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WorksheetsWSC Group 4 Level 1_1-25
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
Find the answer of the expression 25 * 1.5 + 2.5 / 18 upto 4 places of decimal.
a)
45.4253
b)
37.6388
c)
52.1245
d)
75.2563
2.
What will be the degree of freedom in the link mechanism shown in the given
figure?
a)
1
b)
2
c)
3
d)
4
3.
Find the original price of the goods, if the craftman sells goods for Rs 450 after
giving 25% discount?
a)
600
b)
650
c)
550
d)
500
4.
In the figure, which measuring quantity is used to measure the cable
a)
length
b)
mass
c)
time
d)
electric current
5.
Find the mass of an object, if the net force acting on object is 450N which
accelerates at 50 m/s2?
a)
6 kg
b)
9 kg
c)
4 kg
d)
7 kg
6.
In the free body diagram, two forces are shown. What will be the acceleration of
the ball, if the weight of the ball is 4kg?
a)
1.5 m/s2
b)
1.0 m/s2
c)
0.5 m/s2
d)
2.0 m/s2
7.
Find the gravitational force between the two objects m1 and m2 separated by
distance 30m having their masses 20kg and 30 kg respectively? Take G as G = 6.6726
x 10-11N-m2/kg2.
a)
4.4484 x 10-11N
b)
8.2453 x 10-10N
c)
3.5247 x 10-9N
d)
4.4542 x 10-13N
8.
In an inclined plane as shown, potential energy at top of building is 70 J. What
will be the potential energy at point A and B?
a)
35J
b)
70J
c)
0J
d)
100J
9.
In proportionally curve, which alphabet describes yield point?
a)
A
b)
B
c)
C
d)
None of these
10.
What will be the velocity ratio of wheel and axle having wheel diameter as 500
mm and axle diameter as 250mm.
a)
4
b)
2
c)
1
d)
5
11.
In the free body diagram, the direction of net force is:
a)
600N Left
b)
1200N Right
c)
600N Up
d)
600N Down
12.
What is the percentage of the fraction 85/25?
a)
4.5
b)
2.55
c)
3.4
d)
1.85
13.
Find the median of 3,4,7,9,10,2,38,23,38,23
a)
9
b)
9.5
c)
8
d)
8.5
14.
Find the matrix addition of 2x2 matrix where
a)
na
b)
na
c)
na
d)
None of these
15.
What will be the power delivered to the circuit, if current across 40 ohm resistor
is 2.5A?
a)
230W
b)
180W
c)
120W
d)
250W
16.
Choose correct statement.
a)
(a) 1 micron = 0.01 mm (B) SI unit of temperature is Kelvin
b)
(a) 1 micron = 0.001 mm (B) SI unit of temperature Celsius
c)
(a) 1 micron = 0.001 mm (B) SI unit of temperature is Kelvin
d)
(a) 1 micron = 0.0001 mm (B) SI unit of temperature is Kelvin
17.
The ratio of the speed of a body to the speed of sound in the surrounding
medium is called
a)
Reynold Number
b)
Mach Number
c)
Supersonic Number
d)
Hypersonic Number
18.
Error in measurement is defined as (Instrument reading - true reading). Parallax
error in reading on an analog scale comes under classification of
a)
Gross error
b)
Systematic error
c)
Random error
d)
None of these
19.
Anything that moves in a circular path must be acted on by a centripetal force
that is ..................... the object s path.
a)
In the same direction as
b)
In the opposite direction of
c)
Parallel to
d)
Perpendicular to
20.
The .................. is the point defining the geometric centre of an object.
a)
Centre of gravity
b)
Centre of mass
c)
Centroid
d)
None of these
21.
If a force of 35 N is required to move a mass of 45 kg on a flat surface at
constant velocity, calculate the coefficient of friction.
a)
0.77
b)
0.08
c)
0.39
d)
0.04
22.
Which list shows the substances in order of increasing density?
a)
Water, oxygen, kerosene, lead
b)
kerosene, water,Oxygen, lead
c)
Lead, water, kerosene, oxygen
d)
Oxygen, water, kerosene, lead
23.
In figure given below, coefficient of thermal expansion of material A is ............
a)
Smaller than that of material B
b)
Larger than that of material B
c)
Same as that of material B
d)
None of these
24.
Rotary compressors are used where ............. quantities of gas are needed at
........... pressure.
a)
Large; High
b)
Large; Low
c)
Small; High
d)
Small; Low
25.
The flow is turbulent flow, if Reynold Number is more than ................
a)
1000
b)
2000
c)
3000
d)
4000
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