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RRB JE Practice Quiz CBT 2

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RRB JE Practice Quiz CBT 2

shape Introduction

RRB has released Notification for Railway JE 2019 Exam. The entire recruitment process of RRB JE 2019 Exam shall involve, CBT - I, CBT - II and Document Verification/ Medical Examination as applicable. The normalized score of 1st stage exam shall be used only for short listing of candidates for 2nd stage exam as per their merit. The article RRB JE Practice Quiz CBT 2 provides basic idea of questions asked in each section of[latex]{2}^{nd}[/latex] Stage of RRB JE Recruitment Exam.
The entire recruitment process of RRB JE Exam involves, 1st stage Computer Based Test (CBT), 2nd stage CBT, and Document Verification/ Medical Examination as applicable. RRB JE CBT 2 Exam is divided into five sections Basics of Computers and Applications, Physics and Chemistry, General Awareness, Basic of Environment and Pollution Control and Technical Abilities. There will be 1/3rd of negative marking.

shape Quiz

1. "Khalsa" was founded by-
    A. Guru Gobind Singh B. Guru Ramdas C. Guru Nanak D. Guru Arjun Dev

2. "Mahabharata" the epic was written by-
    A. Vyasa B. Kalidasa C. Tulsidasa D. Valmiki

3. An interpretation of the Indian Constitution is based on the spirit of the-
    A. Fundamental rights B. Fundamental duties C. Preamble D. Directive principles

4. To be eligible for membership of the Lok Sabha, a person should be at least:
    A. 18 years of age B. 30 years of age C. 35 years of age D. 25 years of age

5. Several nations are following a protocol which binds them to reduce emission targets. This protocol was adopted in:
    A. Kyoto, Japan B. Geneva, Switzerland C. New York, USA D. Paris, France

6. Which of these rocks would have alumina as their main component?
    A. Siliceous B. Argillaceous C. Calcareous D. Igneous

7. Match Col. X (Sportsperson) and Col. Y (Sports):T
Column. X Column. Y
P. Jitu Rai 1. Badminton
Q. Heena Sidhu 2. Wrestling
R. Jwala Gutta 3. Shooting
S. Yogeshwar Dutt

    A. P-3, Q-3, R-1, S-2 B. P-2. Q-3, R-1, S-2 C. P-2. Q-2. R-1. S-3 D. P-3, Q-1. R-1. S-2

8. The slogan of Asian Games Incheon 2014 was
    A. Green, Clean and Friendship B. We Cheer, We Share, We Win C. Diversity Shines here D. The Games of Your Life

9. What are the three values cherished by the Commonwealth Games?
    A. Get Set, Go, and Play . B. Faster, Higher, Stronger. C. Diversity Shines here. D. Humanity, Equality, Destiny.

10. What is the likely change that Foreign Direct Investment will bring about in Indian Horticulture?
    A. Increased use of fertilizer and hybrid seeds. B. Slowing down of organic farming . C. More investment in florin culture in hill areas. D. Expansion of area under plantation

11. What information does the Gross Domestic Product not show?
    A. Contribution of industry towards the national Income B. Expenditure on goods and services by the government C. Income distribution across different sections of the population. D. Purchasing power of the people in a country.

12. How do e- commerce ventures build up trust of the buyers in their goods?
    A. Cash on delivery facility B. Ensure a flexible return policy C. Better advertising D. Prompt delivery

13. Which of the following celebrities was recently appointed as "Brand Ambassador" of Telangana?
    A. Deepika Pallikal B. WS Laxman C. Saina Nehwal D. Sania Mirza

14. BKS Iyengar, who died recently, was a world renowned
    A. Yoga Guru B. Artist C. Folk Singer D. Film Director

15. Which Country has recently launched "Gandhi Inspired Tourist Attraction Project" ?
    A. England B. South Africa C. USA D. Japan

