Mechanics

 

exams.awkum.edu.pk

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11-14 minutes

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Question 1:

. if 

a.                                b.                         c .                           d. None

Question 2:

Two vectors are Parallel  iff their dot product are zero,

a.   True      b.   False 

Question 3:

 

(a).       (b).          (c).      (d) None of these

Question 4:

If  

a. 18  b. 81         c.     9          d   

Question 5:

Vector product is not distributive. 

(a). True       (b). False          

Question 6:

If two vectors are perpendicular then which of the following is true? 

a.       a . b = 0

b.        | a + b | = | a - b |

c.        The angle between vectors is 90°

d.        All of the above

Question 7:

a. 75      b. 57                 c. 19      d. 67  

Question 8:

If the angle between two vectors whose magnitudes are 14 and 7 is 60 degree ,their
scalar product will be....

a. 49    b.    89    c.    98    d. None

Question 9:

For three non zero vectors , if The scalar triple product is zero then the vectors are ……

a.         Positive

b.         Parallel

c.         Coplanar

d.         Perpendicular

Question 10:

If two vectors are perpendicular then which of the following is true? 

a.    a . b = 0

b.    | a + b | = | a - b |

c.     The angle between vectors is 90°

d.     All of the above

Question 11:

If  

a.   '    b. '     c. '    d. None

Question 12:

The resultant of the forces whose resolved parts are given as…

a.         b.              c.  Bothe a and b   d.    None

Question 13:

A vector whose initial position is at origin is

a. Free vector b. Position Vector  c. Unite Vector d. None

Question 14:

1.   is called…

(a). Vector      (b). Unite Vector         (c). Both a and b     (d) None of these

Question 15:

 

a. Parallel  vector b. Coplanar  c. Perpendicular  d. None

Question 17:

The derivative of a function is an operation  ?

a.       True   b. False  

Question 18:

.

(a). Orthonormal       (b). Orthogonal          (c). Parallel      (d) None of these

Question 19:

 

(a). 1      (b). 0         (c).      (d) None of these

Question 20:

For what value of   , the vector    and   are perpendicular?

1.  0           b.        1      c.  2           d.           3

Question 21:

For vectors a,b,c , the product of a . b × a = 

a.   2 a

b.   b

c.   0

d.   1

Question 22:

 If    

a. Parallel  vector b. Coplanar  c. Perpendicular  d. None

Question 23:

A vector whose initial position is at origin is

a. Free vector b. Position Vector  c. Unite Vector d. None

Question 24:

The derivative and integration are inverse of each other    ?

a.       True   b. False

Question 25:

. if   

a.             b.             c.               d. None

Question 26:

The gradient is a vector ………to the level surface

a. Equal  b. Parallel    c. Perpendicular    d. None

Question 27:

The value of    

a.         1

b.        0

c.        I

d.        j

Question 28:

Which of the following has magnitude one

a. Free vector b. Null Vector  c. Unite Vector d. Position Vector

Question 29:

 

(a).       (b).          (c).      (d) None of these

Question 30:

If   

a.    b.        c.        d.    None

Question 31:

(a). Orthonormal       (b). Orthogonal          (c). Parallel      (d) None of these

Question 32:

If    

a. Parallel  vector b. Coplanar  c. Perpendicular  d. None

Question 33:

(a).         (b).        (c).        (d) None of these

Question 34:

a.  b      b.     b  c.       (d) None of these

Question 35:

.    If   

a.         b.     0    c.       d. None

Question 36:

The scalar triple product a . b × c represents *

a.   Area of triangle

b.   Volume of parallelogram

c.    Volume of tetrahedron

d.    Volume of parallelpiped

Question 37:

If 

a.    b.     c. -  d. None

Question 38:

a

(a).        (b).            (c).        (d) None of these

Question 39:

Which of the following has magnitude one

a. Free vector b. Null Vector  c. Unite Vector d. Position Vector

Question 40:

The derivative of constant is always ………..

a.       1    b.     e       c. constant  d. Zero

Question 41:

 

a. Parallel  vector b. Coplanar  c. Perpendicular  d. None

Question 42:

The angle of inclination is defined  by ….

a.              b.          c        d.    

Question 43:

Forces whose line of action intersect at one point is called….  .

a. Resultant forces   b. Perpendicular forces      c    Concurrent forces    d.  None

Question 44:

If 

a.    b.   c.   d. None

Question 45:

  is called…

(a). Vector      (b). Unite Vector         (c). Both a and b     (d) None of these

Question 46:

a.  Undefined   b. 0    c.      

Question 47:

The scalar triple product a . b × c represents *

a.          Area of triangle

b.         Volume of parallelogram

c.           Volume of tetrahedron

d.          Volume of parallelpiped

Question 48:

The value of   

a.  1

b.  0

c.   I

d.   j

Question 49:

a.               b.            c.       d. None

Question 50:

The derivative and integration are inverse of each other    ?

a.       True   b. False   

Question 51:

a.            75      b.            57                 c.                 19      d.               67  

Question 52:

Two vectors are perpendicular iff their dot product are zero,

a.   True      b.   False 

Question 53:

A vector   is said to be irrational if…..

a.          b.         c. None

Question 54:

a. Laplacian  b. Gradient   c. Laplace equation  d. Both a and c

Question 55:

If  

a.  Undefined   b. 0    c.  None

Question 56:

For vectors a,b,c , the product of a . b × a = 

A.         2 a

B.         b

C.         0

D.          1

Question 57:

1

0

k

j

Question 58:

a.       b.       c.       (d) None of these

Question 59:

If 

a.         b.      c.         d. Undefined  

Question 60:

a. Laplacian  b. Gradient   c. Laplace equation  d. Both a and c