Q. A simple truss is shown in the figure below. The truss is loaded with horizontal and vertical force 15 kN and 25 kN, respectively. The force in the member AB will be________kN. A. 10 B. 20 C. 30 D. 40 Ans: 20
Q. An industrial building contains 3000 kg of combustible materials, in dry state, distributed over three rooms of area 100 m2, 500 m2 and 300 m2 each, in a proportion of 30%, 50% and 20% of the contents, respectively. Calorific value of the material is 4400 kCal/kg. The Total Fire Load of the rooms is
Q. The stack pressure is created by 10 m height of stack and 15°C temperature difference. Themotive force due to the stack pressure over a cross section area of 2.5 m2 is________N. Ans: 15.75 Solution: Stack effect or chimney effect is the movement of air into and out of buildings, chimneys, fluegas stacks, etc, resulting
Q. For a symmetrical trapezoidal open drain in a landscape with grass and loose rock surface, the velocity of flow of water is m/sec, (rounded off to two decimal places), given the following data. Water edge width at the top= 750 mm Water edge width at the bottom = 450 mm Water depth = 600
Q. A simply supported beam AB has a clear span of 7 meter. The bending moment diagram (BMD) of the beam due to a single concentrated load is shown in the figure below. The magnitude of the concentrated load in kN is____________. Ans: 21 Solution: Moment along any plane xx’, MX = RA x =
Q. A room having dimension 12 m × 10 m × 3.5 m is required to be mechanically ventilated by air-conditioner. The temperature difference between outdoor ambient air and the supply air is 12 °C. Consider three air exchanges per hour. The volumetric specific heat of the air is 1250 J/m3 °C. Assume one ton
Q. A power shovel is having 1.8 m3 excavation output per batch of operation. The average cycle time of the batch operation is 45 seconds. The lost time per hour of the excavation activity is 10 minutes. Assume six working hours of operation per day. The amount of soil excavated by the power shovel per
Q. A depressed portion of a land is identified by three closed contours, as shown in the figure below. The area bounded by three contour lines are 6 m2, 24 m2 and 96 m2 respectively. The contour interval is 1 m. Using prismoidal method, the volume of the earth needed to fill the land depression
Q. The internal dimension of a room is 10m × 10m × 4m (height). The total area of the doors and windows are 16 m2. Keeping the doors and windows closed, the reverberation time of the room becomes 1.2 second. Assume all the interior surfaces including doors and windows have same sound absorption coefficient. If
Q. In a site map, a rectangular residential plot measures 150 mm × 40 mm, and the width of the front road in the map measures 16 mm. Actual width of the road is 4 m. If the permissible F.A.R. is 1.2, the maximum built-up area for the residential building will be___________m2. The map is