Answers and Explanations
1. Answer - Option A
2. Answer - Option A
3. Answer - Option C
4. Answer - Option D
5. Answer - Option A
6. Answer - Option B
7. Answer - Option C
8. Answer - Option C
9. Answer - Option D
10. Answer - Option A
11. Answer - Option C
12. Answer - Option B
13. Answer - Option D
14. Answer - Option A
15. Answer - Option B
1. Which of the following is used as a moderator in nuclear reactors ?
    A. Hard water B. Mineral water C. Deionized water D. Heavy water

2. A particle moves along a circular path with constant speed. What is the nature of its acceleration ?
    A. It is zero B. It is Uniform C. Its direction changes D. Its magnitude changes

3. A body is at rest on the surface of the earth. Which of the following Statements is correct ?
    A. No force is acting on the body B. Only weight of the body acts on it C. Net downward force is equal to net upward force D. None of these is correct

4. The Specific Heat of the gas in an isothermal process is
    A. Zero B. Infinite C. Negative D. Remains constant

5. In a Simple Harmonic Oscillator, at the mean position
    A. Kinetic Energy is minimum, Potential Energy is maximum B. Both Kinetic and Potential Energies are maximum C. Kinetic Energy is maximum. Potential Energy is minimum D. Both Kinetic and Potential Energies are minimum

6. Mirage is a phenomenon due to
    A. Reflection of light B. Refraction of light C. Total Internal reflection of light D. Diffraction of light

7. Which of the following cannot be speed-time (v-t) graph of a body in motion ?
    A. B. C. D.

8. Which one of the following is correct ? The specific volume of water when heated from 0°C
    A. first increases and then decreases B. first decreases and then increases C. increases steadily D. decreases steadily

9. Which of the following is the most acidic in nature?
    A. Phenol B. 2-Nitrophenol C. 4-Nitrophenol D. 2, 4-Nitrophenol

10. What is the coordination number of zinc in the complex ion [latex](Zn ({OH}_{4})({{H}_{2}{O}_{2}}^{2-}))[/latex]
    A. 6 B. 4 C. 2 D. 0

11. Addition of 5 grams of solute A (molecular mass=100) to 100 grams of solvent B causes the same elevation of boiling point as the addition of 10 grams of solute C to 200 grams of the same solvent B. What is the molecular mass of the solute C?
    A. 200 B. 50 C. 150 D. 100

12. Which of the following pair of molecules of the compounds will react together in presence of sodium hydroxide solution under suitable conditions to produce a mixture of four compounds?
    A. [latex]{CH}_{3}{CH}_{2} CHO + {CH}_{3}{CH}_{2}CHO[/latex] B. [latex]{CH}_{3} CHO + {CH}_{3} CHO[/latex] C. [latex]{CH}_{3} CHO + {CH}_{3}{CH}_{2}CHO[/latex] D. [latex]{CH}_{3} CHO + {C}_{6}{H}_{5}CHO[/latex]

13. The correct statement concerning the molecule of ammonia is
    A. It is a V- shaped molecule. B. The H-N-H bond angle are less than 109°-28. C. The repulsion between pair and bond pairs of electrons is less than that bond pair-bond pair. D. Its shape is tetrahedral with lone pairs in two positions.

14. In an industrial area, a sample of 10 litres of air was found to contain ml of sulphur dioxide gas. The concentration of sulphur dioxide gas in air in ppm is
    A. 300 B. 400 C. 500 D. 600

15. For the reaction [latex]2NO, (g) \rightleftharpoons {N}_{2}{O}_{4}(g) + 60 kJ,[/latex] an increase in temperature will
    A. favour the decomposition of [latex]{N}_{2}{O}_{4}[/latex] B. favour the formation of [latex]{N}_{2}{O}_{4}[/latex] C. result in the formation of a different reaction product D. stop the reaction.

