Baruah incorrect Solution Binanda Chandra Barua was a noted Indian writer and poet of Assamese literature from Teok, Assam. Question Noonmati refinery was established in- Type multiple_choice
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Q. Average free flow speed and the jam density observed on a road stretch are 60 km/h and 120 vehicles/km, respectively. For a linear speed-density relationship, the maximum flow on the road stretch (in vehicles/h) is Solution: The correct option is 1800Vf=60km/hkj=120veh/km qmax=vfkj/4 =60*120/4 =1800
Q. A staff is placed on a benchmark (BM) of reduced level (RL) 100.000 m and a theodolite is placed at a horizontal distance of 50 m from the BM to measure the vertical angles. The measured vertical angles from the horizontal at the staff readings of 0.400 m and 2.400 m are found to
Q. A wastewater is to be disinfected with 35 mg/L of chlorine to obtain 99% kill of micro- organisms. The number of micro-organisms remaining alive (Nt) at time t, is modelled by Nt = No e–kt , where No is number of micro-organisms at t = 0, and k is the rate of kill. The wastewater
Q. A 0.80 m deep bed of sand filter (length 4 m and width 3 m) is made of uniform particles (diameter = 0.40 mm, specific gravity = 2.65, shape factor = 0.85) with bed porosity of 0.4. The bed has to be backwashed at a flow rate of 3.60 m3/min. During backwashing, if the
Q. A sample of air analysed at 0°C and 1 atm pressure is reported to contain 0.02 ppm (parts per million) of NO2. Assume the gram molecular mass of NO2 as 46 and its volume at 0°C and 1 atm pressure as 22.4 litres per mole. The equivalent NO2 concentration (in microgram per cubic meter,
Q. A portal frame shown in figure (not drawn to scale) has a hinge support at joint P and a roller support at joint R. A point load of 50 kN is acting at joint R in the horizontal direction. The flexural rigidity, EI, of each member is 106 kNm2. Under the applied load, the
Q. A box measuring 50 cm × 50 cm × 50 cm is filled to the top with dry coarse aggregate of mass 187.5 kg. The water absorption and specific gravity of the aggregate are 0.5% and 2.5, respectively. The maximum quantity of water (in kg, round off to 2 decimal places) required to fill
