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WorksheetsMock Recruitment Test
Total questions: 50
Worksheet time: 1hrs 15mins
If 5/6 n=60, then 1/6 =?
8
10
12
50
In writing all of the integers from 1 to 300, how many times is the digit 1 used?
160
16
260
360
A, P, R, X, S and Z are sitting in a row. S and Z are in the center. A and P are at the ends. R is sitting to the left of A.
Who is to the right of P?
X
A
S
Z
What is antonym for INTRANSIGENT?
Uncompromising
Cooperative
Inflexible
Arrogant
Pointing to a photograph of a boy Ahmad said, "He is the son of the only son of my mother." How is Ahmad related to that boy?
Father
Cousin
Uncle
Nephew
A car wash can wash 8 cars in 18 minutes. At this rate, how many cars can the car wash in 3 hours?
13
40.5
80
125
No work is done by the system when a reaction occurs at constant:
Volume
Temperature
Pressure
None
Out of the following refrigeration cycles, which one has maximum COP?
Air Cycle
Carnot Cycle
Vapor compression cycle
Rankine Cycle
The ages of Sohail, Afzal and Bilal are 17, 16 and 12 respectively. If the age of Aslam also included the average of the ages is increased by 5. What is the age of Aslam?
32
33
34
35
Find the average of the first 97 natural numbers.
49
37
58
49.5
In a certain code MAIN is written as ‘9364’ and DEAR is written as ‘8532’. How is MEND written in that code?
9548
9458
9538
9528
Find the missing number:
9, 10, ?, 15, 19
11
12
13
14
If the total distance is 540 km and total time is 3 h 20 min + 2 h 40 min, what would be average speed?
50 km/h
15 km/h
140 km/h
90 km/h
Arrange the following words in a meaningful sequence.
1. Poverty 2. Population 3. Death 4. Unemployment 5. Disease
2, 3, 4, 5, 1
2, 4, 1, 5, 3
3, 4, 2, 5, 1
4, 5, 1, 2, 3
Yesterday Sagher earned Rs. 100 less than Bilal, and today Sagher earned Rs. 75 more than Bilal. Which of the following must be true about Sagher's total earnings for the two days compared to Bilal's?
Sagher earned % of what Bilal earned
Sagher earned $17.50 more than Bilal
Sagher earned $2.50 more than Bilal
Sagher earned $25 less than Bilal
Nuclear energy is _______ dangerous to be used widely.
so
such
too
that
Observe the dots on a dice (one to six dots) in the following figures. How many dots are contained on the face opposite to that containing four dots?
3
5
6
Cannot be determined
Yard is to inch as quart is to:
gallon
milk
liquid
ounce
Choose the alternative which is closely resembles the mirror image of the given combination.
1
2
3
4
Choose the word which is different from the rest.
Argentine
Asia
Africa
Australia
Which of the following is the unit of coefficient of radiant heat transfer?
W/m2
W/m. K
W/m2 K
W/K
Which heat exchanger type offers the highest heat transfer rate per unit surface area?
Shell and tube heat exchanger
Plate heat exchanger
Finned-tube heat exchanger
Double-pipe heat exchanger
Which of the following is not a pressure measuring device?
Galvanometer
Manometer
Barometer
None
How many numbers between 200 and 500 are divisible by 13?
23
17
15
32
How many times you can subtract 10 from 90?
Two times
One time
Five times
Nine times
Statement: People who speak too much against dowry are those who had taken it themselves.
Conclusions:
I. It is easier said than done.
II. People have double standards.
Only conclusion I follows
Only conclusion II follows
Neither I nor II follows
Both I and II follow
What is the number of straight lines and the number of triangles in the given figure?
10 straight lines and 34 triangles
9 straight lines and 34 triangles
9 straight lines and 36 triangles
10 straight lines and 36 triangles
The opening of 200 mesh screen Taylor series:
0.0074 cm
0.0074 mm
0.0047 cm
0.008 cm
What is the primary purpose of a packed column in chemical engineering processes?
Enhance heat transfer
Facilitate liquid-liquid extraction
Promote mass transfer between gas and liquid phases
Promote efficient mixing
What is the maximum theoretical suction lift (meters) of a centrifugal pump?
5
10
50
30
Which one is true about isotope?
Same number of neutrons
Same mass number
Same physical properties
Same chemical properties
Which of the following is the best tube material from thermal conductivity point of view alone?
Aluminium
Stainless Steel
Copper
Carbon Steel
The number of degrees of freedom at the triple point of water is:
0
1
2
3
Cracking is an:
Exothermic process
Endothermic process
Favored at very low temperature
None of these
The most suitable reactor for carrying out an auto-thermal reaction is a:
Batch Reactor
CSTR
Semi-batch Reactor
Plug Flow Reactor
The compressors operating range is between two major regions. These two regions are surge, which is the lower flow limit of stable operation _, which is the maximum flow through the compressor at a given operating speed.
Stonewall
Sonic
Laminar
Turbulent
Which of the following polymers is not biodegradable?
Polyethylene (PE)
Polylactic acid (PLA)
Polyhydroxy-alkanoates (PHA)
Polyglycolic acid (PGA)
In operation, the pressures are about equal, but the stripping temperature is much higher than the absorption temperature.
Pressure-swing
Flow swing
Solvent swing
Temperature-swing
In a chemical process, what is the primary function of a vent stack?
Enhance heat transfer
Remove impurities from a gas stream
Control the temperature of a reactor
Regulate the flow rate of a fluid
At what value of reflux ratio, number of theoretical plates in a distillation column is minimum?
0
1
∞
< 1
What is the primary purpose of a chemical engineering process control system?
Calculate material balances
Ensure the safe and efficient operation of a process
Monitor environmental emissions
Provide real-time chemical analysis
It was Sunday on Jan 1, 2006. What was the day of the week Jan 1, 2010?
Sunday
Saturday
Monday
Friday
At critical point of substance:
The surface tension vanishes
Liquid and vapor have the same density
There is no distinction between liquid and vapor phases
All of the these
For laminar flow through a closed conduit:
Vmax = 2Vav
Vmax = Vav
Vmax = 1.5Vav
Vmax = 0.5Vav
Identify the figure that completes the pattern.
1
2
3
4
Choose the figure which is different from the rest.
1
2
3
4
5
Which type of control system in chemical engineering uses a sensor to measure a disturbance and adjusts a control variable in anticipation of a process disturbance?
On-off control
Feed forward control
PID control
Feedback control
Conversion increases with increase in temperature in case of reaction:
Autocatalytic
Irreversible
Reversible endothermic
Reversible exothermic
Which of the following must be followed by the flow of a fluid (real or ideal)?
I. Newton’s law of viscosity II. Newton’s second law of motion
III. The continuity equation
IV. Velocity of boundary layer must be zero relative to boundary
V. Fluid cannot penetrate a boundary
I, II, III
II, III, V
I, II, V
II, IV, V
What is the thermal conductivity of a perfect heat insulator?
0
1
∞
Between 0 and ∞
