SPSC 2015Recruitment TestQuestion Paper

SPSC 2015 Sub Engineer BPS-11, Works & Services Department (2015) — Paper Type A Paper

The official SPSC CCE 2015 Sub Engineer BPS-11, Works & Services Department (2015) — Paper Type A question paper (recruitment test), set by the Sindh Public Service Commission. Every MCQ is typed out below with its correct answer marked.

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SPSC 2015 Sub Engineer BPS-11, Works & Services Department (2015) — Paper Type A paper — full text

Every MCQ from the paper, with the correct answer marked in green.

Sub Engineer BPS-11, Works & Services Department (2015) — Paper Type A. Pre-interview written test · Wednesday 7 October 2015, 10:00 am to 11:30 am · Maximum marks 100. 100 MCQs.

1Unit weight of plain concrete is equal to:
- A)140 lb/ft³
- B)145 lb/ft³
- C)150 lb/ft³
- D)155 lb/ft³
2Unit weight of water is equal to:
- A)60.4 lb/ft³
- B)61.4 lb/ft³
- C)62.4 lb/ft³
- D)63.4 lb/ft³
3Fine aggregates are those which pass through:
- A)#4 Sieve
- B)#8 Sieve
- C)#16 Sieve
- D)#30 Sieve
Explanation: No. 4 sieve = 4.75 mm.
4A good quality stone absorbs water less than:
- A)5%
- B)10%
- C)15%
- D)20%
5The commonly used raw material in manufacture of cement is:
- A)Slate
- B)Sand Stone
- C)Lime Stone
- D)Ballast
6Initial setting of cement is caused due to:
- A)Tri calcium silicate
- B)Di calcium Silicate
- C)Tri Calcium aluminate
- D)Tetra Calcium alumino ferrite
7The specific gravity of sand is approximately equal to:
- A)2.0
- B)2.2
- C)2.4
- D)2.6
Explanation: About 2.65.
8The impurity of mixing water affects the:
- A)Curing
- B)Strength
- C)Setting time
- D)None of these
Explanation: Impurities can affect both setting time and strength; strength is the usual key.
9Soundness test of cement is done to check:
- A)Quality of lime
- B)Ultimate strength
- C)Durability
- D)Initial setting
Explanation: The Le Chatelier soundness test detects expansion caused by excess free lime (and magnesia).
10Reinforcement should be free from:
- A)Paints
- B)Loose Rust
- C)Oil
- D)All of these
11Density of steel is equal to:
- A)7855 kg/m³
- B)7585 kg/m³
- C)7558 kg/m³
- D)8557 kg/m³
12Modulus of elasticity (of steel) is assumed equal to:
- A)29×10⁶ psi
- B)20×10⁶ psi
- C)29×10⁻⁶ psi
- D)20×10⁻⁶ psi
13If d is the diameter of bar, area is computed by formula:
- A)(π/4) × d²
- B)(π/2) × d²
- C)(π/8) × d²
- D)(π/4) × d
14Steel bars are used in reinforced concrete because concrete is:
- A)Weak in tension
- B)Weak in compression
- C)Weak in flexure
- D)All of these
15In reinforced concrete structures load is transmitted by:
- A)Columns
- B)Walls
- C)Both Columns and Walls
- D)None of these
16DPC stands for:
- A)Data Protection Centre
- B)Durable Portland Cement
- C)Damp Proof Course
- D)Dual Protection Coat
17Strength of concrete ____ with time.
- A)Decreases
- B)Remains same
- C)Increases
- D)Not applicable
18Reinforced concrete has relatively high ____ strength
- A)Compressive
- B)Tensile
- C)Flexural
- D)Rupture
Explanation: Compared with plain concrete, the steel gives reinforced concrete its tensile strength.
19Before placing concrete, formwork is applied with a coat of:
- A)Water
- B)Cement Slurry
- C)Crude Oil
- D)None of these
Explanation: Formwork is oiled so that it releases easily.
20Vertical sides of beams are removed after:
- A)1 to 2 days
- B)3 days
- C)7 days
- D)21 days
Explanation: Formwork to the vertical faces of beams, walls and columns: 24–48 hours.
21If slab length is more than 4.5m then the props of slabs can safely be removed after:
- A)7 days
- B)14 days
- C)21 days
- D)28 days
Explanation: Props to slabs spanning over 4.5 m: 14 days (7 days for shorter spans).
