| Post Name | LAB ASSISTANT (Kerala Water Authority) |
|---|---|
| Question Paper Code | 084/2024 |
| Category Code | 431/2023 |
| Date of Test | 13 July 2024 |
| Medium of Question | ENGLISH |
| Exam Type | OMR Examination |
| Total Questions | 100 |
1
The optical path within cuvette is always :
Answer
D. Both
2
Insoluble solid can be removed from a liquid by :
Answer
B. Filtration
3
Find the correct pair regarding Colour code for Biomedical waste collection bag :
(i) Black : Body parts
(ii) Red : Contaminated Plastic
(iii) White : Sharps
(iv) Yellow : Placenta
Answer
D. Both
4
Heat in the presence of Cu at 573 K
Answer
D. 1, 3, 4
5
Most common causes of electrical hazard, the laboratory staff should be aware of is :
Answer
A. Long flexible electrical connecting cables
6
Reagents with accurate concentrations can be made using :
Answer
C. Volumetric Flask
7
The following is not true about deionised water :
Answer
C. High Electrical Conductivity
8
The cleaning of Culture plates after use include the following steps in order :
1. Rinse thoroughly with tap water
2. Autoclaving 30 minutes at 121 Β°C
3. Brush with detergent and water
4. Dry
5. Pour out the contents of media
6. Rinse with distilled water
Answer
B. 2, 5, 3, 1, 6, 4
9
The main responsibilities of Laboratory professional, include all except :
Answer
A. Give Medical Advice and necessary medical treatment to patients
10
First aid for minor burns donβt include :
Answer
B. Apply ice or butter
11
The βblue topβ vacutainer tube contains which anticoagulant?
Answer
B. Sodium citrate
12
Drabkinβs reagent is used for haemoglobin estimation. It contains :
Answer
C. Potassium ferricyanide, Potassium dihydrogen β phosphate, Potassium cyanide
13
Internal diameter of a capillary haematocrit tube is :
Answer
D. 1 mm
14
In automated blood cell counters, which method uses light scattering and fluorescence to
analyse the blood cells?
Answer
A. Flow cytometry
15
Leishmanβs stain is used to stain blood cells routinely. The primary mechanism of action of
Leishmanβs stain on blood cells is :
Answer
D. It interacts with nucleic acids in the cell
16
Macrophages play a crucial role in phagocytosis, tissue repair etc. The blood cell which is
modified into macrophages in tissue is :
Answer
B. Monocyte
17
Which condition may be indicated by an increased reticulocyte count?
Answer
A. Haemolytic anaemia
18
In which all hypersensitivity reactions do eosinophilia is seen :
Answer
D. Type I and Type IV hypersensitivity reactions
19
Which of the following is true with the Bombay blood group?
Answer
B. H gene is absent
20
A negative result in the indirect Coombβs test suggest :
Answer
C. The absence of antibodies in the recipientβs serum
21
Both naturally occurring and immune antibodies may or may not bind complement. All the
main blood group antibodies bind complement, except :
Answer
A. Rh antibodies
22
Name the coagulation test which is prolonged in a patient with haemophilia :
Answer
D. dimer test
23
Westergrenβs method is used to find Erythrocyte sedimentation rate. The working distance of
the Westergrenβs tube used in this test is :
Answer
C. 200 mm
24
The sperm count below 15 million/ml of semen is termed as :
Answer
C. Oligospermia
25
Which condition is indicated by the presence of high levels of protein in the urine?
