PAPER – II COMMON FOR (FITTER, MACHINIST, MACHINIST-GRINDER) WORKSHOP CALCULATION AND SCIENCE SEMESTER - I REVISION TEST TIME: 3 HRS
MARKS: 75
Note: Attempt all the questions. All questions carry equal marks. This paper carries negative marking, 25% marks will be deducted for each wrong answer. Choose the correct answer.
1. 1mm = _____ micron a) 100
b) 10
c) 1000
d) 0.1
b) 105
c) 108
d) 102
2. Mega – prefix? a) 106
3. Which nonferrous metals, tensile strength can be increased by hammering or rolling? a) Lead
b) Copper
c) Tin
d) Zinc
4. Name the structure of carbon steel having 0% carbon and forms solid solution. a) Ferrite
b) Ferrite and Pearlite
c) Pearlite
d) Pearlite and Cementite
5. Name the nonferrous metal which is a good insulator against nuclear radiation. a) Lead
b) Copper
c) Silver
d) Zinc
6. Which property of a metal by which it can be extended in any direction by hammering, rolling etc. without causing rupture. a) Tenacity
7.
b) Elasticity
c) Fusibility
d) Malleability
b) 1.504
c) 2.401
d) 1.905
c) 711
d) 541
. . – . . ÷ . – .
a) 1.401
8. Find the square root of 3,63,609 a) 503
b) 603
9. Find the square root of a)
b)
c)
d)
10. Find out 13 % of 300
a) 60
b) 50
c) 40
d) 30
11. A man 15% of His income on agriculture, 21% on family and 24% on education of children. If he saves Rs.360/-, find out the total income.
a) Rs.500/-
b) Rs.400/-
c) Rs.800/-
d) Rs.900/-
12. Divide Rs. 2000 in the ratio 2 : 3 : 5 between A, B & C respectively. a) A = Rs.200, B = Rs.400, C = Rs.500
b) A = Rs.400, B = Rs.600, C = Rs.1000
c) A = Rs.300, B = Rs.800, C = Rs.900
d) A = Rs.500, B = Rs.600, C = Rs.700
13. 30 workers Can complete a work in 25 hours. Find the number of workers required to complete the work in 15 hours. a) 30
b) 40
c) 50
d) 60
14. By what name The ratio between the densities of the substance to density of water called? a) Pascal
b) Density
c) Specific gravity
d) None
c) 136 g/cc
d) None
15. Find the speci,ic (SG) of the mercury if: a) 1.36 g/cc
b) 13.6 g/cc
16. Calculate the mass of a metal if specific gravity (SG) = 2.5, volume = 1 litre a) 3.5 kg
b) 2.5 kg
c) 1.5 kg
d) 2 kg
c) N m
d) N2 m2
17. One Joule = 1 _______ a) N m2
b) Kg m S2
18. Energy is de,ined as: a) Rate of doing work
b) Capacity to do work
c) Power of doing work
d) None of the above
19. A force of 30 Newton Is applied at the end of a spanner whose effective length is 19.5 cm. calculate its torque? a) 5.850 Nm
b) 5.775 Nm
c) 5.725 Nm
d) 5.675 Nm
20. What is the force if a 5 kg Mass of a body will produce an acceleration of 2 meter/sec2? a) 6newtons
b) 8newtons
c) 10newtons
d) 15newtons
21. The distance from the Starting point to the final position of a body in motion is called….. a) Replace
b) Displacement
c) Movement
d) None
22. A force acts on a body of mass 20 kg to lift it with an acceleration of 4 meter/ sec2. Determine the distance travelled in m by the body in 5 seconds. a) 50 m
b) 5 m
c) 500 m
d) none
23. Determine the horse power Required to drive a lift in raising a load of 2000 kgf at a speed of 2 meter/sec, if the efficiency is 70%. a) 75.2 H.P
b) 76.2 H.P
c) 86.2 H.P
24. Mechanical energy posed by a body due is position called ….. a) Potential energy
b) Kinetic energy
c) Light energy
d) Chemical energy
d) 96.2 H.P
25. Calculate the power of pulley used to lift a mass if force (f) = 750N, height (s) = 12m, Time (t) = 3 minutes. a) 5 W
b) 500 W
c) 50 W
d) 5000 W