Answers and Explanations
1. Answer - Option D
2. Answer - Option C
3. Answer - Option C
4. Answer - Option B
5. Answer - Option C
6. Answer - Option C
7. Answer - Option B
8. Answer - Option B
9. Answer - Option D
10. Answer - Option A
11. Answer - Option D
12. Answer - Option C
13. Answer - Option B
14. Answer - Option C
15. Answer - Option A
1. Which of the following statements about Machine language is correct?
    A. Machine language is machine dependent B. Machine language is machine independent C. Machine language is easier than high-level language to write programs D. Machine language programs require assembler

2. HTTP stands for
    A. Hyper Text Transmission Protocol B. Hyper Text Transfer Program C. Hyper Text Transfer Protocol D. Hyper Text Transmission Program

3. A Virus can not_______
    A. Steal hard disk space B. Steal CPU time C. Log keystrokes D. Increase/decrease the word length of CPU

4. Which of the following is not a valid category of Read Only Memory (ROM)?
    A. PROM B. EPROM C. EE PROM D. EEEPROM

5. The 16's compliment of the hexadecimal number [latex]{(A10)}_{16}[/latex] is
    A. [latex]{(5FO)}_{16}[/latex] B. [latex]{(5EO)}_{16}[/latex] C. [latex]{(5EF)}_{16}[/latex] D. [latex]{(6FO)}_{16}[/latex]

6. Which of the following works on the principle of ‘locality of reference'?
    A. RAM B. ROM C. Cache memory D. Associative memory

7. Which of the following is a real time operating system?
    A. MS-Windows B. Linux C. Unix D. QNX

8. Considering l's complement representation for negative numbers, -126 will be stored into an 8 bit memory space as
    A. 10000001 B. 11111111 C. 10111110 D. 11100001

9. Considering X and Y as binary variables, the equivalent Boolean expression for (X.Y)' is
    A. X'+Y B. X + Y' C. X' + Y' D. X'.Y'

10. ‘C’ is a ________
    A. Low-level programming language B. High-level programming language C. Assembly language D. Machine language

Answers and Explanations
1. Answer - Option A
2. Answer - Option C
3. Answer - Option D
4. Answer - Option D
5. Answer - Option A
6. Answer - Option C
7. Answer - Option D
8. Answer - Option A
9. Answer - Option C
10. Answer - Option B
1. The green house gases as per their decreasing order of effectiveness are
    A. [latex]CFC {N}^{2}O, {CO}^{2}, {CH}^{4}[/latex] B. [latex]{CO}^{2}, {CH}^{4}, {N}^{2}O and CFC[/latex] C. [latex]{CH}^{4}, {CO}^{2}, {N}^{2}O and CFC[/latex] D. [latex]CFC, {CH}^{4} {N}^{2}O, {CO}^{2}, {N}^{2}O,[/latex]

2. In villages, to disinfect the well water, the most common disinfectant used is
    A. silver and bromine B. potassium permanganate C. iodine solution D. chlorine and bromine

3. The carbon monoxide causes
    A. coughing and choking problem in respiratory system B. broncho-constriction C. headache, vomiting, slurring of speech convulsions, coma and death D. chronic bronchitis followed by asthma

4. An octave band is a frequency band with upper and lower cut-off frequencies having a ratio of
    A. 3 B. 4 C. 2 D. 5

5. The [latex]{CO}_{2}[/latex] concentration in the atmosphere was 355 ppm in 1990 that is increasing at a rate of
    A. 1.00 ppm B. 1.5 ppm C. 0.50 ppm D. 0.20

6. The amount of oxygen required to decompose the organics under strong acidic conditions is called
    A. chemical oxygen demand B. biochemical oxygen demand C. biological oxygen demand D. theoretical oxygen demand

7. The photo chemical smog is
    A. criteria pollutant B. primary pollutant C. secondary pollutant D. carcinogenic pollutant

8. The A - weight scale covers sounds of frequencies from
    A. 800 to 3000 HZ B. 500 to 2000 HZ C. 1000 to 3000 HZ D. 1200 to 4000 HZ

9. The rain water turned acidic when its pH falls below
    A. 7.0 B. 6.5 C. 5.6 D. 5.2

10. In case of air pollution, the most affected part of vegetation is
    A. stems of vegetation B. roots of vegetation C. leaves of vegetation D. fruits of vegetation

