Description : What is the equation for the work done by a constant temperature system? A. W = mRTln(V2-V1) B. W = mR( T2-T1 ) ln( V2/V1) C. W = mRTln (V2/V1) D. W = RT ln (V2/V1) Formula : W=∫ pdV lim1,2 ∫ = mRT / V
Last Answer : W = mRTln (V2/V1)
Description : Q No: 251 In a sludge digestion tank if the moisture content of sludge V1 litres is reduced from p1 % to p2 % the volume V2 is A. [(100 + P1)/(100 – P2)] V1 B. [(100 – P1)/(100 + P2)] V1 C. [(100 – P1)/(100 – P2)] V1 D. [(100 + P2)/(100 – P1)] V1
Last Answer : ANS: C
Description : What are V1 and V2? How they are connected? What is the harm in opening F/M vault door during reactor operation?
Last Answer : The reactor building is divided into two areas. They are V1 and V2. V1 - Dry volume area. V2 - Wet volume area. V1 area includes F/M vault, boiler room, and entire dome area. ... directly goes to F/M maintenance area, which is a V2 area. Thus pressurizing the entire building.
Description : Area(s) in the visual cortex involved in colour vision include: a. V1 b. V2 c. V3 d. V8
Last Answer : V8
Description : essure drop (Δp) for a fluid flowing in turbulent flow through a pipe is a function of velocity (V) as (A) V1.8 (B) V-0.2 (C) V2.7 (D) V
Last Answer : (D) V
Description : The compressibility factor of a gas is given by (where, V1 = actual volume of the gas V2 = gas volume predicted by ideal gas law) (A) V1/V2 (B) V2/V1 (C) V1- V2 (D) V1.V2
Last Answer : (A) V1/V2
Description : The expression for entropy change given by, ΔS = nR ln (V2/V1) + nCvln (T2/T1) is valid for (A) Reversible isothermal volume change (B) Heating of a substance (C) Cooling of a substance (D) Simultaneous heating and expansion of an ideal gas
Last Answer : (D) Simultaneous heating and expansion of an ideal gas
Description : A certain gas with cp = 0.529Btu/lb°R and R = 96.2ft/lbºR expands from 5 ft and 80ºF to 15 ft while the pressure remains constant at 15.5 psia. a. T2=1.620ºR, ∫H = 122.83 Btu b. T2 = 2°R, ∫H = 122.83 Btu c. ... , ∫H = 122.83 Btu d. T2 = 1°R, ∫H = 122.83 Btu T2= V2(t2)/V1 and ∫H = mcp (T2-T1)
Last Answer : T2=1.620ºR, ∫H = 122.83 Btu
Description : Gas is enclosed in a cylinder with a weighted piston as the stop boundary. The gas is heated and expands from a volume of 0.04 m^3 to 0.10 m^3 at a constant pressure of 200kPa.Calculate the work done by the system. A. 8 kJ B. 10 kJ C.12 kJ D.14 kJ Formula: W = p(V2-V1)
Last Answer : 12 kJ
Description : Helium ( R= 0.4698 BTU/lbm-˚R ) is compressed isothermally from 14.7 psia and 68 ˚F. The compression ratio is 1:4. Calculate the work done by the gas. A. –1454 BTU/lbm B. -364 BTU/lbm C.-187BTU/lbm D.46.7 BTU/lbm Formula: W = RT ln (V2/V1)
Last Answer : -364 BTU/lbm
Description : Twenty grams of oxygen gas are compressed at a constant temperature of 30 ˚C to 5%of their original volume. What work is done on the system. A.824 cal B.924 cal C.944 cal D.1124 cal Formula: W = -mRTln (V2/V1) Where R = (1.98 cal/gmole·K) (32 g/gmole)
Last Answer : 1124 cal
Description : Which of the following is the mathematical representation of the Charles’s law? A. V1/V2= P2/P1 B. V1/T1=V2/T2 C. V1/T2=V2/T1 D. V1/V2=√P2/√P1
Last Answer : V1/T1=V2/T2
Description : A graph is said to be ……………… if the vertices can be split into two sets V1 and V2 such there are no edges between two vertices of V1 or two vertices of V2. A) Partite B) Bipartite C) Rooted D) Bisects
Last Answer : B) Bipartite
Description : Che following is true of desmopressin except: A. It is nonselective V1 and V2 receptor agonist B. It is more potent and longer acting than arginine vasopressin (AVP) C. It is preferred over AVP for treatment of diabetes insipidus D. It can be administered orally
