Related with 'TEMPORARY HARDNESS' | We found Total 562 Question paper ..!

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The ratio of long to short dashes in a chain line ranges from
A) 3:1to2:1 B) 6:1to4:1
C) 8:1t0 10:1 D) 5:1to7:1

Folding method of drawing sheet as per method 1 is
A) 297 x 210 B) 297 x 190
C) 185 x 65 D) 240 x 330

The asymptotes of any hyperbola intersects at
A) On the directrix B) On the axis

C) At focus D) Centre

Which of the followi.... See more

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Shadow price in linear programming refers :

(A) lowest sales price
(B) maximum cost per item
(C) value assigned to one-unit

(D) cost of bought-out items

Preheating is essential in welding :
(A) _ high speed steel ൯) cast iron

(C) non ferrous metal ൯) none of these

Which structure has maximum hardness?
(^) Pearlite (B) Martensite
(C) Sorbi.... See more

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Which type of welding is to be used to make joint of thick pipes of rails ?
A) Thermit welding
B) Pressure Thermit welding

D

)
C) Fusion Thermit welding
) None of the above

Which gas is suitable for welding of carbon steel and titanium by plasma arc welding
process ?

A) Helium B) Co,
C) Argon D) Neon

Which tes.... See more

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The solubility products of AgCl and PbClz are 1.8 x 10-!° and 1.7 x 10° respectively at room
temperature. Hydrochloric acid is added to a solution that contains Ag* and Pb?+ until the

equilibrium concentration of Cl becomes 0.10 M. What will be the concentrations of Pb?* at
equilibrium?

(A) 1-6 (8) 1.7x 104M
(© 17x 103M (0) 1.8x10-°M

Which of the following statements are INCORRECT?
0) .... See more

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What is the melting temperature of Tungsten?

(A) 1495°C ®) 181010

(€) 110050 ൫ 33800
Which among the following is not a non-ferrous metal?

(A) Copper (B) Aluminium

(C) Zine (D) Pig iron
Which is the property of a metal to withstand shock or impact?

(^) Toughness (B) Elasticity

(6) Brittleness (D) Hard.... See more

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What is the function of lead as an alloying element ?
A) To improve strength and toughness

B) To increase the elastic limit of steel
C) To improve machinability
D) To improve hardness

Which of the following is a part of Taly-surf ?
A) Stylus B) Motor race
C) Analyser D) All of the above

Roughness value 0.2 to 0.8 microns is indicated by which s.... See more

94. The theorem stated as “The algebraic sum of moments of a system of coplanar forces about a
moment centre is equal to the moment of their resultant force about the same moment
centre.” is :

(A) Varignon’s theorem ൯) Lami’s theorem

(0 Cauchy’s theorem ൯) Euler’s theorem

95. The distance of centroid of a semi-circle of radius ‘R’, from its base is :

27 167

^) 535 2

^ 37 ®) 97
47 47

= دنت ری
.... See more

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‘he Chisel used to cut curved grooves (Oil grooves) :

(^) Half-round nose chisel (B) Diamond point chisel
(C) Web chisel (D) Cross-cut Chisel
The fine adjustment screw of universal surface gauge is fixed on:
(^) Base Plate (B) Guide Pin
(C) Rocker Arm () Spindle
The pitch of threaded spindle of Matric outside micrometer is :.... See more

Correct Answer:- Option-B
Question85:-Flame temperature of oxy-acetylene gas flame

A:-2400°C to 2700°C

B:-2700°C to 2800°C

C:-3100°C to 3300°C

D:-1800°C to 2200°C

Correct Answer:- Option-C
Question86:-The angle of acme thread is

A:-60°

B:-29°

C:-47.5°

D:-55°

Correct Answer:- Option-B
Question87:-Studs are used to

A:-Remove the tap from a hole

B:-Connect machine part.... See more

problem caused by littering of used tyres
Correct Answer:- Option-C
Question17:- polymer is suitable for blow moulding
A:-NR
B:-EPDM
C:-Silicone
D:-SBS
Correct Answer:- Option-D
Question18:-The life of an oil sealdepends on ___ property
A:-Compressive modulus
B:-Creep modulus
C:-Compression set
D:-Hardness
Correct Answer:- Option-C
Question19:-For getting the faster cure rate in IIR
A:-we can increase isoprene content
B:-we can halo.... See more

