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The following characteristic curves (P, Q, R, S) pertain to rotary drilling in rock.
Mining Machinery mcq question image
Title of the curve
I : Torque versus RPM
II: Rate of penetration versus uniaxial compressive strength of rock
III : Rate of penetration versus weight on bit
IV : Specific energy versus weight on bit
Match the curves with their titles
The line graph L(G) of a simple graph G is defined as follows: There is exactly one vertex v(e) in L(G) for each edge e in G. For any two edges e and e' in G, L(G) has an edge between v(e) and v(e'), if and only if e and e' are incident with the same vertex in G. Which of the following statements is/are TRUE? (P) The line graph of a cycle is a cycle. (Q) The line graph of a clique is a clique. (R) The line graph of a planar graph is planar. (S) The line graph of a tree is a tree.
Which concentration plot is linear for a first order reaction? (A is one of the reactant) versus time b) 2 versus time c) Ln versus time d) √ versus time
The following figure represents the velocity-time graph of a moving car on a road.
Law of Motion mcq question image
Which segment of the graph represents the retardation?
Consider the four statements given below about the function f(x) = x4 - x2 in the range $$ - \infty P. The plot of f(x) versus x has two maxima and two minima.
Q. The plot of f(x) versus x cuts the x axis at four points.
R. The plot of f(x) versus x has three extrema.
S. No part of the plot f(x) versus x lies in the fourth quadrant.
Pick the right combination of correct choices from those given below.
Consider the following velocity and time graph.
Law of Motion mcq question image
Which one of the following is the value of average acceleration from 8 s' to 12 s?
The translatory motion of an object moving on a smooth surface is represented by following distance - time Graph. What can be inferred from the graph? I. No force is required to keep the object in motion. II. The speed-time graph of the object is a straight line parallel to the time axis. III. The acceleration of the object is zero.
A word is represented by only a set of numbers as given in any one of the alternatives. The sets of numbers given in the alternatives are represented by two classes of alphabets as shown in the given two matrices. The columns and rows of Matrix-I are numbered alternatively and represented by two classes of alphabets as shown in the given two matrices. The columns and rows of Matrix-I are numbered from 0 to 4 and that of Matrix-II are numbered from 5 to 9. A letter from these matrices can be represented first by its row and next by its column, for example, ‘C’ can be represented by 42, 56 etc and ‘P’ can be represented by 03, 65 etc. Similarly, you have to identify the set for the word ‘THRONE’.  Matrix I    Matrix II   0 1 2 3 4   5 6 7 8 9 0 H D U P F 5 J C N R G 1 O S K X I 6 P V T X L 2 R E W A Z 7 E Y W A O 3 B T Q Y N 8 K H Q U I 4 J L C V G 9 B S F M D
In a certain number system there are only two notations to represent numbers: @ and %. 0 is represented by @ and 1 by %. The subsequent numbers are represented in the following manner: 2 is represented as %@, 3 is represented as %%, 4 is represented as %@@, 5 is represented as %@% and so on. Based on this coded language, answer the following questions: What number is represented by %%@%@%%?
Shear stress versus shear rate behavior of four different types of fluids (I, II, III and IV) are shown in the figure below.
Basic Principles of Biotechnology mcq question image
Which one of the following options is correct?