Answers and Explanations
1. Answer - Option A
2. Answer - Option B
3. Answer - Option C
4. Answer - Option C
5. Answer - Option B
6. Answer - Option A
7. Answer - Option C
8. Answer - Option A
9. Answer - Option C
10. Answer - Option C
1. In a tensile test on mild steel specimen, the breaking stress as compared to ultimate tensile stress is
    A. more B. less C. same D. may have any value

2. Cavitation occurs in centrifugal pumps when the suction pressure is
    A. equal to the vapour pressure of the liquid at the temperature B. less than the vopour pressure of the liquid at the temperature C. more than the vapour pressure of the liquid at the temperature D. none of the above

3. For application involving high discharge and low pressure
    A. a centrifugal pump with blades of forward curvature B. a centrifugal pump with blades of backward curvature C. an axial flow pump D. a reciprocating pump

4. The horse power transmitted by a belt is dependent upon
    A. tension on tight and slack side of the belt [latex]({T}_{1}, {T}_{2})[/latex] B. radius of the pulley (R) C. speed of the pulley (N) D. all of these

5. Which of the following has no unit
    A. kinematic viscosity B. surface tension C. bulk modulus D. strain

6. MIS stands for
    A. military inspection scheme B. management information system C. management intelligence system D. management information system

7. Two springs having spring constant k and arrangement as shown in figure. Equivalent spring constant keq is

    A. [latex] \frac{k}{2}[/latex] B. k C. 2k D. 4k

8. ABC analysis deals with
    A. analysis of process chart B. flow of material C. schedule of job D. controlling inventory costs money

9. The relation between modules of Elasticity (E), modulus of rigidity (G) and Bulk modulus (K) is given by
    A. E = [latex] \frac{6kG}{G + 9K}[/latex] B. E = [latex] \frac{9kG}{G + 3K}[/latex] C. E = [latex] \frac{G + 9K}{3GK}[/latex] D. E = [latex] \frac{G + 3K}{9GK}[/latex]

10. The ratio of elongation in a prismatic bar due to its own weight (W) as compared to another similar bar carrying an additional weight (W) will be
    A. 1 : 2 B. 1 : 3 C. 1 : 4 D. 1 : 2.5

11. Production schedule does not provide information about
    A. production schedule B. material handling C. both (a) and (b) D. none of these

12. The buckling load for a given material depends on
    A. slenderness ratio and area of cross-section B. Poisson's ratio and modulus of elasticity C. slenderness ratio and modulus of elasticity D. slenderness ratio, area of cross-section and modulus of elasticity

13. Which type of thread can transmit power in either direction
    A. acme B. square C. buttress D. BSW

14. Stress relaxation is the phenomenon
    A. stress reduces on increasing load B. in which parts are not loaded C. in which stress remains constant on increasing load D. in which deformation tends to loosen the joint and produces a stress reduction

15. The Coriolis component of acceleration exists only whenever a point
    A. moves in a straight line B. moves along a straight line which has rotational motion C. moves along a circular path D. none of these

16. Total energy line is _____ the hydraulic gradient line
    A. above B. below C. same D. none of the above

17. If a shaft subjected to both tension T and bending moment M, then maximum shear stress is
    A. [latex]\frac{16}{\pi {d}^{3}} \sqrt{{M}^{2} - {T}^{2}}[/latex] B. [latex]\frac{16}{\pi {d}^{3}} \sqrt{{M}^{2} + {T}^{2}}[/latex] C. [latex]\frac{32}{\pi {d}^{3}} \sqrt{{M}^{2} + {T}^{2}}[/latex] D. [latex]\frac{32}{\pi {d}^{3}} \sqrt{{M}^{2} - {T}^{2}}[/latex]

18. The point of contraflexure does not occurs in
    A. a fixed beam carrying a uniformly distributed load B. a simply supported beam carrying a uniformly distributed load C. a fixed beam carrying a uniformly varying load D. none of these