Last Answer : A. It is nonselective V1 and V2 receptor agonist
Description : Consider the graph given below:
Last Answer : (C) (v1, v4, v6, v7); (v2, v3, v5, v8)
Description : KVA of an Auto-transformer of V1/V2 = 220/150 for a load of 100KVA is: a. 100KVA b. 50KVA c. 33.3KVA d. 20KVA
Last Answer : KVA of an Auto-transformer of V1/V2 = 220/150 for a load of 100KVA is: a. 100KVA b. 50KVA c. 33.3KVA d. 20KVA
Description : A fluid flows in a steady manner between two section in a flow line at section 1: A 1 = 1ft², V1 = 100fpm, volume1 of 4ft³/lb. at sec2: A2 = 2 ft², p= 0.20 lb/ft³ calculate the velocity at section 2. a. 625 fpm b. 567 fpm c. 356 fpm d. None of the above
Last Answer : 625 fpm
Description : Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area; in the casting) (A) V/A (B) V/A2 (C) V2/A (D) V2/A2
Last Answer : (D) V2/A2
Description : If a1, a2, .... an are positive numbers such that a1.a2.a3 .... an = 1, then their sum is -Maths 9th
Last Answer : answer:
Description : If a1, a2, a3 ....... an are positive real numbers whose product is a fixed number ‘c’, then the minimum value of a1 + a2 ..... + an–1 + 2an is -Maths 9th
Description : If a1, a2, ....., an are distinct positive real numbers such that a1 + a2 + ..... + an = 1, then -Maths 9th
Description : Let a1, a2, ..... an be positive real numbers such that a1a2a3 ...... an = 1. Then (1 + a1) (1 + a2) ..... (1 + an) is -Maths 9th
Description : From the following figure, determine the resultant of four forces A1, A2, A3, A4.
Last Answer : From the following figure, determine the resultant of four forces \(\overset\rightarrow{A}_1\), \(\overset\ ... A}_3\), \(\overset\rightarrow{A}_4\).
Description : Two ores A1 and A2 of a metal M show the following reactivity: `A_(1)=CuCo_(3).Cu(OH)_(3),S=Cu` `P=Cu_(2)I_(2): G=SO_(2)` . Then `A_(2)` is
Last Answer : Two ores A1 and A2 of a metal M show the following reactivity: `A_(1)=CuCo_(3).Cu(OH)_(3),S=Cu` `P=Cu_(2) ... )` B. `CuO` C. `CuCO_(3)` D. `Cu_(2)S`
Description : Lysolecithin is formed from lecithin by the action of (A) Phospholipase A1 (B) Phospholipase A2 (C) Phospholipase C (D) Phospholipase D
Last Answer : Answer : B
Description : Anti-inflammatory corticosteroids inhibit (A) Phospholipase A1 (B) Phospholipase A2 (C) Cyclo-oxygenase (D) Lipo-oxygenase
Description : Phenylbutazone and indomethacin inhibit (A) Phospholipase A1 (B) Phospholipase A2 (C) Cyclo-oxygenase (D) Lipo-oxygenase
Last Answer : Answer : C
Description : A ’suicide enzyme’ is (A) Cycloxygenase (B) Lipooxygenase (C) Phospholipase A1 (D) Phospholipase A2
Last Answer : Answer : A
Description : Aspirin inhibits the activity of the enzyme: (A) Lipoxygenase (B) Cyclooxygenase (C) Phospholipae A1 (D) Phospholipase A2
Description : Yohimbine is an antagonist of ______ receptors. (a) a1 (b) a2 (c) both (a) and (b) (d) None of the above
Last Answer : Ans: B
Description : If a1 and a2 are the relative volatilities when the pressure in the distillation column is 1 and 2 atm respectively. Pick out the correct statement. (A) a1 = a2 (B) a1 = 2a2 (C) a1 = 0.5 a2 (D) None of these
Last Answer : (D) None of these
Description : Two solutions A1 & A2 have pH value of 2 & 6 respectively. It implies that the solution (A) A1is more alkaline than solution A2 (B) A1is highly acidic (C) A2is very slightly acidic (D) Both (B) & (C)
Last Answer : (D) Both (B) & (C)
Description : The total extension in a bar, consists of 3 bars of same material, of varying sections is a. P/E(L1/A1+L2/A2+L3/A3) b. P/E(L1A1+L2A2+L3A3) c. PE(L1/A1+L2/A2+L3/A3) d. PE(L1/A1+L2/A2+L3/A3)
Last Answer : a. P/E(L1/A1+L2/A2+L3/A3)
Description : Night blindness is due to deficiency of vitamin: (a) A1 (b) A2 (c) D (d)B complex
Last Answer : (a) A1
