ECAT Pre Engineering Chemistry Chapter 26 MCQ Test With Answer

Question # 1

The word paper is derived from the name of which seedy plant?

Rose A
Sun flower B
Papyrus C
Water Hyacinth D

Question # 2

Which woody raw material is used for the manufacture of paper pulp?

cotton A
Bagasse B
Popular C
Rice straw D

Question # 3

Which fills the space between needles in cement setting?

Ca(OH)₂ A
Al(OH)₃ B
CaCO₃ C
MgSO₄ D

Question # 4

Ammonia is injected tinder the soil surface

1 feet A
6 inches B
6 feet C
inches D

Question # 5

75% plant nutrients are present in the fertilizer

urea A
NH₄NO₃ B
NH₃ C
(NH₄)₂HPO₄ D

Question # 6

To meet the due need of food by increasing population we must use in agriculture

good seeds A
pesticides B
fertilizers C
all D

Question # 7

At present cement plants in Pakistan are

ten A
twenty two B
four C
twenty four D

Question # 8

Ammonia contains nitrogen in it

46% A
50% B
80% C
82% D

Question # 9

Major component in cement is

SiO₂ A
Lime B
Al₂O₃ C
MgO D

Question # 10

Which is not nitrogeneous fertilizers?

(NH₄)₂HPO₄ A
NH₄NO₃ B
urea C
Calcium phosphate D

Question # 11

Pakistan at the time of existence in 1947 was a country:

agrarian A
industrial B
nuclear C
economically strong D

Question # 12

Ammonium nitrate fertilizer is not used for which crop?

Cotton A
Wheat B
Sugar-cane C
Paddy rice D

Question # 13

A colloidal gel is

3cA, Al₂O₃ A
CaSO₂.2H₂O B
3CaAl₂O₃.3CaSO₄.2H₂O C
3Ca.Al₂O₃.6H₂O D

Question # 14

Which three elements are needed for the healthy growth of plants?

N, S, P A
N, Ca, P B
N, P, K C
N, K, C D

Question # 15

Pakistan in the beginning was a country

industrial A
chemical B
agrarian C
technological D

Question # 16

Composition of clay in cement is

25% A
50% B
75% C
80% D

Question # 17

Urea has concentration when prepared before prilling

46% A
82% B
99.7% C
100% D

Question # 18

Setting time of cement is controlled by adding

Epsom A
Gypsom B
CaCO₃ C
CaCl₂ D

Question # 19

Which is a component of micro nutrient?

N A
Zn B
P C
K D

Question # 20

How many are the zones through which the charge passes in a rotary kiln?

4 A
3 B
2 C
5 D

Question # 21

Which is not a calcarious material

lime A
clay B
marble C
marine shell D

Question # 22

Gypsom added in the cement is

5% A
10% B
15% C
20% D

Question # 23

Cement is a combination of mainly

calcarious A
argillaceous B
calcarious and argillaceous C
Al₂O₃ D

Question # 24

After chlorination, the pulp is washed at

20°C A
30°C B
40°C C
60°C D

Question # 25

The nitrogen present in some fertilizers helps plant to

fight against diseases A
Produce fat B
Undergo photosynthesis C
produce protein D

Question # 26

Which is a component of macronutrient?

Zn A
N B
Mo C
Cl D

Question # 27

The strength of economy of a country is measured with respect to production of

Medicines A
Cement B
Fertilizers C
Paper D

Question # 28

Major fertilizers with micro—nutrients are

Nitrogeneous A
Phosphatic B
Potash C
a,b,c D

Question # 29

The cement plants in west Pakistan at the time of creation were

ten A
twenty two B
four C
twenty four D

Question # 30

During the manufacturing process of cement the temperature of the decomposition zone goes up to

600^oC A
8000^oC B
1000^oC C
1200^oC D

Sr.#	Question	Answer
1	Pakistan at the time of existence in 1947 was a country:	A. agrarian B. industrial C. nuclear D. economically strong
2	Gypsom added in the cement is	A. 5% B. 10% C. 15% D. 20%
3	After chlorination, the pulp is washed at	A. 20°C B. 30°C C. 40°C D. 60°C
4	During the manufacturing process of cement the temperature of the decomposition zone goes up to	A. 600^oC B. 8000^oC C. 1000^oC D. 1200^oC
5	Major fertilizers with micro—nutrients are	A. Nitrogeneous B. Phosphatic C. Potash D. a,b,c
6	Ammonia is injected tinder the soil surface	A. 1 feet B. 6 inches C. 6 feet D. inches
7	75% plant nutrients are present in the fertilizer	A. urea B. NH₄NO₃ C. NH₃ D. (NH₄)₂HPO₄
8	At present cement plants in Pakistan are	A. ten B. twenty two C. four D. twenty four
9	To meet the due need of food by increasing population we must use in agriculture	A. good seeds B. pesticides C. fertilizers D. all
10	How many are the zones through which the charge passes in a rotary kiln?	A. 4 B. 3 C. 2 D. 5

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