Plan Aid Academy Teacher Proficiency Test In Sciences
. Biology Chemistry Physics Combine in One paper
- 1.In evolution, analogous structures are significant because they show?
- A.
Physiological diversity
- B.
Functional diversity
- C.
Genetic diversity
- D.
Structural diversity
- 2.Which of the following statements reflects the mechanism of natural?
- A.
Organisms with selective advantages are less likely to survive
- B.
No organism in a species dies before sexual maturity
- C.
There are variations within every species
- D.
Individuals of every species are genetically identical
- 3.Which of the following animals exhibits territoriality?
- A.
Rabbit
- B.
Earthworm
- C.
Toad
- D.
Lizard
- 4.The branch of Biology that deals with the principles of classification of organisms is known as ?
- A.
taxonomy
- B.
Ecology
- C.
Nomenclature
- D.
Biological index
- 5.Which of the following structures is a tissue?
- A.
Sieve tube element
- B.
Vessel element
- C.
Blood
- D.
Erythrocyte
- 6.Which of the following cells are not regarded as specialized?
- A.
Root up cells
- B.
Muscle cells
- C.
Somatic cells
- D.
Sperm cells
- 7.Which of the following pairs of cells carry out the same function?
- A.
Spermatozoon and ovum
- B.
Check cell and red blood cell
- C.
Palisade cell and epidermal cell
- D.
Root tip cell and guard cell
- 8.If Amoeba is placed in a salt solution. the contractile vacuoles would Options?
- A.
Be bursting more frequently
- B.
be more numerous
- C.
Grow bigger before they burst
- D.
Be formed less frequently
- 9.In which of the following habitats is paramecium not fo
- A.
Pond
- B.
Aquarium
- C.
Lake
- D.
Puddle
- 10.The following processes are involved in water movement in the endo dermis except?
- A.
Osmosis
- B.
Vascular pathway
- C.
Diffusion
- D.
Active transport
- 11.Which of the following sources of energy contributes to green-house effect ?
- A.
Natural gas
- B.
Nuclear
- C.
Wind
- D.
Option 4
- 12.Which one do you like?
- A.
Air pollution
- B.
A consequence of global warming is
- C.
Flooding
- D.
Increased humidity
- 13.Which of the following metals is common to both brass and bronze ?
- A.
Copper
- B.
Alluminium
- C.
Lead
- D.
Iron
- 14.The alkanol obtained from the production of soap is?
- A.
Dihydric Alkanol
- B.
Tri hydric Alkanol
- C.
Monohydric Alkanol
- D.
Tertiary Alkanol
- 15.When a compound X is heated with concentrated tetraoxosulphate(VI)acid, it produces an alkene. X is an ?
- A.
Alkane
- B.
Alkyne
- C.
Alkanoate
- D.
Alkanol
- 16.Ripening of fruits is hastened by using?
- A.
Ethene
- B.
Ethyne
- C.
Ethane
- D.
Ethanol
- 17.Which of the following compounds is/are secondary alkanols ? i) CH CH(CH)CH OH ii) CH CH CH(OH)CH iii) CH C(OH)(CH )CH
- A.
I only
- B.
II and III only
- C.
II only
- D.
I and III only
- 18.Consider the following reaction equation: C H + 3O 2CO + 2H O . The volume of oxygen at s.t.p that will be required to burn 14g of ethene is [C H = 28; Molar volume of gas at s.t.p = 22.4dm ?
- A.
33.6dm 3 3 3 3 2 3 3 3 3 2 4(g) 2(g) → 2(g) 2 (l) 2 4 3 333 3
- B.
11.2dm
- C.
3.73dm 3
- D.
64.2dm
- 19.Which of the following substances is a non-electrolytes ?
- A.
C 6 H 12 O 6
- B.
NH 4Cl
- C.
CH 3 COOH [C H = 28; Molar volume of gas at s.t.p = 22.4dm
- D.
H 2 SO 4
- 20.The oxidation number of sulphur is +4 in ?
- A.
H 2 SO3
- B.
H 2 SO 43
- C.
Na 2 S 2 O3
- D.
All of the above
- 21.What determines the polarity at the ends of an electromagnet? The
- A.
Direction of current in the wire
- B.
Material of the coil
- C.
Material of the core of the magnet
- D.
Magnitude of the current passing through the wire
- 22.How many beta particle(s) are emitted in the radioactive decay of ?How many beta particle(s) are emitted in the radioactive decay of ?
- A.
1
- B.
2
- C.
3
- D.
5
- 23.The phenomenon by which two light atomic nuclear combine to form a heavy nuclide with the release of energy is known as?
- A.
Radioactivity
- B.
Nuclear fusion
- C.
nuclear fission
- D.
chain reaction
- 24.In a p-type semiconductor, the ?
- A.
Number of holes are equal to the number of electrons
- B.
Electrical resistivity increases
- C.
Holes are the majority charge carriers
- D.
Electrons are the majority charge carriers
- 25.Let Δx be the uncertainty in the measurements of position and Δp the uncertainty in measurement of momentum. The uncertainty principle relation is given as ?
- A.
Δx . Δp ≥h
- B.
Δx . Δp > h
- C.
Δx . Δp ≤ h
- D.
Δx . Δp = h
Questions: 5 | Attempts: 66 | Last updated: Sep 1, 2020
-
Sample QuestionSeleccione la fuente de poder que tiene encendido por switch manual
Questions: 15 | Attempts: 119 | Last updated: Jan 21, 2013
-
Sample QuestionWhy did Thailand announce a nationwide ban on tree cutting in 1989?
Questions: 6 | Attempts: 62 | Last updated: Jul 30, 2011
-
Sample QuestionIf the vesting is: John Smith and Jane Smith, DBA J&J Market, GI should be ran as?
Back to top