19. A standard ice point temperature corresponds to the temperature of
    A. water at 0°C B. ice at – 4°C C. solid and dry ice D. mixture of ice and water under equilibrium conditions

20. Reheat factor is always
    A. greater than 1 B. less than 1 C. equal to 1 D. none of these

21. The crippling load according to Euler's theory of long column, when both ends of the column are hinged is equal to
    A. [latex]\frac{EI {\pi}^{2}}{4 {l}^{2}}[/latex] B. [latex]\frac{4EI {\pi}^{2}}{{l}^{2}}[/latex] C. [latex]\frac{EI {\pi}^{2}}{{l}^{2}}[/latex] D. [latex]\frac{2 EI {\pi}^{2}}{{l}^{2}}[/latex]

22. Curtis Turbine is a
    A. pressure compounded impulse turbine B. velocity compounded turbine C. pressure-velocity compounded turbine D. velocity compounded impulse turbine

23. The Grubler's criterion for determining the degree of freedom (n) of a mechanism having plane motion is
    A. n = (l – 1) – j B. n = 2(l – 1) – 2j C. n = 3(l – 1) – 2j D. n = 4(l – 1) – 2j

24. Vapour compression refrigeration is some what like
    A. Carnot cycle B. Rankine cycle C. reversed Carnot cycle D. none of the above

25. For multiple clutch, the no of discs on the driving shaft is [latex]{n}_{1}[/latex] and no. of discs on the driven shaft is [latex]{n}_{2}[/latex] then no. of pairs of contact surfaces (n) is
    A. [latex]n = {n}_{1} + {n}_{2}[/latex] B. [latex]n = {n}_{1} - {n}_{2}[/latex] C. [latex]n = {n}_{1} + {n}_{2} -1[/latex] D. [latex]n = {n}_{1} + {n}_{2} + 1[/latex]

26. Strain is defined as the ratio of
    A. change in volume to original volume B. change in length to original length C. change in cross-sectional area to original cross sectional area D. any one of the above

27. In regenerative air preheat-er, the heat is transferred
    A. from a metal wall through one medium to another B. from heating on intermediate material and then heating the air from this material C. by direct mixing D. heat is transferred by bleeding some gas from furnace

28. Thermal radiation extends over the range of
    A. 0.01 to 0.1 [latex]\mu[/latex] B. 100 to 250 [latex]\mu[/latex] C. 0.1 to 100 [latex]\mu[/latex] D. 250 to 1000 [latex]\mu[/latex]

29. Deflection on a simply supported beam having point load at the centre is
    A. [latex]\frac{W {I}^{3}}{8EI}[/latex] B. [latex]\frac{W {I}^{3}}{48EI}[/latex] C. [latex]\frac{W {I}^{3}}{3EI}[/latex] D. [latex]\frac{5W {I}^{3}}{384}[/latex]

30. Hooke’s law holds good upto
    A. yield point B. limit of proportionality C. breaking point D. elastic limit

31. For low clearance volume in steam engine, the process most suitable is
    A. [latex]p{V}^{1.2}[/latex] = constant B. pV = constant C. [latex]p{V}^{r}[/latex] = constant D. [latex]p{V}^{1.5}[/latex] = constant

32. For a refrigeration system if [latex]{T}_{1}[/latex] and [latex]{T}_{2}[/latex] are the limiting temperature ([latex]{T}_{1} > {T}_{2}[/latex]) and W is the work done on the system, then heat input to the system is
    A. [latex]\frac{{T}_{1}W}{{T}_{1} - {T}_{2}}[/latex] B. [latex]W \frac{{T}_{1} - {T}_{2}}{{T}_{1}}[/latex] C. [latex]W \frac{{T}_{1} - {T}_{2}}{{T}_{2}}[/latex] D. [latex]\frac{{T}_{2}W}{{T}_{1} - {T}_{2}}[/latex]

