FACTORIES AND BOILERS
FACTORIES AND BOILERS MCQs
1. Simplex method is the method used for :
(A) Value engineering (B) Network analysis
(C) Linear programming (D) Queuing theory
Ans: C
2. The combustion process in diesel engine is a :
(A) Constant volume process (B) Constant pressure process
(C) Constant temperature process (D) Adiabatic process
Ans: B
3. The aluminum alloy is used in cylinder blocks because :
(A) It is lighter and have good heat dissipation characteristics
(B) Material cost is low
(C) It does not require any cylinder lining
(D) The piston is also made of aluminum alloy
Ans: A
4. The connecting rod is attached to the piston by the :
(A) Cap bolt (B) Cap roller bearing
(C) Piston pin (D) Rod cap
Ans: C
5. In a diesel engine, the function of a fuel injector is to :
(A) Mix the fuel and air (B) Ignite the air fuel mixture
(C) Provide flame for ignition (D) Spray atomized fuel in the cylinder
Ans: D
(A) Value engineering (B) Network analysis
(C) Linear programming (D) Queuing theory
Ans: C
2. The combustion process in diesel engine is a :
(A) Constant volume process (B) Constant pressure process
(C) Constant temperature process (D) Adiabatic process
Ans: B
3. The aluminum alloy is used in cylinder blocks because :
(A) It is lighter and have good heat dissipation characteristics
(B) Material cost is low
(C) It does not require any cylinder lining
(D) The piston is also made of aluminum alloy
Ans: A
4. The connecting rod is attached to the piston by the :
(A) Cap bolt (B) Cap roller bearing
(C) Piston pin (D) Rod cap
Ans: C
5. In a diesel engine, the function of a fuel injector is to :
(A) Mix the fuel and air (B) Ignite the air fuel mixture
(C) Provide flame for ignition (D) Spray atomized fuel in the cylinder
Ans: D
6. Chemical milling operation is performed :
(A) On universal milling machine
(B) In a tank containing an etching solution
(C) On plain milling machine
(D) On broaching machine
Ans: B
7. PERT stands for :
(A) Programme Estimation and Reporting Technique
(B) Programme Estimation and Review Technique
(C) Programme Evaluation and Review Technique
(D) Planning Estimation and Resulting Technique
Ans: C
8. Which of the following wage incentive plan is applied to all workers ?
(A) Gantt plan (B) Halsey plan (C) Emerson’s plan (D) Rowan plan
Ans: B
9. Production cost refers to sum of Factory cost and ___________.
(A) Administrative overheads (B) Selling cost
(C) Distribution overheads (D) Direct material cost
Ans: A
10. Military organization is known as :
(A) Line organization (B) Functional organization
(C) Line and Staff organization (D) Line Staff and Functional organization
Ans: A
11. Gantt chart is used for :
(A) Inventory control (B) Material handling
(C) Production schedule (D) Machine repair schedule
Ans: C
12. In value engineering, imported consideration is given to :
(A) Cost reduction (B) Function concept
(C) Profit maximization (D) Customer satisfaction
Ans: A
(A) On universal milling machine
(B) In a tank containing an etching solution
(C) On plain milling machine
(D) On broaching machine
Ans: B
7. PERT stands for :
(A) Programme Estimation and Reporting Technique
(B) Programme Estimation and Review Technique
(C) Programme Evaluation and Review Technique
(D) Planning Estimation and Resulting Technique
Ans: C
8. Which of the following wage incentive plan is applied to all workers ?
(A) Gantt plan (B) Halsey plan (C) Emerson’s plan (D) Rowan plan
Ans: B
9. Production cost refers to sum of Factory cost and ___________.
(A) Administrative overheads (B) Selling cost
(C) Distribution overheads (D) Direct material cost
