2018 FEBRUARY MECHANIC MOTOR VEHICLE THEORY SEMESTER - I

2018  FEBRUARY MECHANIC MOTOR VEHICLE  THEORY  SEMESTER - I

1.      What is first aid?

a)  Completing a primary survey

b)  The first help given to injured

c)  Assessment of loss

d)  Treating an injured

Answer:- b)  The first help given to injured

2. The following is indirect cost

    of accident: -

a)  Money paid for treatment

b)  Compensation

c)  Cost of lost time of injured

d)  All of these

Answer:- c)  Cost of lost time of injured

3. Class - A fire consists of fire

    due to: -

a)  Wood

b)  Oil

c)  Transformer

d)  Chemical

Answer:- a)  Wood

4. Minimum reading taken by

    micrometer screw gauge is: -
a)  0.1 cm

b)  0.01 mm

c)  0.1 mm

d)  0.01 m

Answer:- b)  0.01 mm

5. Which of the following is hardest

    material?

a) Copper

b) Ceramics

c) Steel

d) Diamond

Answer:- d) Diamond

6. File used for wood work is: -

a) Single cut file .

b) Double cut file

c) Rasp cut file

d) None of these

Answer:- c) Rasp cut file

7. What is mean by the rate of

     flow of an electric charge?

a) Electric current

b) Electric potential

c) Electric resistance

d) None of these

Answer:- a) Electric current

8. Which type of nut prevents

slipping while tightening?

a) Square nut

 b) Hexagonal nut

c) Castle nut

d) None of these

Answer:- b) Hexagonal nut

9. Annealing improves: -

a) Grain size

c) Electrical properties

b) Mechanical properties
d) All of these

Answer:- d) All of these

10. Which of the following

joints have high corrosion resistance?
a) Welded joint

b) Riveted joint

c) Bolted joint

d) None of these

Answer:- a) Welded joint

11. An "n" type semiconductor is: -

a) Positively charged

b) Negatively charged

c) Electrically neutral

d) None of these

Answer:- c) Electrically neutral

12. The positive plates of nickel

 iron cell is made by:

a) Nickel hydroxide

b) Lead peroxide

c) Ferrous hydroxide

d) Potassium hydroxide

Answer:- a) Nickel hydroxide

13. Which one is best suited to

extinguishing oil or flammable

 liquid fire?
a) Soda acid

b) Vaporizing liquid

c) Foam

d) Dry chemical

Answer:- c) Foam

14. Range of measuring tape is: -

a) 1 meter

b) Several meters

c) 2 meters

d) 1 Kilometer

Answer:- b) Several meters

15. Cutting forces at the cutting tool

can be measured by: -

a) Dynamometer

b) Viscosity meter

c) Sine bar

d) Combination set

Answer:- a) Dynamometer

16. Check list for job safety

      analysis consists of: -

a) Work area, material, machine, tools      

b) Men, machine, material, tools
c) Men, machine, work-areas, tools

d) Men, work area, material, tools

Answer:- a) Work area, material,

machine, tools

17. A connecting rod is made by: -

a) Casting

b) Drawing

c) Forging .

d) Extrusion

Answer:- c) Forging

18. Minimum reading of

      Vernier calipers is: -

a)   1 mm

b)   1 cm

c)   0.1 mm

d)   0.1 cm

Answer:- c)   0.1 mm

19. What is the unit of potential difference?

a) Ohm

b) Volt meter

c) Volt

d) Ampere meter

Answer:- c) Volt

20. Which one is the example of

plastic welding?

a) Gas welding

b) Arc welding

c) Forge welding

d) Thermit welding

Answer:- c) Forge welding

21. Which of the following cutting

condition is more affects the tool wear?

a) Cutting speed

b) Feed

c) Depth of cut

d) None of these

Answer:- a) Cutting speed

22. A battery consists of: -

a) Diodes

b) Circuits

c) Generator .

d) Number of cells

Answer:- d) Number of cells

23. Industrial safety management is

the branch of management which is

concerned with  ... hazards from

 the industries.

a) Reducing

b) Controlling

c) Eliminating

d) All of these

Answer:- a) Reducing

24. Which of the following tools

are generally manufactured by

powder metallurgy?
a) Low carbon steel

b) High carbon steel

c) Abrasives

d) Cemented carbide

Answer:- d) Cemented carbide

25. When a pure semiconductor

is heated, its resistance ......

a) Goes up

b) Goes down

c) Not changed

d) Can't say

Answer:- b) Goes down

26. A screw jack is used where do

we need .............

