Thermit welding uses the following energy source.

Question

Thermit welding uses the following energy source.

A. Electrical energy

B. Chemical energy

C. Energy of high velocity electrons

D. Heat generated by friction

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Two wires of the same radius & material having length in the ratio of 1 : 2 are stretched by the same force. The strain produced in the two wires will be in the ratio of

A. 1 : 1

B. 1 : 2

C. 2 : 1

D. 1 : 4

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The concentration of (H⁺) ions is 4 x 10^-5 in a solution. Then pH of the solution will be (Given log 4 = 0.6)

A. 4.4

B. 5.6

C. 8.4

D. 2.4

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Spark plug is provided in a/an

A. Engine having carburettor

B. Diesel engine

C. Compression ignition engine

D. Both (B) & (C)

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Out of the following, the best material capable of withstanding shock & vibration without the danger of cracking is

A. Malleable iron

B. Grey cast iron

C. Chilled cast iron

D. White cast iron

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Which one of the following is incombustible?

A. H2

B. CCl4

C. C2H2

D. S

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On decreasing the grain size of a polycrystalline material, the property most likely to deteriorate is

A. Creep

B. Toughness

C. Tensile strength

D. Fatigue

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Work study deals with the __________ study.

A. Time

B. Motion

C. Both (A) & (B)

D. Neither (A) nor (B)

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Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________ kJ.

A. +4000

B. -4000

C. 10000

D. -10000

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A spring material should have low

A. Elastic limit

B. Deflection value

C. Fatigue resistance

D. None of these

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In inventory control theory, the economic order quantity (EOQ) is the

A. Lot size corresponding to break even analysis

B. Average level of inventory

C. Optimum lot size

D. None of these

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Triple point of water is

A. 0°F

B. 492°R

C. 0°K

D. -273°C

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Cemented carbide tools are not suitable for cutting

A. Aluminium

B. Brass

C. Cast iron

D. Steel

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Which of the following is an acidic constituent of B.F. slag?

A.

B. FeO

C. MgO

D. CaO

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The product (s) of roasting of a sulphide ore is (are)

A. Oxide only

B. Sulphate only

C. Oxide and sulphate

D. Dependent on temperature and partial pressure of oxygen & sulphur dioxide

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__________ remains constant during the adiabatic cooling of moist air.

A. Wet bulb temperature

B. Dry bulb temperature

C. Relative humidity

D. Specific humidity

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Powder metallurgy process does not make metal powder by

A. Atomisation

B. Grinding/milling

C. Hammering

D. Electrolytic deposition

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Coating provided on the electrodes used in the arc welding is not expected to

A. Add alloying elements

B. Prevent electrode from contamination

C. Stabilise the arc

D. Provide protective atmosphere to weld

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An abrupt and sudden fall in the reading of barometer is an indication of the

A. Storm

B. Rain

C. Clear weather

D. Cold wave

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__________ has a negative co-efficient of linear expansion.

A. Iron

B. Copper

C. Rubber

D. Nickel

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The diffusion co-efficient of Ni in Cu at 1000 K is 1.93 × 10^-16 m²S^-1 and it is 1.94 × 10^-14 m²S^{- 1} at 1200 K. The activation energy (in k. J.mole-1) for the diffusion of Ni in Cu is

A. 130

B. 180

C. 230

D. 250

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Which of the following fastening devices has a head at one end and a nut fitted to the other?

A. Bolt

B. Stud

C. Top bolt

D. None of these

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Capacity & power requirement for an air compressor working at high altitude compared to sealevel will be

A. More

B. Less

C. Same

D. Either more or less; depends on the climatic conditions

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Which of the following rays has the least wavelength?

A. Ultraviolet rays

B. Infrared rays

C. Cosmic rays

D. X-rays

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Neutrons are present in all atoms except that of

A. He

B. C

C. H

D. Ar

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The bank of tubes located at the back of the domestic refrigerators are the __________ tubes.

A. Refrigerant cooling

B. Evaporator

C. Condenser

D. Throttling

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Joining of thin foils is preferred to be done by

A. Gamma rays

B. X-rays

C. Microwaves

D. Gas welding

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In a forced draft cooling tower, water is cooled from 95 to 80°F by exposure to air with a wet bulb temperature of 70°F. In this case, the

A. Range is 15°F

B. Approach is 10°F

C. Both (A) & (B)

D. Neither (A) nor (B)

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The most detrimental impurity in high pressure boiler feed water is

A. Suspended salt

B. Dissolved salt

C. Silica

D. Turbidity

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Out of the following, the alloy which has equal percentage of constituents, is

A. White metal

B. Gun metal

C. Duralumin

D. Constantan

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The ratio of the shear stress to the principal stress on a principal plane is

A. 0

B. 1

C. 1/2

D. 1/3

Discuss this answer

Accepted Answer

B. Chemical energy

Thermit welding uses the following energy source.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Two wires of the same radius & material having length in the ratio of 1 : 2 are stretched by the same force. The strain produced in the two wires will be in the ratio of

The concentration of (H⁺) ions is 4 x 10^-5 in a solution. Then pH of the solution will be (Given log 4 = 0.6)

Spark plug is provided in a/an

Out of the following, the best material capable of withstanding shock & vibration without the danger of cracking is

Which one of the following is incombustible?