Answer
C. Glomerulo nephritis
26
Blood in sputum is termed as :
Answer
A. Haemoptysis
27
The presence of fat globule in the stool is indicative of :
Answer
D. Malabsorption Syndrome
28
Presence of Neutrophils in CSF indicates :
Answer
D. Bacterial meningitis
29
The Anticoagulant of choice for blood sugar estimation is :
Answer
B. Sodium fluoride
30
The commonly used tumor marker for prostate cancer is :
Answer
A. Prostate - specific antigen
31
The marker used to differentiate between cardiac and skeletal muscle damage is :
Answer
A. Troponin I
32
The elevated alkaline phosphatase is seen in :
Answer
D. Bone disease
084/2024 6 A
33
The type of cholesterol commonly termed as good cholesterol is :
Answer
C. HDL
34
The normal value of sodium level in serum is :
Answer
D. 135-145 mEq/L
35
The hormone which regulates metabolism, heart rate and body temperature :
Answer
A. Thyroid hormone
36
The test provides an average blood glucose level over the past 2-3 months is :
Answer
B. HbA1C
37
POCT stands for :
Answer
B. Point Of Care Testing
38
The colorimeter works under the principle of :
Answer
A. Beerβs Lambertβs Law
39
Which shape describes bacteria with helically twisted cylinders?
Answer
B. Spirochaete
40
Liquid paraffin can be sterilised by :
Answer
A. Hot air oven
41
ββββββ is a clearing agent used in tissue processing.
Answer
A. Acetone
42
Which is the instrument used to cut frozen sections?
Answer
C. Cryostat
43
The counter stain that can be used in Gramβs stain :
Answer
D. All of the above
44
Cerebral malaria is caused by :
Answer
C. Plasmodium falciparum
45
A diagnostic technique used for very early detection of cancer :
Answer
C. FNAC
46
Which is the nuclear stain used in Papanicolau staining?
Answer
A. Harriβs Haematoxylin
47
RPR test is used for the serodiagnosis of :
Answer
B. Syphilis
48
Which of the following is not a method for anaerobic culture of bacteria?
Answer
D. Clot culture
49
Filarial worms inhabit which part of the human body?
Answer
D. Lymph nodes
50
The tissue embedding medium used in electron microscopy is :
Answer
D. Epoxy resin
51
βCandelaβ is the SI unit of which fundamental quantity?
Answer
C. Luminous Intensity
52
A particle of mass βmβ is moving in a Uniform Circular motion with constant speed βvβ along a
circle of radius βrβ. The acceleration of the particle is :
v2
Answer
B. r
v m v2
53
The frictional force required to keep the solid object on its surface at rest is called?
Answer
A. Static friction
54
The variation of acceleration due to gravity with height from the surface of the earth is that :
Answer
B. Decreases with increase in height
55
The statement, βThe pressure in a fluid at rest is the same at all points if they are at the
same heightβ represents which of the following?
Answer
D. Pascalβs law
56
The Celsius scale temperature corresponding to 212Β°F in the Fahrenheit scale is :
Answer
B. 100 Β°C
57
The period of oscillation of a secondβs pendulum is :
Answer
B. 2 seconds
58
Among the following statements about electric field lines select the correct option :
(i) They start from positive charge and end in negative charge.
(ii) Two electric field lines can never cross each other.
(iii) Electric field lines do not form any closed loops.
Answer
D. All the statements are correct
59
The magnetic field inside a long solenoid of length βLβ and number of turns βN β and carrying
current I will be :
ΞΌ0n I
Answer
Question Cancelled
60
Which electromagnetic radiation plays an important role in maintaining the Earthβs warmth
through the greenhouse effect?
Answer
B. Infrared Rays
61
Which of the following is the most electrically conductive element?
Answer
A. Silver
62
A ray of light passes from medium 1 to medium 2. If no refraction occurs, then the angle
between the incident light and surface of separation should be :
Answer
D. 90Β°
A 9 084/2024
63
Which of the following mirror is used as rear view mirror in vehicles?
Answer
A. Convex mirror
64
The main application of Zener diode is :
Answer
D. Voltage regulation
65
Name the series of Hydrogen spectrum corresponds to visible region :
Answer
A. Balmer series
66
A solution contains 0.5 moles of solute in a 2 litres of solution. What is the molarity of
the solution?
Answer
A. 0.25 M
67
For an electron in a 4s orbital what are the possible values of the angular momentum
quantum number I :
Answer
B. 0
68
During charging of a Lead Storage cell which electrode undergoes the Oxidation reaction :
Answer
D. Lead Dioxide Electrode
69
Which of the following term is an example of a lyophobic colloid?
