1. The fuel
that is used in modern submarines is :
that is used in modern submarines is :
(a) Nuclear
fuel
fuel
(b) Petrol
(c) Coal
(d) Diesel
2. The basic
chemical building block of natural rubber obtained from trees is :
chemical building block of natural rubber obtained from trees is :
(a) Isoprene
(b) Vinyl
chloride
chloride
(c)
Acetylene
Acetylene
(d) Neoprene
3. The name
of plastic polymer from which combs, toys , bowls etc. can be made is :
of plastic polymer from which combs, toys , bowls etc. can be made is :
(a)
Polyurethane
Polyurethane
(b)
Polystyrene
Polystyrene
(c) Metallic
Polysulphides
Polysulphides
(d) Teflon
4. ‘Vinegar’
is commercial name of :
is commercial name of :
(a) Oxalic
acid
acid
(b)
hydrochloric acid
hydrochloric acid
(c) Acetic
acid
acid
(d) Citric
Acid
Acid
5. Which
metal does not undergo corrosion due to the formation of oxide layer?
metal does not undergo corrosion due to the formation of oxide layer?
(a) Copper
(b) Iron
(c) Aluminum
(d) Zinc
6. The part
of a leaf by which it is attached to the stem is called _________.
of a leaf by which it is attached to the stem is called _________.
(a) Midrib
(b) Lamina
(c) Node
(d) Petiole
7. Tomato plant
is a
is a
(a) Tree
(b) Herb
(c) Shrub
(d) None of
these
these
8. Woody
perennials, attain height between 3m to 5m, bushy appearance, profused branched
stems from the ground. These plants are ______.
perennials, attain height between 3m to 5m, bushy appearance, profused branched
stems from the ground. These plants are ______.
(a) Trees
(b) Herbs
(c) Shrubs
(d) None of
these
these
9. Changes in
which heat is liberated are called _________
which heat is liberated are called _________
(a) rapid
changes
changes
(b) exothermic
changes
changes
(c) endothermic
changes
changes
(d) none of
these
these
10.The joint
which helps in rotating a body in all directions is called _______
which helps in rotating a body in all directions is called _______
(a) Pivot
joint
joint
(b) Fixed
joint
joint
(c) Ball and
Socket joint
Socket joint
(d) Hinge
joint
joint
11. For
which Diode is used ?
which Diode is used ?
(a)
modulation
modulation
(b)
oscillation
oscillation
(c)
aplification
aplification
(d) purification
12. Which
among the following types of coal produces most heat per unit?
among the following types of coal produces most heat per unit?
(a) coal
(b) lignite
(c) anthracite
(d) pit
13. Which among
the following waves is used for communication by artificial satellites?
the following waves is used for communication by artificial satellites?
(a) Micro
waves
waves
(b) Radio
waves
waves
(c) A.M.
(d)
Frequently of 10^16 series
Frequently of 10^16 series
14. How much
calorie of energy is released by a boiled egg?
calorie of energy is released by a boiled egg?
(a) 40
(b) 50
(c) 60
(d) 77
15. Optic
fibre are used in:
fibre are used in:
(a) CAT
scans
scans
(b) X-ray
photos
photos
(c)
Ultrasound scans
Ultrasound scans
(d)
Endoscopy
Endoscopy









