IES 2011Typical coolants used for machining aluminium are :

1. Kerosene oil

2. Soda water

3. Air

4. Paraffin oil

(a) 1, 2, 3 and 4

(b) 2 and 3 only

(c) 1 and 2 only

(d) 3 and 4 only

GATE - 2002Trepanning is performed for

(a) Finishing a drilled hole

(b) Producing a large hole without drilling

(c) Truing a hole for alignment

(d) Enlarging a drilled hole

GATE - 1998 Failure of a bead weld between a heavy steel sectionand a thin section is mainly due to the formation of

(a) Spherodite

(b) Bainite

(c) Carbon free zone due to burning of carbon at hightemperature

(d) Martensite

IES - 2002Assertion (A): Slender shafts are turned with toolshaving an approach angle of 90°.

Reason (R): Small approach angle, however, resultsin increased radial component of force which tendsto separate the work from the tool thus promotingchatter.

(a) Both A and R are individually true and R is thecorrect explanation of A

(b) Both A and R are individually true but R is not thecorrect explanation of A

(c) A is true but R is false

(d) A is false but R is true

IES - 2001During manufacture of cement, the handling oflimestone is done by

(a) Belt conveyor

(b) Bucket conveyor

(c) Overhead crane

(d) Fork-lift crane

IES - 1999Transfer machines can be defined as

(a) Material processing machines

(b) Material handling machines

(c) Material processing and material handling machines

(d) Component feeders for automatic assembly

IES - 1998Which of the following joining processes are bestsuited for manufacturing pipes to carry gasproducts?

1. Riveting 2. Welding 3. Bolts and nuts.

Select the correct answer using the codes given below:

Codes:

(a) 1 and 2 (b) 1 and 3

(c) 2 alone (d) 1,2 and 3

IES - 1997Match List-I with List-II and select the correct answerusing the codes given below the Lists:

List-I List-II(Track numbers (Holes on those tracks represent)on paper tape )A. Track no. 1 to 4 1. AlphabetsB. Track no. 5 2. NumeralsC. Track no. 6 and 7 3. End of blockD. Track no. 8 4. Block number

5. Parity checkCode:A B C D A B C D

(a) 2 5 1 3 (b) 1 4 2 5(c) 2 4 1 3 (d) 1 5 2 3

IES - 1997Which one of the following refractory materials isrecommended for steel furnaces containing CaOslag?

(a) Alumina

(b) Silica

(c) Magnesia

(d) Fireclay

IES - 1994Which of the following pairs of process and draftare correctly matched?

1. Rolling……………….2

2. Extrusion…………… 50

3. Forging ……………..4

Select the correct answer using the codes given below:

Codes:

(a) 1, 2 and 3 (b) 1 and 2

(c) 1 and 3 (d) 2 and 3

IES - 1994Killed steels

(a) Have minimum impurity level

(b) Have almost zero percentage of phosphorus andsulphur

(c) Are produced by LD process

(d) Are free from oxygen

IES - 1992Dye penetrationmethod is generally used to locate

(a) Core defects

(b) Surface defects

(c) Superficial defects

(d) Temporary defects

IAS - 2001 Consider the following machining disadvantages:

1. Low metal removal rate

2. Poor surface finish

3. High tooling cost

(a) 1 and 3

(b) 1 and 2

(c) 2 and 3

(d) 1, 2 and 3

IAS - 2001For transporting materials over long distances withgreater speed, which one of the following devices ismost suitable?

(a) Motor vehicle

(b) Industrial vehicle

(c) Belt conveyor

(d) Roller conveyor

IAS - 1998Match List-I (Material handling equipments) with List-II (Application in a foundry) and select the correctanswer using the codes given below the lists:

List – I List-IIA. Belt conveyor 1. To move the compacted mould

boxesB. Monorail conveyor 2. To move the prepared

moulding sandC. Apron conveyor 3. To move the rough casting to

the fettling stationD. Roller conveyor 4. To transfer he molten metal

ladleCodes:A B C D A B C D

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

IAS - 19982000 cc. of air takes minutes to pass through astandard specimen of sand (5.08 cm high and 5.08cm in dia.). The manometer indicates pressure as5g/cm2. In this case the permeability number is

(a) 30

(b) 42

(c) 51

(d) 67

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2

IAS - 1997Elevators are used formoving materials

(a) Along fixed and horizontal paths

(b) In a vertical direction along a fixed path

(c) Along a horizontal path to any distance

(d) In both the planes

IAS - 1995 For moving materials is varying paths, the materialhandling equipments that is not suitable is

(a) Crane

(b) Conveyor

(c) Truck

(d) Hand trolley

IAS - 1994Consider the following situations

1. Loads are uniform

2. Materials move relatively continuously

3. Movement rate is variable

4. Routes do not vary

For material transportation, conveyors are used whenthe prevailing conditions include

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

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

IAS -