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Science Trivia

Total questions: 159

Worksheet time: 2hrs 33mins

Name
Class
Date
1.

Before burning in air, the magnesium ribbon is cleaned by rubbing with a sand paper to:

a)

Make the ribbon surface shinier

b)

Remove the layer of magnesium oxide from the ribbon surface

c)

Remove the layer of magnesium carbonate from the ribbon surface

d)

Remove the moisture from the ribbon surface

2.

In a chemical reaction between sulphuric acid and barium chloride solution the white precipitates formed are of:

a)

Hydrochloric acid

b)

Barium sulphate

c)

Chlorine

d)

Sulphur

3.

The respiration process during which glucose undergoes slow combustion by combining with oxygen in the cells of our body to produce energy, is a kind of:

a)

Exothermic process

b)

Endothermic process

c)

Reversible process

d)

Physical process

4.

A chemical reaction does not involve:

a)

Formation of new substances having entirely different properties than that of the reactants

b)

Breaking of old chemical bonds and formation of new chemical bonds

c)

Rearrangement of the atoms of reactants to form new products

d)

Changing of the atoms of on element into those of another element to form new products

5.

One of the following processes does not involve a chemical reaction. That is:

a)

Melting of candle wax when heated

b)

Burning of candle wax when heated

c)

Digestion of food in our stomach

d)

Ripening of banana

6.

It is necessary to balance a chemical equation in order to satisfy the law of:

a)

Conservation of motion

b)

Conservation of momentum

c)

Conservation of energy

d)

Conservation of mass

7.

All the methods mentioned below can be used to prevent the food from getting rancid except:

i. Storing the food in the air-tight containers

ii. Storing the food in refrigerator

iii. Keeping the food in clean and covered containers

iv. Always touching the food with clean hands

a)

(i) and (ii)

b)

(i) and (iii)

c)

(i), (iii) and (iv)

d)

(iii) and (iv)

8.

Rusting of iron involves a chemical reaction which is a combination of:

a)

Reduction as well as combination reactions

b)

Oxidation as well as combination reactions

c)

Reduction as well as displacement reactions

d)

Oxidation as well as displacement reactions

9.

The given chemical reaction represents:

a)

Combination reaction as well as double displacement reaction

b)

Redox reaction as well as displacement reaction

c)

Double displacement reaction as well as redox reaction

d)

Decomposition reaction as well as displacement reaction

10.

When ferrous sulphate is heated strongly it undergoes decomposition to form ferric oxide as a main product accompanied by a change in colour from:

a)

Blue to green

b)

Green to blue

c)

Green to brown

d)

Green to yellow

11.

Which of the following gases is used in the storage of fat and oil containing foods for a long time?

a)

Carbondioxide gas

b)

Nitrogen gas

c)

Oxygen gas

d)

Neon gas

12.

The given diagram of experimental set-up is used to carry out:

a)

Distillation of water

b)

Purification of water

c)

Electrolysis of water

d)

Hydrolysis

13.

The displacement reaction between iron (III) oxide and a metal X is used for welding the rail tracks. Here X is:

a)

Copper granules

b)

Magnesium ribbon

c)

Sodium pellets

d)

Aluminium dust

14.

The displacement reaction between iron (III) oxide and a metal X is used for welding the rail tracks. Here X is:

a)

Copper granules

b)

Magnesium ribbon

c)

Sodium pellets

d)

Aluminium dust

15.

The neutralization reaction between an acid and a base is a type of:

a)

Double displacement reaction

b)

Displacement reaction

c)

Addition reaction

d)

Decomposition reaction

16.

The chemical reaction between Hydrogen sulphide and iodine to give Hydrogen iodide and sulphur is given. The reducing and oxidizing agents involved in this redox reaction are:

a)

Iodine and sulphur respectively

b)

Iodine and hydrogen sulphide respectively

c)

Sulphur and iodine respectively

d)

Hydrogen sulphide and sulphur

17.

Which of the following does not corrode when exposed to the atmosphere-

a)

Iron

b)

Copper

c)

Gold

d)

Silver

18.

Rusting of an iron is an example of

a)

Reduction

b)

Ionization

c)

Oxidation

d)

Dissociation

19.

Combination of phosphorus and oxygen is an example of:

a)

Oxidation

b)

Reduction

c)

Rancidity

d)

None of these

20.

