Safety in welding shop mcq type question and answer

                       safety in welding shop 

Introduction: Safety means the quality or condition being safe, free from dangers, injury or damge. Safety in welding is a many sided problem. Each welding process present problems peculiar to its method of operation.
 During welding or cutting the welder is exposed to hazards such as
* Injury due to harmful radiation ( ultra violet and infra red rays) of arc.
* Burns due to excessive heat from arc and flame .
* Electric shock.
* Toxic fumes, explosion and fire.

mcq types question and answer.

1. Potential hazards relating to arc welding are

a. Radiation

b. Fumes

c. Toxic

d. All of the above

ans. ( d)

2. If a worker has suffered from electric shock, he should be

A. given an alcoholic drink

B. given a cold drink

C. Made to walk

D. Kept warm and covered

ans. (d)

3. What type of fire extinguisher should be used on electrical fire?

a. Type A

b. Type B

c. Type C

d. Type D

ans. (c)

4. Which of the following is not an insulator?

A. Gold

B. Glass

C. Mica

D. Wood

ans. ( a)

5. Which of the following is not a conductor?

A. Copper

B. Aluminium

C. Mica

D. Gold

ans. (c)

6. One should never enter a welding shop without wearing

A. Gloves

B. Safety glasses

C. a welding leather

None of the above

ans.( b)

7. What should one never use on gas cylinder regulators connection and hoses?

A. Wrenches

B. Teflon tape

C. Leak detector

D. Oil

ans.( d)

8. A burn that causes the skin to blister is referred to as a

A. First degree burns

B. Second degree burns

C. Third degree burns

D. Fourth degree burns

ans.( b)

9. During overhead arc welding it is more convenient to use

A. Welding Goggles

B. Helmet

C. Hand screen

D. Sun glasses

ans.( b)

10. The safety device used to protect eyes while grinding is

A. Hand screen

B. Helmet

C. Chipping goggles

D. Chipping screen

ans. (c)

11. There are three pre-requisite for any fire or explosion to take place. Which one of the following is not included in the three pre-requisite?

A. Fuel

B. Oxygen

C. Nitrogen

D. Ignition

ans.( c)

12. Which type of fire extinguisher is used in a welding shop?

A. Foam type extinguisher

B. Dry powder extinguisher

C. CO2 extinguisher

D. Halo

ans.(c)

13. The type of radiation which penetrates the interior of the eye and can cause burns on the retina is

A. Infrared

B. Ultraviolet

C. Visible light

D. None of the above

ans.( a)

14. when using a fire extinguisher to extinguish a fire, it should be

A. Pointed at the base of the fire

B. Moved up and down to cool the flames

C. Pointed at the top of the fire

D. Held within six inches of the flames

ans.(a)

15. The maximum safe working pressure for acetylene is

A. 10 psi

B. 15 psi

C. 20 psi

D. 32 psi

ans. (b)