Ans: A
10. Military organization is known as :
(A) Line organization (B) Functional organization
(C) Line and Staff organization (D) Line Staff and Functional organization
Ans: A
11. Gantt chart is used for :
(A) Inventory control (B) Material handling
(C) Production schedule (D) Machine repair schedule
Ans: C
12. In value engineering, imported consideration is given to :
(A) Cost reduction (B) Function concept
(C) Profit maximization (D) Customer satisfaction
Ans: A
13. The temperature at which the new grains are formed in the metal is called :
(A) Lower critical temperature (B) Upper critical temperature
(C) Eutectic temperature (D) Re-crystallization temperature
Ans: D
14. Discontinuous chips are formed during machining of :
(A) Brittle metals (B) Ductile metals (C) Hard metals (D) Soft metals
Ans: A
15. In a centre lathe, the cutting tool is fed in __________ with reference to the lathe axis.
(A) Cross direction only
(B) Longitudinal direction only
(C) Both cross and longitudinal direction
(D) Any direction
Ans: C
16. The chamfering is an operation of :
(A) Embossing a diamond shaped pattern on the surface of the work piece
(B) Enlarging the diameter of a hole cylindrically
(C) Reducing the diameter of a work piece
(D) Beveling the extreme end of a work piece
Ans: D
17. In drilling operation, the metal is removed by :
(A) Shearing (B) Extrusion
(C) Shearing and extrusion (D) Shearing and compression
Ans: C
18. The grinding operation is a :
(A) Shaping operation (B) Surface finishing operation
(C) Forming operation (D) Dressing operation
Ans: B
19. A process of removing metal by pushing or pulling a cutting tool is called :
(A) Up milling (B) Down milling (C) Forming (D) Broaching
Ans: D
20. In ultrasonic machining, the metal is removed by :
(A) Using abrasive slurry between the tool and work
(B) Direct contact of tool with the work
(C) By using an electrolyte between work and tool
(D) Spark erosion between the tool and work
Ans: A
(A) Lower critical temperature (B) Upper critical temperature
(C) Eutectic temperature (D) Re-crystallization temperature
Ans: D
14. Discontinuous chips are formed during machining of :
(A) Brittle metals (B) Ductile metals (C) Hard metals (D) Soft metals
Ans: A
15. In a centre lathe, the cutting tool is fed in __________ with reference to the lathe axis.
(A) Cross direction only
(B) Longitudinal direction only
(C) Both cross and longitudinal direction
(D) Any direction
Ans: C
16. The chamfering is an operation of :
(A) Embossing a diamond shaped pattern on the surface of the work piece
(B) Enlarging the diameter of a hole cylindrically
(C) Reducing the diameter of a work piece
(D) Beveling the extreme end of a work piece
Ans: D
17. In drilling operation, the metal is removed by :
(A) Shearing (B) Extrusion
(C) Shearing and extrusion (D) Shearing and compression
Ans: C
18. The grinding operation is a :
(A) Shaping operation (B) Surface finishing operation
(C) Forming operation (D) Dressing operation
Ans: B
19. A process of removing metal by pushing or pulling a cutting tool is called :
(A) Up milling (B) Down milling (C) Forming (D) Broaching
Ans: D
20. In ultrasonic machining, the metal is removed by :
(A) Using abrasive slurry between the tool and work
(B) Direct contact of tool with the work
(C) By using an electrolyte between work and tool
(D) Spark erosion between the tool and work
Ans: A
21. The term modular ratio of the two materials is ratio of __________.
(A) linear stress to lateral stress (B) their modulus of rigidities
(C) their modulus of elasticities (D) shear stress to shear strain
Ans: C
22. A bolt is made to pass through a tube, both ends of them are tightly fitted with the help of washer and nuts. If the nut is tightened :
(A) Bolt is under tension and tube is under compression
(B) Bolt is under compression and tube is under tension
(C) Bolt and tube are under tension
(D) Bolt and tube are under compression
Ans: A
23. When a force is acting on a body through axially, the strain developed in the perpendicular direction of the force is known as :
(A) Linear strain (B) Lateral strain (C) Shear strain (D) Volumetric strain
Ans: B
24. A cantilever beam is loaded with point load at free end, the bending moment at the free end is :
(A) Zero (B) Maximum (C) Minimum (D) Unity
Ans: A
25. The shape of bending moment diagram for a simply supported beam loaded in its center is :
(A) A rectangle (B) An equilateral triangle
(C) A right angled triangle (D) An isosceles triangle
Ans: D
26. A ring gauge is used to :
(A) Check the diameter of shaft or studs
(B) Test the accuracy of holes
(C) Check the clearance between two mating surfaces
(D) Check thickness of sheet
Ans: A
(A) linear stress to lateral stress (B) their modulus of rigidities
(C) their modulus of elasticities (D) shear stress to shear strain
Ans: C
22. A bolt is made to pass through a tube, both ends of them are tightly fitted with the help of washer and nuts. If the nut is tightened :
(A) Bolt is under tension and tube is under compression
(B) Bolt is under compression and tube is under tension
(C) Bolt and tube are under tension
(D) Bolt and tube are under compression
Ans: A
23. When a force is acting on a body through axially, the strain developed in the perpendicular direction of the force is known as :
(A) Linear strain (B) Lateral strain (C) Shear strain (D) Volumetric strain
Ans: B
24. A cantilever beam is loaded with point load at free end, the bending moment at the free end is :
(A) Zero (B) Maximum (C) Minimum (D) Unity
Ans: A
25. The shape of bending moment diagram for a simply supported beam loaded in its center is :
(A) A rectangle (B) An equilateral triangle
(C) A right angled triangle (D) An isosceles triangle
Ans: D
26. A ring gauge is used to :
(A) Check the diameter of shaft or studs
(B) Test the accuracy of holes
(C) Check the clearance between two mating surfaces
(D) Check thickness of sheet
Ans: A
27. The object of caulking in a riveted joint is to make the joint :
(A) Free from stresses (B) Free from corrosion
(C) Leak proof (D) To prevent crack
Ans: C
28. A column that fails due to direct stress only is called :
(A) Short column (B) Long column (C) Weak column (D) Medium column
Ans: A
29. Lame’s theory is associated with :
(A) Thin cylindrical shells (B) Thick cylindrical shells
(C) Direct and bending stresses (D) Torsion of shafts
Ans: B
30. The value of compressive strength of a brittle material is ___________ its tensile strength.
(A) equal to (B) greater than (C) less than (D) reciprocal of
Ans: B
31. The variation in the volume of a liquid with variation of pressure is called its :
(A) Surface tension (B) Compressibility (C) Capillarity (D) Viscosity
Ans: B
32. A Pitot tube is used to measure the :
(A) velocity of flow at the required point in a pipe
(B) pressure difference between two points in a pipe
(C) total pressure of liquid flowing in a pipe
(D) discharge through a pipe
Ans: A
33. Coefficient of contraction is the ratio of :
(A) Actual velocity of jet at vena contracta to theoretical velocity
(B) Loss of head in the orifice to the head of water available at the exit of the orifice
(C) Actual discharge through an orifice to the theoretical discharge
(D) Area of jet at vena cotracta to the area of orifice
Ans: D
34. An orifice is said to be large if :
(A) The size of orifice is large
(B) The velocity of flow is large
(C) The available head of liquid is more than five times the diameter of orifice
(D) The available head of liquid is less than five times the diameter of orifice
Ans: D
(A) Free from stresses (B) Free from corrosion
(C) Leak proof (D) To prevent crack
Ans: C
28. A column that fails due to direct stress only is called :
(A) Short column (B) Long column (C) Weak column (D) Medium column
Ans: A
29. Lame’s theory is associated with :
(A) Thin cylindrical shells (B) Thick cylindrical shells
(C) Direct and bending stresses (D) Torsion of shafts
Ans: B
30. The value of compressive strength of a brittle material is ___________ its tensile strength.
(A) equal to (B) greater than (C) less than (D) reciprocal of
Ans: B
31. The variation in the volume of a liquid with variation of pressure is called its :
(A) Surface tension (B) Compressibility (C) Capillarity (D) Viscosity
Ans: B
32. A Pitot tube is used to measure the :
(A) velocity of flow at the required point in a pipe
(B) pressure difference between two points in a pipe
(C) total pressure of liquid flowing in a pipe
(D) discharge through a pipe
Ans: A
33. Coefficient of contraction is the ratio of :
(A) Actual velocity of jet at vena contracta to theoretical velocity
(B) Loss of head in the orifice to the head of water available at the exit of the orifice
(C) Actual discharge through an orifice to the theoretical discharge
(D) Area of jet at vena cotracta to the area of orifice
Ans: D
34. An orifice is said to be large if :
(A) The size of orifice is large
(B) The velocity of flow is large
(C) The available head of liquid is more than five times the diameter of orifice
(D) The available head of liquid is less than five times the diameter of orifice
Ans: D
35. An opening in the side of a tank or vessel such that the liquid surface with the tank is below
the top edge of the opening is called :
(A) Weir (B) Notch (C) Orifice (D) Pipe flow
Ans: B
36. Reynolds number is the ratio of the inertia force to the :
(A) Surface tension force (B) Viscous force
(C) Gravity force (D) Elastic force
Ans: B
37. Which of the following pumps is suitable for small discharge and high heads ?
(A) Centrifugal pump (B) Axial flow pump
(C) Mixed flow pump (D) Reciprocating pump
Ans: D
38. Which of the following hydraulic units works on the principle of Pascal’s law ?
(A) Air lift pump (B) Jet pump
(C) Hydraulic coupling (D) Hydraulic press
Ans: D
39. A hydraulic ram is a device used to :
(A) Store the energy of water
(B) Increase the pressure of water
(C) To lift small quantity of water to greater height
(D) To lift water from deep well
Ans: C
40. The amount of heat required to raise the temperature of __________ water through one degree is called Kilo Joule.
(A) 1 gram (B) 10 gram (C) 100 gram (D) 1000 gram
Ans: D
41. The sum of internal energy and the product of pressure and volume is known as :
(A) Work done (B) Entropy (C) Enthalpy (D) External energy
Ans: C
42. The heat energy stored in the gas and used for raising the temperature of the gas is known as :
(A) Heat energy (B) Internal energy (C) Kinetic energy (D) Molecular energy
Ans: B
43. The hyper bolic process is governed by :
(A) Boyle’s Law (B) Charles’ Law
(C) Gay-Lussac’s Law (D) Avogadro’s Law
Ans: A
the top edge of the opening is called :
(A) Weir (B) Notch (C) Orifice (D) Pipe flow
Ans: B
36. Reynolds number is the ratio of the inertia force to the :
(A) Surface tension force (B) Viscous force
(C) Gravity force (D) Elastic force
Ans: B
37. Which of the following pumps is suitable for small discharge and high heads ?
(A) Centrifugal pump (B) Axial flow pump
(C) Mixed flow pump (D) Reciprocating pump
Ans: D
38. Which of the following hydraulic units works on the principle of Pascal’s law ?
(A) Air lift pump (B) Jet pump
(C) Hydraulic coupling (D) Hydraulic press
Ans: D
39. A hydraulic ram is a device used to :
(A) Store the energy of water
(B) Increase the pressure of water
(C) To lift small quantity of water to greater height
(D) To lift water from deep well
Ans: C
40. The amount of heat required to raise the temperature of __________ water through one degree is called Kilo Joule.
(A) 1 gram (B) 10 gram (C) 100 gram (D) 1000 gram
Ans: D
41. The sum of internal energy and the product of pressure and volume is known as :
(A) Work done (B) Entropy (C) Enthalpy (D) External energy
Ans: C
42. The heat energy stored in the gas and used for raising the temperature of the gas is known as :
(A) Heat energy (B) Internal energy (C) Kinetic energy (D) Molecular energy
Ans: B
43. The hyper bolic process is governed by :
(A) Boyle’s Law (B) Charles’ Law
(C) Gay-Lussac’s Law (D) Avogadro’s Law
Ans: A
44. The compression ratio is the ratio of :
(A) Swept volume to Total volume
(B) Total volume to Swept volume
(C) Swept volume to Clearance volume
(D) Total volume to Clearance volume
Ans: D
45. The compression ratio for petrol engine is :
(A) 3 to 6 (B) 5 to 8 (C) 15 to 20 (D) 20 to 30
Ans: B
46. A thermodynamic cycle consisting of, one constant pressure, one constant volume and two isentropic process is known as :
(A) Carnot Cycle (B) Sterling Cycle (C) Otto Cycle (D) Diesel Cycle
Ans: D
47. The instrument which has all the features of try-square, bevel protractor, ruler and scriber is :
(A) Outside micrometer (B) Combination set
(C) Inside micrometer (D) Depth gauge micrometer
Ans: B
48. The thermodynamic property like temperature is measured on basis of :
(A) Zeroth law of thermodynamics (B) First law of thermodynamic
(C) Second law of thermodynamics (D) Third law of thermodynamics
Ans: A
49. Which of the following is a water tube boiler ?
(A) Lancashire boiler (B) Babcock and Wilcox boiler
(C) Locomotive boiler (D) Cochran boiler
Ans: B
50. An economizer is installed in a boiler primarily to :
(A) Super heat the steam (B) Reduce the fuel consumption
(C) Increase the steam pressure (D) Indicate steam level
Ans: B
51. The actual power generated in the engine cylinder is called :
(A) Brake power (B) Indicated power
(C) Frictional power (D) Thermal power
Ans: B
52. The energy conversion takes place in steam nozzle is :
(A) Heat energy of steam into Kinetic energy
(B) Kinetic energy of steam into Heat energy
(C) Heat energy of steam into Potential energy
(D) Potential energy of steam into Heat energy
Ans: A
(A) Swept volume to Total volume
(B) Total volume to Swept volume
(C) Swept volume to Clearance volume
(D) Total volume to Clearance volume
Ans: D
45. The compression ratio for petrol engine is :
(A) 3 to 6 (B) 5 to 8 (C) 15 to 20 (D) 20 to 30
Ans: B
46. A thermodynamic cycle consisting of, one constant pressure, one constant volume and two isentropic process is known as :
(A) Carnot Cycle (B) Sterling Cycle (C) Otto Cycle (D) Diesel Cycle
Ans: D
47. The instrument which has all the features of try-square, bevel protractor, ruler and scriber is :
(A) Outside micrometer (B) Combination set
(C) Inside micrometer (D) Depth gauge micrometer
Ans: B
48. The thermodynamic property like temperature is measured on basis of :
(A) Zeroth law of thermodynamics (B) First law of thermodynamic
(C) Second law of thermodynamics (D) Third law of thermodynamics
Ans: A
49. Which of the following is a water tube boiler ?
(A) Lancashire boiler (B) Babcock and Wilcox boiler
(C) Locomotive boiler (D) Cochran boiler
Ans: B
50. An economizer is installed in a boiler primarily to :
(A) Super heat the steam (B) Reduce the fuel consumption
(C) Increase the steam pressure (D) Indicate steam level
Ans: B
51. The actual power generated in the engine cylinder is called :
(A) Brake power (B) Indicated power
(C) Frictional power (D) Thermal power
Ans: B
52. The energy conversion takes place in steam nozzle is :
(A) Heat energy of steam into Kinetic energy
(B) Kinetic energy of steam into Heat energy
(C) Heat energy of steam into Potential energy
(D) Potential energy of steam into Heat energy
Ans: A
53. The thermodynamic cycle on which the petrol engine works :
(A) Joule Cycle (B) Rankine Cycle (C) Otto Cycle (D) Sterling Cycle
Ans: C
54. The air-fuel ratio of the petrol engine is controlled by :
(A) Injector (B) Governor (C) Spark plug (D) Carburettor
Ans: D
55. The unit of thermal diffusivity is :
(A) m/hK (B) m/h (C) m2/h (D) m2/hK
Ans: C
56. The automobile radiator is a heat exchanger of :
(A) Parallel flow type (B) Counter flow type
(C) Cross flow type (D) Regenerator type
Ans: C
57. Bell-Coleman cycle is a :
(A) Reversed Joule cycle (B) Reversed Otto cycle
(C) Reversed Rankine cycle (D) Reversed Carnot cycle
Ans: A
58. The lead screw of a lathe with nut form a __________ pair.
(A) Rolling pair (B) Sliding pair (C) Screw pair (D) Turning pair
Ans: C
59. V-belts are usually used for :
(A) Long drives (B) Short drives
(C) Long and short drives (D) Sprocket drives
Ans: B
60. The ratio of the number of teeth to pitch circle diameter in millimeter is called :
(A) Circular pitch (B) Module
(C) Diametrical pitch (D) Addendum
Ans: C
61. Which of the following is the function of a washer ?
(A) Fill up the axial gap (B) Provide cushioning effect
(C) Provide bearing area (D) Absorb shocks and vibrations
Ans: C
62. A bolt is designed on the basis of __________ with a large factor of safety.
(A) Direct tensile stress (B) Direct compressive stress
(C) Direct bending stress (D) Direct shear stress
Ans: A
(A) Joule Cycle (B) Rankine Cycle (C) Otto Cycle (D) Sterling Cycle
Ans: C
54. The air-fuel ratio of the petrol engine is controlled by :
(A) Injector (B) Governor (C) Spark plug (D) Carburettor
Ans: D
55. The unit of thermal diffusivity is :
(A) m/hK (B) m/h (C) m2/h (D) m2/hK
Ans: C
56. The automobile radiator is a heat exchanger of :
(A) Parallel flow type (B) Counter flow type
(C) Cross flow type (D) Regenerator type
Ans: C
57. Bell-Coleman cycle is a :
(A) Reversed Joule cycle (B) Reversed Otto cycle
(C) Reversed Rankine cycle (D) Reversed Carnot cycle
Ans: A
58. The lead screw of a lathe with nut form a __________ pair.
(A) Rolling pair (B) Sliding pair (C) Screw pair (D) Turning pair
Ans: C
59. V-belts are usually used for :
(A) Long drives (B) Short drives
(C) Long and short drives (D) Sprocket drives
Ans: B
60. The ratio of the number of teeth to pitch circle diameter in millimeter is called :
(A) Circular pitch (B) Module
(C) Diametrical pitch (D) Addendum
Ans: C
61. Which of the following is the function of a washer ?
(A) Fill up the axial gap (B) Provide cushioning effect
(C) Provide bearing area (D) Absorb shocks and vibrations
Ans: C
62. A bolt is designed on the basis of __________ with a large factor of safety.
(A) Direct tensile stress (B) Direct compressive stress
(C) Direct bending stress (D) Direct shear stress
Ans: A
