Construction Safety Basic Questions & Answers..

SE	Q   U   E   S   T   I O   N   S	A   N   S   W   E   R   S
1	Time limit of preliminary report?	24 Hours.
2	How many type of work permits	4 Types
3	What shell be distance between flammable storage and bulk combustible	15 Meters ( 50 feet ).
4	What is safe procedure to lighting the torch cutting operation?	Spark Lighter.
5	What is the safety method to prevent cave ins in excavation?	Shoring, Sloping and Benching.
6	What is the frequency of 10 minute safety talk?	Weekly.
7	Explain the safe way to carry if load at fork lift obstruct the front view?	Reverse.
8	What safety device shell be used to prevent direct contact with object and circular saw?	Push Stick.
9	What is the meaning of FM & UL?	Factory Mutual And Underwriters Laboratory.
10	What is the voltage rating preferred / allowed to use	110 Volts.
11	What is the main component of standard guardrail system?	Post ( Standard ).
12	What you will explain during orientation of newly mobilized workers,	Sanitary, Evacuation Plan and CSM rules & regulations.
13	What are the basic PPE in construction site, give at least five?	Hard Hat, Safety Goggles, Safety Shoes, Hand Gloves,
14	What is the safety method being used to prevent static electricity built up?	Grounding.
15	What is the safety device that can be used in circuit to prevent short	Ground Fault Circuit Interrupter ( GFCI )
16	Who will certify the operator of cartridge tools?	Vendor.
17	What is the  standard stated that how water dispenses of site	Every job site.
18	What is the basic requirement for a crane to use  site?	Having a valid  Inspected Sticker.
19	What safety device shell be use if someone assigned as a flagman?	Reflected orange color vest and flag.
20	How to protect the cylinder if it is not in use?	With valve cap.
21	What is the color of oxygen cylinder?	Green.
22	Gas test is required below the depth is?	4 feet or deeper.
23	Angle , Slope & Rating of ladder placement?	3 feet above the landing, 75º slope and spacing every 25 feet.
24	What type of fire extinguisher shell be used for type “C” fire?	CO² Type.

25	What type of fire extinguisher shell be  used for type “A” fire?	Water type.
26	No vehicle or plant shell be operated unless the operator holds?	Hot work permit.
27	What shell be used to prevent flashback fire in gas cutting torch?	Flashback Flame Arrestor.
28	Who authorized to receive , request & obtain work permit?	Permit Receiver.
29	What is type “A” soil?	Clay, Rock.
30	Give reason why accident need to be reported?	To prevent further accident.
31	What is the normal contact of oxygen inside the confined space?	19-23%
32	What is the duty of stand by man?	To watch the workers and possible hazards.
33	Give at least three duties of a Safety Officer?	Educate the employees, Reporting and Monitor the workers,
34	What is the meanings of LEL?	Low Explosive Level.
35	What is the meanings of PPM?	Part Per Million.
36	H2S concentration level requiring breathing apparatus?	Self Confined Breathing Apparatus ( SCBA ).
37	What main purpose is locked and tag out system?	To avoid injury.
38	How many hours exposure allowed when working 90 dbA level?	8 hours.
39	What MSDS?	Material Safety Data Sheet.
40	What you can find in MSDS?	Hazards Material & Classification.
41	What should be discussed in safety toolbox meeting?	How to work safely and previous unsafe conditions or
42	What you will do when H2S leak encountered?	Stop the work, shut off the tools & equipments and go to the
43	What is the ratio of number of toilets required on work site?	1 toilet for 15 persons.
44	Who is responsible for the work permit?	Receiver.
45	Cylinders are not designed for temperatures in excess of?
46	All lamps shell be enclosed by?
47	Are eye or flash is a well-known condition in welding operations and is
48	Full body harness shell be worn at all work areas where a man could fall?	1.8 meter ( 6 feet )
49	Lanyard length shell be?	1.8 meter ( 6 feet )
50	During the use of an basket the lanyard shell be secured to?
51	Hydrostatic and pneumatic strength pressure testing and leak testing shell comply with GI	GI 2.102
52	What is the distance for crane boom, If overhead power lines up to 250,000 volts?	6 meter ( 20 feet ).

