Cummins Technical Questions - Technical Questions for Cummins

The stiffness coefficient k_ij; indicates
1. Force at i due to a unit deformation at j
2. Deformation at j due to a unit force at i
3. Deformation at I due to a unit force at j
4. Force at j due to a unit deformation at i
Answer: Option A.
Stiffness coefficient K_ij =Force required to produce unit deformation and Kij means force required in I for unit deformation at j.

The number of independent elastic constants for a linear elastic isotropic and homogenous material is
1. 4
2. 3
3. 2
4. 1
Answer: Option C.
C_nH_2n+2 is the general formula of :
1. Paraffins
2. Naphthenes
3. Olefins
4. Aromatics
Answer: Option A.
Naphthenic acid is a:
1. Nitrogen compound
2. Hydrocarbon
3. Oxygen compound
4. None of these
Answer: Option C.
Neutral flame is used for welding
1. Brasses only
2. Bronzes only
3. Brasses and bronzes
4. None of these
Answer: Option C.
Cummins Preparation Links
- Cummins Sample Technical Questions
- Sample Aptitude Questions of Cummins
- All About Cummins
- Join free prep course for Cummins
- Complete preparation course of Cummins
Which of the following has highest thermal diffusivity?
1. Iron
2. Lead
3. Wood
4. None of these
Answer: Option B

Technical Questions asked in Cummins