63. The size of a gear is usually specified by :
(A) Pressure angle (B) Diametrical pitch
(C) Circular pitch (D) Pitch circle diameter
Ans: D
64. The fuel used in a blast furnace is :
(A) Coal (B) Coke (C) Wood (D) Producer gas
Ans: B
65. The machinability of steel is improved by adding :
(A) Nickel (B) Chromium
(C) Nickel and Chromium (D) Sulphur, Lead and Phosphorus
Ans: D
66. Age hardening is related to :
(A) Duralumin (B) Brass (C) Copper (D) Silver
Ans: A
67. Monel metal is an alloy of :
(A) Nickel and Chromium (B) Copper and Chromium
(C) Nickel and Copper (D) Nickel, Chromium and Iron
Ans: C
68. A mortise gauge is a :
(A) Striking tool (B) Plaining tool (C) Boring tool (D) Marking tool
Ans: D
69. Riddle is used for :
(A) Smoothing and cleaning out depression in the mould
(B) Cleaning the moulding sand
(C) Moistening the sand around the edge before removing pattern
(D) Reinforcement of sand in the top part of moulding box
Ans: B
70. The fullers are used :
(A) For finishing flat surfaces (B) For necking down a piece of work
(C) For punching a hole (D) To finish the punched hole
Ans: B
71. The operation of cutting a sheet of metal in a straight line along a length is known as :
(A) Plunging (B) Notching (C) Slitting (D) Forming
Ans: C
(A) Pressure angle (B) Diametrical pitch
(C) Circular pitch (D) Pitch circle diameter
Ans: D
64. The fuel used in a blast furnace is :
(A) Coal (B) Coke (C) Wood (D) Producer gas
Ans: B
65. The machinability of steel is improved by adding :
(A) Nickel (B) Chromium
(C) Nickel and Chromium (D) Sulphur, Lead and Phosphorus
Ans: D
66. Age hardening is related to :
(A) Duralumin (B) Brass (C) Copper (D) Silver
Ans: A
67. Monel metal is an alloy of :
(A) Nickel and Chromium (B) Copper and Chromium
(C) Nickel and Copper (D) Nickel, Chromium and Iron
Ans: C
68. A mortise gauge is a :
(A) Striking tool (B) Plaining tool (C) Boring tool (D) Marking tool
Ans: D
69. Riddle is used for :
(A) Smoothing and cleaning out depression in the mould
(B) Cleaning the moulding sand
(C) Moistening the sand around the edge before removing pattern
(D) Reinforcement of sand in the top part of moulding box
Ans: B
70. The fullers are used :
(A) For finishing flat surfaces (B) For necking down a piece of work
(C) For punching a hole (D) To finish the punched hole
Ans: B
71. The operation of cutting a sheet of metal in a straight line along a length is known as :
(A) Plunging (B) Notching (C) Slitting (D) Forming
Ans: C
72. Acetylene gas is stored in the cylinder in :
(A) Solid form (B) Gaseous form (C) Liquid form (D) Jelly form
Ans: C
73. A neutral flame is obtained by supplying :
(A) Equal volume of oxygen and acetylene
(B) More volume of oxygen and less volume of acetylene
(C) More volume of acetylene and less volume of oxygen
(D) Equal volume of oxygen and hydrogen
Ans: A
74. Galvanizing is the process of :
(A) Zinc diffusion process
(B) Making thin phosphate coating on steel
(C) Making thin copper coating on steel
(D) Making thin zinc coating by hot dipping
Ans: D
75. The cross-section of a chisel is usually :
(A) Rectangular (B) Square (C) Hexagonal (D) Octagonal
Ans: D
76. The type of file used for a wood work is :
(A) Single cut file (B) Double cut file (C) Rasp cut file (D) Smooth cut file
Ans: C
(A) Solid form (B) Gaseous form (C) Liquid form (D) Jelly form
Ans: C
73. A neutral flame is obtained by supplying :
(A) Equal volume of oxygen and acetylene
(B) More volume of oxygen and less volume of acetylene
(C) More volume of acetylene and less volume of oxygen
(D) Equal volume of oxygen and hydrogen
Ans: A
74. Galvanizing is the process of :
(A) Zinc diffusion process
(B) Making thin phosphate coating on steel
(C) Making thin copper coating on steel
(D) Making thin zinc coating by hot dipping
Ans: D
75. The cross-section of a chisel is usually :
(A) Rectangular (B) Square (C) Hexagonal (D) Octagonal
Ans: D
76. The type of file used for a wood work is :
(A) Single cut file (B) Double cut file (C) Rasp cut file (D) Smooth cut file
Ans: C