State regulations for boilers which fall under IBR boiler

1 Answer

Answer :

Boiler Regulations : 1. A boiler cannot be put to use unless it has been registered with the Chief Inspector of Boilers. 2. The maximum working pressure of the boiler has to be determined by Boiler Inspector who will issue certificate for this. Owner cannot exceed this pressure limit in any case. 3. In case of accident, it should be reported by owner within 24 hours with full details. 4. The rules, regulations and bye-laws governing the upkeep and maintenance of boilers, procedure of registration, inspection and certification of maximum pressure, safety conditions etc. are subject to a revision by a Central Board under control of Govt. of India. 5. The boiler house plan, chimney design (Max height 30.48 m from floor) should be approved by boiler inspector. 6. Owner should apply for registration in prescribed format, inspector should fix date of inspection within 30 days, conduct inspection/examination of boiler, Issue the certificate of registration not exceeding 12 months period. 7. Following inspections are carried out by Boiler Inspector at various stages/ levels /needInspection for registration, Hydraulic test, steam test, annual inspection, Inspection under steam, Internal inspection, Accident inspection, Casual inspection 8. Violation of law is liable to prosecution and punishment with fine.

Related questions

Description : As per the Indian boiler regulation (IBR), the type of joint preferred for the circumferential joint is the __________ joint. (A) Butt (B) Lap (C) Welded (D) None of these

Last Answer : (B) Lap

Description : State necessity of super heater in steam boilers. State advantages of economizer. 

Last Answer : Necessity of super heater in steam boilers: 1. The efficiency of the boiler is increase with the use of superheated steam. 2. It eliminates the erosion of the turbine blades. 3. It reduces ... water. 5. This unit improves the overall efficiency of the boiler by reducing the fuel consumption. 

Description : Describe anyone safety mounting used in boilers with sketch.

Last Answer : Boiler Mounting : Fusible Plug Function:  It is very important safety device of a steam boiler, which protects the fire tube boiler against overheating. Location:  It is located just above ... hollow gun became open, the steam rushes into the furnace and puts out the fire (stop). 

Description : Draw Lamont Boiler. Label the components and discuss the working and construction. 

Last Answer : 1. This is a modern high pressure, water tube boiler working on a forced circulation. 2. The circulation is maintained by a centrifugal pump, driven by a steam turbine, using steam from the ... required application. Lamont boilers generates 45 to 50 tones steam per hour at 130 bar with 5000 C.

Description : In a boiler enthalpy of water supplied was 2000 kJ/kg. Enthalpy being added by fuel combustion is 3200 kJ/kg. Using first law of thermodynamics, find amount of heat supplied if steam generation rate is 10 tons per hour.

Last Answer : Heat supplied Q = m (h2-h1) …….(Steady flow energy equation for boiler) ; h2=3200 KJ/kg h1=2000 KJ/kg m = 10 Tons /hour = (10 x 1000)/3600 kg/sec = 2.77 Kg/sec Q = 2.77(3200-2000) = 3324 KJ/sec heat supplied for 10 Tons/hr steam generation

Description : Pick out the wrong statement. (A) Caustic embrittlement of boiler's metallic parts is caused by highconcentration of caustic soda in boiler feed water (B) Cooling and freezing of water kills the ... goes on decreasing (D) Dissolved oxygen content in high pressure boiler feed water should be nil

Last Answer : (B) Cooling and freezing of water kills the bacteria present in it

Description : Deaeration of high pressure boiler feed water is done to reduce (A) Foaming from boilers (B) Its dissolved oxygen content (C) Its silica content (D) Caustic embrittlement

Last Answer : (B) Its dissolved oxygen content

Description : Find false statement a. Tube of supercritical boilers are self-supporting b. Corners are easy to form c. Uniform heating of water takes place in supercritical boiler occurs d. All

Last Answer : c. Uniform heating of water takes place in supercritical boiler occurs

Description : What is the major disadvantage of the Benson boilers? a) Boiler is big in size b) Has large storage capacity c) Deposition of salts d) Bubble formation

Last Answer : c) Deposition of salts

Description : The economiser is used in boilers to........ A]Increase thermal efficiency of boiler B]Economise on fuel C]Extract heat from the exhaust the gases D]Increase flue gas temperature

Last Answer : A]Increase thermal efficiency of boiler

Description : Differentiate water tube boiler and fire tube boilers

Last Answer : Sr. No. Parameter Water tube boiler Fire tube boiler 1 Medium in tube  Water is circulated in tube and hot gases passed over the tube Hot gases are circulated through the ... 8 Example Babcock & Wilcox boiler, Loeffler Boiler Cochran Boiler, Lancashire boiler

Description : What of the following is a key benefit of the Integrated Baseline Reviews (IBR)?

