i am giving BARC Trainee exam in chemical. Can anyone tell the syllabus and question paper pattern for OCES for BARC trainee?

1 Answers  

---

What is difference between Overall heat transfer coeficient & individual heat transfer coefficient

4 Answers   CVSR, NFTDC,

---

Are there any special considerations to be taken into account for combusting ammonia?

0 Answers  

---

What are some typical applications for glass-lined reactors?

0 Answers  

---

what is difference between m3 and nm3?

2 Answers   Coromandel,

---

How to determine the particle size distribution for a given bulk solid?

3 Answers  

---

What do we use carburizing/nitriding chemicals for?

0 Answers   Ashok Leyland,

---

Tell us about a time when you failed to meet a deadline. What were the repercussions?

4 Answers   Bhavani Engineering Works, Caltex, Emirates, Holiday Inn, Regent, United States Seafoods,

---

MICROBIOLOGICAL ENGINEERING - QUESTION 28.1 : In the calculation of the growth of bacteria, colony forming unit (CFU) in serial dilution is used. In a laboratory, viable count assay is used to estimate CFU. Formula applied is CFU / mL = (number of colonies x dilution) / (amount plated, in unit mL). Acceptable plate count is either between 20 and 200 or between 30 and 300 according to 2 different references. A wastewater sample of 200 ml is added to and mixed with 1.8 L of sterile water. Another 200 ml of the mixture is added to and mixed with 1.8 L of sterile water. (a) Calculate the dilution of first mixture and the dilution of the second mixture. (b) 100 microlitres of wastewater samples from the first mixture and the second mixture are placed separately on 2 different alga plates. The first plate has 250 colonies and the second plate has 23 colonies. Calculate the average CFU / mL.

1 Answers  

---

Explain how do you design a vapor-liquid separator or a flash drum?

0 Answers  

---

HOw to derive reynolds equation?

1 Answers  

---

REACTION ENGINEERING - EXAMPLE 13.3 : The half-life for first order reaction could be described in the differential equation dC / dt = -kC where k is a constant, C is concentration and t is time. (a) Find the equation of C as a function of t. (b) Find the half life for such reaction or the time required to reduce 50 % of the initial concentration, where k = 0.139 per minute. (c) When the initial concentration Co is 16 mol / cubic metre, how long does the reaction required to achieve the final concentration of 1 mol / cubic metre?

1 Answers  

---