Brazing is the joining of metals

Question

Brazing is the joining of metals

A. Without melting the base metal

B. With a non-ferrous filler

C. Both (A) & (B)

D. Neither (A) nor (B)

Share this question with your friends

Show all Chemical Engineering Basics MCQ

Comment

Which of the following commonly used condenser tube materials has the lowest thermal conductivity?

A. Admiralty brass

B. Stainless steel

C. Aluminium brass

D. Titanium

Discuss this answer

Which of the following is an unconventional source of energy?

A. Thermal power

B. Hydroelectric power

C. Nuclear-fusion power

D. Solar power

Discuss this answer

Dislocation cross-slip is difficult in those materials, which have

A. Large number of slip systems

B. High work hardening rate

C. Coarse grain size

D. Low stacking fault energy

Discuss this answer

Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m² .k), when the insulation thickness is __________ mm.

A. 15

B. 25

C. 10

D. 30

Discuss this answer

The most important consideration in value engineering is the

A. Profit maximisation

B. Customer satisfaction

C. Cost reduction

D. Process improvement

Discuss this answer

Oxygen cylinders used for autogenous (cutting/welding) purposes are

A. Seamless & made of steel

B. Heat treated before use

C. Made by sand casting

D. Welded steel cylinders

Discuss this answer

Temperature of hot gases flowing in a pipe is measured by a thermocouple inserted in the thermal well. The thermal well made of __________ will facilitate the most accurate measurement of the temperature.

A. Copper

B. Steel

C. Aluminium

D. Brass

Discuss this answer

Which of the following are made out of the carbon steel having carbon content of 0.9 to 1%?

A. Small punches, broaches reamers and springs

B. Cutlery, screws, rivets and files

C. Mandrels, twist drills, small lathe tools and razors

D. Forgings like can shaft, structural steel plate, threading dies and drawing dies

Discuss this answer

The majority charge carriers in p-type silicon are

A. Free electrons

B. Ions

C. Conduction electrons

D. Holes

Discuss this answer

__________ property of steel increases by addition of large amount of silicon in it.

A. Mechanical

B. Machining

C. Magnetic

D. Refractory

Discuss this answer

Shrinkage allowance on pattern is provided to compensate for shrinkage when the

A. Metal changes from liquid state to solid state at freezing temperature

B. Solid phase temperature drops from freezing temperature to the room temperature

C. Liquid metal temperature drops from pouring temperature to room temperature

D. Liquid metal temperature drops from pouring temperature to freezing temperature

Discuss this answer

A spring material should have low

A. Elastic limit

B. Deflection value

C. Fatigue resistance

D. None of these

Discuss this answer

Lead is poured into the joints between two __________ pipes.

A. Cast iron

B. Steel

C. Concrete

D. Plastic

Discuss this answer

Which of the following varies as the square root of oil pressure during atomisation of fuel oil through a pressure jet burner?

A. Output & fineness

B. Velocity

C. Both (A) & (B)

D. None of these

Discuss this answer

The two elements required to form substitutional solid solution should not have

A. Same crystalline structure

B. Same valency

C. Widely differing electronegativity

D. Same atomic sizes

Discuss this answer

Friction factor for fluid flow in pipe does not depend upon the

A. Pipe length

B. Pipe roughness

C. Fluid density & viscosity

D. Mass flow rate of fluid

Discuss this answer

__________ furnace is generally used in the non-ferrous foundries.

A. Direct arc

B. Indirect arc

C. Resistance

D. Induction

Discuss this answer

Resilience of a bolt can be increased by increasing its

A. Length

B. Shank diameter

C. Head diameter

D. None of these

Discuss this answer

A metal having a Poisson's ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal strain = 0.8, then the magnitude of thickness strain is

A. -0.8

B. 0.8

C. +0.08

D. -0.24

Discuss this answer

Which of the following mainly decides the current to be employed is arc welding?

A. Electrode size

B. Plate thickness

C. Voltage across the arc

D. Welded portion length

Discuss this answer

Air/fuel ratio by weight for combustion of methane with theoretical quantity of air will be about

A. 9 : 1

B. 17 : 1

C. 23 : 1

D. 29 : 1

Discuss this answer

One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C). If the thermal conductivity of furnace wall is 3 W. m^{- 1}. k^-1 and the wall thickness is 0.3 m, the maximum heat loss (in W/m) is

A. 100

B. 900

C. 9000

D. 10000

Discuss this answer

If Reynolds number is greater than 1, then the

A. Viscous force is larger than the inertia force

B. Inertia force is larger than the viscous force

C. Inertia force is larger than the surface tension force

D. Inertia force is larger than the gravitational force

Discuss this answer

Density in the solid state is slightly less than that in its liquid state, in case of

A. Carbon dioxide

B. Water

C. Mercury

D. None of these

Discuss this answer

Melting point & boiling points of liquid oxygen are respectively - 218.8°C & - 183°C, while the same for liquid nitrogen is - 210°C & - 195.8°C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8

A. °C

B. °F

C. °K

D. °R

Discuss this answer

The materials which fracture even at small strains are termed as brittle, while those materials which exhibit an appreciable deformation before failure are termed as

A. Rigid

B. Tough

C. Ductile

D. Plastic

Discuss this answer

Elimination of brittleness resulting from welding of saw blades is done by __________ of the welded portion.