Last Answer : Need answer

Description : Which of the following is not e-banking software? A. ECS B. RTGS C. PIPS D. IBR

Last Answer : C. PIPS Explanation: ECS – Electronic Clearing Service RTGS – Real Time Gross Settlement PIPS is not an e-banking software.

Description : Under-cooling in a refrigeration cycle (a) increases COP (b) decreases COF (c) COP remains unaltered (d) other factors decide COP

Last Answer : Ans: a

Description : A standard ice point temperature corresponds to the temperature of (a) water at 0°C (b) ice at - 4°C (c) mixture of ice, water and vapour under equilibrium conditions under NTP conditions (d) mixture of ice and water Under equilibrium conditions.

Last Answer : Ans: D

Description : Scavenging air in diesel engine means a. air used for combustion under pressure b. forced air for cooling the cylinder c. burnt air containing products of combustion d. air used for forcing burnt gases out of the engines cylinder during the exhaust stroke

Last Answer : ANSWER d. air used for forcing burnt gases out of the engines cylinder during the exhaust stroke

Description : The horizontal line in psychrometric chart joining the change of state of air represents A. humidification B. sensible cooling or heating C. sensible cooling or heating with humidification D. sensible cooling or heating with dehumidification

Last Answer : ANSWER : B

Description : Describe only construction and working of pipe in pipe heat exchanger. State it’s two applications.

Last Answer : Pipe Heat Exchanger: Construction and Working : In Pipe heat exchanger design, an important factor is the type of flow pattern in the heat exchanger. A pipe heat exchanger will ... more compact. Application : Oil refinery industries , Waste water management, Refrigeration system  

Description : State first law of thermodynamics for (i) closed system and cyclic process (ii) closed system and non-cyclic process

Last Answer : First Law of Thermodynamics:  i) Closed System Cyclic Process :- It states that if a system executes a cycle, transferring work and heat through its boundary, the net heat transfer is equivalent to the network ... the system and is known as stored energy or total energy of system.   Q = ΔU + W

Description : State Fourier's law of 'conduction and Stefan Boltzmann law of radiation. Express mathematically.

Last Answer : Fourier law of heat conduction- It state that for homogeneous material, the rate heat transfer in steady state in any direction is linearly proportional to temperature gradient in that direction. Q α dt/ ... proportional to fourth power of absolute temperature of the body. E α T4 E= σT4

Description : State two similarities and two dissimilarities between heat and work.

Last Answer : Heat and work Similarities- Both are not properties of system, both are boundary phenomena, both are path functions, both are form of energy Dissimilarities-Work is high grade energy, heat is low ... but entire work can be converted into heat ; System can possess heat, but it never possess work

Description : Write continuity equation for nozzles. State involved with their units. meaning of all terms 

Last Answer : Continuity equation for nozzle Mass flow rate = Density x Area x Velocity ( Density = 1/v) m = (AC/v ) = A1C1/v1) = (A2C2/v2) where, m = mass flow rate of steam in kg/s A= cross ... given section in m2 v = specific volume of steam at given section in m3/kg C= velocity of steam in m/s

Description : State two factors on which efficiency of cooling tower depends.

Last Answer : Efficiency of cooling tower depends on 1.Losses in duct, piping and joints, pipes should be free from scale/rust 2.Efficient heat transfer, maintenance of piping , Ensure fill is clean and free of debris. 3.Sufficient airflow and correct fan speed. 

Description : Classification Of Air Compressor

Last Answer : Air compressors are classified in several different ways, depending on the specific characteristics and features of the compressor. Here are a few common ways that air compressors are classified: ... range of sizes and capacities, from small, portable units to large, industrial-sized compressors.

Description : The freon group of refrigerants are (a) halo-carbon refrigerants (b) azeotrope refrigerants (c) inorganic refrigerants (d) hydro-carbon refrigerants

Last Answer : Ans: a

Description : The formation of frost on cooling coils in a refrigerator (a) increases heat transfer (b) improves C.O.P. of the system (c) increases power consumption (d) reduces power consumption

Last Answer : Ans: c

Description : For ammonia refrigerating systems, the tubes of a shell and tube condenser are made of (a) copper (b) aluminium (c) steel (d) brass

Last Answer : Ans: c

Description : In milk chilling plant, the usual secondary refrigerant is (a)ammonia (b)sodium silicate (c) glycol (d) brine

