DBDA- MA

1.
On What material would chisel be used?
2.
If the gear on the left turns in the direction of the arrow, which way does the gear on the right turn?
3.
What is this tool?
4.A device that does the same things as a fuse does is called a(n)
5.


In which of the following situations is the least force needed at the arrow, to balance the lever?
6.
Where should the highway be elevated or raised?
7.
Which of the shelves will support the greatest weight?
8.
If Gear X is turning in the direction of the arrow, in what direction and how fast is Gear Y turning?
9.Powdered graphite is useful as a(n)
10.
Which shaft is turning fastest?
11.In which of the following lists are the four metals arranged from hardest to softest ?
12.
In what direction and how fast is wheel X turning as the Treadle moves in the direction of the arrow?
13.A basic part of many thermostats is
14.
What do we call the part of this tool that is marked with an X?
15.
This tool is used by a mason for:
16.An automobile carburettor
17.
The Shaft in the picture cannot move from one side to other, but it can turn. As the shaft is turned in the direction shown by the arrow, which way will the gear turn?
18.
In which circuit is the voltage always the same across each resistor, regardless of the values of R1 and R2?
19.
After hitting the black coin, which way is the striker likely to go on the carom-board?
20.
If same kind of coins are dropped in these two beakers, which coin will drown faster?
21.
Which of the wooden boxes is the heaviest?
22.
Which of these shelves will hold the maximum weight?
23.
How will figure X will look in the mirror? Choose from the figures given below:
24.
Which of these glass will break easily when poured with very hot liquid?
25.
Find out the missing number?

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