Answer
C. Sulphur
70
Which of the following elements has the highest ionization enthalpy in the second period of
modern periodic table?
Answer
D. C
71
Which of the following equation depicts the reducing nature of hydrogen peroxide?
Answer
B. I2 + H2O2 + 2OHβ β 2Iβ + 2H2O + O2
72
Hyponatremia refers to a condition characterized by :
Answer
D. Low levels of sodium in the blood
73
The IUPAC name for :
Cl
NO2
CH3
Answer
B. 1-chloro 4-methyl 2-nitrobenzene
74
Which pair of compounds gives Tollenβs test?
Answer
A. Glucose and Fructose
75
The commercial name of poly acrylonitrile is :
Answer
A. Orlon
76
Which of the following reagents can be used to oxidise primary alcohols to aldehydes?
1. Cr0O3in anhydrous medium
2. KMn0Osz in acidic medium
3. Pyridinium Chlorochromate
4. Heat in the presence of Cu at 573 K
Answer
D. 1,3,4
77
Which of the following is an example for analgesic?
Answer
B. Aspirine
78
The discovery of fullerenes led to the development of which significant area in materials
science :
Answer
B. Nanotechnology
79
Which of the following is not a transition metal?
Answer
D. Thallium
80
Which step is not involved in decomposition?
Answer
B. Stratification
81
Name the enzyme used to break the bacterial cell for DNA isolation :
Answer
D. Lysozyme
82
Name the part that guide the entry of pollen tube into the embryo sac / female gametophyte is :
Answer
C. Filiform apparatus
83
Which one of the following pair is correct?
(i) Elaioplast β Store oil/fat
(ii) Amyloplast β Store carotenoid
(iii) Aleuroplast β Store protein
Answer
A. Both (i) and (iii)
84
Single cotyledon present in Maize seed is called :
Answer
B. Scutellum
85
Which pest is controlled by cryIAb gene of Bacillus thuringiensis?
Answer
A. Corn borer
86
Name the new breed of sheep produced in Punjab by crossing Bikaneri ewes and
Marino rams :
Answer
B. Hisardale
87
Which type of synovial joint allows for the rotational movement between the Atlas and Axis
vertebrae?
Answer
C. Pivot Joint
88
What is the effect of ADH on blood vessels, and how does this influence Kidney function?
Answer
B. Vasoconstriction; increases blood pressure and GFR
89
In which method is the ovum collected from a donor transferred into the fallopian tube of
another female?
Answer
C. Gamete Intra Fallopian Transfer
90
Which feature is NOT typically associated with Downβs Syndrome?
Answer
D. Gynaecomastia
91
Which class of Satellite DNA is specifically used in DNA finger printing due to its high
degree of polymorphism?
Answer
B. Minisatellite
92
Which characteristic is NOT typical of Cancer cells?
Answer
C. Formation of Benign tumors only
93
Which of the following Phyla show radial symmetry?
Answer
B. Coelenterata
94
In a club, 60 men play cricket 30 play tennis and 15 play both cricket and tennis. How many
play at least one of these two games?
Answer
D. 75
95
If A = { x , y, z} B = {1, 2} then the number of relations from A into B is :
Answer
A. 64
96
Which of the following function describe an βontoβ function?
Answer
C. Let A = {β 1,1} and g : A β A is given by g ( x ) = x 3
97
How many terms of the Arithmetic progression 1, 4, 7,.... are needed to give the sum 715?
Answer
A. 22
98
What is the value of 2 sin 2 30 β 3 cos2 45 + cos2 60 ?
3 β3
Answer
B. 4 4
1 β5
99
What is the equation of the ellipse whose vertices are at (5, 0) , (β 5, 0) and foci at
(4, 0), (β 4, 0) ?
Answer
C. 9x 2 + 25 y2 = 225
100
Find the equation of the line that has x-intercept β3 and is perpendicular to 3x + 5 y = 4 :
Answer
D. 5x β 3 y +15 = 0
ββββββββ
084/2024 14 A
Discussion
Ask a doubt or share a tip.
No comments yet β start the discussion.