Description : Pick up the correct statement from the following: (A) If the slope of the curve of a mass diagram in the direction of increasing abscissa is downward, it indicates an embankment (B) The ... and the next forward maximum ordinate represents the whole volume of a cutting (D) All the above
Last Answer : (D) All the above
Description : According to Ellingham diagram the oxidation reaction of carbon and carbon monoxide may be used to reduce which one of the following oxides at the low
Last Answer : According to Ellingham diagram the oxidation reaction of carbon and carbon monoxide may be used to reduce which one of ... B. `Cu_(2)O` C. MgO D. ZnO
Description : `DeltaG^(@) vsT` plot in the Ellingham diagram slopes down for the reaction.
Last Answer : `DeltaG^(@) vsT` plot in the Ellingham diagram slopes down for the reaction. A. `Mg+(1)/(2)O_(2)toMgO` B. ` ... (2)toCO` D. `CO+(1)/(2)O_(2)toCO_(2)`
Description : Ellingham Diagram is useful
Last Answer : Ellingham Diagram is useful A. To know thetempreature where phase transformation ocuurs B. To know the ... of metal oxide D. All of the above
Description : At the point of intersection for any two reactions for any two reactions in Ellingham diagram, the gibbs energy `(DeltaG)` changes becomes
Last Answer : At the point of intersection for any two reactions for any two reactions in Ellingham diagram, the gibbs energy `(DeltaG ... `gt1` B. 1 C. `lt0` D. 0
Description : Calcium carbonate decomposes into calcium oxide & carbon dioxide Her results:Mass of calcium carbonate before heating = 2.00 g Mass of calcium oxide left after heating = 1.12 g work out the mass of carbon dioxide released during the decomposition?
Last Answer : I am not sure of the answer so can someone help me pls
Description : When both the fluids flow concurrently in an absorber, the slope of the operating line is (A) -ve (B) +ve (C) 1 (D) -1
Last Answer : (A) -ve
Description : The slope of the operating line for a single component co-current absorber when plotted in terms of mole ratio units is (A) 0 (B) ∞ (C) -ve (D) +ve
Last Answer : (C) -ve
Description : The inputs The inputs to a transformation process ransformation process include all include all of the following except following except a. Materials b. People d. Information
Last Answer : b. People
Description : A steep slope on a phase change graph indicates?
Last Answer : Heirhey
Description : What is the name of the point on a phase diagram which indicates the temperature above which a gas cannot be converted to a liquid?
Last Answer : ANSWER: THE CRITICAL TEMPERATURE
Description : A sudden increase or decrease in shear force diagram between any two points indicates that there is (a) No loading between the two points (b) Point loads between the two points (c) U.D.L. between the two points (d) None of these
Last Answer : (b) Point loads between the two points
Description : Pick out the correct statement. (A) The slope of the stripping line is always less than unity (B) For a given separation in a binary distillation column, with increase in reflux ratio ( ... (D) Kremser-Brown-Souder's equation is used to calculate the efficiency of a plate tower
Last Answer : C) In Ponchon-Savarit method of no. of theoretical plate determination, the stripping and rectifying operating lines are vertical at total reflux
Description : Metal present in the exhaust gases of ve- hicles?
Last Answer : Lead
Description : Due to change of medium the phase ve- locity of the wave is changed but its frequency remains?
Last Answer : Constant
Description : Out of constant pressure and constant volume lines on TS diagram which line has higher slope ? And whether slope is constant or variable ?
Last Answer : Constant volume line. Slope is variable.
