Description : According to the Indian Standards the specific gravity is the ratio of the unit weight of soil solids to that of water at a temperature of (A) 17°C (B) 23°C (C) 27°C (D) 30°C
Last Answer : (C) 27°C
Description : Thermophilic micro-organism grow well at temperature– 1) 10°C – 20°C 2) 20°C – 40°C 3) 50°C – 60°C 4) 5°C – 7°C
Last Answer : 3) 50°C – 60°C
Description : If a heat pump cycle operates between the condenser temperature of +27°C and evaporator temperature of - 23°C,then the Carnot COP will be (a) 0.2 (b) 1.2 (c) 5 (d) 6
Last Answer : Ans: d
Description : A refrigeration cycle operates between condenser temperature of + 27°C and evaporator temperature of- 23°C. TheCarnot coefficient of performance of cycle will be (a) 0.2 (b) 1.2 (c) 5 (d) 6
Last Answer : Ans: c
Description : Unsaturated air (with dry bulb and wet bulb temperatures being 45°C and 25°C respectively) is passed through a water spray chamber maintained at 23°C. The air will be cooled and (A) ... temperature decreasing B) Humidified at constant wet bulb temperature (C) Dehumidified (D) None of these
Last Answer : (A) Humidified with wet bulb temperature decreasing
Description : The optimum temperature for the Banana crop is— (A) 30°C (B) 23°C (C) 21•5°C (D) 26•5°C
Last Answer : (B) 23°C
Description : Nitrobenzene (boiling point = 210.6°C) is steam distilled at 1 atm pressure. Nitrobenzene will distil off __________ °C. (A) At < 100 (B) At > 210.6 (C) Between 100 and 210 (D) None of these
Last Answer : (A) At < 100
Description : Lemons are usually degreened at: a. 6°C b. 16°C c. 26°C d. 30°C
Last Answer : 16°C
Description : The boiling point of ammonia is i. a) -10.5°C. c) -33.3°C p. b) -30°C. d) -77.7°C
Last Answer : -33.3°C p.
Description : The low water datum for a lake is defined as the surface of the lake when it is at elevation (A) 180.5 m above M.S.L. (B) 190.5 m above M.S.L. (C) 170.5 m above M.S.L. (D) 200.0 m above M.S.L.
Last Answer : (A) 180.5 m above M.S.L.
Description : If the maximum spring rise is 2 m and height of the waves expected is 4 m , then the breakwater height above the datum will be (A) 2.5 m (B) 4 m (C) 5 m (D) 7
Last Answer : (D) 7
Description : Working from the whole to the part is followed as the fundamental principle of surveying so as to : 1. Distribute errors 2. Improve ease of working 3. Prevent accumulation of errors 4. Compensate error in a way 5. Refer to common datum ... (a) 1, 2 and 4 (b) 1, 3 and 5 (c) 3 and 4 (d) 2 and 5
Last Answer : (c) 3 and 4
Description : Co-efficient of performance of a Carnot cycle refrigerator operating between - 23°C and + 27°C is (A) 3 (B) 5 (C) 0.5 (D) 1.5
Last Answer : Option A
Description : A relatively fixed point of known elevation above datum, is called (A) Bench mark (B) Datum point (C) Reduced level (D) Reference point
Last Answer : (A) Bench mark
Description : The line normal to the plumb line is known as (A) Horizontal line (B) Level line (C) Datum line (D) Vertical line
Last Answer : (B) Level line
Description : In open channels, the specific energy is the (A) Total energy per unit discharge (B) Total energy measured with respect to the datum passing through the bottom of the channel (C) Total energy measured above the horizontal datum (D) Kinetic energy plotted above the free surface of water
Last Answer : Answer: Option B
Description : If H is the height of the wave expected, then the height of the breakwater is generally taken as (A) 1.2 H to 1.25 H above the datum (B) 1.2 H to 1.25 H above the low water level (C) 1.2 H to 1.25 H above the high water level (D) 1.2 H to 1.25 H above the mean sea level
Last Answer : (C) 1.2 H to 1.25 H above the high water level
Description : Which one of the following statements is correct? (A) The soundings are made with respect to the mean low water (B) The soundings which are below the datum are written in black on the map (C) The spot heights of the features above datum are written in red on the map (D) All the above
Last Answer : (D) All the above
Description : Which of the following pairs are correctly matched? 1. Piezometric head : Sum of datum head and pressure head 2. Dynamic head : Sum of datum head and velocity head 3. Stagnation head : Sum of Piezometric head and velocity head 4. Total head ... (b) 1, 3 & 4 only (c) 2, 3 & 4 only (d) 1, 2, 3 & 4
Last Answer : (b) 1, 3 & 4 only
Description : Which one of the following best describes the growth conditions for a typical fungus? a. pH 3; 23°C; no oxygen gas present b. pH 8; 30°C; no oxygen gas present c. pH 6; 30°C; oxygen gas present d. pH 3; 23°C; oxygen gas present
Last Answer : c. pH 6; 30°C; oxygen gas present
Description : A cylindrical specimen of saturated soil failed under an axial vertical stress of 100kN/m² when it was laterally unconfmed. The failure plane was inclined to the horizontal plane at an angle of 45°. The values of cohesion and angle of ... N/mm² and 0° (C) 0.2 N/mm² and 0° (D) 0.05 N/mm² and 45°
