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Architecture and Planning : A 5m × 5m × 3m room has four 230 mm thick external brick walls. Total wall fenestration is 10 sqm. The temperature difference between indoor and outdoor is 2 degC. The air to air transmittance values for 230 mm thick brick wall and 200 mm thick aerated concrete block wall are 2.4 and 1.7 W/sqm degC respectively. If the brick walls are replaced with the aerated concrete block walls, then the change in conductive heat flow through the walls is _________W.0 Answer the change in conductive heat flow through the walls is _________W. (GATE-Architecture-Planning-2018)1 Answer Which one of the following statements regrading thermos flask is NOT correct? 0 AnswerA tank of internal dimension 3 m x 5 m x 4 m (L ength x Breadth x Height) has 200 mm thick brick wall on all sides. Volume of brickwork in m 3 would be _______. GATE- Architecture and Planning- 2013 1 AnswerThe pressure exerted on the walls of a container by a gas due to the fact that gas molecules0 AnswerWhat is the maximum ratio steel used in Shear Walls and Core Walls?1 AnswerAn air-conditioner maintains the room temperature at 27 oC while the outside temperature is 47 oC. The heat conducted through the walls of the room from outside to inside due to temperature difference is 7000 W. The minimum work done by the compressor of the air-conditioner per unit time is ________ W1 AnswerGive reasons: a) In places of hot climate it is advised that outer walls of the houses should not be painted with dark colours. b) wearing more layers of clothing during winter keeps us warmer than wearing just one thick piece of cloth.- NCERT CLASS 6TH CBSE science 20161 AnswerA thin-walled tube, with the cross-section shown in the figure, is subjected to a torque of T = 1 kN-m. The walls have uniform thickness t = 1 mm and shear modulus G = 26 GPa. Assume that the curved portion is semi-circular. The shear stress in the wall is _____ MPa (round off to 1 decimal place).0 AnswerA s shown in schematic below, an alloy is cast as a rectangular slab between two thick mould walls that differ in their thermal conductivities. Shrinkage defects are found at a distance L1 from Mould-1 with thermal conductivity 𝑘1 and distance L2 from Mould-2 with thermal conductivity 𝑘2. If the ratio L1:L2 = 3:2, and assuming 1-D heat transfer, the ratio ( 𝑘1 𝑘2 ⁄ ) is ________ (to two decimal places)1 AnswerA solid block of 2.0 kg mass slides steadily at a velocity V along a vertical wall as shown in the figure below. A thin oil film of thickness h = 0.15 mm provides lubrication between the block and the wall. (Gate 2018 Mechanical engineering)0 AnswerThe dimensions of a brick are 10cmx4cmx3cm. What is the total surface area of this brick?1 AnswerA 50 cm long rod is placed against a vertical wall such that the bottom of the rod is 30 cm away from the wall. If the bottom of the rod is pulled horizontally away from the wall at 4 cm. s −1 , the top of the rod starts sliding down the wall with an instantaneous velocity (in cm. s −1 , rounded off to two decimal places) of magnitude _______________.0 AnswerConsider the length of a room is 15 m and width is 10 m. If the sum of the areas of the floor and ceiling is equal to the sum of the areas of four walls, then the volume of the room is0 AnswerGive reasons: CBSE- Class9- Chemistry 20131 AnswerA ladder is resting against a vertical wall and its bottom is 2.5 m away from the wall. If it slips 0.8 m down the wall, then its bottom will move away from the wall by 1.4 m. What is the length of the ladder? A. 6.2 m B. 6.5 m C. 6.8 m D. 7.5 m0 AnswerA retaining wall of height H with smooth vertical backface supports a backfill inclined at an angle with the horizontal. The backfill consists of cohesionless soil having angle of internal friction . If the active lateral thrust acting on the wall is Pa, which one of the following statements is TRUE?Given below are the four spellings of the same word. Choose the correct one. 0 AnswerThe wall of a constant diameter pipe of length 1 m is heated uniformly with flux q” by wrapping a heater coil around it. The flow at the inlet to the pipe is hydrodynamically fully developed. The fluid is incompressible and the flow is assumed to be laminar and steady all through the pipe. The bulk temperature of the fluid is equal to 0 oC at the inlet and 50 oC at the exit. The wall temperatures are measured at three locations, P, Q and R, as shown in the figure. The flow thermally develops after some distance from the inlet. The following measurements are made:0 AnswerHumpty Dumpty sits on a wall every day while having lunch. The wall sometimes breaks. A person sitting on the wall falls if the wall breaks-GATE EC 20151 AnswerThe ingredient to be added to produce Aerated Cement Concrete, is0 Answer
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