Description : On a P-V diagram of an ideal gas, suppose a reversible adiabatic line intersects a reversible isothermal line at point A. Then at a point A, the slope of the reversible adiabatic line (∂P/∂V)s and the slope of the reversible isothermal line ... Y (C) (∂P/∂V)S = y(∂P/∂V)T (D) (∂P/∂V)S = 1/y(∂P/∂V)T
Last Answer : (C) (∂P/∂V)S = y(∂P/∂V)T
Description : The slope of isochrone at any point at a given time indicates the rate of change of (A) Effective stress with time (B) Effective stress with depth (C) Pore water pressure with depth (D) Pore water pressure with time
Last Answer : Answer: Option C
Description : The electric field exist around: (a) Charges (b) On the left side (c) At the –ve charge (d) At the +ve charge
Last Answer : (a) Charges
Description : A three-phase alternator is operating at 450 volts with the switchboard ammeter indicating 300 amps. The kw meter currently indicates 163.6 KW, with a power factor of 0.7. If the power factor increases to 0.8, the KW meter reading would increase by ___ A. 17.8 KW B. 23.2 KW C. 30.6 KW D. 37.8 KW
Last Answer : Answer: B
Description : The electrophysiological effects of digitalis on Purkinje fibres include the following except: A. Enhancement of resting membrane potential B. Decrease in the slope of phase-0 depolarization C. Increase in the rate of phase-4 depolarization D. Abbreviation of action potential duration
Last Answer : A. Enhancement of resting membrane potential
Description : `Ti` can be purified by Van Arkel process. `TiI_(4)` is a volatile compound which decomposes at a high temperature.
Last Answer : `Ti` can be purified by Van Arkel process. `TiI_(4)` is a volatile compound which decomposes at a ... D. Statement-1 is false but Statement -2 is true
Description : Number of volums of `O_(2)` formed when 3 volumes of Ozone decomposes
Last Answer : Number of volums of `O_(2)` formed when 3 volumes of Ozone decomposes A. 2 B. `4.5` C. 6 D. `1.5`
Description : How do decomposes help recycle minerals and nutrients?
Last Answer : Need answer
Description : What is the relationship between decomposes and plants?
Last Answer : The relationship between decomposers and plants are that decomposers give plants nutrients and minerals.
Description : (4) Decomposition of manganese dioxide Explanation: One of the two chemical methods starts from natural manganese dioxide and converts it using dinitrogen tetroxide and water to manganese nitrate ... 400°C, the salt decomposes, releasing N2O4 and leaving a residue of purified manganese dioxide.
Last Answer : The mass number of a nucleus is - (1) always less than its atomic number (2) the sum of the number of protons and neutrons present in the nucleus (3) always more than the atomic weight (4) a fraction
Description : A liquid with high boiling point decomposes on simple distillation but it can be steam distilled for its purification .Explain how is it possible?
Last Answer : In steam distillation boiling occurs when vapour pressure of organic compound & steam becomes equal to atmospheric pressure. As vapour pressure of water is higher than the organic liquid. ... organic liquid vaporizes at a temperature below its boiling point in steam distillation without decomposing.
Description : Suggest a method to purify a liquid which decomposes at its boiling point.
Last Answer : The process Distillation under reduced pressure is used to purify a liquid which decomposes at its boiling point.
Description : Why Li2CO3 decomposes at a lower temperature whereas Na2CO3 at higher temperature ?
Last Answer : Ans.Li2CO3 is a salt of a weak acid (CO2) and a weak base (LiOH). Since the weak base cannot attract CO2 Strongly, therefore, Li2CO3 decomposes at a lower temperature.On the other hand ,NaOH is a Much stronger base than LiOH and hence can attract CO2 more strongly.
Description : Iron is not used alone as a catalyst in ammonia synthesis, because (A) Its activity declines rapidly, if heated to above 520°C (B) It decomposes ammonia (C) It gets oxidised above 500°C (D) None of these
Last Answer : (A) Its activity declines rapidly, if heated to above 520°C
Description : What is the unit of the rate constant in a chemical reaction in which 10% of the reactant decomposes in one hour, 20% in two hours, 30% in three hours and so on? (A) Litre/mole.second (B) Moles/litre.second (C) Litre/mole (D) Litre/second
Last Answer : (A) Litre/mole.second
Description : A liquid decomposes by irreversible first order kinetics and the half life period of this reaction is 8 minutes. The time required for 75% conversion of the liquid will be __________ minutes. (A) 4 (B) 8 (C) 12 (D) 16
Last Answer : (D) 16
Description : Decomposition rate of a liquid 'X' which decomposes as per the reaction as shown in the bellow figure is given by: (A) K1 . CX (B) (K1 + K2 + K3 ) CX (C) (K1 + K2 ) CX (D) (K2 + K3 ) CX
Last Answer : (C) (K1 + K2 ) CX
Description : During the manufacture of sulphuric acid, the temperature of molten sulphur is not increased beyond 160°C, as (A) It is very corrosive at elevated temperature (B) Its viscosity is not reduced on ... be further reduced) (C) It decomposes on further increasing the temperature (D) None of these
Last Answer : (B) Its viscosity is not reduced on further heating (hence pressure drop on pumping it, cannot be further reduced)
Description : When MMA welding what will be the effect on the weld f the power source was changed from AC to DC-ve? a) None b) Higher deposition rate c) It would slightly increase the depth of penetration d) The arc would become unstable
Last Answer : b) Higher deposition rate
Description : A three-phase electrical system is equipped with ground detecting lamps. If one of the lamp goes dark and the other two burn normally before and after the test switch is operated, this indicates _______________. ... of the three phases D. the voltage to the dark lamp is less than that of the system
Last Answer : Answer: A
Description : Following statement is true about lidocaine (a) Reduce the slope of Phase 4 (b) Threshold excitability is not altered (c) Action potential is not affected (d) All of the above
Last Answer : Ans: A
Description : For the formation of metal oxide, `deltaG^(@)` __________ with increase in temperature.
