UPSC Recruitment Paper 2017 : Deputy Controller of Explosives

(Chemical Engineering & Chemistry)

1. The condition of stable equilibrium for a floating body is:
(a) The metacentre M coincides with the centre of gravity G
(b) The metacentre M is below the centre of gravity G
(c) The metacentre M is above the centre of gravity G
(d) The centre of buoyancy B is above the centre of gravity G

2. For a submerged curved surface, the vertical component of the hydrostatic force is:
(a) Mass of the liquid supported by the curved surface
(b) Weight of the liquid supported by the curved surface
(c) The force on the projected area of the curved surface on vertical plane
(d) Centriod of the liquid displaced by the body

3. The least radius of gyration of a ship is 8 m and metacentric height is 70 cm. Then the time period of oscillation of the ship is nea rly:
(a) 19.2 s
(b) 17.4 s
(c) 15.6 s
(d) 13.8 s

4. The flow of water leaving the impeller in a centrifugal pump casing is:
(a) Forced vortex flow
(b) Free vortex flow
(c) Centrifugal flow
(d) Centripetal force

5. A mouthpiece is a short length of pipe fitted to a tank containing flui d.Which one of the following mouthpiece s is having a maximum coefficient of discharge?
(a) External mouthpiece
(b) Convergent-divergent mouthpiece
(c) Internal mouthpiece
(d) Cylindrical mouthpiece

6. Hydraulic Gradient Line (HGL) is the sum of:
(a) Pressure head and kinetic head
(b) Kinetic head and datum head
(c) Pressure head, kinetic head and datum head
(d) Pressure head and datum head

7. Three pipes of length 800 mm, 500 mm and 400 mm and a diameter of 500 mm,400 mm and 300 mm respectively are connected in series. These pipes are to be replaced by a single pipe of length 1700 mm, and then the diameter of the single pipe should be nearly: 
(a) 324 mm
(b) 344 mm
(c) 372 mm
(d) 412 mm
8. A smooth plate of length 4 mm and width 1.5 mm is moving with a velocity of 4 m/s in stationary air. If the kinematic viscosity of air is 1.5 × 10−5 m²/s, the thickness of the boundary layer at the trailing edge of the plate will be: 
(a) 83.4 mm
(b) 86.3 mm
(c) 89.2 mm
(d) 92.1 mm

9.  How many number of pumps are required to take out the water, from a deep well under a total head of 89 mm, assuming that all pumps are identical and are running at 800 rpm, the specific speed of each pump is  25, while rated capacity of each pump is 0.16 m³/s                                                                
(a) 3
(b) 4
(c) 5
(d) 7

10. The thermal conductivity (k) of insulators:
(a) Increases with increase in temperature
(b) Always increases with increase in the density of the material
(c) Decreases with increase in temperature
(d) Decreases due to convection phenomenon in insulators

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UPSC Recruitment Paper 2017 : Foreman (Chemical) in Directorate General of Aeronautical Quality Assurance

(Aptitude Test)

1. Cordite, an explosive material is prepared from:
(a) 93% Nitro-glycerine and 7% Gun-cotton
(b) Cool mixture of HNO₃ and H₂SO₄
(c) Gelatinized combination of Nitro-glycerine and Nitro-cellulose
(d) 79% Potassium Chloride and 21% Nitro-benzol

2. Consider the following materials:
1. Sand
2. Granite
3. Clay Brick
4. Steel
What is the correct sequence in the  increasing order of their bulk density?

 (a) 1, 3, 2 and 4
(b) 3, 1, 2 and 4
(c) 1, 3, 4 and 2
(d) 3, 4, 1 and 2

3. The equation: λ = h/m.v =h/p describes:
where: λ is the wavelength of the particle, h is the Plank’s constant and p is the momentum of the particle
(a) Sommerfeld’s relative atomic model
(b) Bohr’s Quantum atomic model
(c) Thomson’s Plum pudding atomic model
(d) De-Broglie’s atomic model

4. Which one of the following is not a  neutral refractory material?
(a) Carbon
(b) Bauxite
(c) Chromite
(d) Dolomite

5. Flint glass is also called as:
(a) Soda-lime glass
(b) Potash- lime glass
(c) Potash- lead glass
(d) Borosilicate glass

6. The yield of concrete per bag of cement for a concrete mix of 1: 2: 4 proportions is nearly:
(a) 0.18 m³
(b) 0.16 m³
(c) 0.14 m³
(d) 0.12 m³

7. Which one of the following minerals is  not found in the sedimentary rocks?
 (a) Calcite
(b) Gypsum
(c) Magnesite
(d) Feldspar

8. Which one of the following oils is the commonly used as vehicle of a paint?
 (a) Nut oil
(b) Linseed oil
(c) Poppy oil
(d) Tung oil

9. Which one of the following is an example for a biodegradable plastic?
(a) Polybutadienehydroxide
(b) Chlorofluorocarbon
(c) Polyhydroxyalkanoate
(d) Melamine formaldehyde

10. Bitumen completely dissolves in which one of the following solvents?
(a) Water
(b) Carbon monoxide
(c) Carbon dioxide
(d) Carbon bisulphide

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UPSC Recruitment Paper 2018 : Administrative Officer in GSI

UPSC Recruitment Paper 2018 : Assistant Geologists

(Geology)

UPSC Recruitment Paper 2018 : Vice Principal - Assistant

UPSC Recruitment Paper 2018 : Drugs Inspector (Medical Devices)