A. Annealing

B. Toughening

C. Work hardening

D. Tempering

Discuss this answer

Two solutions A1 & A2 have pH value of 2 & 6 respectively. It implies that the solution

A. A₁ is more alkaline than solution A₂

B. A₁ is highly acidic

C. A₂ is very slightly acidic

D. Both (B) & (C)

Discuss this answer

Hot extrusion of aluminium is done in the temperature range of __________ °C.

A. 550-600

B. 450-500

C. 350-400

D. 250-300

Discuss this answer

Hydro-cyclone is a

A. Crusher

B. wet classifier

C. Dry classifier

D. Magnetic separator

Discuss this answer

Accepted Answer

C. Both (A) & (B)

Brazing is the joining of metals

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Which of the following commonly used condenser tube materials has the lowest thermal conductivity?

Which of the following is an unconventional source of energy?

Dislocation cross-slip is difficult in those materials, which have

Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m² .k), when the insulation thickness is __________ mm.

The most important consideration in value engineering is the

Oxygen cylinders used for autogenous (cutting/welding) purposes are

Temperature of hot gases flowing in a pipe is measured by a thermocouple inserted in the thermal well. The thermal well made of __________ will facilitate the most accurate measurement of the temperature.

Which of the following are made out of the carbon steel having carbon content of 0.9 to 1%?

The majority charge carriers in p-type silicon are

__________ property of steel increases by addition of large amount of silicon in it.

Shrinkage allowance on pattern is provided to compensate for shrinkage when the

A spring material should have low

Lead is poured into the joints between two __________ pipes.

Which of the following varies as the square root of oil pressure during atomisation of fuel oil through a pressure jet burner?

The two elements required to form substitutional solid solution should not have

Friction factor for fluid flow in pipe does not depend upon the

__________ furnace is generally used in the non-ferrous foundries.

Resilience of a bolt can be increased by increasing its

A metal having a Poisson's ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal strain = 0.8, then the magnitude of thickness strain is

Which of the following mainly decides the current to be employed is arc welding?

Air/fuel ratio by weight for combustion of methane with theoretical quantity of air will be about

One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C). If the thermal conductivity of furnace wall is 3 W. m^{- 1}. k^-1 and the wall thickness is 0.3 m, the maximum heat loss (in W/m) is

If Reynolds number is greater than 1, then the

Density in the solid state is slightly less than that in its liquid state, in case of

Melting point & boiling points of liquid oxygen are respectively - 218.8°C & - 183°C, while the same for liquid nitrogen is - 210°C & - 195.8°C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8

The materials which fracture even at small strains are termed as brittle, while those materials which exhibit an appreciable deformation before failure are termed as

Elimination of brittleness resulting from welding of saw blades is done by __________ of the welded portion.

Two solutions A1 & A2 have pH value of 2 & 6 respectively. It implies that the solution

Hot extrusion of aluminium is done in the temperature range of __________ °C.

Hydro-cyclone is a

Also checkout

Brazing is the joining of metals

Correct Answer :

Show all Chemical Engineering Basics MCQ

Related Questions

Which of the following commonly used condenser tube materials has the lowest thermal conductivity?

Which of the following is an unconventional source of energy?

Dislocation cross-slip is difficult in those materials, which have

Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m2 .k), when the insulation thickness is __________ mm.

The most important consideration in value engineering is the

Oxygen cylinders used for autogenous (cutting/welding) purposes are

Temperature of hot gases flowing in a pipe is measured by a thermocouple inserted in the thermal well. The thermal well made of __________ will facilitate the most accurate measurement of the temperature.

Which of the following are made out of the carbon steel having carbon content of 0.9 to 1%?

The majority charge carriers in p-type silicon are

__________ property of steel increases by addition of large amount of silicon in it.

Shrinkage allowance on pattern is provided to compensate for shrinkage when the

A spring material should have low

Lead is poured into the joints between two __________ pipes.

Which of the following varies as the square root of oil pressure during atomisation of fuel oil through a pressure jet burner?

The two elements required to form substitutional solid solution should not have

Friction factor for fluid flow in pipe does not depend upon the

__________ furnace is generally used in the non-ferrous foundries.

Resilience of a bolt can be increased by increasing its

A metal having a Poisson's ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal strain = 0.8, then the magnitude of thickness strain is

Which of the following mainly decides the current to be employed is arc welding?

Air/fuel ratio by weight for combustion of methane with theoretical quantity of air will be about

One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C). If the thermal conductivity of furnace wall is 3 W. m- 1. k-1 and the wall thickness is 0.3 m, the maximum heat loss (in W/m) is

If Reynolds number is greater than 1, then the

Density in the solid state is slightly less than that in its liquid state, in case of

Melting point & boiling points of liquid oxygen are respectively - 218.8°C & - 183°C, while the same for liquid nitrogen is - 210°C & - 195.8°C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8

The materials which fracture even at small strains are termed as brittle, while those materials which exhibit an appreciable deformation before failure are termed as

Elimination of brittleness resulting from welding of saw blades is done by __________ of the welded portion.

Two solutions A1 & A2 have pH value of 2 & 6 respectively. It implies that the solution

Hot extrusion of aluminium is done in the temperature range of __________ °C.

Hydro-cyclone is a

Also checkout

Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m² .k), when the insulation thickness is __________ mm.

One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C). If the thermal conductivity of furnace wall is 3 W. m^{- 1}. k^-1 and the wall thickness is 0.3 m, the maximum heat loss (in W/m) is