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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