A hot liquid is kept in a big room. The logarithm of the numerical valueof the temperature difference between the liquid and the room is plotted

against time. The plot will be very nearly a/an

(A) Ellipse

(B) Straight line

(C) Parabola

(D) Circular arc

1 Answer

Answer :

(B) Straight line


Related questions

Description : The stress-strain curve concrete in compression follows [ A ] a straight line [ B ] a rectangular parabolic curve [ C ] a semi circular arc [ D ] a cubic parabola

Last Answer : [ B ] a rectangular parabolic curve

Description : The stress-strain curve concrete in compression follows [ A ] a straight line [ B ] a rectangular parabolic curve [ C ] a semi circular arc [ D ] a cubic parabola

Last Answer : [ B ] a rectangular parabolic curve

Description : The locus of the moment of inertia about inclined axes to the principal axis, is  (A) Straight line  (B) Parabola  (C) Circle  (D) Ellipse

Last Answer : (D) Ellipse

Description : The locus of the end point of the resultant of the normal and tangential components of the stress  on an inclined plane, is  (A) Circle  (B) Parabola  (C) Ellipse  (D) Straight line 

Last Answer : (C) Ellipse 

Description : If there is no impervious boundary at the bottom of a hydraulic structure, stream lines tend to follow: (A) A straight line (B) A parabola (C) A semi-ellipse (D) A semi-circle

Last Answer : (C) A semi-ellipse

Description : The graphical representation of Ohms law is a. hyperbola b. Ellipse c. parabola d. straight line

Last Answer : d. straight line

Description : Which of the following represents the plot of filtrate volume versus time for constant pressure filtration? (A) Parabola (B) Straight line (C) Hyperbola (D) Exponential curve

Last Answer : (A) Parabola

Description : Which one of the following does not belong to the family of conics? a.Parabola b.Ellipse c.Hyperbola d.Line

Last Answer : d.Line

Description : Which of the following is the locus of a point that moves in such a manner that its distance from a  fixed point is equal to its distance from a fixed line multiplied by a constant greater than one  (A) Ellipse  (B) Hyperbola  (C) Parabola  (D) Circle 

Last Answer : (B) Hyperbola 

Description : The locus of reaction of a two hinged semi-circular arch, is  (A) Straight line  (B) Parabola  (C) Circle  (D) Hyperbola 

Last Answer : (A) Straight line 

Description : The bending moment diagram for a cantilever with U.D.L. over the whole span will be (a) Triangle (b) Rectangle (c) Parabola (d) Ellipse

Last Answer : (c) Parabola

Description : Assuming constant gravity and no air resistance, the path of a cannonball fired from a cannon is: w) a semi-circle x) an ellipse y) a parabola z) a hyperbola

Last Answer : ANSWER: Y -- A PARABOLA 

Description : For slopes of limited extent the surface of slippage, is usually along (A) A parabolic arc (B) An elliptical arc (C) A straight line (D) A circular arc

Last Answer : (D) A circular arc

Description : Path followed by water jet issuing from the bottom of a water tank will be a (A) Parabola (vertex being at the opening) (B) Hyperbola (C) Horizontal straight line (D) Zig-zag path (which is geometrically undefined)

Last Answer : (A) Parabola (vertex being at the opening)

Description : Isotherm on an enthalpy-concentration diagram, for an ideal solution will be a (A) Straight line (B) Sine curve (C) Parabola (D) Hyperbola

Last Answer : (A) Straight line

Description : A man in a train moving with a constant velocity drops a ball on the platform. The path of the ban as seen by an observer standing on the platform is – (1) A straight line (2) A circle (3) A parabola (4) None of these

Last Answer : (3) A parabola Explanation: In the reference frame of the platform the ball has initial horizontal velocity equal to the velocity of the train. The vertical direction is the same observed on the train because both observers agree that gravity is acting on the ball causing an acceleration g.

Description : A boy sitting in a train moving with a uniform velocity drops a coin outside. A man standing outside the train will find the trajectory of the coin to be - (1) a parabola (2) a horizontal straight line (3) a vertical straight line (4) a circle

Last Answer : (1) a parabola Explanation: Parabola, because when the coin is dropped at a particular point, it has the same velocity as the running train. So, by Newton's first law, it continues its motion horizontally with that velocity.