33. Uniform flow is given by the relation
    A. [latex]\frac{\partial v}{\partial t} = 0[/latex] B. [latex]\frac{\partial v}{\partial s} = 0[/latex] C. [latex]\frac{\partial v}{\partial s} = constant[/latex] D. [latex]\frac{\partial v}{\partial t} = constant[/latex]

34. In Taylor's Relation for tool life is given by V[latex]{T}_{n}[/latex] = C, where n has the highest value for
    A. high speed steel tools B. carbide tools C. ceramic tools D. none of these

35. Uniform sand hardness is obtained throughout the mold by following molding process
    A. jolt B. sand slinger C. diaphragm molding D. squeezing

36. The vapour compression refrigerator employs the following cycle
    A. Rankine B. Carnot C. reversed Rankine D. reversed Carnot

37. In Mohr's circle, point on the circle gives
    A. hydro static compression B. hydro static tension C. shear stress D. all of these

38. Minimum number of teeth to avoid interference is _____ for a pressure angle of 20
    A. 16 B. 17 C. 18 D. 32

39. Maximum fluctuation of speed is given by
    A. ratio of maximum and minimum speed B. difference between the maximum and minimum speed C. ratio of maximum fluctuation of speed to the mean speed D. difference between the maximum and minimum energy

40. The condensing pressure due to the presence of non condemn-able gases, as compared to that actually required for condensing temperatures without non condemn-able gases.
    A. will be higher B. will be lower C. will remain unaffected D. unpredictable

41. The lowest speed is used in
    A. knurling B. taper turning C. boring D. threading

42. In wire drawing the press used is
    A. knukle press B. toggle press C. double action press D. none of these

43. When the venturimeter is inclined then what happens to the reading
    A. increases B. decreases C. remains the same D. it is not applicable to venturimeter

44. Draft tube is used
    A. to transport water downstream without eddies B. to convert the kinetic energy to flow energy by a gradual expansion of the flow cross section C. for safety of the turbine D. to increase flow rate

45. Ammonia-absorption refrigeration cycle requires
    A. very little work input B. maximum work input C. zero work input D. none of the above

46. A thermal power plant designed to operate in cold climate is operated is hot climate it will develop
    A. less power B. more power C. same power D. more or less depending on the size

47. A relation between thermodynamic boundary layer and hydrodynamic boundary layer exists in
    A. Reynold's number B. Prandte’s number C. Nusselt’s number D. Euler’s number

48. The relative coefficient of performance is
    A. actual COP/theoretical COP B. theoretical COP/actual COP C. actual COP x theoretical COP D. 1-actual COP x theoretical COP

49. Method of governing used in diesel engine is
    A. quantity governing B. quality governing C. combined governing D. hit and miss governing

50. In S.J. unit, one ton of refrigeration is equal to
    A. 210 kJ/min B. 21 kJ/min C. 420 kJ/min D. 840 kJ/min

51. A steam pipe is to be insulated by two materials having thermal conductivities [latex]{K}_{1}[/latex] and [latex]{K}_{2}[/latex] such that [latex]({K}_{1} < {K}_{2}) [/latex] so, for better insulation
    A. [latex]{K}_{1}[/latex] should be put over pipe and [latex]{K}_{2}[/latex] over it B. [latex]{K}_{2}[/latex] should be put over pipe and [latex]{K}_{1}[/latex] over it C. [latex]{K}_{1}[/latex] and [latex]{K}_{2}[/latex] may be put in any order D. none of these

52. Viscous force is proportional to
    A. shear stress due to viscosity B. coefficient of viscosity C. area of the pipe D. none of these

53. A refrigerator cycle operates between condenser temperature of + 27ºC and evaporator temperature of – 23ºC. The C.O.P. of the cycle is
    A. 0.2 B. 1.2 C. 5 D. 6

54. In cetane number the new reference taken is
    A. heptamethylnonane B. [latex]\alpha[/latex]-methyl napthalene C. n - heptane D. iso-octane