Description : If deflection angles are measured in a closed traverse, the difference between the sum of the right-hand and that of the left hand angles should be equal to (A) 0° (B) 90° (C) 180° (D) 360°
Last Answer : (D) 360°
Description : If the whole circle bearing of a line is 180°, its reduced bearing is (A) S 0° E (B) S 0° W (C) S (D) N
Last Answer : (C) S
Description : In optical reading instruments (A) The vertical circle is usually continuous from 0° to 359° (B) The readings increase when the telescope is elevated in the face left position (C) The readings decrease when the telescope is elevated in the face right position (D) All the above
Description : A projectile is fired at an angle to the vertical. Its horizontal range will be maximum when is (A) 0° (B) 30° (C) 45° (D) 60°
Last Answer : (C) 45°
Description : The angle of internal friction of clays, is usually (A) 0° to 5° (B) 5° to 20° (C) 20° to 30° (D) 30° to 45
Description : The density of water is 1000 kg/m3 at (A) 0° C (B) 0° K (C) 4° C (D) 20° C
Last Answer : Answer: Option C
Description : Density of water is maximum at (A) 0° C (B) 0° K (C) 4° C
Description : Plywood is made by bonding together thin layers of wood in such a way that the angle between grains of any layer to grains of adjacent layers is (A) 0° (B) 30° (C) 45° (D) 90°
Last Answer : Answer: Option D
Description : The angle between skew back of a flat arch and the horizontal, is kept approximately equal to (A) 0° (B) 30° (C) 60° (D) 90
Description : In any good staircase, the maximum and minimum pitch respectively should be (A) 90° and 0° (B) 75° and 30° (C) 60° and 10° (D) 40° and 25°
Last Answer : Option D
Description : The temperature at which both the Fahrenheit and Centigrade scales have the same value is – (1) -60° (2) -40° (3) -20° (4) 0°
Last Answer : (2) -40° Explanation: The temperature when both the Celsius and Fahrenheit scales are the same is -40 degrees.
Description : The temperature of a liquid is 32° F. What is its temperature in Celsius scale? (1) 32° C (2) 0° C (3) 100° C (4) 212° C
Last Answer : (2) 0° C
Description : At what temperature a body will not radiate any heat energy? (1) 0° C (2) 273° C (3) 100° C (4) -273° C
Last Answer : (4) -273° C
Description : __________ temperature scale assigns 0° to the 'ice point' and 80° to the 'steam point'. (A) Celsius (B) Rankine (C) Reaumur (D) Fahrenheit
Last Answer : (C) Reaumur
Description : Ice point' is designated on Fahrenheit temperature scale by (A) 0° (B) 32° (C) 62° (D) 212°
Last Answer : (B) 32°
Last Answer : 0° C
Description : The CG is found to be 652.5 inches aft of the datum.. What percentage is the CG to the MAC?
Last Answer : 20%
Description : In , the coordinates are mentioned in the program with respect to onePrevious point. a.Incremental System b.Absolute System c.Datum System d.Screen Coordinates System
Last Answer : a.Incremental System
Description : In , the coordinates are mentioned in the program with respect to onereference point a.Incremental System b.Absolute System c.Datum System d.Screen Coordinates System
Last Answer : b.Absolute System
Description : From which one of the following is quinine extracted? (1) Sarpagandha (2) Opium (3) Cinchona (4) Datum
Last Answer : (3) Cinchona Explanation: Quinine, as a component of the bark of the cinchona tree, was used to treat malaria from as early as the 1600s. The bark of trees in this genus is the source of a variety of alkaloids, the most familiar of which is quinine, an antipyretic (anti-fever) agent.
Description : A memory that is capable of determining whether a given datum is contained in one of its address is a. ROM b. PROM c. CAM d. RAM
Last Answer : CAM
Description : A Venturimeter cannot be used for the direct measurement of (A) Datum difference in the stretch of pipe-flow (B) Pressure difference in the flow through pipeline (C) Friction loss in pipe flow (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : In the above problem, find the potential energy of the mass with respect to datum. (Formula: P = mgz/k ) a. 4875 j b. 0.51 j c. 0.46 j d. None of the above
Last Answer : 4875 j
Description : A mass of 5kg is 100m above a given datum where local g = 9.75 m/s2 . Find the gravitational force in newtons. (Formula: Fg= mg/k ) a. 48.75 N b. 50 N c. 45 N d. None of the above
Last Answer : 48.75 N
Description : An aeroplane of 110,000kg has its CG at 22.6m aft of the datum. The CG limits are 18m to 22m aft of the datum. How much mass must be removed from a hold 30m aft of the datum to bring the CG to its mid point? a. 26,800 kg b. 28,600 kg c. 86,200 kg d. 62,800 kg
Last Answer : b. 28,600 kg
Last Answer : c. CAM
Description : Contour interval on a map sheet denotes (a) Vertical distance of contour lines above the datum plane (b) Vertical distance between two successive contour lines (c) Slope distance between two successive contour lines (d) Horizontal distance between two successive contour lines
Last Answer : (b) Vertical distance between two successive contour lines