Physics (JSS 3) 2nd term Examination

1. Electrical accessories are as follows, except:

2. One of these is among the safety precautions in electrical wiring

3. The type of wiring that the cables land on the surface of the wall is called

4. Welding is ___________ in metals

5. The chemical reagent used for cleaning and removing oxides from surface to be joined is called

6. The three methods of metal joining metals are as follows, except

7. Brazing has the similarities with

8. One of these is not not made of wood

9. The following are types of bonding, except

10. The arrangement of bricks or blocks horizontally in a way there is no vertical joint is called

11. ________ is a continuous vertical brick or stone structure that encloses or divide and area or land.

12. Interior doors includes the following, except

13. ________ is a type of window made of glass blades which are divided into a number of glazing bars fixed into metal frames to accommodate the panels.

14. Functions of a windows are as follows, except

15. Types of excavation for foundation are

16. _______ is used in making fences and bungalows.

17. The energy conserved in the movement simple pendulum is

18. A pendulum consist of a large mass suspended from a ______________ by a relatively massless string.

19. _______ are easily moulded, brittle and tough when dry, sticky when wet.

20. Mechanical fasteners includes the following, except

Subjective (Answer All)

1. Example of Temporary fastener is ________

2. _________ is used to drive a nail in a wood

3. Building plan are drawn and designed by an ___________.

4. If a body has potential energy of 12kJ with no velocity, then it's mechanical Energy will be _________

5. __________ divide the space inside a building in compartment

6. Using of charcoal heat source to heat soldering bit is ___________ method.

7. The type of welding that uses electrode is called _____________

8. _______ dries quickly, moderately plastic, homogeneous, soft and firm

9. __________________ is a constituent part of a building (or other built asset) which is manufactured as an independent unit, subsystem or subassembly, that can be joined or blended with other elements to form a more complex structure.

10. An electrical component that is used to switch either on or off current is called _________

Theory (Answer All)

1. Use diagram to differentiate a SERIES CIRCUIT and a PARALLEL CIRCUIT showing a battery, wire, lamp, radio, Television and switch.

2a. List 4 wiring tools and their uses

2b. Give 4 safety regulation in electrical wiring

3. Enumerate the following types of welding: (i)Arc welding (ii) Mechanical fasterner (iii) Riverting

4(i). Mention 3 function of doors and, (i) 3 functions of floor

5a. Explain how energy is conserved using simple pendulum

5b. Calculate the mechanical Energy when the truck travels 40m/s and it's mass is 20kg