55. Domestic refrigerator working on vapour compression cycle uses the following type of expansion device
    A. electrically operated throttling valve B. manually operated valve C. thermostatic valve D. capillary tube

56. Fins are used to
    A. increase the area B. heat accumulation C. to increase the surface area of heat transfer D. none of these

57. Tds = dH - Vdp is application to
    A. closed system B. open system C. reversible and irreversible systems D. all of these

58. Bernoulli's equation is applicable for
    A. the flow is uniform, steady and in compressible B. the flow is non-viscous, uniform and steady C. the flow is steady, non-viscous, in compressible and irrotational D. none of these

59. Lift in a body in fluid medium is proportional to
    A. pressure force B. resistance force C. pressure force – resistance force D. pressure force + resistance force

60. In Newton's law of viscosity, shear stress is proportional to
    A. velocity B. velocity gradient C. shear strain D. viscosity

61. For a liquid if the velocity is increased twice and diameter of the pipe is decreased one fourth then ratio of Reynold's number will be
    A. 2 B. 1 C. [latex]\frac {1}{2}[/latex] D. [latex]\frac {1}{4}[/latex]

62. Which statement is wrong related to core
    A. core is drawn after pouring metal B. core is drawn before pouring metal C. core has no relation with solidification D. both (a) and (c)

63. In a centrifugal pump discharge Q is proportional to
    A. [latex]{N}^{2}[/latex] B. N C. [latex]{N}^{3}[/latex] D. [latex]{N}^{\frac {1}{2}}[/latex]

64. Tooth paste tube is made by following process
    A. forging B. piercing C. impact extrusion D. drawomg

65. Pick up the correct statement about giving up of heat from one medium to other in ammonia absorption system
    A. strong solution to weak solution B. weak solution to strong solution C. strong solution to ammonia vapour D. ammonia vapour to weak solution

66. Freon group of refrigerants are
    A. inflammable B. toxic C. non-inflammable and toxic D. non-toxic and non-inflammable

67. In grey cast iron, carbon is present in the form of
    A. cementite B. free carbon C. spheroids D. flakes

68. In thermit welding, iron oxide and aluminium are mixed in following proportions
    A. 1 : 1 B. 3 : 1 C. 1 : 3 D. 1 : 2

69. In vapour compression refrigeration system, refrigerant occurs as liquid between
    A. condenser and expansion valve B. compressor and evaporator C. expansion valve and evaporator D. compressor and condenser

70. Which of the following organisation is best suited for military
    A. functional organisation B. line organisation C. staff organisation D. line and staff organisation

71. The term ‘value’ in value engineering refers to
    A. total cost of the product B. utility of the product C. selling price of the product D. manufactured cost of the product

72. Micro motion study is
    A. subdivision of an operation into therbligs and their analysis B. enlarged view of motion study C. analysis of one stage of motion study D. minute and detailed motion study

73. CPM and PERT technique is used for
    A. short term B. long term C. moderate term D. none of these

74. A body having velocity of 199 m/s. Find its Mach number
    A. 1.2 B. 0.8 C. 0.6 D. 1.4

75. Tools fails suddenly due to
    A. flank wear B. crater wear C. both (a) and (b) D. either (a) or (b)

76. Operation research is used in
    A. linear programming B. queuing theory C. transportation problems D. all of these

77. Laser application has made application in
    A. electronic industry B. casting C. machining D. none of these

78. The advantage of dry compression is that
    A. it permits higher speeds to be used B. it permits complete evaporation in the evaporator C. it results in high volumetric and mechanical efficiency D. All of the above

79. Slenderness Ratio of a column is the ratio of
    A. its length to least radius of gyration B. its length to least lateral direction C. its lateral dimension to radius of gyration D. none of the above

80. 3 - 2 - 1 pin method checks ____ degrees of freedom
    A. 9 B. 6 C. 3 D. 12

81. When cooling of Austenite takes place in temperature range of 205º C – 315º C then formation of
    A. spherodite B. trossite C. martensite D. sorbite