22Cracking in RC structures is ____ observed problem
- A)Never
- B)Seldom
- C)Frequently
- D)Un-certainly
23A crack can be repaired by:
- A)Cement grouting
- B)Re-plastering
- C)Epoxy
- D)All of these
24To repair a damaged concrete area, cause of damage:
- A)May be determined
- B)Must be determined
- C)Need not to determine
- D)User choice
25White stains on concrete surface are known as:
- A)Cavitation
- B)Popouts
- C)Efflorescence
- D)Honey Combing
26Efflorescence can be cured by:
- A)Plastering
- B)Cleaning and Rinsing
- C)Washing and Rinsing
- D)All of these
Explanation: As usually keyed.
27Bituminous stains can best be removed by:
- A)Washing and Drying
- B)Sand Blasting and Cleaning
- C)Scraping and Scrubbing
- D)Any
28Minimum splice length is:
- A)6 in
- B)12 in
- C)18 in
- D)24 in
Explanation: ACI sets a 12-inch minimum for lap splices.
29Providing ____ coating on steel bars reduces the corrosion
- A)Zinc
- B)Copper
- C)Nickel
- D)None of these
Explanation: Galvanizing.
30For one cubic meter of brick masonry number of brick required is:
- A)400
- B)425
- C)450
- D)500
- E)550
31Slump test for concrete is carried out to determine:
- A)Strength
- B)Durability
- C)Workability
- D)Water content
32Minimum required water content ratio for a workable concrete is:
- A)0.30
- B)0.40
- C)0.50
- D)0.60
- E)1.0
Explanation: As usually keyed.
33The portion of a brick cut across the width is called:
- A)Closer
- B)Half Brick
- C)Bed
- D)Bat
Explanation: A bat is cut across the width; a closer is cut along the length.
34The concrete slump recommended for foundation is:
- A)25 to 50 mm
- B)30 to 125 mm
- C)50 to 100 mm
- D)75 to 125 mm
- E)None of these
Explanation: As usually keyed.
35The main principle of surveying is to work:
- A)From part to the whole
- B)from whole to the part
- C)From higher level to the lower level
- D)From lower to the higher level
36If whole circle bearing of a line is 120°, its reduced bearing will be:
- A)S 20° E
- B)S 60° E
- C)N 120° E
- D)N 60° E
Explanation: 180° − 120° = 60°, in the SE quadrant.
37The unit of force in C.G.S system of units is called:
- A)Dyne
- B)Newton
- C)Kg
- D)All of these
38The velocity of a moving body is:
- A)A vector quantity
- B)A scalar quantity
- C)A Scalar as well as a vector quantity
- D)None of these
39The resultant of the force acting on a body will be zero if the body:
- A)Rotates
- B)Move with variable velocity in a straight line
- C)Move along a curved path
- D)Does not move at all
Explanation: Zero resultant means the body is at rest or moves with constant velocity; of these options only D fits.
40When a body falls freely under gravitational force it possesses:
- A)Maximum weight
- B)Minimum weight
- C)No weight
- D)No effect on its weight
Explanation: In free fall the body is (apparently) weightless.
41Hooke's law states that stress and strain are:
- A)Directly proportional
- B)Inversely proportional
- C)Curvilinearly related
- D)None of these
42The specific gravity (density) of water is 1000 kg/m³:
- A)At normal pressure of 760 mm
- B)At 4 °C temperature
- C)At mean sea level
- D)All of these
43Coarse grained soils are best compacted by a:
- A)Drum roller
- B)Rubber tyred roller
- C)Sheep's foot roller
- D)Vibratory roller
44The maximum dry density upto which any soil can be compacted depends upon:
- A)Moisture content only
- B)Amount of compaction energy only
- C)Both moisture content and amount of compaction energy
- D)None of these
45Which of the following methods is most accurate for the determination of the water content of soil?
- A)Oven drying method
- B)Sand bath method
- C)Calcium carbide method
- D)Pycnometer method
46Which of the following is a rock:
- A)Quartzite
- B)Mica
- C)Gypsum
- D)None of these
Explanation: Mica and gypsum are minerals; quartzite is a metamorphic rock.
47Combination of steel reinforcement and concrete makes:
- A)RCC
- B)RLC
- C)CC
- D)All of these
48Expansion joint in masonry wall are provided in wall length greater than:
- A)10 m
- B)30 m
- C)20 m
- D)40 m
Explanation: As usually keyed.