Last Answer : For the formation of metal oxide, `deltaG^(@)` __________ with increase in temperature. A. Only I B. I,II only C. I,II,III only D. All
Description : The specific volume on a psychrometric chart: a. Is plotted on vertical lines and read on the horizontal scale at the bottom of the chart b. Is plotted on horizontal lines and read on the vertical ... chart e. Is plotted on vertical lines and read on the horizontal scale at the top of the chart
Last Answer : Answer: D
Description : The individual mass transfer co-efficients (moles/m2s) for absorption of a solute from a gas mixture into a liquid solvent are, KL = 4.5 and KG = 1.5. The slope of the equilibrium line is 3. Which of ... A) Liquid side (B) Gas side (C) Interfacial (D) Both liquid and gas side
Last Answer : (B) Gas side
Description : Pick up the correct statement from the following: (A) If the bed level is above N.S.L. the canal is called fully in baking and the berms are designed as 3 d where d is full supply depth of water ... and partly in filling and berms are designed as 2d where d is full supply depth (D) All the above
Description : Statement `N` atom has two different oxidation states in `NH_(4)NO_(2)`. Explanation One `N` atom has-`ve` oxidation number as it is attached with les
Last Answer : Statement `N` atom has two different oxidation states in `NH_(4)NO_(2)`. Explanation One `N` atom has-`ve` ... C. I, II and III D. I, II and IV
Description : Statement-1: The reduction of a metal oxide is easier if the metal formed is in liquid state at the temperature of reduction. Statement-2: The value o
Last Answer : Statement-1: The reduction of a metal oxide is easier if the metal formed is in liquid state at ... . Statement-1 is false but Statement -2 is true
Description : Pick up the correct statement from the following: (A) Higher workability indicates unexpected increase in the moisture content (B) Higher workability indicates deficiency of sand (C) If the concrete mix is dry, the slump is zero (D) All the above
Last Answer : Answer: Option D
Description : Which of the diagrams shown in the illustration, indicates the highest induced voltage? EL-0028 A. Diagram 'A' only B. Diagram 'B' only C. Both diagrams 'A' and 'C' D. Both diagrams 'B' and 'D'
Description : The wiring diagram for the motor starting circuit shown in the illustration indicates ______________. EL-0007 A. resistance starting B. reduced voltage starting C. low voltage protection D. low voltage release
Last Answer : Answer: C
Description : Pick out the wrong statement (A) A horizontal line on the humidity chart indicates the temperature changes at constant molal humidity (B) When water is cooled from 80 to 70°C by exposure ... & air cannot be increased by either reducing the mixture temperature or by increasing the total pressure
Last Answer : (D) Relative saturation of unsaturated mixture of water vapor & air cannot be increased by either reducing the mixture temperature or by increasing the total pressure
Description : Which of the following statement is incorrect? a. Multiplexers are designed to accept data from several I/O devices and transmit a unified stream of data on one communication line b. HDLC is a standard ... indicates that it is ready to accept data d. RTS/CTS is the way the terminal indicates ringing
Last Answer : RTS/CTS is the way the DTE indicates that it is ready to transmit data and the way the DCW indicates that it is ready to accept data
Description : Williot-Mohr diagram is used to determine a.slope of beams b.107 dynes c.deflection in beams d.deflection in trusses e.slope of trusses
Last Answer : d. deflection in trusses