Strain is equal to (where l = Original length, and ?l = Change in length) l/?l ?

CuriousTab

CuriousTab

Home Aptitude

Discussion

Home ‣ Mechanical Engineering ‣ Strength of Materials Comments

Question
Strain is equal to (where l = Original length, and ?l = Change in length)
Options
A. l/?l
B. ?l/l
C. l.?l
D. l + ?l

Correct Answer

?l/l

Strength of Materials problems

Search Results

2. When a bar of length l, width b and thickness t is subjected to a pull of P, its
Options
A. length, width and thickness increases
B. length, width and thickness decreases
C. length increases, width and thickness decreases
D. length decreases, width and thickness increases

3. Which of the following statement is correct?
Options
A. The stress is the pressure per unit area.
B. The strain is expressed in mm.
C. Hook's law holds good upto the breaking point.
D. Stress is directly proportional to strain within elastic limit.

4. The volumetric strain is the ratio of the
Options
A. original thickness to the change in thickness
B. change in thickness to the original thickness
C. original volume to the change in volume
D. change in volume to the original volume

5. A bolt is made to pass through a tube and both of them are tightly fitted with the help of washers and nuts. If the nut is tightened, then
Options
A. bolt arid tube are under tension
B. bolt and tube are under compression
C. bolt is under compression and tube is under tension
D. bolt is Under tension and tube is under compression

7. The unit of modulus of elasticity is same as those of
Options
A. stress, strain and pressure
B. stress, force and modulus of rigidity
C. strain, force and pressure
D. stress, pressure and modulus of rigidity

10. The design of thin cylindrical shells is based on
Options
A. hoop stress
B. longitudinal stress
C. arithmetic mean of the hoop and the longitudinal stress
D. geometric mean of the hoop and longitudinal stress

Comments

More in Mechanical Engineering: