- Its calorific value is very less
- Tar neutralises the residual acids present in pitch
- It reduces viscosity and imparts fluidity for its transportation through pipelines at economic pressure drop
- All of the above
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When the addenda on pinion and wheel is such that the path of approach and path of recess are half of their maximum possible values, then the length of the path of contact is given by (where r = Pitch circle radius of pinion, R = Pitch circle radius of wheel and $$\varphi $$ = Pressure angle)?
Answer: Option 4 Let'
1 Answers 8 views
Which of the following property sets pitch or tone (high or low) for the synthesized speech when reading an element; the pitch may be specified absolutely or relative to the normal pitch for the voice-family used to read the text?
Answer: Option 3 Let'
1 Answers 1 views
The relation between the pitch of the chain (p) and pitch circle diameter of the sprocket (D) is given by (where T = Number of teeth on the sprocket)?
Answer: Option 3 Let'
1 Answers 2 views
According to I.B.R., shearing resistance required to shear off the rivet per pitch length (in double shear) is (where n = Number of rivets per pitch length)?
Answer: Option 2 Let'
1 Answers 2 views
Tearing resistance required to tear off the plate per pitch length is (where p = Pitch of rivets, d = Dia. of rivet hole and $${\sigma _{\text{t}}}$$ = Permissible tensile stress for plate material)?
Answer: Option 4 Let'
1 Answers 1 views
The pull required to tear off the plate per pitch length is (where p = Pitch of rivets, t = Thickness of plates and $${\sigma _{\text{t}}},\,\tau $$ and $${\sigma _{\text{c}}}$$ = Permissible tensile, shearing and crushing stresses respectively)?
Answer: Option 3 Let'
1 Answers 2 views
In a shell and tube heat exchanger having square pitch, the shell side equivalent diameter is given by (where, P = pitch, d = outside diameter of the tube)?
Answer: Option 1 Let'
1 Answers 4 views
Which of the following varies as the square root of oil pressure during atomisation of fuel oil through a pressure jet burner?
Answer: Option 3 Let'
1 Answers 2 views
Which of the following is not a product of coal tar distillation?
Answer: Option 4 Let'
1 Answers 2 views
Which of the following is not a product of tar distillation?
Answer: Option 4 Let'
1 Answers 1 views