The reaction in which two compounds exchange their ions to form two new compounds is

a)

A displacement reaction

b)

A decomposition reaction

c)

An isomerization reaction

d)

A double displacement reaction

21.

A substance which oxidized itself and reduces other is known as :

a)

Oxidizing agent

b)

Reducing agent

c)

Both of these

d)

None of these

22.
what happens when a solution of  an acid is mixed with a solution of a base in a test tube?a
a)
temperature of the solution increases 
b)
temperature of the solution decreases
c)
temperature remains constant
d)
no reaction
23.
an aqueous soln turns red lithmus blue . excess addition of which of the following would reverse the change
a)
baking powder
b)
lime
c)
ammonium hydroxide solution
d)
HCL
24.
calcium phosphate is present in tooth enamel its nature is
a)
basic
b)
acidic 
c)
neutral
d)
amphoteric
25.
a sample of soil is mixed with water and allow to settle . The soln turns yellowish orange which of the foll soln will turn the colour to greenish blue 
a)
lemon juice
b)
vinegar
c)
common salt
d)
antacid
26.
If a few drops of concentrated acid accidentally spills over the hand of a student,what should be done
a)
wash the hand with saline solution
b)
wash the hand immediately with plenty of water and apply a soln of sodium hydrogen carbonate
c)
after washing apply soln of sodium hydroxide
d)
neutralise the acid wih a strong alkali
27.
common salt besides being used in kitchen can also be used as the raw material for making
a)
washing soda
b)
calcium salts
c)
plaster of paris
d)
slaked lime
28.
sodium hydrogen carbonate when added to acetic acid evolves  a gas .which of the statement is true about the gas evolved
a)
it turns lime water milky
b)
it burns with a pop sound
c)
it changes the soln colorless
d)
it has a pungent smell
29.
To protect tooth decay we are advised to brush our teeth regurlarly.The toothpaste is
a)
acidic
b)
neutral
c)
basic
d)
corrosive
30.
which of the foll phenomena occur when a small amunt of acid is added to water
a)
ionisation
b)
neutralisation
c)
dilution
d)
formation
31.
which of the foll substances will not give carbon dioxide on treatment with dilute acid
a)
marble
b)
limestone
c)
baking soda
d)
lime
32.
Which of the foll statement is not correct and CO2
a)
all metal carbonates react with acid to give a salt,water and CO2
b)
all metal oxides react with water to give salt and acid
c)
some metals react with acids to give salt and H2
d)
some non metal oxides react with water to form an acid
33.

HCl is found in household products, including some toilet bowl cleaners. Is HCl an acid or a base?

a)

Acid

b)

Base

c)

Neither (Neutral)

34.

True or false: a neutral solution has equal amounts of H+ and OH-.

a)

True

b)

False

35.

Is pure water acidic, basic, or neutral?

a)

Acidic

b)

Basic

c)

Neutral

36.

A substance is found to have the following characteristics:


Very bitter taste

Feels soapy to the touch

Produces OH- ions when dissolved in water


In what category would the substance be classified?

a)

acid

b)

base

37.

Acids are substances that release H+ ions when dissolved in water.

a)

True

b)

False

38.

Alkalis are substances that produce OH- ion when dissolved in water.

a)

True

b)

False

39.

Type of element is a semiconductor

a)

metal

b)

nonmetal

c)

metalloid

40.
Which of the given choices correctly shows the three main groups of elements listed from least conductivity to greatest conductivity?
a)
Metals, Nonmetals, Metalloids
b)
Nonmetals, Metalloids, Metals
c)
Metalloids, Metals, Nonmetals
d)
Nonmetals, Metals, Metalloids 
41.
Aluminum can be hammered into different shapes or rolled into flat sheets. This means Aluminum is 
a)
ductile
b)
malleable
c)
lustrous
d)
high density
42.

This type of element loses its valence electrons easily.

a)

metal

b)

nonmetal

c)

metalloid

43.
If a substance breaks easily, it is said to be ________________.
a)
A. Magnetic
b)
B. Brittle
c)
C. Conductive
d)
D. Ductile
44.
If a material can easily be drawn into the shape of a wire, it is
a)
Ductile
b)
Magnetic
c)
Malleable
d)
Reactive
45.
At room temperature metals are ____________.
a)
plasma
b)
gases
c)
liquid
d)
solid
46.
Fluorine is used in many tooth pastes because it helps maintain healthy teeth.  At room temperature it is gaseous, and does not conduct electricity. Based off these properties, it would be classified as?
a)
A metal
b)
A non metal
c)
A metalloid
47.