B:-Anions

C:-Electrophilic addition and cyclisation
D:-Electrophilic addition only

Correct Answer:- Option-C

Question35:-When you get ethylene based rubbers, the resulting polymer gets a Tg
above that of PE (assuming it to around -80C). This is because

A:-rubberiness is achieved by breaking the crystallization of PE by adding
bulky side chains

B:-the resulting polymer has lesser inter chain attractions
C:-rubberiness leads to reduction.... See more

B:-50 mm/min

C:-5 mm/min

D:-None of these

Correct Answer:-Question Cancelled

Question98:-In HDT test, a deadweight load is applied at the center of the specimen
which is sufficient to produce a maximum fiber stress of

A:-300 psi
B:-264 psi
C:-250 psi
D:-500 psi
Correct Answer:- Option-B

Question99:- is used to measure the curing characteristics of the rubber
compounds

A:-Mooney viscometer

B:-Moving di.... See more

Question72:-The rock which shows great variation in water yielding capacity is

A:-Sandstone
B:-Granite
C:-Coal
D:-Marble
Correct Answer:- Option-B
Question73:-Groundwater table may be lowered by method
A:-Electro - osmosis method
B:-Vacuum method
C:-Well point system
D:-All of the above
Correct Answer:- Option-C
Question74:-Hydrograph is the graphical representation of
A:-Runoff and time
B:-Surface runoff and time
C:-Groundwater fl.... See more

C:-Peroxide vulcanisation
D:-metal oxide vulcanisation
Correct Answer:- Option-C
Question38:-The materials used to ensure scorch safety of the rubber compound
A:-Processing aids
B:-Retarders
C:-Antioxidants
D:-Tackifiers
Correct Answer:- Option-B

Question39:-The strong antidegradants which discolour and stain the material are

A:-Phenolic compounds

B:-Amines

C:-Phosphites

D:-None of the above

Correct Answer:- Op.... See more

Question86:-Which among the following is a unit of tear strength?
A:-N/m2
B:-kN/m
C:-kg.cm
D:-J/m?
Correct Answer:- Option-B
Question87:-Durometer is used to measure
A:-Hardness
B:-Resiliance
C:-Elasticity
D:-Plasticity
Correct Answer:- Option-A

Question88:-In an abrasion resistance test using DIN abrader, the volume loss of
standard rubber in cubic millimeters is v. and volume loss of test rubber in cubic
millimeters is ४५
See more

FINAL ANSWER KEY

Question 136/2023/0ட

Paper Code:

Category 314/2021

Code:

Exam: Drilling Assistant (SR for SC/ST)

Date of Test 04-08-2023
Department Ground Water

Question1:-Which of the following statement is/are true with the scraper?

1. Scraping is done before machining or filing

ii. The overall length of blade and handle of a scraper may range from 150 to 500
mm

iii. For work of average hardnes.... See more

Question31:-Which of the following statements related to boiler feed water
alkalinity is true?

Statement 1 - Excess alkalinity causes caustic embrittlement

Statement 2 - Alkalinity needs to be high enough to prevent corrision

A:-Both are correct
B:-Both are incorrect
C:-only 1 correct

D:-Only 2 correct

Correct Answer:- Option-A

Question32:-Statement 1 - Conductivity can be used to measure amount of total
dissolved solids in fe.... See more

C:-Ultimate strength
D:-Yield strength
Correct Answer:- Option-D

Question12:-The strain that occurs when a material is stressed to its proportional
limit is

