7,213 questions & answers

Look at the following table below.

Class Interval

Class Marks

0 - 5

A

5 - 10

B

10 - 15

12.5

15 - 20

17.5

The value of $A & B$ respectively are:

(A) $2.5, 7.5$
B) $3, 7$
C) $2, 7$
(D) $3, 8$

Galvanized iron pipes are made by "hot dipping":

  • Zinc in molten iron
  • Iron in molten nickel
  • Iron in molten zinc
  • Iron in molten magnesium

If alpha and beta are zeros of p(x) = x² + x - 1, then find alpha² beta + alpha beta².

What part of the blood carries minerals, sugar, and other foods to the body's cells?

Option 1: diabetes insipidus Option 2: diabetes mellitus Option 3: hypoglycemia Option 4: Both a and b

Which of the following are placeholders for literal values in a SQL query being sent to the database:

  • Reduction and resolution variables
  • Resolution variables
  • Reduction variables
  • Assimilation variables
  • Bind variables

$\sqrt{\frac{3}{49}}$ is an irrational number. True
False

Which of the following factors influence the rate of a chemical reaction?

  • Surface area of reactants
  • Temperature
  • Catalyst
  • Concentration of reactants

The numbers which have a non-terminating and non-repeating decimal expansion and cannot be represented in the form of $\frac{p}{q}$ (where $q$ is not equal to 0) are known as irrational numbers.

Connective tissue found in vitreous humour of eye and umbilical cord of newborn babies:

  • Areolar tissue

  • Adipose tissue

  • Mucous tissue

  • Elastic tissue

Water falls from a height of $60$ m at the rate of $15$ kg/s to operate a turbine. The losses due to frictional forces are $10%$ of the energy. How much power is generated by the turbine? (Take $g=10$ m/s$^{2}$)

A $12.3$ kW
B $7.0$ kW
C $8.1$ kW
D $10.2$ kW

What does it mean to have diagonals bisect each other?

  • That goes across each other

  • The point where diagonals meet is the midpoint

  • The angles are congruent

  • The full diagonal line is congruent to the other diagonal line

The maximum volume of air that can be released from the lungs by forceful expiration after deepest inspiration is called the ______.

  • Total lung capacity

  • Vital capacity

  • Tidal volume

  • Ventilation rate

Find the equation of the lines joining the origin to the points of intersection of the straight line $y=3x+2$ with the curve $x^{2}+2xy+3y^{2}+4x+8y-11=0.

A. $7x^{2}-2xy+y^{2}=0 B. $7x^{2}-2xy-y^{2}=0 C. $7x^{2}+2xy+y^{2}=0 D. $7x^{2}+2xy+y^{2}=0

While swimming, the weight of the body is supported by the water pressure.

A horizontal force of 10 N is necessary to just hold a block stationary against a wall. The coefficient of friction between the block and the wall is 0.2. The weight of the block is:

(A) 2 N (B) 20 N (C) 50 N (D) 100 N

Which of the following can be evidence for evolution?

  • Paleontological
  • Morphological and anatomical
  • Biogeographic distribution
  • Physiological

For an event, odds against are $6:5$. The probability that the event does not occur is:

A) $\frac{5}{6}$
B) $\frac{6}{11}$
C) $\frac{5}{11}$
D) $\frac{1}{6}

Which of the molecules listed below have an $sp^{3}$ hybridized central atom? (P) PCl3 (Q) COCl2 (R) SF4 A P only B P and R only C Q and R only D P, Q and R

How many glycinate ions are required to make an octahedral complex with a $\mathrm{Ca}^{2+}$ ion?

A. One B. Two C. Six D. Three

Statement 1: Bile pigment is formed in the liver by the breakdown of haemoglobin in dead RBCs.
Statement 2: Vitamins are not excreted along with urine.

  • Phenylalanine

  • Tyrosine

  • Valine replacing glutamine

  • Homogentisic acid