Argon is a ____________ at room temperature.

a)

Gas

b)

Liquid

c)

Solid

48.

Which metal is the poor conductor of heat.

a)

Silver

b)

Potassium

c)

Mercury

d)

Iron

49.

Metals & Nonmetals elements form

a)

Ionic compound

b)

Covalent compound

c)

both a & b

50.

Which of the following represent the correct order of decreasing reactivity?

a)

Mg > Al > Zn > Fe

b)

Mg > Zn > Al > Fe

c)

Al > Zn > Fe > Mg

d)

Mg > Fe > Zn > Al

51.

An element X is soft and can be cut with the help of a knife. It is very reactive to air and cannot be kept open in the air. It reacts vigorously with water. Identify the element from the following

a)

Mg

b)

Na

c)

Al

d)

Au

52.

Which of tire following are not ionic compounds?

(i) KCl

(ii) HCl

(iii) CCl4

(iv) NaCl

a)

(a) (i) and (ii)

b)

(b) (ii) and (iii)

c)

(c) (iii) and (iv)

d)

(d) (i) and (iii)

53.

The electronic configuration of three elements X, Y and Z are as follows:

X = 2, 4, Y = 2, 7, Z = 2,1 Which two elements will combine to form an ionic compound and write the correct formula,

a)

(a) X2Y

b)

(b) YZ

c)

(c) XZ3

d)

(d) Y2Z

54.

Example of an amphoteric oxide is:

a)

(a) Na2O

b)

(b) K2O

c)

(C) Al2O3

d)

(d) MgO

55.

Which one of the following metals do not react with cold as well as hot water?

a)

Na

b)

Ca

c)

Mg

d)

Fe

56.

What happens when calcium is treated with water?

(i) It does not react with water

(ii) It reacts violently with water

(iii) It reacts less violently with water

(iv) Bubbles of hydrogen gas formed stick to the surface of calcium

a)

(a) (i) and (iv)

b)

(b) (ii) and (iii)

c)

(c) (i) and (ii)

d)

(d) (iii) and (iv)

57.

Two statement are made

Statement A: Conductivity of a metal is due to presence of free electrons

Statement B: Metals conducts heat

a)

(a) Statement A is correct only

b)

(b) Statement B is correct only

c)

(c) Statement A and B both are correct

d)

(d) Statement A and B both are incorrect

58.

Which metal can be displaced by copper from its salt solution?

a)

(a)Sodium

b)

(b) Zinc

c)

(c) Iron

d)

(d) Silver

59.

In general, the number of electrons in the outermost shell of a metal atom is

a)

(a) 1

b)

(b) 1 to 3

c)

(c) 5 to 8

d)

(d) 8

60.

A chemical equation is said to be balanced if number of

a)

(i) Compounds are same in both side

b)

(ii) Molecules are same in both side

c)

(iii) Number of atoms is same in both side

d)

