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Recently added practice questions

12321. A boat covers a distance of 30 km in 2 hours running downstream while returning it covers the same distance in 3 hours. What is the speed of the boat in still water?
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A. None of these

B. 8km/hr

C. 15 km/hr

D. 14 km/hr

E. 12km/hr

12322. A black body when hot, emits heat radiation of _____________ wavelengths?
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A. One fixed

B. Large

C. All

D. Small

12323. A black body does not ____________ radiation?
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A. Absorb or emit

B. Refract

C. Reflect

D. Both B. & C.
12324. A bird that can fly backwards?
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A. Cardinal Bird

B. Humming Bird

C. Bat

D. Crimson Sun Bird

12325. A Bingham fluid of viscosity ? = 10 Pa.s and yield stress, ?0 = 10 KPa, is shared between flat parallel plates separated by a distance of 10-3 m. The top plate is moving with a velocity of 1 m/s. The shear stress on the plate is________________?
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A. 10 KPa

B. 20 KPa

C. 30 KPa

D. 40 KPa

12326. A bill can be pass by ____________ in both houses of the Parliament ?
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A. None of above

B. 1/3 majority of total membership

C. 3/4 majority of total membership

D. 2/3 majority of total membership
12327. A big rectangular plot of area 4320 Sq.m is divided into 3 square shaped smaller plots by fencing parallel to the smaller side of the plot. However, some area of land was still left as a square plot could not be formed. So 3 more square shaped plots were formed by fencing parallel to the longer side of the original plot. Such that no area of the plot was left a surplus. What are the dimensions of the original plot?
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A. 120m 36m

B. 160m 27m

C. 240m 18m

D. 135m 32m

12328. A big advantage of PERT over Gantt charts is that in the former case_________________?
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A. activities and events are clearly shown

B. early start and late finish of an activity are clearly marked

C. activity times are clear

D. critical path can be easily determined

E. inter-relationship among activities is clearly shown
12329. A bench vice has following type of threads____________________?
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A. metric

B. BSW

C. square

D. acme

E. buttress

12330. A being legally beound to appear before the High Court of (Sindh) in obedience to a subpoena issuing from that Court, intentionally omits to appear. A has committed offence under_________________?
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A. Section 175, P.P.C.

B. Section 170, P.P.C.

C. Section 174, P.P.C.

D. None of these

12331. A bed of spherical particles (specific gravity 2.5) of uniform size 1500 ?m is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Erguns equation for the above fluid-particle system (in SI units) is given below: ? P/L = 375 103 VOM + 10.94 106 V2 OM (SI units) If water is to be used as the fluidising medium, in actual operation, the above bed has a height = 1 m. What is the porosity of the fluidised bed ?
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A. 0.8

B. 0.5

C. 0.7

D. 0.2

12332. A bearing metal should not have___________________?
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A. Low co-efficient of friction

B. Low thermal conductivity

C. Enough plasticity

D. High toughness

12333. A beam curved in plan is designed for_______________?
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A. bending moment, shear and torsion

B. bending moment and torsion

C. bending moment and shear

D. shear and torsion

12334. A batsman makes a score of 64 runs in the 16th innings and thus increased his average by 3. Find his average after the 16th inning?
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A. 18

B. 17

C. 19

D. 29

12335. A batch reactor is characterised by ____________________?
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A. Variation in reactor volume

B. Constant residence time

C. Very low conversion

D. Variation in extent of reaction and properties of the reaction mixture with time
12336. A barometer measures the _____________ pressure?
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A. Absolute

B. Gauge

C. Absolute as well as gauge

D. dynamic

12337. A bank which lends to developing nations to help them increase their capital stock and this achieve economic growth ?
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A. None

B. IMF

C. Commercial bank

D. Islamic Bank

12338. A balloon lifting in air follows the following principle_________________?
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A. all of the above

B. law of gravitation

C. principle of buoyancy

D. continuity equation

E. Archimedes principle

12339. A bag contains nine yellow balls, three white balls and four red balls. In how many ways can two balls be drawn from the bag?
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A. C?

B. ?C?

C. ?C?

D. C?

12340. A bag contains 50 paise, 1 rupee and 2 rupee coins in the ratio 2:5:8. If the total amount is Rs. 352, find the total number of coins in the bag.
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A. 160

B. 240

C. 250

D. 200

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