First Year Mathematics Chapter 1 Online MCQ Test for 1st Year Mathematics Chapter 1 (Number Systems)

Multiplicative inverse of -i is:

• i A
• -i B
• 1 C
• -1 D

The identity element with respect to addition is:

• 0 A
• 1 B
• -1 C
• 0 and 1 D

• closure property w.r.t multiplication A
• commutativeproperty w.r.t multiplication B
• associativeproperty w.r.t multiplication C
• trichotomy property D

The ordered pairs (2, 5) and (5, 2) are:

• not equal A
• equal B
• disjoint C
• empty D

• a + c = b + d A
• a + b = c + d B
• a - b = c - d C
• None of these D

• 
  A
• x = 0, y = 0 B
• 
  C
• 
  D

π is defined as:

• ration of diameter of a circle to its circumference A
• ration of the circumference of a circle to its diameter B
• ration of area of a circle to its circumference C
• ration of the circumference of a circle to its area D

• integer A
• rational number B
• irrational number C
• natural number D

• Reflexive property A
• Symmetricproperty B
• Transitiveproperty C
• Trichotomyproperty D

• z is purely real A
• z is any complex number B
• z is purely imaginary C
• real part of z = imaginary part of z D

Every real number is also a/an:

• integer A
• rational number B
• irrationalnumber C
• complexnumber D

π, e are:

• integers A
• natural numbers B
• rationalnumbers C
• irrationalnumbers D

• 
  A
• archimedean property B
• transitive property C
• multiplicative property D

Conjugate of complex number (-a, -b) is:

• (-a, b) A
• (-a, -b) B
• (a, -b) C
• none of these D

• real numbers A
• complexnumbers B
• primenumbers C
• oddnumbers D

Rational numbers are:

• repeating decimals A
• terminatingdecimals B
• periodicdecimals C
• all of these D

The multiplicative identity of real numbers is:

• 0 A
• 1 B
• 2 C
• -1 D

Modulus of 15 i + 20 is:

• 20 A
• 15 B
• 25 C
• none of the above D

• rationalnumber A
• irrationalnumber B
• naturalnumber C
• wholenumber D

The imaginary part of the complex number a + bi is:

• a A
• b B
• bi C
• none of these D