On decreasing the grain size of a polycrystalline material, the property most likely to deteriorate is

Work study deals with the __________ study.

Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________ kJ.

A spring material should have low

In inventory control theory, the economic order quantity (EOQ) is the

Triple point of water is

Cemented carbide tools are not suitable for cutting

Which of the following is an acidic constituent of B.F. slag?

The product (s) of roasting of a sulphide ore is (are)

__________ remains constant during the adiabatic cooling of moist air.

Powder metallurgy process does not make metal powder by

Coating provided on the electrodes used in the arc welding is not expected to

An abrupt and sudden fall in the reading of barometer is an indication of the

__________ has a negative co-efficient of linear expansion.

The diffusion co-efficient of Ni in Cu at 1000 K is 1.93 × 10^-16 m²S^-1 and it is 1.94 × 10^-14 m²S^{- 1} at 1200 K. The activation energy (in k. J.mole-1) for the diffusion of Ni in Cu is

Which of the following fastening devices has a head at one end and a nut fitted to the other?

Capacity & power requirement for an air compressor working at high altitude compared to sealevel will be

Which of the following rays has the least wavelength?

Neutrons are present in all atoms except that of

The bank of tubes located at the back of the domestic refrigerators are the __________ tubes.

Joining of thin foils is preferred to be done by

In a forced draft cooling tower, water is cooled from 95 to 80°F by exposure to air with a wet bulb temperature of 70°F. In this case, the

The most detrimental impurity in high pressure boiler feed water is

Out of the following, the alloy which has equal percentage of constituents, is

The ratio of the shear stress to the principal stress on a principal plane is

Also checkout

Thermit welding uses the following energy source.

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Two wires of the same radius & material having length in the ratio of 1 : 2 are stretched by the same force. The strain produced in the two wires will be in the ratio of

The concentration of (H+) ions is 4 x 10-5 in a solution. Then pH of the solution will be (Given log 4 = 0.6)

Spark plug is provided in a/an

Out of the following, the best material capable of withstanding shock & vibration without the danger of cracking is

Which one of the following is incombustible?

On decreasing the grain size of a polycrystalline material, the property most likely to deteriorate is

Work study deals with the __________ study.

Work required for compression of a gas contained in a cylinder is 7000 kJ. During compression, heat interaction of 3000 kJ causes the surroundings to be heated. Internal energy change of the gas during the compression is __________ kJ.

A spring material should have low

In inventory control theory, the economic order quantity (EOQ) is the

Triple point of water is

Cemented carbide tools are not suitable for cutting

Which of the following is an acidic constituent of B.F. slag?

The product (s) of roasting of a sulphide ore is (are)

__________ remains constant during the adiabatic cooling of moist air.

Powder metallurgy process does not make metal powder by

Coating provided on the electrodes used in the arc welding is not expected to

An abrupt and sudden fall in the reading of barometer is an indication of the

__________ has a negative co-efficient of linear expansion.

The diffusion co-efficient of Ni in Cu at 1000 K is 1.93 × 10-16 m2S-1 and it is 1.94 × 10-14 m2S- 1 at 1200 K. The activation energy (in k. J.mole-1) for the diffusion of Ni in Cu is

Which of the following fastening devices has a head at one end and a nut fitted to the other?

Capacity & power requirement for an air compressor working at high altitude compared to sealevel will be

Which of the following rays has the least wavelength?

Neutrons are present in all atoms except that of

The bank of tubes located at the back of the domestic refrigerators are the __________ tubes.

Joining of thin foils is preferred to be done by

In a forced draft cooling tower, water is cooled from 95 to 80°F by exposure to air with a wet bulb temperature of 70°F. In this case, the

The most detrimental impurity in high pressure boiler feed water is

Out of the following, the alloy which has equal percentage of constituents, is

The ratio of the shear stress to the principal stress on a principal plane is

Also checkout

The concentration of (H⁺) ions is 4 x 10^-5 in a solution. Then pH of the solution will be (Given log 4 = 0.6)

The diffusion co-efficient of Ni in Cu at 1000 K is 1.93 × 10^-16 m²S^-1 and it is 1.94 × 10^-14 m²S^{- 1} at 1200 K. The activation energy (in k. J.mole-1) for the diffusion of Ni in Cu is