82. The critical path of a network represents
    A. the minimum time required for completion of project B. the maximum time required for completion of project C. maximum cost required for completion of project D. minimum cost required for completion of project

83. The evolution of heat of solution takes place in ammonia absorption plant when
    A. ammonia vapour goes into solution B. ammonia vapour is driven out of solution C. lithium bromide mixes with ammonia D. weak solution mixes with strong solution

84. The temperature and carbon content at which eutectoid reaction occur in Fe - C equation diagram are
    A. 723º C and 0.02% C B. 723º C and 0.80% C C. 710º C and 0.69% C D. 710º C and 0.69% C

85. Which gas is not harmful used in refrigeration
    A. [latex]{CO}_{2}[/latex] B. [latex]{NH}_{3}[/latex] C. Freon D. none of these

86. The COP of a vapour compression plant in comparison to vapour absorption plant is
    A. more B. less C. same D. unpredictable

87. C language is a
    A. high level B. low level C. middle level D. none of these

88. Atomic packing factor for body centered cubic is
    A. 0.69 B. 0.63 C. 0.58 D. 0.71

89. Hardness of water is due to
    A. impurities B. Ca and Mg C. Ca and Na D. none of these

90. Semless pipes are made by
    A. extrusion B. drawing C. piercing D. forging

91. Power generated by which source is now most effective
    A. wind B. tidal wave C. solar D. none of these

92. Convert 1026 decimal to octal
    A. 536 B. 534 C. 524 D. 520

93. Guided Rocket missile is a
    A. mass variant B. time variant C. mass and time variant D. none of these

94. For a shaft having normal stress and bending stress [latex]\sigma[/latex] then equivalent shear stress [latex]\Gamma[/latex] is
    A. [latex]\frac{1}{2} \sqrt{{\sigma}^{2} + {\Gamma}^{2}}[/latex] B. [latex]\frac{1}{2} \sqrt{{\sigma}^{2} + {4 \Gamma}^{2}}[/latex] C. [latex]\frac{1}{2} \sqrt{{\sigma}^{2} - {4 \Gamma}^{2}}[/latex] D. [latex]\frac{1}{2} \sqrt{{\sigma}^{2} + {\Gamma}^{2}}[/latex]

95. Octane number of petrol found is Indian refineries is
    A. 40 - 45 B. 50 - 55 C. 80 - 85 D. 20 - 30

96. In a reversible heat engine the temperature limits are 100 k and 400 K. If heat output is 200 kJ and heat input is
    A. 400 kJ B. 200 kJ C. 100 kJ D. 800 kJ

97. Velocity potential function is applicable for
    A. rotational flow B. irrotational flow C. both (a) and (b) D. none of these

98. Two plates are joined by rivets. The pull required to tear off the plate across a row of rivets per pitch length is equal to
    A. ( p – d)t × [latex]{f}_{t}[/latex] B. p × t × [latex]{f}_{t}[/latex] C. d × t × [latex]{f}_{t}[/latex] D. ( p + d) × t × [latex]{f}_{t}[/latex]

where d = diameter of rivet
p = pitch of rivet
t = thickness of rivet
[latex]{f}_{t}[/latex] = permissible tensile stress
99. For minimum axial thrust, the type of gear used should be
    A. worm hear B. helical gear C. herringbone hear D. hybrid gear

100. Short horizontal lines on pressure-enthalpy chart show
    A. constant pressure lines B. constant temperature lines C. constant total heat lines D. constant entropy lines

Answers and Explanations
1. Answer - Option B
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3. Answer - Option C
4. Answer - Option D
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59. Answer - Option D
60. Answer - Option B
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87. Answer - Option C
88. Answer - Option C
89. Answer - Option D
90. Answer - Option C
91. Answer - Option B
92. Answer - Option B
93. Answer - Option D
94. Answer - Option D
95. Answer - Option C
96. Answer - Option D
97. Answer - Option B
98. Answer - Option A
99. Answer - Option C
100. Answer - Option A