a) Rotational motion

b) Linear motion

c) Both (a) & (b)

d) None of these

Answer:- b) Linear motion

27. The clearance angle is provided

on the tools due to: -

a) Strength the tool

b) Shear off the metal

c) For easy flow of chips

d) Prevent the tool from rubbing on

    work piece

Answer:- d) Prevent the tool from rubbing on

                      work piece

28. The following is used to check the

diameters of holes: -

a) Plug gauge

b) Ring gauge

c) Slip gauge

d) Standard screw pitch gauge

Answer:- a) Plug gauge

29. In oxy-acetylene welding colour of

      oxygen cylinder is: -
a) Red

b) Maroon

c) Black

d) Brown

Answer:- c) Black

30. Materials are softened by: -

a) Carburising

b) Tempering

c) Normalising

d) Annealing

Answer:-

31. Which property is used to

oppose the  flow of current?

a) Potential difference

b) Capacitance

c) Inductance

d) Resistance

Answer:- d) Resistance

32. The following class of fire

occurs in electrical equipment: -
a) Class A fires

b) Class B fires

c) Class C fires

d) All of these

Answer:- c) Class C fires

33. Which type of thread is used

 in screw jacks?

a) V thread

b) Acme thread

c) Square thread

d) None ot these

Answer:-c) Square thread

34. Water is used to extinguish?

a) Class A fires       

b) Class B fires       

c) Class C fires       

d) All of these

Answer:- a) Class A fires

35. The following is generally provided

with limit switch to prevent motion

beyond preset limit: -

a) Hoists

b) Machine tables

c) Conveyors

d) All of these

Answer:- d) All of these

36. Sulphation in a lead acid battery

occurs due to: -

a) Heavy charging

b) Fast charging

c) Slow charging

d) Incomplete char,

Answer:- d) Incomplete char,

37. Which one of the following sequences

will give the best accuracy as well as surface
finish?

a) Drilling, Reaming, Grinding

b) Drilling, Boring, Grinding

c) Drilling, Reaming, Lapping

d) Drilling, Reaming, Electroplating

Answer:- c) Drilling, Reaming, Lapping

38. What is the SI unit of electric current?

a) Ampere

b) Ohm .

c) Faraday

d) None of these

Answer:- a) Ampere

39. Which one is not the part of a

two stroke petrol engine?
a) Piston

b) Valves

c) Connecting rod

d) Spark plugs

Answer:- a) Piston

40. Acetylene can be prepared by

chemical reaction between: -

a) Water & calcium carbide

b) Water & chemical carbonate

c) Hydrogen & calcium carbide

d) Hydrogen & chemical carbonate

Answer:- a) Water & calcium carbide

41. Which flame is suitable for

welding of nonferrous metals?

a) Oxidising flame

b) Carbuising flame

c) Neutral flame

d) None of these

Answer:- a) Oxidising flame

42. As the temperature of a transistor

goes up, the base emitter resistance: -
a) Decreases

b) Increases

c) Remains the same

d) None of these

Answer:- a) Decreases

43. What is the frequency of domestic

power in India?
a) 105 Hz

b)60Hz
c) 210 Hz

d)50Hz

Answer:- d)50Hz

44. The capacity of a cell is

measured in ..........

a) Ampere

b) Ampere-hour

c) Watts

d) Watts-hours

Answer:- b) Ampere-hour

45. The following is not used to

measure angles: -

a) Bevel protector

b) Calibrated levels

c) Clinometers

d) Optical flats

Answer:- b) Calibrated levels

46. Which of the following gas

mixture is not used in Gas Tungsten

arc welding?

a) Argon-Helium

b) Argon-Nitrogen

c) Argon-Hydrogen

d) Argon-Carbon dioxide

Answer:- b) Argon-Nitrogen

47. Heat engine uses ........ energy to

produce mechanical work.

a) Thermal

b) Fluid

c) Kinetic

d) Electric

Answer:- a) Thermal

48. The degree of closeness of the

measured  value of certain quantity

with its true value is known as: -

a) Accuracy

b) Precision

c) Standard

d) Sensitivity

Answer:- a) Accuracy

49. In an automobile engine, indication

of knocking is available in the form of: -
a) Light

b)Gas

c) Sound

d) None of these

Answer:- c) Sound

50. A transistor is a__
a) Current

b) Voltage

c) Both (a) & (b)

operated device.

d) None of these

Answer:- a) Current