(iv) Number of electrons are same in both side

61.
Advantage of dimension is
a)
To set up relation between physical quantities
b)
To convert quantity in one standard into other.
c)
To prove various laws or rules.
d)
All of the above
62.
Dimension of pressure is
a)
[M L T-1]
b)
[ML-1 T-2]
c)
[M0L3 T0]
d)
[M L2 T-2]
63.
Dimension of surface tension is a
a)
[M L T-1]
b)
[ML-1 T-2]
c)
[M0L3 T0]
d)
[ML0 T -2]
64.
Dimension of work is
a)
[M L T-1]
b)
[ML-1 T-2]
c)
[M0L3 T0]
d)
[M L2 T-2]
65.
Following is not having any unit
a)
energy
b)
voltage
c)
efficiency
d)
force
66.
The following is not a metric system
a)
CGS
b)
SI
c)
MKS
d)
FPS
67.
The prefix for nano is
a)
2022-10-03 00:00:00
b)
2022-10-09 00:00:00
c)
2022-10-12 00:00:00
d)
2022-10-06 00:00:00
68.
The SI unit of current is
a)
joule
b)
erg
c)
ampere
d)
volts
69.
The SI unit of temperature is
a)
Fahrenheit
b)
Centigrade
c)
Kelvin
d)
Franklin
70.
The SI unit of velocity is
a)
ms-1
b)
ms-2
c)
ms-3
d)
ms-4
71.
The following of which is not a vector quantity
a)
force
b)
work
c)
velocity
d)
momentum
72.
The SI unit of momentum is a.
a)
kg N ms-1
b)
gram
c)
kg ms-1
d)
Nm
73.
The unit of torque is
a)
Nm
b)
Nm/s
c)
mN
d)
N
74.
The unit of atmospheric pressure is
a)
bar
b)
torr
c)
pa
d)
all the above
75.
Nm is the unit for
a)
Pressure
b)
Torque
c)
Power
d)
Energy
76.
The prefix for micro is
a)
2022-10-03 00:00:00
b)
2022-10-09 00:00:00
c)
2022-10-12 00:00:00
d)
2022-10-06 00:00:00
77.
The prefix for milli is
a)
2022-10-03 00:00:00
b)
2022-10-09 00:00:00
c)
2022-10-12 00:00:00
d)
2022-10-06 00:00:00
78.
The prefix for Pico is
a)
2022-10-03 00:00:00
b)
2022-10-09 00:00:00
c)
2022-10-12 00:00:00
d)
2022-10-06 00:00:00
79.
1 Kg = g.
a)
10
b)
100
c)
1000
d)
10000
80.
1 g = Kg.
a)
0.1
b)
0.01
c)
0.001
d)
0.0001
81.
The SI unit of Luminous intensity is
a)
Kelvin
b)
Meter
c)
Ampere
d)
Candela
82.
The SI unit of Quantity of matter is
a)
Kelvin
b)
Mole
c)
Ampere
d)
Candela
83.
The prefix for Mega is
a)
102
b)
103
c)
106
d)
109
84.
The prefix for centi is
a)
2022-10-02 00:00:00
b)
2022-10-09 00:00:00
c)
2022-10-12 00:00:00
d)
2022-10-06 00:00:00
85.
Dynamics is a study of
a)
motion of
b)
position of
c)
All the above
d)
none
86.
Unit of Velocity is
a)
m.s
b)
m/s/s
c)
m/s
d)
mm.s
87.
The rate of change of velocity is called
a)
work
b)
acceleration
c)
momentum
d)
moment
88.
The object remains in the state of rest or motion
a)
inertia
b)
amnesia
c)
energy
d)
impulse
89.
The equation for momentum is
a)
m x v
b)
m x a
c)
m x t
d)
v x t
90.
A force of 50 Newton is applied on a block of 4 kg.
a)
12.5
b)
20.6
c)
15.5
d)
10.5
91.
One Newton is equal to
a)
5 Pascal
b)
105dynes
c)
100 dynes
d)
107 dynes
92.
1 gm wt is equal to
a)
980 dynes
b)
1000 dynes
c)
100 kilograms
d)
20 joules
93.
By using dimension
a)
Relation can be set up between physical quantities.
b)
Conversion of quantity in one standard into other can be done.
c)
Various laws or rules can be proved.
d)
All of the above.
94.
The dimension of angular acceleration is
a)
[M 2 L o T -3]
b)
[M 0 L 1T -2]
c)
[M 0 L 0T -2]
d)
[M o L o T -1]
95.
1 kg.wt is equal to
a)
9.5 N
b)
9.8 N
c)
3.6 N
d)
9 N
96.
The dimension of specific heat capacity is
a)
M0 L2 T-2 K-1
b)
M0 L1 T-2 K-
c)
M1 L2 T-2 K-1
d)
M0 L1 T-2
97.
The equation for angular velocity is
a)
w = q/t
b)
w = r x v
c)
a = v/t
d)
v = a/w
98.
The elongated spring possesses
a)
kinetic energy
b)
potential
c)
hydraulic
d)
magnetic
99.
The equation for kinetic energy
a)
½ mv2
b)
1/4 mv2
c)
1/8 av2
d)
1/4 ma2
100.
The equation for potential energy is
a)
mag
b)
mgh
c)
gha
d)
yma
101.
The angular velocity for n revolutions is
a)
pN/30 radians/second
b)
pN/30
c)
N/30
d)
p/30
102.
According to which law the rate of change of
a)
Newton’s 2nd
b)
Newton’s
c)
Newton’s 3rd
d)
Newton’s law
103.
Momentum is proportional to force applied on it?
a)
3rd law
b)
1st law
c)
2 nd law
d)
of conservation
104.
The gravitational acceleration
a)
9.81 m/s
