1) Projection welding is
ANSWER- MULTISPOT WELDING PROCESS

2)Solder material is made from
ANSWER- TIN-LEAD BASE

3)Injection moulding is the method for
ANSWER- THERMOSETTING PLASTICS

4)Ceramic tools are made from
ANSWER- ALUMINIUM OXIDE

5)The maximum efficiency of screw jack is
ANSWER- 1-sinC/1+sinC WHERE C IS FRICTION ANGLE

6)For a self braking screw jack, efficiency of screw jack will be 
ANSWER- LESS THAN 50%

7)What is the transport symbol in work study 
ANSWER- ARROW SYMBOL(LOOK IN BOOK)

8)Ultrasonic machining removes material by
ANSWER- USING ABRASIVE SLURRY BETWEEN TOOL AND WORKPIECE

9) In orthogonal cutting system, the cutting edge is
ANSWER- PERPENDICULAR TO DIRECTION OF TOOL TRAVEL

10)LMTD value in case of counter flow heat exchanger is
ANSWER- MORE IN COMPARISON TO PARALLEL FLOW HEAT EXCHANGER

11)Cycles used in thermal power plants is
ANSWER- Rankine cycle

12)AN isolated system is
ANSWER- IN WHICH NEITHER MASS NOR ENERGY CROSSES BOUNDARY OF SYSTEM

13)The governor used in gramophones is
ANSWER- PICKERING GOVERNOR

14)The pressure angle for involute gears is
ANSWER- ALWAYS CONSTANT

15)External tapers can be measured with the help of
ANSWER- SINE BARS

16)Longitudinal stress in thin cylinders is
ANSWER- PD/4T

17)For uniform distributing load, the maximum bending moment is equal to
ANSWER- WL/8 WHERE W= TOTAL LOAD, L= LENGTH OF BEAM

18)A continuous beam is
ANSWER- WHICH HAS MORE THAN TWO SUPPORTS

19)Francis turbine is
ANSWER- INWARD RADIAL FLOW REACTION TURBINE

20)The stress induced in a body due to suddenly applied load is equal to
ANSWER- two times in comparison to gradually applied load

21)Davis steering gear consists of 
ANSWER- SLIDING PAIRS

22)HART mechanism has
ANSWER- SIX LINKS

23)Argentite is the principle ore of
ANSWER- SILVER

24)Non consumable electrode is used in
ANSWER- TIG WELDING

25)Discontinuous chips occurs in the case of
ANSWER- BRITTLE MATERIAL

26)What is the symbol of spot welding
ANSWER- LOOK IN THE BOOK