49Maximum depth of foundation in clay soil is
- A)30 cm
- B)70 cm
- C)90 cm
- D)120 cm
Explanation: As usually keyed.
50The age of tree can be known by examining
- A)Cambium Layer
- B)Annular rings
- C)Medullary rays
- D)Heart wood
51The internal resistance which the body offers to meet the load is called
- A)Stress
- B)Strain
- C)Pressure
- D)None of these
52The deformation per unit length is called
- A)Strain
- B)Tensile stress
- C)Shear stress
- D)None of these
53Ratio between the change in volume and original volume is called strain as:
- A)Tensile
- B)Compressive
- C)Shear
- D)Volumetric
54The ratio between stress and strain is called as
- A)Modulus of elasticity
- B)Modulus of rigidity
- C)Bulk modulus
- D)None of these
55A cantilever is a beam whose:
- A)One end is fixed and other end is free
- B)Both ends are fixed
- C)Both ends are simply supported
- D)None of these
56The point of contra flexure is a point where:
- A)B.M is maximum
- B)B.M is minimum
- C)B.M is zero or change sign
- D)None of these
57The bending stress at the neutral axis is:
- A)Tensile
- B)Compressive
- C)Zero
- D)Shear
58Hydrographical survey deals with the mapping of:
- A)Heavenly bodies
- B)Hills
- C)Large water bodies
- D)None of these
59In chain surveying, field work is limited to:
- A)Linear measurement only
- B)Angular measurement only
- C)Both (A) & (B)
- D)None of these
60Normal residential RC buildings are designed for:
- A)50 psf
- B)70 psf
- C)90 psf
- D)100 psf
Explanation: As usually keyed: the code live load for residences is about 40 psf; 50 psf is the nearest option.
61In order to obtain best workability of concrete, the preferable shape of aggregate is:
- A)Rounded
- B)Elongated
- C)Angular
- D)All of these
62Water attack on foundation can be minimized by providing:
- A)Raft foundation
- B)Water drains
- C)Sheet piling
- D)All of these
Explanation: As usually keyed.
63Shear cracks in load bearing structures are repaired by:
- A)Mortar grouting
- B)Epoxy compound
- C)Replacement of wall
- D)Any
64Standard size of modular brick is:
- A)19×9×9 cm
- B)20×10×10 cm
- C)19×9×8 cm
- D)20×11×11 cm
Explanation: Actual size 19 × 9 × 9 cm (nominal 20 × 10 × 10 cm with mortar).
65Theodolite is an instrument used for:
- A)Measuring of bearing only
- B)Measuring of horizontal angle only
- C)Measuring of vertical angle only
- D)All of these
66Shrinkage crack is also called:
- A)Active crack
- B)Dormant crack
- C)Shear crack
- D)Flexural crack
67Walls in RC structures are:
- A)Load bearing
- B)May be load bearing
- C)Partition
- D)None of these
Explanation: In an RC frame the beams and columns carry the load; the walls are partitions.
68Strength of concrete does not improve considerably after:
- A)28 days
- B)6 months
- C)1 year
- D)5 years
Explanation: As usually keyed: most strength is gained by 28 days, though it keeps rising slowly afterwards.
69Self weight of reinforced concrete structure is ____ steel structures:
- A)Less than
- B)Equal to
- C)Greater than
- D)Not applicable
70Formwork is an arrangement provided to let concrete attains its ____
- A)Size
- B)Shape
- C)Position
- D)None
71If the natural water content of a soil mass lies between its liquid limit and plastic limit, the soil mass is said to be:
- A)Liquid state
- B)Plastic state
- C)Semi solid state
- D)Solid state
72Sand particles are made of
- A)Rock minerals
- B)Kaolinite
- C)Illite
- D)None of these
Explanation: Kaolinite and illite are clay minerals.
73In case of mechanical vibrators are to be used, workability of concrete should be
- A)High
- B)Low
- C)Same
- D)None of these
74A rich mix can cause ____
- A)Increased heat of hydration
- B)Decreased heat of hydration
- C)Increased setting time
- D)None of these
75One pascal is equal to ____
- A)1 N/m
- B)1 N/m²
- C)1 N²/m
- D)None of these
76The longest river of the world is:
- A)Amazon
- B)Nile
- C)Yangtze
- D)Indus
77The busiest airport of the world is:
- A)London Heathrow
- B)Frankfurt
- C)Paris Charles de Gaulle
- D)New York John F. Kennedy
Explanation: Of these, Heathrow handles the most passengers (Atlanta is busiest overall).