b)
9.81 m/s2
c)
9.81 kg/s
d)
5.8 m/s2
105.
The equation for work is
a)
F x S
b)
M x a
c)
V x S
d)
S/t
106.
The unit of work in SI is
a)
Nm
b)
Pa
c)
watt
d)
BHP
107.
The unit of power is
a)
J/s
b)
Nm
c)
ergs
d)
jewels
108.
The power of 1HP is equal to
a)
560 W
b)
30 calories
c)
170 Nm
d)
746 W
109.
The dimension of energy is
a)
[M1L2 T-2]
b)
[ML2 T]
c)
[M1L T-2]
d)
[M1L2 T]
110.
A body of mass 1 kg starts falling under gravity from a height of 10 m. The potential energy is
a)
9.8 joules
b)
170 ergs
c)
98 joules
d)
78 ergs
111.
Composition is a method of finding the
a)
direction
b)
equilibrium
c)
resultant
d)
Magnitude
112.
For applying parallelogram law, the forces have to be
a)
non collinear
b)
concurrent
c)
non concurrent
d)
non coplanar
113.
The resultant of the two forces 8N and 6N acting at an angle of 600 is
a)
8N
b)
12.16N
c)
90N
114.
Resolution is a process of
a)
finding components of a resultant force
b)
dividing diagonal into half
c)
adding all forces
d)
adding all sides
115.
The equation for component of resultant force F in
a)
F cos
b)
F sin
c)
V cos
d)
M cos
116.
The equation for component of resultant force F in
a)
F tan
b)
F cos
c)
F sin
d)
F cot
117.
The following is not a vector quantity
a)
force
b)
work
c)
displacement
d)
Velocity
118.
The forces on a rope during tug of war represent
a)
concurrent forces
b)
collinear forces
c)
coplanar forces
d)
non co planar forces
119.
The forces on a rod resting against a wall represent
a)
coplanar concurrent forces
b)
inductive
c)
magnetic
d)
Collinear
120.
The weight of benches in a class room represents
a)
coplanar forces
b)
non coplanar parallel
c)
non concurrent forces
d)
collinear forces
121.
The force opposite to resultant is called as
a)
equivalent
b)
equilibrant
c)
composition
d)
Resolution
122.
The following is an analytical method of finding resultant
a)
Triangle law
b)
Parallelogr am law
c)
Lami’s
d)
Varignon’s
123.
When the two concurrent forces P and Q are forming two sides of a rectangle, then the resultant force is
a)
(P + Q)
b)
(P + Q)2
c)
(P – Q)
d)
(P - Q)2
124.
Resultant is a
a)
common force
b)
single force that produces same effect as many
c)
single force that has double the effect of other forces
d)
strong force of many non concurrent forces
125.
The following is a vector quantity
a)
Displacement
b)
Speed
c)
Work
d)
Time
126.
The resultant of all forces acting on a body in equilibrium is
a)
zero
b)
one
c)
maximum
d)
equal to one force
127.
The single force that cancels total effect of a
a)
Equilibrium
b)
Equilibrant
c)
Resultant
d)
Result
128.
For equilibrium following statement is true.
a)
The algebraic sum of moments of forces about any point in their plane has to be zero.
b)
The algebraic sum of moments of forces about any point in their plane has to be infinity
c)
Forces have to be non coplanar
d)
Forces have to be non collinear
129.
Two forces each of magnitude 10 N making an
a)
10 N
b)
100 N
c)
5 N
d)
14 N
130.
The resultant of two forces acting on a body
a)
they are equal
b)
they are
c)
they are not
d)
they are in
131.
Lami’s theorem can be applied only when forces
a)
concurrent
b)
concurrent and equilibrium
c)
non concurrent
d)
non collinear
132.
Vectors in space are called as
a)
2 dimensional vectors
b)
3
c)
concurrent vectors
d)
coplanar vectors
133.
The resultant of the two forces 9N and 10N acting
a)
8N
b)
14.66N
c)
16.46N
134.
The process of inverse of composition of forces is
a)
Resolution of forces
b)
Equilibrium of forces
c)
Resultant force
d)
None of these
135.
The single force, which sets in the opposite
a)
Resolution of forces
b)
Equilibrium of forces
c)
Resultant force
d)
None of these
136.
The single force, which produces the same effect
a)
Resolution of
b)
Equilibrium
c)
Resultant
d)
None of these
137.
The following is not a vector quantity
a)
force
b)
mass
c)
displacement
d)
velocity
138.
The following is not a vector quantity
a)
force
b)
velocity
c)
