Q1.A steel rod 2.0 m long has a cross-sectional area of 0.30 cm2. It is hung by one end from a support, and a 550-kg milling machine is hung from its other end. Determine the elongation. Take Young's modulus of steel as 20 ×1010 Pa
Answer : Option CExplaination / Solution: No Explaination.
Q2.A hydraulic press contains 0.25 m3 (250 L) of oil. Find the decrease in the volume of the oil when it is subjected to a pressure increase Δp = 1.6 ×107Pa(about 160 atm or 2300 psi). The bulk modulus of the oil is B = 5.0 ×109 Pa
Answer : Option BExplaination / Solution: No Explaination.
Q3.Two wires of diameter 0.25 cm, one made of steel and the other made of brass are loaded as shown in Figure The unloaded length of steel wire is 1.5 m and that of brass wire is 1.0 m. Compute the elongation of the steel wire.
Answer : Option CExplaination / Solution: No Explaination.
Q4.The edge of an aluminum cube is 10 cm long. One face of the cube is firmly fixed to a vertical wall. A mass of 100 kg is then attached to the opposite face of the cube. The shear modulus of aluminum is 25 GPa. What is the vertical deflection of this face?
Answer : Option CExplaination / Solution: No Explaination.
Q5.A circular steel wire 2.00 m long must stretch no more than 0.25 cm when a tensile force of 400 N is applied to each end of the wire. What minimum diameter is required for the wire?
Answer : Option BExplaination / Solution: No Explaination.
Q6.A metal rod that is 4.00 m long and 0.50 cm2 in cross-sectional area is found to stretch 0.20 cm under a tension of 5000 N. What is Young’s modulus for this metal?
Answer : Option BExplaination / Solution: No Explaination.
In constructing a large mobile, an artist hangs an aluminum sphere of mass 6.0 kg from a vertical steel wire 0.50 m long and 2.5 ×10−3cm2in cross-sectional area. On the bottom of the sphere he attaches a similar steel wire, from which he hangs a brass cube of mass 10.0 kg. Compute the tensile strain.
Answer : Option DExplaination / Solution: No Explaination.
In constructing a large mobile, an artist hangs an aluminum sphere of mass 6.0 kg from a vertical steel wire 0.50 m long and 2.5 ×10−3cm2in cross-sectional area. On the bottom of the sphere he attaches a similar steel wire, from which he hangs a brass cube of mass 10.0 kg. Compute the elongation.
Answer : Option DExplaination / Solution: No Explaination.
A specimen of oil having an initial volume of 600 cm3is subjected to a pressure increase of 3.6 ×106Pa and the volume is found to decrease by 0.45 cm3 what is the bulk modulus of the material?
Answer : Option BExplaination / Solution: No Explaination.
Q10.A specimen of oil having an initial volume of 600 cm3 is subjected to a pressure increase of 3.6 ×106 Pa and the volume is found to decrease by 0.45 cm3 what is the compressibility of the material?
Answer : Option BExplaination / Solution: No Explaination.
Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1
Mark for Wrong Answer : -0.5
Mark for Left Answer : 0