Description : Graph of p against 1⁄V is A. curve B. straight line C. parabola D. hyperbola

Last Answer : straight line

Description : A cable with a uniformly distributed load per horizontal metre run will take the following shape (A) Straight line (B) Parabola (C) Hyperbola (D) Elliptical

Last Answer : (B) Parabola

Description : Camber in pavements is provided by (A) Straight line method (B) Parabola method (C) Straight at the edges and parabolic at the crown (D) All the above

Last Answer : Answer: Option D

Description : For any part of a beam subjected to uniformly distributed load, bending moment diagram is (a) Horizontal straight line (b) Vertical straight line (c) Line inclined to x-axis (d) Parabola

Last Answer : d) Parabola

Description : For any part of a beam subjected to uniformly distributed load, Shear force diagram is (a) Horizontal straight line (b) Vertical straight line (c) Line inclined to x-axis (d) Parabola

Last Answer : (c) Line inclined to x-axis

Description : For any part of a beam between two concentrated load, Bending moment diagram is a (a) Horizontal straight line (b) Vertical straight line (c) Line inclined to x-axis (d) Parabola

Last Answer : (c) Line inclined to x-axis

Description : 7-For any part of the beam, between two concentrated load Shear force diagram is a (a) Horizontal straight line (b) Vertical straight line (c) Line inclined to x-axis (d) Parabola

Last Answer : Na

Description : To a person standing on shore, an object dropped from the mast of a passing sailboat will trace what path, assuming negligible air resistance. Is it: w) vertical straight line x) slanted straight line y) parabola z) hyperbola

Last Answer : ANSWER: Y -- PARABOLA

Description : A man in a train moving with a constant velocity drops a ball on the platform. The path of the ball as seen by an observer standing on the platform is (1) A straight line (2) A circle (3) A parabola (4) None of these

Last Answer : A parabola

Description : The curve of a catenary by nature is a.hyperbolic b.ellipse c.107 dynes d.circular e.parabolic

Last Answer : e. parabolic

Description : Which of the following situations can be approximated to a steady state heat transfer system? (A) A red hot steel slab (having outside surface temperature as 1300°C) exposed to the atmospheric air at ... flowing at the rate of 6 Kg/minute through a copper pipe exposed to atmospheric air at 35°C

Last Answer : (B) 10 kg of dry saturated steam at 8 kgf/cm2 flowing through a short length of stainless steel pipe exposed to atmospheric air at 35°C

Description : For a zero order chemical reaction, the (A) Half life period is directly proportion to the initial concentration of the reactants (B) Plot of products concentration with time is a straight line through the origin (C) Products concentration increases linearly with time (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Description : Pick out the correct statement. (A) Human blood is a Newtonian fluid (B) A Newtonian fluid obeys Newton's law of cooling (C) For a non-Newtonian fluid, a straight line passes through the origin in a plot between shear stress and shear gradien

Last Answer : (B) A Newtonian fluid obeys Newton's law of cooling

Description : From Arrhenius law, a plot of loge K versus 1/T gives a straight line with a slope of (-E/R). The unit of E/R is (A) k cal (B) k cal/°K (C) °K (D) k cal. °K

Last Answer : (C) °K

Description : Following the six-tenth factor rule, if a log-log plot of capacity of the equipment vs. cost of the equipment is made, then a straight line is obtained, whose slope is equal to (A) 0.1 (B) 0.6 (C) 0.2 (D) 0.8

Last Answer : (B) 0.6

Description : One moles of anhydrous `AB` dissolves in water and liberates `21.0 J mol^(-1)` of heat. The valueof `DeltaH^(Theta)` (hydration) of `AB` is `-29.4 J m

Last Answer : One moles of anhydrous `AB` dissolves in water and liberates `21.0 J mol^(-1)` of heat. The valueof `DeltaH^(Theta) ... mol^(-1)` D. `-8.4 J mol^(-1)`

Description : In_____, the level of the voltagedetermines the valueof the bit. A) NRZ-I B) NRZ-L C) both (a) and (b) D) neither (a) nor (b)

