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

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

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

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

Modulus of 15 i + 20 is:

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

• 
  A
• 
  B
• 
  C
• 
  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

If z = x + i y = r (cos Θ + i sin Θ), then arg z is:

• tan Θ A
• cos²Θ + sin²Θ B
• r C
• Θ D

Division of a natural number by another natural number gives:

• always a natural number A
• always an integer B
• always a rationalnumber C
• always an irrational number D

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

π, e are:

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

Zero is:

• a natural number A
• a whole number B
• a positive integer C
• a negativeinteger D

Product of a complex number and its conjugate is:

• a real number A
• irrationalnumber B
• a complexnumber C
• either real number or complexnumber D

Rational numbers are:

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

• Additive property A
• Multiplicativeproperty B
• Reflexiveproperty C
• Transitive property D

• closureproperty A
• associativeproperty B
• commutativeproperty C
• trichotomyproperty D

• additive property A
• multiplicative inverseproperty B
• transitive property C
• negative property D

The multiplicative invers of a non-zero real number a is:

• 0 A
• -a B
• a C
• 
  D

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

The multiplicative identity of real numbers is:

• 0 A
• 1 B
• 2 C
• -1 D