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1.
Which one of the following is an enclosure or housing for the generator, gear box and any other parts of the wind turbine that are on the top of the tower?
2.
The force required for producing tides in the ocean is
3.
Which of the following are related to the Proton Exchange Membrane Fuel Cell (PEMFC)?
1. Polymer electrolyte
2. Hydrogen fuel and oxygen
3. Pure water and small amount of electricity
4. Nitrogen gas
1. Polymer electrolyte
2. Hydrogen fuel and oxygen
3. Pure water and small amount of electricity
4. Nitrogen gas
4.
Which of the following are the essential functions of fuel cells?
1. The charging (or electrolyser) function in which the chemical AB is decomposed to A and B
2. The storage function in which A and B are held apart.
3. The charge function in which A and B are charged with the simultaneous generation of electricity.
1. The charging (or electrolyser) function in which the chemical AB is decomposed to A and B
2. The storage function in which A and B are held apart.
3. The charge function in which A and B are charged with the simultaneous generation of electricity.
5.
The position of centroid can be determined by inspection, if an area has
6.
Which of the following statements of D’Alembert’s principle are correct?
1. The net external force F actually acting on the body and the inertia force Ft together keep the body in a state of fictitiousequilibrium
2. The equation of motion may be written as F + (ma) = 0 and the fictitious force (– ma) is called an inertia force
3. It tends to give solution of a static problem an appearance akin to that of a dynamic problem.
1. The net external force F actually acting on the body and the inertia force Ft together keep the body in a state of fictitiousequilibrium
2. The equation of motion may be written as F + (ma) = 0 and the fictitious force (– ma) is called an inertia force
3. It tends to give solution of a static problem an appearance akin to that of a dynamic problem.
7.
The linear relationship between stress and strain for a bar in simple tension or compression is expressed with standard notations by the equation
8.
A punch is used for making holes in steel plates with thickness 8 mm. If the punch diameter is 20 mm and force required for creating a hole is 110 kN, the average shear stress in the plate will be nearly
9.
A rod of length 2 m and diameter 50 mm is elongated by 5 mm when an axial force of 400 kN is applied. The modulus of elasticity of the material of the rod will be nearly
10.