Last Answer : Ans: d

Description : In a refrigeration cycle, the super heating……..C.O.P (a)decreases (b)does not change (c) increases (d)none of the above

Last Answer : Ans: a

Description : The condition of refrigerant before entering the expansion or throttle valve, in a vapour compression system (a) dry vapour (b) wet vapour (c)liquid-vapour mixture (d) high pressure saturated liquid

Last Answer : Ans: d

Description : Air refrigeration cycle is used in (a) domestic refrigerators (b) gas liquefaction (c)commercial refrigerators (d) Chillers

Last Answer : Ans: b

Description : The characteristic equation of gases pv = mRT holds good for (a) mono atomic gases (b) diatomic gases (c)real gases (d) ideal gases

Last Answer : Ans: c

Description : The change in evaporator temperature in a refrigeration cycle, as compared to change in condenser temperature, influences the value of C.O.P. (a) more (b) less (c) equally. (d) unpredictable

Last Answer : Ans: a

Description : The evolution of heat of solution takes place in ammonia absorption plant when (a) ammonia vapour goes into solution (b) ammonia vapour is driven out of solution (c) lithium bromide mixes with ammonia (d) weak solution mixes with strong solution

Last Answer : Ans: a

Description : The C.O.P. of a domestic refrigerator in comparison to domestic air conditioner will be (a) same (b) more (c) less (d) dependent on weather conditions

Last Answer : Ans: c

Description : The COP of a vapour compression plant in comparison to vapour absorption plant is (a) more (b) less (c) same (d) more/less depending on size of plant

Last Answer : Ans: a

Description : Which of the following refrigerants has lowest freezing point (a) Freon-12 (b) NH3 (c) CO2 (d) Freon-22

Last Answer : Ans: d

Description : The C.O.P. of a refrigeration cycle with lowering of condenser temperature, keeping the evaporator temperatureconstant, will (a) increase (b) decrease (c) may increase or decrease depending on the type of refrigerant used (d) remain unaffected

Last Answer : Ans: a

Description : The refrigeration effect in a dry evaporator compared to flooded evaporator in a similar plant is (a) same (b) more (c) less (d) more or less depending on ambient conditions

Last Answer : Ans: c

Description : Cooling water is required for following equipment in ammonia absorption plant (a) condenser (b) evaporator (c) condenser and absorber (d) condenser, absorber and separator (rectifier).

Last Answer : Ans: d

Description : Reducing suction pressure in refrigeration cycle (a) lowers evaporation temperature (b) increases power required per ton of refrigeration (c) lowers compressor capacity because vapour is lighter (d) all of the above.

Last Answer : Ans: d

Description : The general rule for rating refrigeration systems (excepting for CO2 system) is to approximate following h.p. per ton of Refrigeration (a) 0.1 to 0.5 h.p. per ton of refrigeration (b) 0.5 to 0.8 h.p. per ... (c) 1 to 2 h.p. per ton of refrigeration (d) 2 to 5 h.p. per ton of refrigeration

Last Answer : Ans: c

Description : Most of the domestic refrigerators work on the following refrigeration system (a) vapour compression (b) vapour absorption (c) carnot cycle (d) electrolux refrigerator

Last Answer : Ans: a

Description : Vertical lines on pressure-enthalpy chart show constant (a) pressure lines (b) temperature lines (c) total heat lines (d) entropy lines

Last Answer : Ans: c

Description : The C.O.P of a refrigeration cycle with increase in evaporator temperature, keeping condenser temperature constant, will (a) increase (b) decrease (c) remain unaffected (d) may increase or decrease depending on the type of refrigerant used

Last Answer : Ans: a

Description : The coefficient of performance is the ratio of the refrigerant effect to the (a) heat of compression (b) work done by compressor (c) enthalpy increase in compressor (d) all of the above

Last Answer : Ans: d

Description : For obtaining high COP, the pressure range of compressor should be (a) high (b) low (c) optimum (d) any value

Last Answer : Ans: b

Description : Choose the wrong statement (a) Temperature of medium being cooled must be below that of the evaporator (b) Refrigerant leaves the condenser as liquid (c) All solar thermally operated absorption systems are capable only of intermittent operation (d) frost on evaporator reduces heat transfer

Last Answer : Ans: a

Description : The advantage of dry compression is that (a) it permits higher speeds to be used (b) it permits complete evaporation in the evaporator (c) it results in high volumetirc and mechanical efficiency (d) all of the above

Last Answer : Ans: d

Description : Moisture in freon refrigeration system causes (a) ineffective refrigeration (b) high power consumption (c) freezing automatic regulating valve (d) corrosion of whole system

Last Answer : Ans: c