SHIP CON PRELIM

1. IN SHIP BUILDING MATERIAL THE MAIN MATERIAL USED IS:

MINERALS

IRON

STEEL

ALUMINUM

2. The properties of metal to bend or mold into a given shape?

Hardness

Brittleness

Plasticity

Toughness

3. WHAT IS THE PRIME IMPORTANCE IN DESIGNING A SHIP?

SIZE OF THE SHIP

ECONOMIC FACTOR

AVAILABILITY OF TIME

TIME OF BUILDING

4. It is a type of welding consisting of 2 electrodes

Thermit welding

. Resistance welding

Electric Arc welding

Gas welding

5. WHAT INFORMATION IS NEEDED IN THE PRELIMINARY STAGE?

STABILITY

SURVEY CERTIFICATES

TRIAL CONDITION

PATENTS

6. A WELDING POSITION IN WHICH VARIOUS PARTS WERE PLACE IN THE MOST CONVINIENT PLACE?

DOWNHAND

OVERHAND

VERTICAL

HORIZONTAL

7. WHEN A LOAD IS PLACED OR PUT ON A PIECE OF MATERIAL IN SHIP BUILDING, IT IS CALLED:

STRAIN

BENDING MOMENT

LOADING

STRESS

8. It is a weld test procedure where a photographic plate is exposed to x-ray radiation?

. Ultrasonic inspection

. Dye penetrants

Radiographic inspection

Visual examination

9. When the vessel is in a sagging condition, where does the tensile stress be felt?

. In the bottom

In the bridge

. On the deck

On the forepart where the weight is less

10. What kind of major disturbance on the ship's body causes cracks on the stern frame?

Shearing forces

Internal forces

Dynamic Force

Bending moments

11. When a vessel is experiencing compressive stress on the deck, what is its possible effect to the vessel?

Hogging

Sagging

Dynamic force

Pounding

12. WHAT DO CALL AN ORGANIZATION CREATED FOR THE INITIAL INSPECTION OF SHIPS?

INT'L MARITIME ORG.

LLOYDS SURVEYING ORGAN

CLASSIFICATION SOCIETY

INT'L SHIPS REGISTRATION

13. What is the best description of a tack weld?.

. A butt weld for

A temporary weld

. A lap weld

A flush weld

14. When is a material said to reach its yield point?

. The material has reach its elasticity

The metal resists wear and tear

. The state of a material tends to remain the same after it is stretch

When plasticity ends

15. The vessel's structure is distorted due to panting, what ship's motion is a contributor to it?

. Pitching

Rolling

Heaving

Swaying

16. What is the high advantage of high tensile steel over mild steel in ship building?

It has high carbon contain steel

. Good weld ability characteristics

. It saves 60% of the weight

Recommended by American Bureau of Shipping

17. What type of weld does an intermittent weld belongs to?

Normal fillet weld

Full penetration fillet weld

. tack weld

Lap weld

18. What is the best butt weld preparation for steel thickness up to 20 mm?

. U-weld

. Single V preparation

. Double V preparation

V-weld

19. Shear forces tend to affect the material on a vessel's structure, what causes this stress?

. When there is longitudinal distortion

. when simultaneous loading starts

. When there is a constant varying loads

When hogging is experienced

20. A TYPE OF WELDING IN WHICH FLUX COVERED COATED ELECTRODE FED THE JOINT?

ELECTRO GAS WELDING

TUNGSTEN INERT GAS

METAL INERT GAS

AUTOMATIC WELDING

21. What is true about in-water survey of vessels?

Conducted prior to docking survey

. Conducted twice in any docking survey

Become due every 4 years

. Done at the end of the docking survey

22. What causes the absence of reinforcement or root penetration in welding?

. high welding current

. low welding current

. incompetent welder

. incorrect material used

23. What makes the forward bottom area of the vessel as one to consider a critical region?

The area experiences too much panting in heavy weather

It is because of the structure of the framing system

It is affected by too much rolling and pitching

. It is where buoyancy is usually present

24. What is the best description of vertical shear forces?

. Total stress minus load

The opposite of stress

The total deformation which the body experiences when subject to load

. The upward and downward distortion forces

25. A TYPE OF WELD WHEREBY IT IS APPLIED TO RIGHT ANGLED JOINTS AN LAPPED JOINTS?

BUTT WELD

FILLET WELD

TACK WELD

U- WELD

26. A WELDING METHOD WHICH IS MAINLY USED FOR JOINING CASTED IRON?

THERMIT WELDING

RESISTANCE WELDING

ACETYLENE WELDING

ELECTRIC ARC WELDING

27. What is the term given to the effect of stress where at any point results to the algebraic sum of moments of all loads acting between that point and one end of the vessel?

. Tensile stress

. Bending moment

. Shear forces

Compressive

28. How will you know that ship building materials can withstand stress?

. By the effect of stress and strain as to fatigue

. By dividing the area of the material by its load

. By determining its total strain

By determining its load per unit area

29. It is an immediate cause of stress due to excessive rolling and pitching of the vessel.

Racking

. Pounding

Sloshing

. Panting

30. What is all about young's modulus?

. Stress is directly proportional to strain

. Stress is indirectly proportional to strain

Strain is indirectly proportional to stress

Stress directly proportional to the sectional area of the material

Ship CON Prelim