Tuesday 24 July 2018

DRAUGHTSMAN CIVIL WORKSHOP CALCULATION & SCIENCE- IV Semester



MODEL EXAM

DRAUGHTSMAN CIVIL

WORKSHOP CALCULATION & SCIENCE- 

Semester IV

1. Centre of area of plane geometrical figure is termed as……………..
(a) centre       (b)centre of gravity       (c) centroid      (d) all of these
 2.     The C.G.  of any triangle is at a point of height of triangle  from the base of triangle
(a)1/3 of height     (b)2/3 of height  (c)1/4 of height   (d) none of these
3.    Area of semicircle having radius r is given by……………
 (a)                      (b)                           (c)                         (d)
4.     Unit of heat is ……………………
(a)joule            (b)calorie         (c)degree  (d)Fahrenheit
5.  Area of a sector of a circle whose radius is 14cm and the length of the arc of the sector is 28cm is
(a) 0.1194cm         (b)3.422cm        (c)124.727cm        (d)1.711cm
6. The ratio of the limiting force of friction (F) to the normal reaction (R) is known as
(a)Coefficient of friction         b)Force of friction       (c)Angle of friction      (d)None of the above

7. The imaginary line joining  the two poles of a magnet  is called …………….
(a)Magnetic neutral axis       (b)magnetic axis    (c)magnetic line of forces   (d)none of these
8. If cosɵ=4/5 then cotɵ is equal to ………………………
(a)4/3                     (b)3/4               (c)4/5       (d)3/5
9. Copper is good ……………. of electricity
(a) insulator        (b)resistor       (c)conductor        (d)none of these
10………..are commonly used to control speed or to change the direction
(a) belt wheel       (b) gear wheel      (c) drive gear     (d)  belt drive
11. In a simple machine the velocity ratio is found to be 20.  An effort of 20kg required to lift the load of 400kg. The efficiency of machine is ………….
(a) 100                 (b) 80                   (c) 40               (d) 20
12. The force exerted per unit area of a substance is called …………
(a) density            (b) pressure           (c) stress            (d) strain
13. The atmospheric pressure on the gauge scaled is marked as ………….
(a) 20                  (b) 10             (c) 0           (d)-20
14……………… is the form of an energy
(a) Temperature       (b)  electricity                (c) gas           (d) heat
15.The process by which hear is transmitted from one point to another  through the direction  fall of temperature is called ………….
(a) transmission             (b)conduction     (c) convection     (d)radiation
16.Heat is transmitted from  one place to another  without the aid of material medium is called ……………….
(a) transmission             (b)conduction     (c) convection     (d)radiation
17.The flow of electrons  in any conductor is called ……………….
(a)resistance     (b) ampere      (c)volt                 (d)current
18.The  force which  causes  to flow  the free electrons in any closed circuit  due to difference in electrical potential is called …………..
(a)electro motive force     (b) potential difference     (c)electricity     (d) none of these
19.The lines of magnetic force  that emerge  from the north pole of a magnet  is known as …………
(a)magnetic strength     (b) magnetic south    (c)magnetic flux density     (d)magnetic flux
20.The maximum value of frictional force  before the body just slides over the surface of another body is called ………….
(a)rolling friction     (b) limiting friction     (c)force of friction    (d) sliding frictiom


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