UPSC Recruitment Paper 2018 :  Lecturer

(Computer Engineering)

UPSC Recruitment Paper 2018 : Lecturer

UPSC Recruitment Paper 2018 : Administrative Officer in Central Sheep Breeding Farm

UPSC Recruitment Paper 2018 : Lecturer (Electrical Engineering)  

UPSC Recruitment Paper 2018 : Lecturer (Civil Engineering) & Constructions 

UPSC Recruitment Paper 2018 : Lecturer (Civil Engineering) in DTE

UPSC Recruitment Paper 2018 : Lecturer (Chemical Engineering) in DTTE

UPSC Recruitment Paper 2018 : Lecturer in Chemical Engineering

UPSC Recruitment Paper 2018 : Administrative Officer Border Roads Organisation

UPSC Recruitment Paper 2017 : Scientific Officer (Chemical)

(Aptitude Test)

UPSC Recruitment Paper 2017 :  Labour Enforcement Officers (Central)

(GAT)

1. Consider the following Commissions / Committees:
1. First National Commission on Labour
2. Labour Investigation Committee
3. Royal Commission on Labour
4. National Commission for Enterprises in the Unorganized Sector
Which one of the following is the correct chronology of the above, in ascending order, in terms of their submission of reports?
(a) 2-4-1-3
(b) 2-1-3-4
(c) 3-2-1-4
(d) 3-4-2-1

2. Family planning became an integral part of labour welfare as per the International Labour Organization Resolution passed in the year:
(a) 1917
(b) 1927
(c) 1937
(d) 1947

3. Which of the following is / are  NOT correct approach with respect to welfare services undertaken by organizations in the commercial and public organizations?
1. As welfare is provided by the State to all , hence duplication by other organizations is undesirable
2. Welfare services may be provided for matters concerning employees which may not be immediately connected with their jobs, though connected with their place of work
3. Welfare services will include special services for retired employees
4. Child care facilities may be provided on a collective basis
Select the correct answer using the code given below:
(a) 1 only
(b) 2 and 4
(c) 1 and 2
(d) 3 and 4

4. Which one among the following is the earliest labour law in India?
(a) Contract Labour (Regulation and Abolition) Act
(b) Trade Unions Act
(c) Employee’s Compensation Act
(d) Factories Act

5. Which one of the following theories of labour welfare is also called efficiency theory?
(a) Functional theory
(b) Public relations theory
(c) Religious theory
(d) Philanthropic theory

6. Which of the following statements with  respect to housing is / are NOT correct?
1. It is a basic requirement for living life with dignity
2. According to the Revised Integrated Housing Scheme 2016 for workers, central assistance for a new house may be released in twelve equal installments
3. House Listing and Housing Census data of 2011 is provided by the Office of Registrar General and Census Commissioner
Select the correct answer using the code given below:
(a) 1 and 2
(b) 2 only
(c) 1 and 3
(d) 3 only

7. Which of the following benefits can be combined under the Employees’ State Insurance Act, 1948?
(a) Sickness benefit and maternity benefit
(b) Sickness benefit and disablement benefit for temporary disablement
(c) Maternity benefit and disablement benefit for temporary disablement
(d) Maternity benefit and medical benefit

8. Which one of the following is   the total period of maternity leave admissible to a woman employee having two or more than two surviving children under the provisions of the Maternity Benefit (Amendment) Act, 2017?
(a) Twenty six weeks
(b) Fourteen weeks
(c) Twelve weeks
(d) Sixteen weeks

9. What is the share of women representatives in the Advisory Committee to be constituted under the Equal Remuneration Act, 1976?
(a) One half of the total members
(b) One third of the total members
(c) One fourth of the total members
(d) Three fourth of the total members

10. The International Labour Organization’s Convention No 102 on ‘Minimum Standards of Social Security’ was adopted in the year:
(a) 1948
(b) 1953
(c) 1952
(d) 1950

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UPSC Recruitment Paper 2017 :  Assistant Engineer Grade-I

(Mining, Mechanical & Drilling Engineering)

 1. Throttling curve in a centrifugal pump running at constant speed represents the relationship between:
(a) Power and flow rate
(b) Efficiency and flow rate
(c) Head and flow rate
(d) Efficiency and net suction positive head 

2. Consider the following statements regarding the stability of bodies in a fluid medium:
1. The stability of a submerged body requires that the centre of gravity lies below the centre of buoyancy
2. To improve the stability of a floating body by increasing the bottom width and reducing the draft
3. For stability of a floating body, the metacentre should be above the centre of buoyancy but below the centre of gravity
Which of the above statements are correct?
(a) 1, 2 and 3
(b) 1 and 2 only
(c) 1 and 3 only
(d) 2 and 3 only 

3. How does the angle of attack effect lift and drag?
(a) Increasing the angle of attack can decrease the lift, but it also increases drag so that less thrust required
(b) Increasing the angle of attack can increase the lift, but it also increases drag so that less thrust required
(c) Increasing the angle of attack can increase the lift, but it also increases drag so that more thrust required
(d) Increasing the angle of attack can decrease the lift, but it also increases drag so that more thrust required

4. A stone weighs 392.4 n in air and 196.2 n when fully submerged in water. The volume of the stone is:
(a) 1 × 104 cm³
(b) 2 × 104 cm³
(c) 3 × 104 cm³
(d) 4 × 104 cm³

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