Mechanical Properties of Fluids Test

Result

Mechanical Properties of Fluids Test - 37

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Weekly Quiz Competition

Question 1
4 / -1

A beam of metal supported at the two ends is loaded at the center. The depression at the center is proportional to..............

A
Y²

B
Y

C

D

Solution
Question 2
4 / -1

On increasing the length by 0.5 mm in a steel wire of length 2 m and area of cross-section 2 mm² the force required is................

A

B

C

D

Solution
Question 3
4 / -1

A
3.18

B
6.36

C
5.18

D
1.59

Solution
Question 4
4 / -1

A force F is needed to break a copper wire having radius R, The force needed to break a copper wire of radius 2R will be........

A
F/2

B
F

C
4F

D
F/4
Question 5
4 / -1

A rubber cord 10m long is suspended vertically. How much does it stretch under its own weight.

A

B

C

D

Solution
Question 6
4 / -1

The young's modulus of the material of a wire is equal to the ...........

A
stress required to increase its length four times

B
strtess required to prdouce unit strain

C
strain produced in it

D
stress acting on it

Solution
Question 7
4 / -1

If x, longitudinal strain is produced in a wire of young's modulus y then energy stored in the material of the wire per unit volume is..........

A

B

C

D

Solution
Question 8
4 / -1

A and B are two wires. The radius of A is twice that of B. They are stretched by the same load. Then what is the stress on B ?

A
Equal to that on A

B
Four times that on A

C
Two times that on A

D
Half that on A

Solution
Question 9
4 / -1

If the length of wire is reduced to half then it can hold the .............load.

A
Half

B
Same

C
Double

D
One fourth
Question 10
4 / -1

Steel and copper wires of same length are stretched by the same weight one after the other. Young's modulus of steel the ratio increase in length ?

A

B

C

D

Solution