53	What is the distance of night time warning lights spaced , and above		Spacing every 2 feet and 3 feet above the ground.
54	Give five equipments which are required Inspection Sticker?		Crane, Man lift, Boom truck, Spider Basket and Man Basket.
55	When required ear plug / muff?		90 dBA & above.
56	How much First Aid trained required in one remote site?		One
57	The CSMH		( C )  Is intended for use at the job site by company
	a.	Is condensed version of the full size CSM.
	b.	Lists common safety rules for  Construction.
	c.	Is intended for use at the job site by company representative and contactor supervisor and Safety
	d.	All of above.
58	When an accident happens you shall :-		( C ) Report immediately to company proponent.
	a.	Call the police.
	b.	Clean up the accident scene.
	c.	Report immediately to company proponent.
	d.	All of the above.
59	With in____________of being aware of an incident, the company		( B )  1 day ( 24 hours )
	representative shall notify the area loss Prevention Officer
	a.	1 hour
	b.	1 day ( 24 hours )
	c.	6 hours
	d.	12 hours
60	Contractor Safety Officer or site Safety Supervisor shall :-		( D )  All of the above.
	a.	Interact with the company representative on health & safety issues.
	b.	Inspect work site daily.
	c.	Keep record of all safety meetings.
	d.	All of the above.
61	The contractor must provide one toilet for every :-		( B ) 15 workers.
	a.	50 workers.
	b.	15 workers.
	c.	25 workers.
	d.	10 workers.
62	Safety belts (Waist Belt ) shall be used for fall arrest if it is rated at 2450		( B )  False
	kg.
	a.	True     b. False

63	The  sanitary code states that :-		( D )  None of above.
	a.	Eating is allowed on the worksite.
	b.	You shall provide one toilet for every 50 persons.
	c.	You shall provide drinking water and a dipper.
	d.	None of above.
64	Housekeeping required are :-		( C ) Bend-down or remove nails in board.
	a.	Collect trash, debris and refuse monthly.
	b.	Use opened topped containers for trash.
	c.	Bend-down or remove nails in board.
	d.	All of the above.
65	Site planning for the lay down yards include :-		( B )  A study and grounded perimeter fence with
	a.	Proponent approved lay down yards shall be at least 30 meters
	(100 Feet ) away from building.
	b.	A study and grounded perimeter fence with fire-engine access gate
	shall enclose the area.
	c.	Fire protection is not required as per CSM appendix C.
	d.	All of  the above.
66	The contractor shall provide First Aid facilities for his employees which		( D )  All of  the above.
	include:-
	a.	A First Aid cabinet on each job site.
	b.	At least on man at every remote site shall be trained in first aid.
	c.	A dedicated emergency vehicle ( ambulance ) must be provided to
	transport injured persons.
	d.	All of  the above.
67	When more than 50 employees work inside a 15 Kilometers radius, there		( A )  A nurse or first aid facility.
	shall be:-
	a.	A nurse or first aid facility.
	b.	A toilet.
	c.	A fire extinguisher.
	d.	Non all of  the above.
68	Full body harness shall be prevent falls grater than :-		( C ) 1.8 meter ( 6 feet ).
	a.	1 meter ( 3.33 feet ).
	b.	1.5 meter ( 5 feet ).
	c.	1.8 meter ( 6 feet ). d. None all of the above.

69	Foreman / Supervisor shall :-		( C ) Conduct weekly safety meeting.
	a.	Prepare and submit an HIP for Loss Prevention review and
	approval.
	b.	Investigate accidents and reports finding.
	c.	Conduct weekly safety meeting.
	d.	Assure that work permit procedure is followed by all subordinates.
70	A preliminary  report is due within 24 hours complete with a copy to loss		( A )  True
	prevention .
	a.	True
	b.	False.
71	Drivers shall not allow passengers to ride in their vehicle unless they have		( A )  True
72	Heavy equipment drivers shall :		( D )  Report any accident or damage immediately.
	a.	cover the windows to protect there eyes from the sun.
	b.	Allow passengers to ride in their vehicles without wearing a seat
	belt.
	c.	Drive with speed if there is no vehicle in front of him.
	d.	Report any accident or damage immediately.
73	There are three kind of work permit in  system.		( B )  False.
	a.	True.
	b.	False.
74	Countersignatures shall be obtained by issues and receivers.		( B )  False.
	a.	True.
	b.	False.
75	Gas testing for the work permit should be done by :-		(A )  A certified  gas tester
	a.	A certified  gas tester
	b.	The contractor.
	c.	The inspector
	d.	None all of  the above.
76	The work permit should be revised if there is any change in the condition. a. True. b. False		( A )  True