A:-Resilience
B:-Maximum flexibility
C:-Toughness
D:-Increase in stiffness

Correct Answer:- Option-B

Question13:-Wetting agent enhances

A:-Adhesion

B:-Cohesion

C:-Surface tension
D:-lonic bonding

Correct Answer:- Option-A

Question14:-.... See more

D:-Children are most commonly affected
Correct Answer:- Option-D
Question67:-Which author developed framework for public health nursing ?
A:-Nancy Milio
B:-Lydia Hall
C:-Kings
D:-Mark Salmon Whites
Correct Answer:- Option-D
Question68:-All the following methods are used to remove hardness of water except
A:-Addition of sodium carbonate
B:-Base exchange process
C:-Chlorination
D:-Boiling
Correct Answer:- Option-C
Question69:-Snehapoorvam Sch.... See more

D:-Peroxide
Correct Answer:- Option-A

Question29:-The synthetic rubber used in the inner tubes of tyre is

A:-SBR

B:-NR

C:-IIR

D:-Hypalon

Correct Answer:- Option-C

Question30:-Higher acrylonitrile content in NBR leads to

A:-Ilmproved hardness
B:-Good tensile strength
C:-Good oil resistance
D:-All the above mentioned

Correct Answer:- Option-D

Question31:-An example for a homopolymer is
See more

B:-KOH number
C:-Viscosity

D:-Cure rate

Correct Answer:- Option-A

Question41:-As per ASTM D395 for the determination of compression set under
constant force in air, a force of is applied to the specimen for a set time at a
set temperature.

A:-1.8 kN

B:-1 kN

C:-2 kN

D:-3 kN

Correct Answer:- Option-A
Question42:-ISNR grade which doesn't show storage hardness

A:-ISNR-50

B:-ISNR-20

C:-I.... See more

B:-Ebonite bonding
C:-lsocyanate bonding
D:-Brass-plating
Correct Answer:- Option-B
Question69:-Estimations done by standard iodine solutions are called
A:-lodometry
B:-lodimetry
C:-lodine absorption
D:-lodolysis
Correct Answer:- Option-B

&

Question70:-
What is the meaning of this chemical hazard symbol?

A:-Flammable liquid
B:-Explosive
C:-Oxidizable liquid
D:-Open flame
Correct Answer:- Option-C
Question71:-W.... See more

C:-Inadequate mixing
D:-High mercury content
Correct Answer:- Option-B
Question74:-Platinum is added to gold foil (direct filling gold) to
A:-Increase hardness and wear resistance
B:-Facilitate cold welding
C:-Dimensional stability
D:-All of the above
Correct Answer:- Option-A
Question75:-10% polyacrylic acid conditioner is used during GIC restoration
A:-For better flow
B:-To remove smear layer
C:-To remove infected dentin
D:-All the above
.... See more

FINAL ANSWER KEY

Question 18/2023/0ட

Paper Code:

Category 315/2022

Code:

Exam: Refrigeration Mechanic UIP

Date of Test 04-04-2023

Department Health Services

Question1:-Which one of the following should not be followed inside a workshop, as
per the general safety rules ?

A:-Do not clean hands in the coolant fluid

B:-A machine in motion can be left as it is, by the worker
C:-Roll up the sleeves tigh.... See more

D:-radius gauge
Correct Answer:- Option-C
Question68:-What is the use of screw pitch gauge?
A:-To determine the pitch
B:-To measure pitch
C:-To measure pitch diameter
D:-To measure major diameter
Correct Answer:- Option-A
Question69:-Where is the rocker arm fixed in universal surface gauge?
A:-On the spindle
B:-On the base
C:-On the snug
D:-Along with scriber
Correct Answer:- Option-B
Question70:-Which among the following is not the physica.... See more

Question19:-What is the average weight of Teak wood in kg/*m*(3)?>
A:-650 kg/*m*(3)*
B:-515 kg/m*(3)"
@-545 ।.9/11^(3)`
0:-780 (0/71^(3)`
Correct Answer:- Option-A
Question20:-Which wood has sweet smell?
A:-Deodar wood
B:-Rose wood
C:-Sisso wood
D:-Sandal wood
Correct Answer:- Option-D

Question21:-Which property of Timber should be capable of regaining its original shape where load causing deformation is
removed?

A:-ElasticitySee more