Last Answer : NRZ-L

Description : The type of transition curves generally provided on hill roads, is (A) Circular (B) Cubic parabola (C) Lemniscate (D) Spiral

Last Answer : Answer: Option D

Description : The shape of the Himalayas is like (a) A straight line (b) An arc (c) A zigzag line (d) A spiral

Last Answer : Ans: (b)

Description : Increase-strain curve of concrete is (a) A perfect straight line upto failure (b) Straight line up to 0.002% strain value and then parabolic upto failure (c) Nearly parabolic up to 0.002% strain ... line upto failure (d) Hyperbolic up to 0.002% strain value and then a straight line upto failure

Last Answer : (c) Nearly parabolic up to 0.002% strain value and the a straight line upto failure

Description : Adsorption of a gas on a surface follows Freundlich adsorption isotherm. Plot of `"log " (x)/(m)` versus log P gives a straight line with slope equal

Last Answer : Adsorption of a gas on a surface follows Freundlich adsorption isotherm. Plot of `"log " (x ... of pressure. D. Adsorption is independent of pressure.

Description : Parallel straight line pattern of temperature distribution for both hot and cold fluids is observed in case of heat exchanger of the type (A) Parallel flow with equal heat capacities (B) Counter ... (C) Counter flow with unequal heat capacities (D) Parallel flow with unequal heat capacities

Last Answer : (B) Counter flow with equal heat capacities

Description : In which instruction are used to perform Boolean operation on non-numerical data: a. Logical and bit manipulation b. Shift manipulation c. Circular manipulation d. None of these

Last Answer : a. Logical and bit manipulation

Description : When a cylindrical vessel containing liquid is resolved, the surface of the liquid takes the shape of (A) A triangle (B) A paraboloid (C) An ellipse (D) None of these

Last Answer : Answer: Option B

Description : The plasticity index is the numerical difference between (A) Liquid limit and plastic limit (B) Plastic limit and shrinkage limit (C) Liquid limit and shrinkage limit (D) None of these

Last Answer : (A) Liquid limit and plastic limit

Description : The numerical difference between the liquid limit and plastic limit of a soil is known as a) Liquidity index b) Plasticity index * c) Shrinkage index d) Consistency index

Last Answer : b) Plasticity index *

Description : Heat flux increases with temperature drop beyond the Leiden frost point in the plot of heat flux vs. temperature drop for a boiling liquid, because (A) Convection becomes important (B) Conduction becomes important (C) Radiation becomes important (D) Sub-cooled boiling occurs

Last Answer : (C) Radiation becomes important

Description : Ammonium nitrate (is mixed with limestone) is not used as fertiliser as such, because (A) It is hygroscopic and explosive in nature (B) It is highly acidic in nature (C) It is a liquid at room temperature (D) Its nitrogen content is very less

Last Answer : (A) It is hygroscopic and explosive in nature

Description : The bubble tube is nearly filled with (A) Alcohol or chloroform (B) A liquid which is very mobile (C) A liquid having low freezing point (D) All the above

Last Answer : (D) All the above

Description : When the difference in the temperature of the wet-bulb thermometer and dry-bulb thermometer is large, what does it indicate about the air? w) it is very dry x) it is nearly saturated y) it is very warm z) it is very cold

Last Answer : ANSWER: W -- IT IS VERY DRY

Description : Pickup the incorrect statement from the following:  (A) The invert of pressure conduit is independent of the grade of the hydraulic gradient line  (B) The pressure conduits may be taken uphill ... m  (C) Aqueducts and tunnels sections are generally kept circular  (D) None of these 

Last Answer : (D) None of these 

Description : The radius of curvature of the arc of the bubble tube is generally kept (A) 10 m (B) 25 m (C) 50 m (D) 100 m

Last Answer : (D) 100 m

Description : pH is defined as the negative logarithm of the hydrogen ion concentration. Comparing a pH 5 and a pH 8 solution, which of the following is true? w) There are 1,000 times more hydrogen ions in ... . z) Cannot tell the difference between these two solutions by pH, since the numbers are so close.

Last Answer : ANSWER: X -- THERE ARE 1,000 TIMES MORE HYDROGEN IONS IN THE PH 5 SOLUTION