The RL of the initial station is 200 m. If Σ BS = 1.54 m of the last station in m is and Σ FS = 0.45 m
Q. The RL of the initial station is 200 m. If Σ BS = 1.54 m of the last station in m is and Σ FS = 0.45 m , then the RL. Ans: 201.09-201.09 .
Two contours of RL 60 m and 70 m are separated by 34 m measured along dip of the
Q. Two contours of RL 60 m and 70 m are separated by 34 m measured along dip of the seam. The dip of the seam in degree is Ans: 16.5-17.5
Two contours of RL 60 m and 70 m are separated by 34 m measured along dip of the Read More »
The figure depicts a transportation problem along with the solution
Q. The figure depicts a transportation problem along with the solution. The correct statement is A. unbalanced problem, optimal solution B. unbalanced problem, sub-optimal solution C. balanced problem, optimal solution D. balanced problem, sub-optimal solution Ans: Balanced problem, optimal solution Sol: Total supply = 15+15 = 30 Total demand = 10+20=30 Total supply = Total
The figure depicts a transportation problem along with the solution Read More »
The property that CANNOT be determined from uniaxial compressive strength
Q. The property that CANNOT be determined from uniaxial compressive strength test of a rock sample fitted with strain gauges is (A) cohesion (B) Poisson’s ratio (C) modulus of elasticity (D) dilation Sol: cohesion
The property that CANNOT be determined from uniaxial compressive strength Read More »
Exposure of weak roof in junctions of a development district in a coal mine can be decreased by
Q. Exposure of weak roof in junctions of a development district in a coal mine can be decreased by(A) increasing dimension of panel barrier(B) stitching side walls(C) increasing support density at junctions(D) staggering the junctions Ans: staggering the junctions
A vehicle powered by a spark ignition engine follows air standard Otto cycle (g=1.4)
Q. A vehicle powered by a spark ignition engine follows air standard Otto cycle (g=1.4). The engine generates 70 kW while consuming 10.3 kg/hr of fuel. The calorific value of fuel is 44,000 kJ/kg. The compression ratio is _________ (correct to two decimal places). Ans: 7.40 – 7.80
A vehicle powered by a spark ignition engine follows air standard Otto cycle (g=1.4) Read More »
Steam in the condenser of a thermal power plant is to be condensed at a temperature of 30°C
Q. Steam in the condenser of a thermal power plant is to be condensed at a temperature of 30°C with cooling water which enters the tubes of the condenser at 14°C and exits at 22°C. The total surface area of the tubes is 50 m2, and the overall heat transfer coefficient is 2000 W/m2 K.
A welding operation is being performed with voltage = 30 V and current = 100 A
Q. A welding operation is being performed with voltage = 30 V and current = 100 A. The cross-sectional area of the weld bead is 20 mm2. The work-piece and filler are of titanium for which the specific energy of melting is 14 J/mm3. Assuming a thermal efficiency of the welding process 70%, the welding
A welding operation is being performed with voltage = 30 V and current = 100 A Read More »
A circular hole of 25 mm diameter and depth of 20 mm is machined by EDM process
Q. A circular hole of 25 mm diameter and depth of 20 mm is machined by EDM process. The material removal rate (in mm3/min) is expressed as 4 ´104 IT -1.23 where I = 300 A and the melting point of the material, T = 1600°C . The time (in minutes) for machining this hole is Ans:
A circular hole of 25 mm diameter and depth of 20 mm is machined by EDM process Read More »
The arc lengths of a directed graph of a project are as shown in the figure
Q. The arc lengths of a directed graph of a project are as shown in the figure. The shortest path length from node 1 to node 6 is Ans: 7 Sol:
The arc lengths of a directed graph of a project are as shown in the figure Read More »