77	Common excavations risks include :		( D )  All of  the above.
	a.	Cave-in.
	b.	Toxic gasses.
	c.	Striking buried service lines.
	d.	All of  the above.
78	Shoring for excavations shall include :		( A )  Vertical excavations that are grater than 2.4 meter
	a.	Vertical excavations that are grater than 2.4 meter ( 8 feet ) deep
	shall be shored.
	b.	Shoring boxes shall be kept occupied during movement and
	installation.
	c.	Trench shield walls must extend above the excavation walls.
	d.	None of  the above.
79	Transportation for the flammable liquids shall be in closed metal		( A )  True
	containers.
	a.	True.
	b.	False.
80	Ladders at the excavation should be placed within shored area and tied off		( A )  True
	to prevent slipping :
	a.	True.
	b.	False.
81	Slope walls are not acceptable as a substitute for shoring.		( B )  False.
	a.	True.
	b.	False.
82	Type________________soil is mix of sand, rock and clay must be slope		( B )  B,1 to 1 slope or 45º
	at :
	a.	A, ¾  1 slope or 53º
	b.	B,1 to 1 slope or 45º
	c.	C, 1.5 to1 slope or 34º
	d.	Non of  the above.
83	Exit ladder at confined space entry into a 1.2 meter ( 4 feet ) deep or		( D )  Only answer “ A & C “are correct.
	deeper trench.
	a.	Must be placed every 7.5 meter  ( 25 feet ) set at 75º angle.
	b.	Shall not be extended above the ground level.
	c.	Must be secured. d. Only answer “ A & C “are correct.

84	For demolition, the approved HIP should describe the following :-		( A )  Isolation of specific utility service.
	a.	Isolation of specific utility service.
	b.	Debris from demolition shall not be rendered because it might to
	used later.
	c.	Work permit requirement.
	d.	All of the above.
85	When working where asbestos and others are present :-		( B ) Showering and washing facilities shall be provided
	a.	Paper dust mask should be worn.
	b.	Showering and washing facilities shall be provided for all asbestos
	workers at the all job site and used daily by each man.
	c.	Beard will allow a safe seal with respirators.
	d.	None all of the above.
86	When you want to remove asbestos :-		( B ) Wet asbestos with water before remove the asbestos.
	a.	Use electrical tools to cut and remove asbestos.
	b.	Wet asbestos with water before remove the asbestos.
	c.	Use vacuum.
	d.	Non of above all.
87	Acetylene becomes unstable at pressure ___________ 103 Kpa (15 psi )		( C ) To make it easy to be stored.
	a.	Equal.
	b.	Below.
	c.	Above.
	d.	None of the above.
88	The reason that acetylene cylinders be stored, handled and used in the		( A )	to prevent the acetylene and liquid acetone from
	vertical position is :-		separating
	a.	to prevent the acetylene and liquid acetone from separating
	b.	To allow it mix with air.
	c.	To make it easy to be stored.
	d.	None of the above.
89	In order to store cylinder safely :-		( D )  All of above.
	a.	They should be store in safe, dry well ventilated place.
	b.	Flammable substance should not be stored in the same area.
	c.	They should be not stored near a source of heat.
	d.	All of above.
90	Welding and cutting torches shall be :- a. Constructed of brass, bronze or stainless steel. b. Bear a UL or FM label. c. Have colored code hashes. d. All of above.		( D )  All of  the above.

91	Flash back flame arrestors should be place on both the regulator and		( B )  False.
	torch.
	a.	True.
	b.	False.
92	Oil grease may be used on oxygen cylinder fittings or system.		( B )  False.
	a.	True.
	b.	False.
93	Hand held power tools that are plugged into a welding machine.		( A )  Shall have a GFCI.
	a.	Shall have a GFCI.
	b.	Shall be made from conductive materials.
	c.	Are not allowed.
	d.	None of the above.
94	Welding hoods shall be worn by the welder and helper.		( A )  True
	a.	True
	b.	False
95	Compressed gas cylinders requirements :-		( D )  All of  the above.
	a.	Don’t use cylinders have dents, rust, gouges or burn marks.
	b.	Make empty cylinders as “ MT “ with chalk.
	c.	Remove from service any compressed gas cylinder in violation of
	the regulation.
	d.	All of the above.
96	Leak check on cylinders may done by :-		( B )  Applying a soap water solution.
	a.	Using a lit match.
	b.	Applying a soap water solution.
	c.	listening for a hissing sound.
	d.	None of the above.
97	A work permit is not required for blasting operation.		( B )  False.
	a.	True.
	b.	False.
98	The__________________ is responsible  for all safety aspects of the explosive operation.		( B )  Blaster - in- charge.