Description : The average marks scored by two Class A1 and A2 students are 120 and 130 respectively. If 8 students are moved from Class A2 to Class A1 and the average marks of the two Class get interchanged. Find the total number ... average marks scored by the 8 students who moved is 150 A) 25 B) 30 C) 35 D) 40
Last Answer : D) let the number of students in Class A1 be x and class A2 be y. Total marks scored by the students will be 120x and 130y, the average gets interchanged after moving student from y Thus we get, 130y- ... (x+8) 120x+1200=130x+1040 10x=160 X=16 Thus the total number of students =24+16=40
Description : An ideal flow of any fluid must satisfy (A) Pascal law (B) Newton's law of viscosity (C) Boundary layer theory (D) Continuity equation
Last Answer : Answer: Option D
Description : An ideal flow of any fluid must fulfill the following (A) Newton's law of motion (B) Newton's law of viscosity (C) Pascal' law (D) Continuity equation
Description : The equation of continuity holds good when the flow (A) Is steady (B) Is one dimensional (C) Velocity is uniform at all the cross sections (D) All of the above
Description : The continuity equation is connected with (A) Open channel/pipe flow (B) Compressibility of fluids (C) Conservation of mass (D) Steady/unsteady flow
Last Answer : Answer: Option C
Last Answer : 1
Description : A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun's equation for the above fluid-particle ... fluidisation velocity, VOM is (A) 12 mm/s (B) 16 mm/s (C) 24 mm/s (D) 28 mm/s
Last Answer : (B) 16 mm/s
Description : A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun's equation for the above fluid-particle system ... What is the porosity of the fluidised bed? (A) 0.2 (B) 0.5 (C) 0.7 (D) 0.8
Last Answer : (C) 0.7
Description : Which of the following represents the Virial equation of state? (A) T = [RT/(V- b)] - [a/√T. V(V + b)] (B) PV/RT = 1 + (B/V) + (C/V2) + …… (C) n1u2 + μ2μ1 = 0 (D) None of these
Last Answer : (B) PV/RT = 1 + (B/V) + (C/V2) + ……
Description : Which of the following is Virial equation of state? (A) (p + a/V2)(V - b) = nRT (B) PV = nRT (C) PV = A + B/V + C/V2 + D/V3 + ... (D) None of these
Last Answer : (C) PV = A + B/V + C/V2 + D/V3 + ...
Description : Internal energy of a gas obeying Van-Der-Waals equation of state, [p + (a/v2)] (V - b) = RT, depends upon its (A) Pressure & temperature (B) Pressure & specific volume (C) Temperature & specific volume (D) Temperature only
Last Answer : (A) Pressure & temperature
Description : An implication of the continuity equation of conductors is given by a) J = σ E b) J = E/σ c) J = σ/E d) J = jwEσ
Last Answer : a) J = σ E
Description : The continuity equation is a combination of which of the two laws? a) Ohm’s law and Gauss law b) Ampere law and Gauss law c) Ohm’s law and Ampere law d) Maxwell law and Ampere law
Last Answer : b) Ampere law and Gauss law
Description : The continuity equation (A) Is independent of the compressibility of the fluid (B) Is dependent upon the viscosity of the fluid (C) Represents the conservation of mass (D) None of these
Last Answer : (C) Represents the conservation of mass
Description : The continuity equation in ideal fluid flow states that (A) Net rate of inflow into any small volume must be zero (B) Energy is not constant along a streamline (C) Energy is constant along a streamline (D) There exists a velocity potential
Last Answer : (A) Net rate of inflow into any small volume must be zero
Description : For one dimensional flow of an incompressible fluid in unsteady state in x-direction, the continuity equation is given by (A) ∂u/∂x = 0 (B) ∂(ρu)/∂x = 0 (C) (∂u/∂x) = - (∂ρ/∂t) (D) ∂ρ/∂t = 0
Last Answer : (A) ∂u/∂x = 0