Name of The Organization : Satish Dhawan Space Centre / SHAR
Name of the Subject : Chemical
Post : Technician – B
Website : http://www.shar.gov.in/SAMPLES.html
Download Sample Question Paper: https://www.pdfquestion.in/uploads/8140Chemical.pdf
SHAR Technician – B Chemical Model Question Paper
Maximum Marks: 100
Time: 1 ½ Hours
Related : SHAR Pump Operator & Refrigeration & AC Model Question Paper : www.pdfquestion.in/8146.html
Instruction to Candidates
1. Answer all questions. Each question carries TWO marks.
2. All are objective type questions. Answers are to be given only in the O.M.R. ANSWER SHEET provided.
3. In case of any doubt in the Hindi Text, English Text only may be followed.
Sample Questions
1. If a-b= 3 and a3-b3=117, then a+b is equal to
A) 5
B) 7
C) 9
D) 11
2. Which one of the following is NOT equal to 0.0000000875?
A) 8.75 * 10-7
B) 875 * 10-9
C) * 10-6
D) * 10-7
3. The sum of two numbers is 9; their product is 18. The sum of their reciprocals is
A)1/10
B) 1/2
C) 2
D) 4
4. The sides of a triangle are in the ratio of 4: 6: 7, then
A) The triangle is obtuse-angled
B) The triangle is acute- angled
C) The triangle is right- angled
D) The triangle is impossible
5. log 1 + log 10 + log 100 =
A) 3
B) 1
C) 10
D) 111
6. The line y = 4 – 2x intersects x-axis at
A) 1
B) 0
C) 4
D) 2
7. If one root of 2×2-12x+m = 0 is half of the other then the value of m is
A) 4
B) 8
C) 12
D) 16
8. What is the volume of a cylinder having a diameter of 2m and a??height of 10m
A) 62.8m³
B) 31.4m³
C) 47.1m³
D) 15.7m³
9. What is the value of square root of 22500?
A) 225
B) 150
C) 160
D) 180
10. 450 =___________ /radians
A) p/6
B) p/4
C) p/3
D) p/2
11. What is the formula used for converting temperature from Fahrenheit to Centigrade
(A) C=(F-32)9/5
(B) C=(F-32)5/9
(C) C=f*9/5+32
(D) C= F*5/9+32
12. The quantity of heat required to change the temperature of 1 kg of a substance by 10C is called its
A) Specific heat
B) Total energy
C) Latent heat
D) Heat of fusion
13. The time period of a simple pendulum depends on
A) Mass of the bob
B) Amplitude of oscillation
C) Length of the pendulum
D) All the above
14. Which of the following cannot transmit sound?
A) Water
B) Inert gases
C) Metal
D) Vacuum
15. A large Reynolds number is an indication of
A) Streamline flow
B) Laminar flow
C) Steady flow
D) Highly turbulent flow
Refrigeration & AC Model Question Paper :
1. Critical pressure is the pressure I]
a) Above which explosion of liquid occurs
b) Above which a liquid will remain liquid
c) Above which a liquid turns into vapour
d) Above which a liquid remains only in the liquid state
2. Power consumption of screw compressors compared to D reciprocating compressors is
a) Less b) More c) Equal d) More or equal
3. A 100% relative humidity of air implies that D
a) Wet bulb temperature equals to the dew point temperature
b) Dew point temperature equals to the dry bulb temperature
c) Saturation temperature equals to the dry bulb temperature
d) Dry bulb , Wet bulb, dew point and saturation temperature are equal
4. One ton of refrigeration implies that the machine has a D refrigerating effect (capacity-heat extraction from the system being cooled) equal to
a) 50 kCaI/s b) 50 kCal/min c) 50 kCaI/hr d) 50 kCal/day
5. Which of the following additive is primarily used to avoid water [I freezing at 0° C for usage as secondary refrigerant
a) Hydrochloric acid
b) Glycol
c) Hydro sulphuric acid
d) Carbonic acid
About Us :
Satish Dhawan Space Centre SHAR (SDSC SHAR), Sriharikota, the Spaceport of India, is one of the lead centres of Indian Space Research Organisation (ISRO), Department of Space (DOS), Government of India. The Centre provides world class launch base infrastructure for national and international customers in accomplishing diverse launch vehicle/satellite missions for remote sensing, communication, navigation & scientific purposes and is one among the best known names of the Spaceports of the world today.
The space centre, which was popularly known as SHAR (Sriharikota Range) was renamed as Satish Dhawan Space Centre SHAR on September 5, 2002, in fond memory of Prof. Satish Dhawan, former Chairman of ISRO.