99	Crane can be used to extract hammer driven piles.		( B )  False
	a.	True.
	b.	False.
100	Piles driving equipments need to have a veiled inspection sticker.		( A )  True
	a.	True.
	b.	False.
101	Crane shall not be used as pile drivers and shall not be used to drop any		( A )  True
	load.
	a.	True.
	b.	False.
102	_____________ can be used to extract hammer and driven piles.		( C )  Steam, air or electric extractor.
	a.	Sound lifting gear.
	b.	Crane.
	c.	Steam, air or electric extractor.
	d.	None of the above.
103	Trenching and road closer require:-		( D )  All of  the above.
	a.	Work permit.
	b.	Road work and road closer plans submitted to loss prevention.
	c.	Notices published in the  highlights and notice
	before the road closed.
	d.	All of the above.
104	To reduce the traffic hazards :-		( D ) Only answer A & C are correct.
	a.	Flagman shall be positioned to warn approaching traffic of active
	roadwork.
	b.	English only signs must be posted.
	c.	Arabic & English sign board must be posted.
	d.	Only answer A & C are correct.
105	Ladder shall be use on top of the scaffolding work platform.		( B )  False.
	a.	True
	b.	False.
106	In order to use stepladder safely :- a. Two men should be on ladder at the same time to balance the ladder. b. Never stand on the top step. c. Step ladder should be used to gain access to roof or other elevated surfaces. d. Lean it against wall for support.		( B )  False.

107	Pressure testing ( GI 2. 102) covers what type of tests.		( D )  All of the above.
	a.	Hydrostatic.
	b.	Leak tests.
	c.	Pneumatic tests.
	d.	All of the above.
108	Damaged ladder should be :-		( C )  Remove from the site.
	a.	Painted.
	b.	Remanufactured
	c.	Remove from the site.
	d.	None of the above.
109	Extension ladders shall be extended 0.9 meter ( 3 Feet ) above the		( A )  True
	landing.
	a.	True.
	b.	False.
110	Erected scaffold required that :-		( D )  All of the above.
	a.	Erection and assembly shall be done by trained and authorized
	persons.
	b.	Inspection shall be made every day.
	c.	That erection plan is submitted to Loss Prevention for all
	scaffoldings above 38 meters ( 128 feet ).
	d.	All of the above.
111	Scaffolding planks :-		( B )  Shall not be cracked more than 12 “.
	a.	Shall be painted.
	b.	Shall not be cracked more than 12 “.
	c.	Shall not extend beyond the end frame.
	d.	All of the above.
112	Don’t support scaffold on concrete blocks, barrels and scaffold planks.		( A )  True
	a.	True.
	b.	False.

113	All electrical operated hand tools :-		( D )  Only A & B answer are correct.
	a.	Shall be plugged into GFCI.
	b.	Shall be bear a UL and FM label.
	c.	Electrical power can be used up to 220 volts AC.
	d.	Only A & B are correct.
114	All sandblast components and work surfaces shall be electrically bonded		( A )  True
	to the compressor and the compressor grounded to a permanent ground to
	prevent static electricity build-up.
	a.	True
	b.	False.
115	In tarring operation;-		( C ) Temperature of  hot asphalt may exceed 232º C ( 450º F
	a.	Tar shall heat on roof top.
	b.	Hot asphalt shall be lifted in buckets.
	c.	Temperature of  hot asphalt may exceed 232º C ( 450º F ).
	d.	None of the above.
116	Load charts and range damnations shall be displayed in every crane cab.		( A )  True
	a.	True.
	b.	False.
117	Crane booms shall be kept_____________ from overhead power line up		( A )  6 meter ( 20 feet ),7.5 meters (25 feet ).
	to 250,000 volts and _________ above 250,000 volts.
	a.	6 meter ( 20 feet ),7.5 meters (25 feet ).
	b.	9 meters ( 30 feet ), 10.5 meters (350 feet ).
	c.	12 meters (40 feet ), 13.5 meters (40 feet ).
	d.	None of the above.