displacement
d)
time
139.
Two forces of 10 N and 15 N act simultaneously at a point. Find the resultant force, if the angle between the two forces be 30°
a)
14.17N
b)
24.17 N
c)
42.17N
d)
41.17N
140.
A push of 18 N and pull of 35 N act simultaneously at a point. Find the resultant of two forces, if the angle between the two forces be 135°.
a)
10.4N
b)
19.4N
c)
49.4N
d)
25.7N
141.
Equilibrium of forces is
a)
single force which sets in the opposite direction to the resultant
b)
single force that produces same effect as many
c)
single force that has double the effect of other forces
d)
strong force of many non concurrent forces
142.
The Resultant formula in Parallelogram law of forces is
a)
R2 = P2 + Q2 +
b)
R2 = P2 + Q2
c)
R2 = P2 - Q2 -
d)
R2 = P2 - Q2 -
143.
If a number of forces acting upon keep the body in equilibrium, then
a)
Electric
b)
sum of the moment of all these forces from any point is equal to infinity
c)
Sum of moment centers is zero.
d)
Product of all moments is zero
144.
Two equal, unlike, parallel forces, on the same straight line, will constitute
a)
Electric
b)
an impulse
c)
a couple
d)
Product of all
145.
According to Lami’s theorem, if 3 forces acting at a
a)
Electric
b)
tangent of
c)
sine of angle
d)
other force
146.
The equation for moment of force F acting on a
a)
Electric
b)
F / l
c)
F + l
d)
F x l
147.
For rotatory equilibrium of a rigid body acted upon by a number of coplanar concurrent forces, the sum of all clockwise moments must be equal to
a)
Electric
b)
product of all clockwise moments about any point in the plane
c)
sum of all anti clockwise moments about any point in the plane of
d)
none of the above
148.
Peddling of a bicycle is an application of a
a)
Electric
b)
a moment producing translator effect.
c)
a force producing momentum.
d)
Lami’s
149.
A body of mass 5 kg is suspended by two strings attached to two points in the same horizontal line. When the body is in equilibrium the strings are found to make 30 degrees and 60 degrees with the vertical. The tensions in the strings are
a)
Electric
b)
24.5 kg and 42.4 kg
c)
zero
d)
30 N and 45 N
150.
The dimension of torque is
a)
ML2T-2
b)
MLT
c)
MLT-3
d)
M-1LT
151.
Two boys weighing 30 kg and 40 kg sit on either side of a see-saw at distances of 4m and 1.5 m from the fulcrum. Where must a third body weighing 45 kg sit to secure balance
a)
1.55 m
b)
1.44 m
c)
1.33 m
d)
1.66 m
152.
The moment of a couple is zero when
a)
The lines of action of two forces constituting the couple coincide.
b)
the lines of action of two forces constituting the couple intersect each other
c)
the lines of action of two forces constituting the couple are parallel
d)
the lines of action of two forces constituting the couple are non collinear
153.
Why wrenches are provided with long handles?
a)
to minimize applied force
b)
to make more
c)
to reduce tension
d)
to make moment zero
154.
The sign convention of moment of a force is
a)
Anticlockwise moments are taken negative and clockwise moments are positive
b)
Anticlock wise moments are taken positive and clockwise moments are
c)
clockwise moments are taken zero
d)
it has no sign at all
155.
Two like parallel forces of 80N and 100 N act vertically downwards at the ends of a light rod of
a)
170 N
b)
180N
c)
50 N
d)
100 N
156.
The forces, whose lines of action lie on the same plane is a
a)
Collinear forces
b)
Concurrent forces
c)
Coplanar forces
d)
None of these
157.
The forces, whose lines of action lie on the same line is
a)
Collinear forces
b)
Concurrent forces
c)
Coplanar forces
d)
None of these
158.
The forces, which meet at one point is
a)
Collinear forces
b)
Concurrent forces
c)
Coplanar forces
d)
None of these
159.
Coplanar forces are
a)
The forces, whose lines of action lie on the same line
b)
The forces, whose lines of action lie on the same plane
c)
The forces, which meet at one point
d)
None of these

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