78The first Muslim Nobel Laureate was:
- A)Anwar Sadaat
- B)Mahatir Mohamed
- C)Prof Abdul Salam
- D)Muhammad Younus
Explanation: Anwar Sadat, Nobel Peace Prize 1978 (Abdus Salam won in 1979).
79The largest and deepest sea of the world is:
- A)Caribbean
- B)South China
- C)Mediterranean
- D)Gulf of Mexico
Explanation: As usually keyed.
80Saccharine was invented by:
- A)Henry W. Seeley
- B)Alfred Nobel
- C)Constantin Fahlberg
- D)Etienne Lenoir
81The laws of motion were first presented by:
- A)Albert Einstein
- B)Sir Issac Newton
- C)Pythagoras
- D)Euclid
82Michael Faraday is well known in history as:
- A)An orator
- B)Painter
- C)Scientist
- D)General
83Psychopharmacology is a science dealing with:
- A)Diseases of the mouth
- B)Stratified Rocks
- C)Mood alteration
- D)Scabies
84Sindology is the study of:
- A)Sindh
- B)Funeral shrouds
- C)Caves
- D)Earth's Crust
Explanation: Sindhology is the study of Sindh. (Sindonology, the study of the Shroud of Turin, is a different word.)
85"A brain wave" means:
- A)An electric current in mind
- B)A foolish notion
- C)A bright idea
- D)A known secret
86"A rotten egg" means:
- A)A bad person
- B)A miser
- C)An expired egg
- D)A Chinese dish
87Dr. Schimmel of Harvard University regards Shah Latif as equal to one of the following
- A)Ghalib
- B)Allama Iqbal
- C)Rumi
- D)Shakespeare
88'Iron Curtain' in Europe was a symbolic boundary between the Capitalist West and Communist East. This term was popularized by:
- A)Charles de Gaul
- B)Harry S. Truman
- C)Winston Churchill
- D)Clement Atlee
89Cold War stands for:
- A)Intelligence War
- B)War in Iceland
- C)Family Feud
- D)Chemical Warfare
Explanation: As usually keyed: the Cold War was a rivalry fought through espionage, propaganda and proxies rather than direct war.
90The Charter of Madina was concluded under the guidance of Holy Prophet (PBUH) with:
- A)Christians
- B)Jews
- C)Persians
- D)Romans
91In 1738 Nadir Shah invaded India and sacked Delhi. He took away:
- A)Peacock Throne
- B)Koh-i-Noor
- C)40 Crore Rupees
- D)All of these
92Sir Syed Ahmed Khan was inspired by Lord Macaulay for learning of English, but who influenced his religious ideas?
- A)Mujadid-Alif-Thani
- B)Dara Shikoh
- C)Shah Waliullah
- D)Waqar-ul-Mulk
93The concept of Pakistan as a Nation-State was first formulated in the Muslim League's Allahabad session by Allama Iqbal. It proposed:
- A)Independence from India
- B)Dominion Status
- C)Separate Muslim State within India
- D)Provincial autonomy for Muslim majority provinces
Explanation: Iqbal proposed a consolidated North-West Indian Muslim state "within the British Empire, or without".
94The oldest internet search engine among the following is
- A)Google
- B)Yahoo
- C)ASK
- D)AOL
Explanation: Yahoo (1994) predates Ask Jeeves (1996) and Google (1998).
95The power generating capacity of Diamer-Basha Dam is estimated to be
- A)8000 MW
- B)6000 MW
- C)4500 MW
- D)3500 MW
96The largest Opium producer province in Afghanistan is:
- A)Qandahar
- B)Helmand
- C)Nangarhar
- D)None of these
97The Strait of Malacca is the main shipping channel between the:
- A)Red Sea & Atlantic Ocean
- B)Indian Ocean & North Pacific Ocean
- C)Arabian Sea & Red Sea
- D)None of these
98The largest source of electricity generation in Pakistan is:
- A)Hydel
- B)Thermal
- C)Nuclear
- D)Solar
99The world's largest producer of uranium is:
- A)France
- B)Chad
- C)Canada
- D)South Africa
Explanation: Of these options, Canada. (Kazakhstan has been the largest producer since 2009.)
100Qantas is an airlines of:
- A)Singapore
- B)New Zealand
- C)Australia
- D)Fiji