NAT IIP Physical Science Mathematics Preparation Online Test for Pakistani Students

• 
  A
• 
  B
• 
  C
• 
  D

If x < y, 2x = A, and 2y =B, then

• A = B A
• A < B B
• A < x C
• B < y D

• 
  A
• 
  B
• 
  C
• 
  D

The multiplicative inverse of x such that x = 0 is

• -x A
• does not exist B
• 1/x C
• 0 D

• 0 A
• -25 B
• 5 C
• 45 D

Unit vector in the positive direction of x-axis is

• 
  A
• 
  B
• 
  C
• All D

• Nilpotent matrix A
• Singular matrix B
• Non singular matrix C
• Diagonal matrix D

• An equation A
• Linear equation B
• Rational fraction C
• Identity D

• 
  A
• 
  B
• 
  C
• 
  D

• 
  A
• 
  B
• 
  C
• None of these D

A vector of magnitude zero is called

• Position vector A
• Null vector B
• Free vector C
• None of these D

Which is an explicit function

• 
  A
• 
  B
• 
  C
• All D

6 is

• A prime integer A
• An irrational number B
• A rational number C
• An odd integer D

The direction cosines of y-axis are

• 1,0,0 A
• 0,1,0 B
• 0,0,1 C
• 1,1,1 D

The equation of the line with gradient 1 passing through the point (h, k) is

• Y = x + k - h A
• Y = k/h x + 1 B
• Y = x + h - k C
• Ky = hx - 1 D