Lakshya Education MCQs

Question: If a load w is applied instantaneously on a bar; then the stress induced in bar will
Options:
A. Be independent of ratio of mass of load W to mass of bar (y)
B. Increase with increase in y
C. Decrease with decrease in y
D. Depend on other considerations
Answer: Option A

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More Questions on This Topic :

Question 1. Plastic flow in ductile materials
  1.     Increases the seriousness of static loading stress concentration
  2.     Lessens the seriousness of static loading stress concentration
  3.     Has no effect on it
  4.     Depends on other considerations
Answer: Option B
Question 2. In levers, leverage is the ratio of
  1.     Load lifted to the effort applied
  2.     Mechanical advantage to the velocity ratio
  3.     Load arm to the effort arm
  4.     Effort arm to the load arm
Answer: Option D
Question 3. In levers, leverage is the ratio of
  1.     Load lifted to the effort applied
  2.     Mechanical advantage to the velocity ratio
  3.     Load arm to the effort arm
  4.     Effort arm to the load arm
Answer: Option D
Question 4. When a close coiled helical spring is compressed, its wire is subjected to
  1.     Tension
  2.     Shear
  3.     Compression
  4.     All of the above
Answer: Option A
Question 5. Which of the following screw thread is used for power transmission in one direction only?
  1.     Square threads
  2.     Multiple threads
  3.     Acme threads
  4.     Buttress threads
Answer: Option D
Question 6. Which of the following screw thread is used for power transmission in one direction only?
  1.     Square threads
  2.     Multiple threads
  3.     Acme threads
  4.     Buttress threads
Answer: Option D

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