# Technical Questions asked in L&T ECC

Views:18806
1. When a body is in motion, the type of friction exeprienced by the body is:
1. Rolling friction
2. Limiting friction
3. Dynamic friction
4. Static friction
Answer: Option C.
2. Charles' Law states that
1. p/T= constant (v is kept constant)
2. p.v= constant (T is kept constant)
3. v/T = constant (p is kept constant)
4. None of these
Answer: Option C.
1. What should be the increase in length of the pendulum, in order to triple the period of swing?
1. Increased by 8-fold
2.  Incraesed by 9-fold
3. Increased by 7-fold
4. No change
Answer: Option B.
2. The moment of interia of a square of side a about its base is:
1. a2/3
2. a4/2
3. a4/3
4. a2/2
Answer: Option C.
3. The cutting angle , for drilling stainless steel should be:
1. 90°
2. 150°
3. 180°
4. 135°
Answer: Option D.
4. When two elements of a pair have surface contact when in motion, it is said to be :
1. Higher pair
2. Lower pair
3. Rolling pair
4. None of these
Answer: Option B.
Views:18806